Head wearable display

Abstract

A head-wearable computer system for providing a computer-generated experience.SOLUTION: The head-mountable display device comprises a housing defining a front opening and a rear opening, a display screen disposed in the front opening, a display assembly disposed in the rear opening, a first fastening strap coupled to the housing and including a first electronic component, a second fastening strap coupled to the housing and including a second electronic component, and an anchoring band extending between and coupled to the first fastening strap and the second fastening strap.SELECTED DRAWING: FIG. 1-1A

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application is related to U.S. Non-provisional Patent Application No. 18 / 663,007, filed May 13, 2024, entitled "HEAD MOUNTABLE DISPLAY", U.S. Non-provisional Patent Application No. 18 / 662,994, filed May 13, 2024, entitled "HEAD MOUNTABLE DISPLAY", U.S. Non-provisional Patent Application No. 18 / 662,980, filed May 13, 2024, entitled "HEAD MOUNTABLE DISPLAY", U.S. Non-provisional Patent Application No. 18 / 662,964, filed May 13, 2024, entitled "HEAD MOUNTABLE DISPLAY", U.S. Non-provisional Patent Application No. 18 / 662,954, filed May 13, 2024, entitled "HEAD MOUNTABLE DISPLAY", U.S. Non-Provisional Patent Application No. 18 / 662,921 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,906 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,883 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,857 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,826 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,781 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,739 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,641 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,562 ...641 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024; U.S. Non-Provisional Patent Application No. 18 / 662,562 entitled "HEAD MOUNTABLE DISPLAY", filed May 13, 2024;No. 488, filed May 13, 2024, U.S. Non-provisional Patent Application No. 18 / 662,410, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,851, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,796, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,780, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,713, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,714, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,715, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,716, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,717, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,718, filed September 29, 2023, U.S. Non-provisional Patent Application No. 18 / 478,719 ... U.S. Non-Provisional Patent Application No. 18 / 478,696 entitled "HEAD MOUNTABLE DISPLAY", filed September 29, 2023; U.S. Non-Provisional Patent Application No. 18 / 478,618 entitled "HEAD MOUNTABLE DISPLAY", filed September 29, 2023; U.S. Non-Provisional Patent Application No. 18 / 478,596 entitled "HEAD MOUNTABLE DISPLAY", filed September 29, 2023; U.S. Non-Provisional Patent Application No. 18 / 478,506 entitled "HEAD MOUNTABLE DISPLAY", filed September 29, 2023; U.S. Non-Provisional Patent Application No. 18 / 478,463 entitled "HEAD MOUNTABLE DISPLAY", filed September 29, 2023; U.S. Non-provisional Patent Application No. 18 / 478,364, entitled "HEAD MOUNTABLE DISPLAY," filed on September 29, 2023; U.S. Non-provisional Patent Application No. 18 / 478,305, entitled "HEAD MOUNTABLE DISPLAY," filed on September 29, 2023; U.S. Non-provisional Patent Application No. 18 / 478,123, entitled "HEAD MOUNTABLE DISPLAY," filed on September 28, 2023; U.S. Provisional Patent Application No. 63 / 586,403, entitled "HEAD MOUNTABLE DISPLAY," filed on June 2, 2023; U.S. Provisional Patent Application No. 63 / 506, entitled "HEAD MOUNTABLE DISPLAY," filed on June 2, 2023;No. 020, which claims the benefit of U.S. Provisional Patent Application No. 63 / 502,408, filed May 15, 2023, entitled "HEAD MOUNTABLE DISPLAY," the entire disclosure of which is incorporated herein by reference in its entirety.

[0002] The present disclosure relates generally to head-wearable computer systems that provide computer-generated experiences, including but not limited to electronic devices that provide virtual reality and mixed reality experiences via a display. [Background technology]

[0003] The development of computer systems for augmented reality, including head-worn computer systems, has progressed significantly in recent years. Exemplary augmented reality environments include at least some virtual elements that replace or augment the physical world. Input devices such as cameras, controllers, joysticks, touch-sensitive surfaces, and touchscreen displays for computer systems and other electronic computing devices are used to interact with the virtual / augmented reality environment. Exemplary virtual elements include virtual objects such as digital images, video, text, icons, and control elements such as buttons and other graphics. Summary of the Invention

[0004] In at least one example of the present disclosure, a head-wearable display device includes a housing defining a front opening and a rear opening, a display screen disposed within the front opening, a display assembly disposed within the rear opening, a first fastening strap coupled to the housing and including a first electronic component, a second fastening strap coupled to the housing and including a second electronic component, and a fastening band extending between the first fastening strap and the second fastening strap and coupled to the first fastening strap and the second fastening strap.

[0005] In one example of the present disclosure, the display assembly is a first display assembly, and the head-wearable display device further includes a second display assembly disposed within the rear opening and including a second display screen and a third display screen.

[0006] In one example of the present disclosure, a first display screen is oriented to project light in a first direction, and a second display screen and a third display screen are oriented to direct light in a second direction opposite the first direction.

[0007] In one example of the present disclosure, the first electronic component includes a speaker.

[0008] In one example of the present disclosure, the second electronic component includes a computing component.

[0009] In one example of the present disclosure, the display screen has a curvature.

[0010] In one example of the present disclosure, the curvature follows the contours of the user's face.

[0011] In one example of the present disclosure, the fixation band comprises a flexible textile material.

[0012] In at least one example of the present disclosure, a display device includes a housing defining a first opening, a second opening opposite the first opening, an interior volume, a first aperture between the first opening and the second opening, and a second aperture between the first opening and the second opening. The display device includes a front cover assembly disposed within the first opening, a rear display assembly disposed within the interior volume, an elastic curtain covering the second opening between the housing and the rear display assembly, a dial disposed within the first aperture, and a button disposed within the second aperture.

[0013] In one example of the present disclosure, the rear display assembly includes a display screen, and the display device further includes an adjustment mechanism configured to adjust the position of the display screen.

[0014] In one example of the present disclosure, the dial is electrically coupled to an adjustment mechanism, and when the dial is operated, the adjustment mechanism adjusts the position of the display screen.

[0015] In one example of the present disclosure, the front cover assembly includes a first display screen configured to project light in a first direction, and the rear display assembly includes a second display screen configured to project light in a second direction different from the first direction.

[0016] In one example of the present disclosure, the first display screen is curved.

[0017] In one example of the present disclosure, the second direction is opposite to the first direction.

[0018] In one example of the present disclosure, the display device further includes a light seal coupled to the housing around the second opening, the light seal configured to press against the user's face around the user's eyes to block light from outside the device, including light from the first display screen, from reaching the user's eyes.

[0019] In at least one example of the present disclosure, a head-wearable electronic device includes a housing defining an interior volume and a front opening, a display assembly disposed within the interior volume, a curved front cover assembly disposed within the front opening, and a securing mechanism extending rearward from the housing. The securing mechanism includes a first electronic strap including a first proximal end coupled to the housing and a first distal end opposite the first proximal end, a second electronic strap including a second proximal end coupled to the housing and a second distal end opposite the second proximal end, a first band, and a second band. The first band includes a first end coupled to the first distal end and a second end coupled to the second distal end, and the second band extends between the first electronic strap and the second electronic strap.

[0020] In one example of the present disclosure, the second band includes a first end coupled to the first electronic strap between a first proximal end and a first distal end, and a second end coupled to the second electronic strap between a second proximal end and a second distal end.

[0021] In one example of the present disclosure, the first electronic strap and the second electronic strap include a plastic material, and the first band and the second band include a flexible material.

[0022] In one example of the present disclosure, the flexible material comprises a woven material.

[0023] In one example of the present disclosure, the first electronics strap defines an interior strap volume and includes an electronic component disposed in the interior strap volume.

[0024] The disclosure will be readily understood from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference numerals designate like structural elements and in which: I: System-wide [Brief explanation of the drawings]

[0025] [Figure 1-1A] 1 shows a front perspective view of an example head-wearable device (HMD).

[0026] [Figure 1-1B] 1 shows a rear perspective view of an example of an HMD.

[0027] [Figure 1-2] An example of an HMD is shown below.

[0028] [Figure 1-3] The display module of the HMD is shown.

[0029] [Figure 1-4] The display module of the HMD is shown. II: Cover glass

[0030] [Figure 2.0-1] An example of an HMD is shown in Figure 2.1: System with a transparent layer.

[0031] [Figure 2.1-1] FIG. 1 is a perspective view of an exemplary system having a transparent layer, according to one embodiment.

[0032] [Figure 2.1-2] 1 is a cross-sectional side view of an exemplary transparent layer overlying an optical component that operates through the transparent layer.

[0033] [Figure 2.1-3] 2.2: System with Display and Sensors

[0034] [Figure 2.2-1] FIG. 1 is a side view of an exemplary electronic device, such as a head-mounted device, according to one embodiment.

[0035] [Figure 2.2-2] 1 is a schematic diagram of an exemplary system including an electronic device, according to one embodiment.

[0036] [Figure 2.2-3] FIG. 1 illustrates a front view of an exemplary head-mounted device, according to one embodiment.

[0037] [Figure 2.2-4] FIG. 1 illustrates a cross-sectional top view of an exemplary head-mounted device, according to one embodiment.

[0038] [Figure 2.2-5A] FIG. 1 illustrates a cross-sectional side view of an exemplary head-mounted device, according to one embodiment.

[0039] [Figure 2.2-5B] FIG. 10 is a cross-sectional side view of another exemplary head-mounted device, according to one embodiment.

[0040] [Figure 2.2-6] FIG. 1 illustrates a front view of an upper left portion of an exemplary head-mounted device with a publicly viewable display, according to one embodiment.

[0041] [Figure 2.2-7] FIG. 1 is a front view of a portion of an exemplary head-mounted device, according to an embodiment. [Figure 2.2-8] FIG. 1 is a front view of a portion of an exemplary head-mounted device, according to an embodiment. [Figure 2.2-9] FIG. 1 is a front view of a portion of an exemplary head-mounted device, according to an embodiment. [Figure 2.2-10] FIG. 1 is a front view of a portion of an exemplary head-mounted device, according to an embodiment. [Figure 2.2-11] FIG. 1 is a front view of a portion of an exemplary head-mounted device, according to an embodiment. [Figure 2.2-12] FIG. 1 is a front view of a portion of an exemplary head-mounted device, according to an embodiment.

[0042] [Figure 2.2-13] FIG. 1 is a cross-sectional top view of a portion of an exemplary head-mounted device, according to one embodiment.

[0043] [Figure 2.2-14] FIG. 1 is a cross-sectional side view of a portion of an exemplary head-mounted device including a display, according to one embodiment.

[0044] [Figure 2.2-15] 1 is a cross-sectional side view of an exemplary display cover layer overlying an exemplary optical component, according to an embodiment. [Figure 2.2-16] 1 is a cross-sectional side view of an exemplary display cover layer overlying an exemplary optical component, according to an embodiment. [Figure 2.2-17] 2.3: System with auxiliary lighting;

[0045] [Figure 2.3-1] 1 is a cross-sectional side view of a portion of an exemplary electronic device having an ambient lighting system according to one embodiment.

[0046] [Figure 2.3-2] FIG. 1 is a top view of an exemplary electronic device having an ambient lighting system according to one embodiment.

[0047] [Figure 2.3-3] 1 is a cross-sectional side view of an exemplary light source for an auxiliary lighting system according to one embodiment. [Figure 2.3-4] 1 is a cross-sectional side view of an exemplary light source for an auxiliary lighting system according to one embodiment. [Figure 2.3-5] 1 is a cross-sectional side view of an exemplary light source for an auxiliary lighting system according to one embodiment. [Figure 2.3-6] 1 is a cross-sectional side view of an exemplary light source for an auxiliary lighting system according to one embodiment.

[0048] [Figure 2.3-7] 1 is a graph illustrating an exemplary lighting pattern that may be produced by an auxiliary lighting system according to one embodiment. [Figure 2.3-8] 1 is a graph illustrating an exemplary lighting pattern that may be produced by an auxiliary lighting system according to one embodiment. [Figure 2.3-9] 1 is a graph illustrating an exemplary lighting pattern that may be produced by an auxiliary lighting system according to one embodiment.

[0049] [Figure 2.3-10] 2.4: System with Display and Sensor Hiding Structure 2.4 is a flowchart of exemplary operations involved in using an electronic device, such as a head-mounted device, with an auxiliary lighting system, according to one embodiment.

[0050] [Figure 2.4-1] 2.5: System with Cover Layer Sealing Structure, according to one embodiment.

[0051] [Figure 2.5-1] FIG. 1 is a side view of an exemplary electronic device, such as a head-mounted device, according to one embodiment.

[0052] [Figure 2.5-2] 1 is a schematic diagram of an exemplary system including an electronic device, according to one embodiment.

[0053] [Figure 2.5-3] FIG. 1 illustrates a front view of an exemplary head-mounted device, according to one embodiment.

[0054] [Figure 2.5-4] FIG. 2 is a front view of an exemplary shroud according to one embodiment.

[0055] [Figure 2.5-5] FIG. 2 is a top view of a portion of an exemplary head-mounted device including a display, a cover layer, and a shroud, according to one embodiment.

[0056] [Figure 2.5-6] FIG. 2 is a side view of an exemplary cover layer comprising an encapsulant material sealing an edge surface of the cover layer and overlying a laminate on the cover layer, according to one embodiment.

[0057] [Figure 2.5-7] 1 is a side view of an exemplary cover layer comprising an encapsulant material sealing an edge surface of the cover layer, according to one embodiment.

[0058] [Figure 2.5-8] FIG. 10 is a side view of an exemplary cover layer having an edge surface spaced away from a head-mounted device housing, according to one embodiment.

[0059] [Figure 2.5-9] FIG. 2 is a side view of an exemplary cover layer comprising a bumper ring or overmolded structure sealing an edge surface of the cover layer, according to one embodiment.

[0060] [Figure 2.5-10] FIG. 2 is a side view of an exemplary cover layer including a top laminate encasing an edge surface of the cover layer, according to one embodiment.

[0061] [Figure 2.5-11] FIG. 2 is a side view of an exemplary cover layer including a bottom laminate encasing an edge surface of the cover layer, according to one embodiment.

[0062] [Figure 2.5-12] FIG. 1 is a side view of an exemplary cover layer and adhesive filling gaps between an edge surface of the cover layer and a housing structure, according to one embodiment.

[0063] [Figure 2.5-13] FIG. 1 is a side view of an exemplary cover layer comprising a top laminate extending over the cover layer to a housing structure to isolate an edge surface of the cover layer from the exterior of the device, according to one embodiment.

[0064] [Figure 2.5-14] FIG. 1 is a side view of an exemplary cover layer and a lip formed from a shroud or housing member overlying an edge portion of the cover layer, according to one embodiment.

[0065] [Figure 2.5-15] 2.6: ELECTRONIC DEVICE WITH ANTENNA AND OPTICAL COMPONENTS

[0023] FIG. 2.6 is a side view of an exemplary cover layer, a lip formed from a shroud or housing member overlying an edge portion of the cover layer, and a top laminate wrapping around the edge portion, according to one embodiment.

[0066] [Figure 2.6-1]FIG. 2 is a top view of the head-mounted device.

[0067] [Figure 2.6-2] FIG. 2 is a rear view of the head-mounted device.

[0068] [Figure 2.6-3] FIG. 1 is a schematic diagram of a head-mounted device.

[0069] [Figure 2.6-4] FIG. 1 is a diagram of a portion of a head-mounted device including a head-mounted housing frame and a camera support member.

[0070] [Figure 2.6-5] FIG. 1 is a front view of a portion of a head-mounted device including a camera support structure.

[0071] [Figure 2.6-6] FIG. 1 is a side cross-sectional view of a portion of a head-mounted device including a camera support structure.

[0072] [Figure 2.6-7] FIG. 1 is a schematic diagram of a wireless communication circuit.

[0073] [Figure 2.6-8] FIG. 1 is a diagram of an antenna.

[0074] [Figure 2.6-9] 1 is a cross-sectional side view of a portion of a support structure, such as a camera support structure, including an antenna. [Figure 2.6-10] 1 is a cross-sectional side view of a portion of a support structure, such as a camera support structure, including an antenna. [Figure 2.6-11] 1 is a cross-sectional side view of a portion of a support structure, such as a camera support structure, including an antenna. [Figure 2.6-12] 1 is a cross-sectional side view of a portion of a support structure, such as a camera support structure, including an antenna.

[0075] [Figure 2.6-13] FIG. 2 is a top view of the camera support structure.

[0076] [Figure 2.6-14] FIG. 2 is a side cross-sectional view of the camera support structure.

[0077] [Figure 2.6-15] FIG. 1 is a side cross-sectional view of a portion of a camera support structure including a bending sensor for detecting camera misalignment.

[0078] [Figure 2.6-16] 10 is a side cross-sectional view of a portion of a camera support structure with an adjustable orientation camera.

[0079] [Figure 3-1] FIG. 1 is a diagram of the display and front cover assembly of the HMD.

[0080] [Figure 3-2] 1 is a cross-sectional view of a portion of a display assembly of an exemplary HMD.

[0081] [Figure 3-3] FIG. 2 is a side view of an example display assembly of an HMD.

[0082] [Figure 3-4] 1 is a side cross-sectional view of a portion of a display assembly of an exemplary HMD.

[0083] [Figure 3-4A] 1 is a side cross-sectional view of a portion of a display assembly of an exemplary HMD.

[0084] [Figure 3-4B] FIG. 2 is a perspective cross-sectional view of a portion of a display assembly of an exemplary HMD.

[0085] [Figure 3-4C]FIG. 2 is a perspective cross-sectional view of a portion of a display assembly of an exemplary HMD.

[0086] [Figure 3-5] FIG. 2 is a perspective cross-sectional view of a portion of a display assembly of an exemplary HMD.

[0087] [Figure 3-6] 4 is a perspective cross-sectional view of a portion of a display assembly of an exemplary HMD. IV: Shroud 4.0: System with Display and Sensor Hiding Structure

[0088] [Figure 4-1] FIG. 2 is a front view of an exemplary shroud according to one embodiment.

[0089] [Figure 4-2] FIG. 2 is a front view of a portion of an exemplary shroud with a curved outer surround, according to one embodiment.

[0090] [Figure 4-3] FIG. 1 is a front view of a portion of an exemplary front display according to one embodiment.

[0091] [Figure 4-4] 1 is a cross-sectional top view of a portion of an exemplary display according to one embodiment.

[0092] [Figure 4-5] FIG. 1 is a cross-sectional top view of a portion of an exemplary head-mounted device including a display and a shroud, according to one embodiment.

[0093] [Figure 4-6] 1 is a cross-sectional side view of a portion of an exemplary shroud with through-hole openings for accommodating optical components, according to one embodiment.

[0094] [Figure 4-7] FIG. 2 is a cross-sectional side view of a portion of an exemplary shroud with a window member within a through-hole opening, according to one embodiment.

[0095] [Figure 4-8] 1 is a cross-sectional side view of a portion of an exemplary head-mounted device including a shroud covering a display, according to one embodiment.

[0096] [Figure 4-9] FIG. 1 illustrates a cross-sectional side view of an exemplary head-mounted device optical component mounting configuration with an optical component window coating, according to one embodiment.

[0097] [Figure 4-10] FIG. 10 illustrates a cross-sectional side view of an exemplary head-mounted device optical component mounting configuration using shroud through-hole openings according to one embodiment.

[0098] [Figure 4-11] 4.1: System with Cover Layer Sealing Structure

[0099] [Figure 4.1-1] FIG. 1 is a side view of an exemplary electronic device, such as a head-mounted device, according to one embodiment.

[0100] [Figure 4.1-2] 1 is a schematic diagram of an exemplary system including an electronic device, according to one embodiment.

[0101] [Figure 4.1-3] FIG. 1 illustrates a front view of an exemplary head-mounted device, according to one embodiment.

[0102] [Figure 4.1-4] FIG. 2 is a front view of an exemplary shroud according to one embodiment.

[0103] [Figure 4.1-5] FIG. 2 is a top view of a portion of an exemplary head-mounted device including a display, a cover layer, and a shroud, according to one embodiment.

[0104] [Figure 4.1-6] FIG. 2 is a side view of an exemplary cover layer comprising an encapsulant material sealing an edge surface of the cover layer and overlying a laminate on the cover layer, according to one embodiment.

[0105] [Figure 4.1-7] 1 is a side view of an exemplary cover layer comprising an encapsulant material sealing an edge surface of the cover layer, according to one embodiment.

[0106] [Figure 4.1-8] FIG. 10 is a side view of an exemplary cover layer having an edge surface spaced away from a head-mounted device housing, according to one embodiment.

[0107] [Figure 4.1-9] FIG. 2 is a side view of an exemplary cover layer comprising a bumper ring or overmolded structure sealing an edge surface of the cover layer, according to one embodiment.

[0108] [Figure 4.1-10] FIG. 2 is a side view of an exemplary cover layer including a top laminate encasing an edge surface of the cover layer, according to one embodiment.

[0109] [Figure 4.1-11] FIG. 2 is a side view of an exemplary cover layer including a bottom laminate encasing an edge surface of the cover layer, according to one embodiment.

[0110] [Figure 4.1-12] FIG. 1 is a side view of an exemplary cover layer and adhesive filling gaps between an edge surface of the cover layer and a housing structure, according to one embodiment.

[0111] [Figure 4.1-13]FIG. 1 is a side view of an exemplary cover layer comprising a top laminate extending over the cover layer to a housing structure to isolate an edge surface of the cover layer from the exterior of the device, according to one embodiment.

[0112] [Figure 4.1-14] FIG. 1 is a side view of an exemplary cover layer and a lip formed from a shroud or housing member overlying an edge portion of the cover layer, according to one embodiment.

[0113] [Figure 4.1-15] FIG. 1 is a side view of an exemplary cover layer, a lip formed from a shroud or housing member that overlaps an edge portion of the cover layer, and a top laminate that wraps around the edge portion, according to one embodiment.

[0114] [Figure 4.1-16] FIG. 2 is a side view of an exemplary cover layer comprising upper and lower laminates, according to some embodiments. [Figure 4.1-17] FIG. 2 is a side view of an exemplary cover layer comprising upper and lower laminates, according to some embodiments.

[0115] [Figure 4.1-18] 5.1: Electronic Device Seal 5.2: Dust Seal 5.3: Cover Layer 5.4: Dust Seal 5.5: Cover Layer 5.6: Dust Seal 5.7: Cover Layer 5.8: Dust Seal 5.9: Cover Layer 5.10: Dust Seal 5.11: Cover Layer 5.12: Dust Seal 5.13: Cover Layer 5.14: Dust Seal 5.15: Cover Layer 5.16: Dust Seal 5.17: Cover Layer 5.18: Dust Seal 5.19: Cover Layer 5.19: Dust Seal 5.20: Dust Seal 5.21: Dust Seal 5.22: Dust Seal 5.23: Dust Seal 5.24: Dust Seal 5.25: Dust Seal 5.26: Dust Seal 5.27: Dust Seal 5.28: Dust Seal 5.29: Dust Seal 5.20: Dust Seal 5.21: Dust Seal 5.21: Dust Seal 5.22: Dust Seal 5.23: Dust Seal 5.24: Dust Seal 5.25: Dust Seal 5.26: Dust Seal 5.27: Dust Seal 5.28: Dust Seal 5.29 ...9: Dust

[0116] [Figure 5-1] 1 illustrates a cross-sectional view of a portion of an electronic device, according to an example.

[0117] [Figure 5-2] 1 illustrates a cross-sectional view of a seal, according to an example.

[0118] [Figure 5-3] 1 illustrates a cross-sectional view of an electronic device, according to an example.

[0119] [Figure 5-4A]1 illustrates a top perspective view of an electronic component and a seal, according to an example.

[0120] [Figure 5-4B] 1 illustrates a cross-sectional view of a portion of an electronic device, according to an example.

[0121] [Figure 5-4C] 6 illustrates a cross-sectional view of a portion of an electronic device, according to an example.

[0122] [Figure 6-0] 1 shows a diagram of an example of an HMD.

[0123] [Figure 6-1] FIG. 1 shows a front perspective view of an example of a sensor system for an HMD.

[0124] [Figure 6-2] FIG. 1 illustrates a bottom perspective view of an example of a sensor system for an HMD.

[0125] [Figure 6-3] 1 illustrates a bottom perspective view of an example of a sensor system for an HMD without a front cover assembly.

[0126] [Figure 6-4] 7 shows a bottom perspective view of an example of a sensor system of an HMD.

[0127] [Figure 7.0-1] 7.1: Electronic device having an antenna mounting structure.

[0128] [Figure 7.1-1] FIG. 1 illustrates a top view of an exemplary electronic device, such as a head-mounted device, according to one embodiment.

[0129] [Figure 7.1-2] 1 is a diagram of an exemplary antenna for an electronic device, according to one embodiment.

[0130] [Figure 7.1-3] FIG. 1 is a perspective view of an exemplary antenna on an exemplary unidirectional structured foam antenna bias structure, according to one embodiment.

[0131] [Figure 7.1-4] FIG. 1 illustrates a top view of an exemplary structured foam member, according to one embodiment.

[0132] [Figure 7.1-5] 1A-1C illustrate how a structured foam member can exhibit preferential unidirectional compression and expansion properties, according to one embodiment.

[0133] [Figure 7.1-6] 7.2: Electronic Device with Millimeter-Wave Antenna

[0134] [Figure 7.2-1] FIG. 2 is a top view of an exemplary electronic device having an antenna, according to one embodiment.

[0135] [Figure 7.2-2] FIG. 2 is a front view of an exemplary antenna for an electronic device, according to one embodiment.

[0136] [Figure 7.2-3] FIG. 1 is a side view of an exemplary millimeter-wave antenna comprising an array of patch antenna elements, according to one embodiment.

[0137] [Figure 7.2-4] FIG. 1 is a side cross-sectional view of a corner of an exemplary head-mounted device with an antenna, according to one embodiment.

[0138] [Figure 7.2-5] 7.3: Electronic Device with Antenna Having Compound Curvature, according to one embodiment.

[0139] [Figure 7.3-1] 1 is a top view of an exemplary electronic device including an antenna, according to one embodiment.

[0140] [Figure 7.3-2] 1 is a diagram of an exemplary antenna for an electronic device, according to one embodiment.

[0141] [Figure 7.3-3] 1 is a perspective view of an exemplary flexible printed circuit antenna having compound curvature according to one embodiment. FIG.

[0142] [Figure 7.3-4] 1 is a side view of an exemplary apparatus for laminating a flexible printed circuit antenna to a dielectric member such as a polymer layer, according to one embodiment. FIG.

[0143] [Figure 7.3-5] FIG. 2 is a side view of an exemplary printed circuit antenna having a compound curvature mounted on a compound curvature surface of a dielectric member having a compound curvature, according to one embodiment.

[0144] [Figure 7.3-6] 8 is a perspective view of an exemplary printed circuit antenna having a compound curvature laminated to an inner surface of a dielectric member having a compound curvature, according to one embodiment.

[0145] [Figure 8-0] 1 shows a diagram of an HMD with a logic board.

[0146] [Figure 8-1] FIG. 1 shows a plan view of an example of a logic board.

[0147] [Figure 8-2] FIG. 1 shows a top view of an example of a logic board.

[0148] [Figure 8-3] An enlarged view of the logic board shown in Figure 8-2 is shown.

[0149] [Figure 8-4] 1 shows an example of a logic board.

[0150] [Figure 8-5] 9 shows a perspective view of the logic board coupled with the fan assembly of the HMD.

[0151] [Figure 9.0-1] Shown is a diagram of an HMD. 9.1: Air deflector for the cooling system in a head-mounted device

[0152] [Figure 9.1-1] 1 shows a schematic diagram of an example of a head-mounted device.

[0153] [Figure 9.1-2] FIG. 1 shows a front view of an example of a head-mounted device.

[0154] [Figure 9.1-3] FIG. 1 illustrates a side view of an example cooling system.

[0155] [Figure 9.1-4] FIG. 1 illustrates a side view of an example cooling system having an air deflector.

[0156] [Figure 9.1-5] FIG. 1 illustrates a side view of an example cooling system having an air deflector.

[0157] [Figure 9.1-6] FIG. 1 illustrates a side view of an example cooling system having an air deflector.

[0158] [Figure 9.1-7]1 illustrates a side view of an example of airflow within a cooling system.

[0159] [Figure 9.1-8] 1 illustrates a side view of an example of airflow within a cooling system.

[0160] [Figure 9.1-9] 9.2: Fan with Debris Mitigation

[0161] [Figure 9.2-1] FIG. 1 illustrates a side view of a head-wearable device according to some embodiments of the present disclosure.

[0162] [Figure 9.2-2] FIG. 1 illustrates a perspective view of a fan of a head-wearable device according to some embodiments of the present disclosure.

[0163] [Figure 9.2-3] 9.2-1 includes the fan of FIG. 9.2-2 in operation to generate flow, according to some embodiments of the present disclosure.

[0164] [Figure 9.2-4] 9.2-3 shows another cross-sectional view of the assembly of FIG. 9.2-3 with the fan of FIG. 9.2-2 stationary and particles entering through the outlet, according to some embodiments of the present disclosure.

[0165] [Figure 9.2-5] 1A-1D show perspective and cross-sectional views of a fan having an annular ring for directing incoming particles, according to some embodiments of the present disclosure.

[0166] [Figure 9.2-6] 1A-1D show perspective and cross-sectional views of a fan having an annular ring for directing incoming particles, according to some embodiments of the present disclosure.

[0167] [Figure 9.2-7]1 illustrates a cross-sectional view of a fan having a base plate with variable thickness, according to some embodiments of the present disclosure.

[0168] [Figure 9.2-8] 1A-1D show diagrams of a fan having a base plate forming an opening, according to some embodiments of the present disclosure.

[0169] [Figure 9.2-9] FIG. 10 illustrates a bottom view of a fan with a base plate forming openings and adhesive pads according to some embodiments of the present disclosure.

[0170] [Figure 9.2-10] 9.2-9 shows a cross-sectional view of the fan of FIG. 9.2-9 according to some embodiments of the present disclosure.

[0171] [Figure 9.2-11] 1A-1C show diagrams of a fan having a base plate formed opening, according to some embodiments of the present disclosure.

[0172] [Figure 9.2-12] 9.2-11 show perspective and cross-sectional views of the fan of FIGS. 9.2-11 according to some embodiments of the present disclosure.

[0173] [Figure 9.2-13] 9.3: Ventilation

[0174] [Figure 9.3-1] 1 shows a diagram of an example of an HMD.

[0175] [Figure 9.3-2] FIG. 1 illustrates a rear perspective view of an example ventilation assembly for an HMD.

[0176] [Figure 9.3-3] 1 shows a perspective cross-sectional view of an example of a fan assembly of an HMD.

[0177] [Figure 9.3-4] 1 illustrates a cross-sectional view of an example fan assembly of an HMD.

[0178] [Figure 9.3-5] 1 shows a top view of an example of a fan of an HMD.

[0179] [Figure 9.3-6] FIG. 2 shows a bottom view of an example of a fan of an HMD.

[0180] [Figure 9.3-7] 1 shows an exploded view of an example of a fan of an HMD.

[0181] [Figure 9.3-8] FIG. 1 illustrates a rear perspective view of an example fan and circuit board assembly of an HMD.

[0182] [Figure 9.3-9] FIG. 1 shows a perspective view of an example of a fan and circuit board assembly of an HMD.

[0183] [Figure 9.3-10] FIG. 1 shows an enlarged perspective view of an example fan and circuit board assembly of an HMD.

[0184] [Figure 9.3-11] 1 shows a side cross-sectional view of an example of a fan and circuit board assembly of an HMD. X: Chassis

[0185] [Figure 10-0] 1 shows a diagram of an example of an HMD.

[0186] [Figure 10-1] 1 shows a diagram of an example of an HMD.

[0187] [Figure 10-2] 1 shows a rear perspective view of an example of an HMD.

[0188] [Figure 10-3] 1 shows a front perspective view of an example frame assembly of an HMD.

[0189] [Figure 10-4] 1 shows a front view of an example frame assembly of an HMD.

[0190] [Figure 10-5] 1 shows a front view of an example frame assembly of an HMD.

[0191] [Figure 10-6] 1 shows an enlarged cross-sectional view of a portion of an example of an HMD.

[0192] [Figure 11-1] An example of an HMD is shown in the figure. 11.1: IPD adjustment

[0193] [Figure 11.1-1] 11.1.1: Crown;

[0194] [Figure 11.1.1-1] 11.1.1.1: Head-Mounted Display Adjustment Mechanism

[0195] [Figure 11.1.1.1-1] FIG. 2 is a top view of the head-mounted display.

[0196] [Figure 11.1.1.1-2A] FIG. 11 is a detailed view of an actuator located within a head mounted display similar to the head mounted display of FIG. 11.1.1.1-1.

[0197] [Figure 11.1.1.1-2B] FIG. 11.1.1.1-2B is a partial exploded cross-sectional view of the actuator of FIG. 11.1.1.1-2A.

[0198] [Figure 11.1.1.1-3A]FIG. 11 is a detailed view of another actuator located in a head mounted display similar to the head mounted display of FIG. 11.1.1.1-1.

[0199] [Figure 11.1.1.1-3B] FIG. 11.1.1.1-3A is a partially exploded cross-sectional view of the actuator.

[0200] [Figure 11.1.1.1-4A] FIG. 11 is a detailed view of another actuator located in a head mounted display similar to the head mounted display of FIG. 11.1.1.1-1.

[0201] [Figure 11.1.1.1-4B] FIG. 11.1.1.1-4A is a partially exploded cross-sectional view of the actuator of FIG.

[0202] [Figure 11.1.1.1-5A] 11.1.1.1-2A, 11.1.1.1-2B, 11.1.1.1-3A, 11.1.1.1-3B, 11.1.1.1-4A, and 11.1.1.1-4B are detailed views of the electromagnetic damping mechanism for an actuator similar to the actuators of Figures 11.1.1.1-2A, 11.1.1.1-2B, 11.1.1.1-3A, 11.1.1.1-3B, 11.1.1.1-4A, and 11.1.1.1-4B.

[0203] [Figure 11.1.1.1-5B] 11.1.1.1-2A, 11.1.1.1-2B, 11.1.1.1-3A, 11.1.1.1-3B, 11.1.1.1-4A, and 11.1.1.1-4B are detailed views of alternative electromagnetic damping mechanisms for actuators similar to those of FIGS. 11.1.1.1-2A, 11.1.1.1-2B, 11.1.1.1-3A, 11.1.1.1-3B, 11.1.1.1-4A, and 11.1.1.1-4B.

[0204] [Figure 11.1.1.1-6A] Detail views of the mechanical damping mechanism for an actuator similar to the actuators of Figures 11.1.1.1-2A, 11.1.1.1-2B, 11.1.1.1-3A, 11.1.1.1-3B, 11.1.1.1-4A, and 11.1.1.1-4B.

[0205] [Figure 11.1.1.1-6B]11.1.1.1-2A, 11.1.1.1-2B, 11.1.1.1-3A, 11.1.1.1-3B, 11.1.1.1-4A, and 11.1.1.1-4B are detailed views of alternative mechanical damping mechanisms for actuators similar to those of FIGS. 11.1.1.1-2A, 11.1.1.1-2B, 11.1.1.1-3A, 11.1.1.1-3B, 11.1.1.1-4A, and 11.1.1.1-4B.

[0206] [Figure 11.1.1.1-7] FIG. 11 is a flowchart illustrating the operation process of an actuator disposed in a head-mounted display similar to the head-mounted display of FIG. 11.1.1.1-1.

[0207] [Figure 11.1.1.1-8] Figure 11.1.1.1-1 shows the schematic hardware configuration of the controller in the head-mounted display. 11.1.1.2: Crown input and feedback for head-wearable devices

[0208] [Figure 11.1.1.2-1] 1 illustrates a top view of a head-wearable device according to some embodiments of the present disclosure.

[0209] [Figure 11.1.1.2-2] 1 illustrates a top exploded view of a head-wearable device according to some embodiments of the present disclosure.

[0210] [Figure 11.1.1.2-3] FIG. 11 shows a cross-sectional view of a crown module of the head-wearable device of FIG. 11.1.1.2-2 according to some embodiments of the present disclosure.

[0211] [Figure 11.1.1.2-4] FIG. 11 shows a partial cross-sectional view of a crown module of the head-wearable device of FIG. 11.1.1.2-2 according to some embodiments of the present disclosure.

[0212] [Figure 11.1.1.2-5] FIG. 11 shows a cross-sectional view of the crown module of FIG. 11.1.1.2-4 along line AA, according to some embodiments of the present disclosure.

[0213] [Figure 11.1.1.2-6] FIG. 11 shows a side view of the crown module of FIGS. 11.1.1.2-4 according to some embodiments of the present disclosure.

[0214] [Figure 11.1.1.2-7] FIG. 11 shows a circuit diagram of the sensor of the crown module of FIGS. 11.1.1.2-4 in accordance with some embodiments of the present disclosure.

[0215] [Figure 11.1.1.2-8] 11.1.2: Wishbone and Mustache: A block diagram of a head-wearable device according to some embodiments of the present disclosure.

[0216] [Figure 11.1.2-1] 1 shows a front perspective view of an HMD with the front cover and display assembly omitted to show an example sensor system.

[0217] [Figure 11.1.2-2] 1 shows a perspective view of a portion of a sensor system including a sensor coupled to a bracket.

[0218] [Figure 11.1.2-3] 1 illustrates a rear perspective view of a portion of an exemplary HMD including a display module bracket.

[0219] [Figure 11.1.2-4] 1 illustrates a top view of a portion of a display assembly of an exemplary HMD.

[0220] [Figure 11.1.2-5] 11.1.3: Upper Guide Rod System

[0221] [Figure 11.1.3-1] 1 illustrates a rear perspective view of an exemplary HMD with a display adjustment system.

[0222] [Figure 11.1.3-2] 1 shows an enlarged view thereof with the display module omitted.

[0223] [Figure 11.1.3-3] An expanded view of the system shown in Figure 11.1.3-1 is shown, with the display module omitted. 11.1.3.1: Motor

[0224] [Figure 11.1.3.1-1] 1 illustrates a rear perspective view of an exemplary HMD with a display adjustment system.

[0225] [Figure 11.1.3.1-2] 1 illustrates a perspective view of an example of a motor of a display adjustment system of an exemplary HMD.

[0226] [Figure 11.1.3.1-3] 11.1.3.1.1: Electronic Device Having Optical Module Positioning System

[0227] [Figure 11.1.3.1.1-1] FIG. 1 illustrates a top view of an exemplary head-mounted device, according to one embodiment.

[0228] [Figure 11.1.3.1.1-2] FIG. 1 illustrates a rear view of an exemplary head-mounted device, according to one embodiment.

[0229] [Figure 11.1.3.1.1-3] FIG. 1 is a schematic diagram of an exemplary head-mounted device, according to one embodiment.

[0230] [Figure 11.1.3.1.1-4] FIG. 1 illustrates a rear view of an inner portion of an exemplary head-mounted device, according to one embodiment.

[0231] [Figure 11.1.3.1.1-5]1 is a side view of an exemplary portion of an optical module configured to receive a guide rail and a threaded actuator rod, according to one embodiment. FIG.

[0232] [Figure 11.1.3.1.1-6] FIG. 1 illustrates an exploded cross-sectional view of an exemplary guide rod and end cap, according to one embodiment.

[0233] [Figure 11.1.3.1.1-7] FIG. 11.1.3.1.1-6 is a side view of the example guide rod of FIGS. 11.1.3.1.1-6 after installation of the end cap, according to one embodiment.

[0234] [Figure 11.1.3.1.1-8] 11.1.3.1.1-6 and 11.1.3.1.1-7 are cross-sectional top views of the exemplary guide rods of FIGS. 11.1.3.1.1-6 and 11.1.3.1.1-7, illustrating how the guide rods may be attached to a housing structure, such as a frame within a head-mounted support structure, according to one embodiment.

[0235] [Figure 11.1.3.1.1-9] 1A and 1B are diagrams of an exemplary guide rod according to an embodiment. [Figure 11.1.3.1.1-10] 1A and 1B are diagrams of an exemplary guide rod according to an embodiment. [Figure 11.1.3.1.1-11] 1A and 1B are diagrams of an exemplary guide rod according to an embodiment. [Figure 11.1.3.1.1-12] 1A and 1B are diagrams of an exemplary guide rod according to an embodiment.

[0236] [Figure 11.1.3.1.1-13] FIG. 1 illustrates a cross-sectional side view of an exemplary guide rod tube partially filled with a core, according to one embodiment.

[0237] [Figure 11.1.3.1.1-14] FIG. 1 illustrates a top view of a portion of an exemplary guide rod formed from a fiber composite material, according to one embodiment.

[0238] [Figure 11.1.3.1.1-15]FIG. 1 is a cross-sectional end view of an exemplary portion of a guide rod formed from a fiber composite material, according to one embodiment.

[0239] [Figure 11.1.3.1.1-16] FIG. 10 is a cross-sectional side view of an exemplary end of a guide rod, according to one embodiment.

[0240] [Figure 11.1.3.1.1-17] 11.1.3.1.2: Electronic Device with Lens Position Sensing

[0241] [Figure 11.1.3.1.2-1] FIG. 1 is a schematic diagram of an exemplary electronic device, such as a head-mounted display device, according to one embodiment.

[0242] [Figure 11.1.3.1.2-2] FIG. 1 illustrates a top view of an exemplary head-mounted device, according to one embodiment.

[0243] [Figure 11.1.3.1.2-3] FIG. 1 is a front view of an exemplary lens assembly having a force or position sensor according to one embodiment.

[0244] [Figure 11.1.3.1.2-4A] FIG. 1 illustrates a front view of an exemplary direct force sensor, according to one embodiment.

[0245] [Figure 11.1.3.1.2-4B] FIG. 1 illustrates a top view of an exemplary sensor woven into fabric, according to one embodiment.

[0246] [Figure 11.1.3.1.2-4C] FIG. 10 is a side cross-sectional view of an exemplary nose flap with a bladder sensor, according to one embodiment.

[0247] [Figure 11.1.3.1.2-5] FIG. 1 is a front view of an exemplary lens assembly having a proximity sensor, according to one embodiment.

[0248] [Figure 11.1.3.1.2-6] FIG. 1 is a front view of an exemplary lens assembly having a movable component that blocks a light-emitting component to indicate the position of the lens assembly, according to one embodiment.

[0249] [Figure 11.1.3.1.2-7] FIG. 1 is a circuit diagram of an exemplary control circuit for controlling a positioner motor while monitoring feedback from the motor, according to one embodiment.

[0250] [Figure 11.1.3.1.2-8] 11.1.3.2: Sensors / Encoders ...3: Sensors / Encoders 11.1.3.4: Sensors / Encoders 11.1.3.5: Sensors / Encoders 11.1.3.6: Sensors / Encoders 11.1.3.7: Sensors / Encoders 11.1.3.8: Sensors / Encode

[0251] [Figure 11.1.3.2-1] 1 illustrates a perspective view of an exemplary encoder of an HMD display adjustment system.

[0252] [Figure 11.1.3.2-2] 1 illustrates a top perspective view of an exemplary display adjustment system for an HMD.

[0253] [Figure 11.1.3.2-3] 11.1.3.2.1: Sensor Assembly

[0254] [Figure 11.1.3.2.1-1] FIG. 1 illustrates a side view of a head-wearable device according to some embodiments of the present disclosure.

[0255] [Figure 11.1.3.2.1-2] FIG. 11 shows an exploded perspective view of a sensor assembly of the head-wearable device of FIG. 11.1.3.2.1-1 according to some embodiments of the present disclosure.

[0256] [Figure 11.1.3.2.1-3]FIG. 1 shows a cross-sectional side view of a sensor assembly according to some embodiments of the present disclosure.

[0257] [Figure 11.1.3.2.1-4] FIG. 1 shows a cross-sectional side view of a sensor assembly according to some embodiments of the present disclosure.

[0258] [Figure 11.1.3.2.1-5] 11.1.3.2.2: Electronic Device with Movable Optical Assembly, according to some embodiments of the present disclosure.

[0259] [Figure 11.1.3.2.2-1] FIG. 1 illustrates an exemplary head-mounted device, according to one embodiment.

[0260] [Figure 11.1.3.2.2-2] FIG. 1 is a rear view of a portion of an exemplary head-mounted device, according to an embodiment. [Figure 11.1.3.2.2-3] FIG. 1 is a rear view of a portion of an exemplary head-mounted device, according to an embodiment.

[0261] [Figure 11.1.3.2.2-4] 1 is a graph plotting exemplary optical assembly adjustment values ​​as a function of measured eye relief for a number of different exemplary measured interpupillary distances, according to one embodiment.

[0262] [Figure 11.1.3.2.2-5] 11.1.3.2.3: Electronic Device Having a Movable Optical Assembly, according to one embodiment.

[0263] [Figure 11.1.3.2.3-1] FIG. 1 illustrates an exemplary head-mounted device, according to one embodiment.

[0264] [Figure 11.1.3.2.3-2]1 is a flowchart of exemplary operations involved in using a head-mounted device with a moveable optical assembly, according to an embodiment. [Figure 11.1.3.2.3-3] 1 is a flowchart of exemplary operations involved in using a head-mounted device with a moveable optical assembly, according to an embodiment.

[0265] [Figure 11.1.3.2.3-4] FIG. 10 is a cross-sectional end view of an exemplary split-nut based clutch that may be used in limiting the amount of force applied to an optical assembly, according to one embodiment.

[0266] [Fig. 11.1.3.2.3-5] 10A-10C illustrate how a magnetic clutch can be used in limiting the force applied to an optical assembly, according to an embodiment. [Figure 11.1.3.2.3-6] 10A-10C illustrate how a magnetic clutch can be used in limiting the force applied to an optical assembly, according to an embodiment.

[0267] [Figure 11.1.3.2.3-7] 10A-10C are diagrams of exemplary mechanical clutch mechanisms that may be used in moving an optical assembly according to an embodiment. [Figure 11.1.3.2.3-8] 10A-10C are diagrams of exemplary mechanical clutch mechanisms that may be used in moving an optical assembly according to an embodiment. [Figure 11.1.3.2.3-9] 10A-10C are diagrams of exemplary mechanical clutch mechanisms that may be used in moving an optical assembly according to an embodiment. [Figure 11.1.3.2.3-10] 10A-10C are diagrams of exemplary mechanical clutch mechanisms that may be used in moving an optical assembly according to an embodiment.

[0268] [Figure 11.1.3.2.3-11] 10A-10C illustrate how a force-sensing switch can be used in coupling a nut to an optical assembly, according to one embodiment.

[0269] [Figure 11.1.3.2.3-12] FIG. 1 illustrates how a torque sensitive switch can be coupled between a rotary motor and a portion of a rotary shaft, according to one embodiment.

[0270] [Figure 11.1.3.2.3-13] FIG. 10 is a circuit diagram illustrating how motor load can be measured electrically while moving an optical assembly, according to one embodiment.

[0271] [Fig.11.1.3.2.3-14] FIG. 1 illustrates an exemplary motor with a rotary encoder, according to one embodiment.

[0272] [Figure 11.1.3.2.3-15] FIG. 1 illustrates an exemplary motor, moveable optical assembly, and associated linear magnetic encoder according to one embodiment.

[0273] [Figure 11.1.3.2.3-16] 10 is a graph illustrating how a motor stall can be detected while controlling a motor to move an optical assembly, according to one embodiment.

[0274] [Figure 11.1.3.2.3-17] 11.1.3.3: Hard Stops 11.1.3.4: Hard Stops 11.1.3.5: Hard Stops 11.1.3.6: Hard Stops 11.1.3.7: Hard Stops 11.1.3.8: Hard Stops 11.1.3.9: Hard Stops 11.1.3.10: Hard Stops 11.1.3.11: Hard Stops 11.1.3.12: Hard Stops 11.1.3.13: Hard Stops 11.1.3.14: Hard Stops 11.1.3.15: Hard Stops 11.1.3.16: Hard Stops 11.1.3.17: Hard Stops 11.1.3.18: Hard Stops 11.1.3.19: Hard Stops 11.1.3.20: Hard Stops 11.1.3.21

[0275] [Figure 11.1.3.3-1] 1 illustrates a perspective view of a portion of an exemplary HMD with hard stops.

[0276] [Figure 11.1.3.3-2] 11.1.3.4: Upper Biasing Member

[0277] [Figure 11.1.3.4-1] 1 shows a perspective view of a portion of a display adjustment system of an exemplary HMD.

[0278] [Figure 11.1.3.4-2] 11.1.4: Lower Guide Rod System 11.1.4.1: Electronic Device with Biased Guide Rails

[0279] [Figure 11.1.4.1-1] FIG. 1 is a top view of an exemplary electronic device according to one embodiment.

[0280] [Figure 11.1.4.1-2] 1 is a schematic diagram of an exemplary electronic device according to one embodiment.

[0281] [Figure 11.1.4.1-3] 1 is a top view of an exemplary electronic device including optical module guide rails according to one embodiment.

[0282] [Figure 11.1.4.1-4] 1 is a rear view of an exemplary electronic device including optical module guide rails, according to one embodiment.

[0283] [Figure 11.1.4.1-5] 1 is a side view of an exemplary optical module with guide rails, according to one embodiment.

[0284] [Figure 11.1.4.1-6A] FIG. 10 is a cross-sectional side view of an exemplary guide rail biasing mechanism, according to an embodiment. [Figure 11.1.4.1-6B] FIG. 10 is a cross-sectional side view of an exemplary guide rail biasing mechanism, according to an embodiment. [Figure 11.1.4.1-7] FIG. 10 is a cross-sectional side view of an exemplary guide rail biasing mechanism, according to an embodiment.

[0285] [Figure 11.1.4.1-8] FIG. 1 illustrates a cross-sectional side view of a portion of a kinematic guide rail mounting system, according to one embodiment.

[0286] [Figure 11.1.4.1-9] FIG. 1 is a side view of a kinematic optics module guide rail mounting system according to one embodiment.

[0287] [Figure 11.1.4.1-10] FIG. 1 is a perspective view of an exemplary strain gauge-based guide rail sensor according to one embodiment.

[0288] [Figure 11.1.4.1-11] 11.1.4.2: Lower Guide Rod FIG. 11.1.4.2: Lower Guide Rod

[0289] [Figure 11.1.4.2-1] 11.1.4.2.1: Electrical Contacts

[0290] [Figure 11.1.4.2.1-1] 11.1.4.2.2: Biasing Member

[0291] [Figure 11.1.4.2.2-1] 11.2: Barrel and Basket 11.2.1: Lens Mounting System

[0292] [Figure 11.2.1-1] FIG. 1 illustrates an exemplary head-mounted device, according to one embodiment.

[0293] [Figure 11.2.1-2] FIG. 1 is a front view of an exemplary lens, according to one embodiment.

[0294] [Figure 11.2.1-3] 1 is a cross-sectional side view of a peripheral portion of an exemplary lens and associated mounting structure, according to an embodiment. [Figure 11.2.1-4] 1 is a cross-sectional side view of a peripheral portion of an exemplary lens and associated mounting structure, according to an embodiment.

[0295] [Figure 11.2.1-5] FIG. 10 is a top view of an exemplary lens mounting flexure, according to an embodiment. [Figure 11.2.1-6] FIG. 10 is a top view of an exemplary lens mounting flexure, according to an embodiment.

[0296] [Figure 11.2.1-7] 10A-10C are side cross-sectional views of additional exemplary flexure configurations for mounting lenses, according to an embodiment. [Figure 11.2.1-8] 10A-10C are side cross-sectional views of additional exemplary flexure configurations for mounting lenses, according to an embodiment. [Figure 11.2.1-9] 10A-10C are side cross-sectional views of additional exemplary flexure configurations for mounting lenses, according to an embodiment. [Figure 11.2.1-10] 10A-10C are side cross-sectional views of additional exemplary flexure configurations for mounting lenses, according to an embodiment.

[0297] [Figure 11.2.1-11] 11.3: Rear-Facing Camera 11.3.1: Head-Mounted Device Optical Module

[0041] FIG. 11.3.1 shows how adhesive can be introduced into the gap between an exemplary flexure and lens, according to one embodiment.

[0298] [Figure 11.3.1-1] FIG. 2 is a block diagram showing an example of a hardware configuration of a head-mounted device.

[0299] [Figure 11.3.1-2] FIG. 1 is a top view of a head-mounted device including a device housing and a support structure.

[0300] [Figure 11.3.1-3] FIG. 11.3.1-2 is a rear view taken along line AA of FIG. 11.3.1-2, showing the device housing.

[0301] [Figure 11.3.1-4]It is a perspective view showing the optical module of the head-mounted device.

[0302] [Figure 11.3.1-5] It is an exploded side view showing the components of the optical module according to an example.

[0303] [Figure 11.3.1-6] It is a front view showing a lens according to an example.

[0304] [Figure 11.3.1-7] It is a cross-sectional view taken along line B - B of FIG. 11.3.1 - 6 showing the lens.

[0305] [Figure 11.3.1-8] It is a front view showing the housing body of the optical module housing assembly.

[0306] [Figure 11.3.1-9] It is a cross-sectional view taken along line C - C of FIG. 11.3.1 - 8 showing the housing body.

[0307] [Figure 11.3.1-10] It is a front view showing the fixture of the optical module housing assembly.

[0308] [Figure 11.3.1-11] It is a cross-sectional view taken along line D - D of FIG. 11.3.1 - 10 showing the fixture.

[0309] [Figure 11.3.1-12] It is a front view showing the infrared emitter.

[0310] [Figure 11.3.1-13] It is a cross-sectional view showing a part of the infrared emitter and the peripheral wall of the housing body.

[0311] [Figure 11.3.1-14] It is a cross-sectional view showing the optical module.

[0312] [Figure 11.3.1-15] FIG. 10 is a cross-sectional view of an optical module according to an alternative implementation in which the optical axis of the eye camera is angled towards the optical axis of the optical module.

[0313] [Figure 11.3.1-16] 10 is a cross-sectional view illustrating an optical module according to an alternative implementation in which the infrared emitter is located outside the housing body of the optical module housing assembly.

[0314] [Figure 11.3.1-17] FIG. 1 is a side view illustrating a display module according to one implementation.

[0315] [Figure 11.3.1-18] 10A and 10B are top views showing interpupillary adjustment mechanisms, each supporting one of the optical modules.

[0316] [Figure 11.3.1-19] FIG. 10 is a side view showing one of the interpupillary adjustment mechanisms.

[0317] [Figure 11.3.1-20] 10 is a top cross-sectional view showing a front-facing camera supported by each of the optical modules. FIG.

[0318] [Figure 11.3.1-21] 11.3.2: Camera and LEDs: Connection of the eye camera and infrared emitter to a computing device via an optical module jumper board.

[0319] [Figure 11.3.2-1] FIG. 1 shows a perspective view of a portion of an example of an optical module of an HMD.

[0320] [Figure 11.3.2-2] 1 shows a top view of a portion of an example optical module of an HMD.

[0321] [Figure 11.3.2-3]Shows a partial perspective cutaway view of an example of an optical module of an HMD.

[0322] [Figure 11.3.2-4] Shows a partial plan view of an example of an optical module of an HMD.

[0323] [Figure 11.3.2-5] Shows a partial cutaway view of an example of an optical module of an HMD. 11.4: Display 11.4.1: Display system with interchangeable lens

[0324] [Figure 11.4.1-0] Shows a diagram of an HMD.

[0325] [Figure 11.4.1-1] Is a side view of a display system in which hidden components are shown by dashed lines (i.e., long dashed-dotted lines).

[0326] [Figure 11.4.1-2] Is a cross-sectional view of the display system of FIG. 11.4.1-1 taken along line 2-2 of FIG. 11.4.1-1.

[0327] [Figure 11.4.1-3A] Is a cross-sectional view of the display unit and the interchangeable lens assembly of the display system of FIG. 11.4.1-1 taken along line 3-3 of FIG. 11.4.1-2 and shown in an assembled state.

[0328] [Figure 11.4.1-3B] Is a cross-sectional view of the display unit and the interchangeable lens assembly of FIG. 11.4.1-3A shown in a disassembled state.

[0329] [Figure 11.4.1-4] Is a rear view of the removable lens of the display system of FIG. 11.4.1-1 in which the light emitting point, the incident point, and the exit point are shown by dashed lines (i.e., long dashed-dotted lines).

[0330] [Figure 11.4.1-5] FIG. 10 is a rear view of another embodiment of a removable lens.

[0331] [Figure 11.4.1-6] FIG. 10 is a rear view of another embodiment of a removable lens.

[0332] [Figure 11.4.1-7] FIG. 10 is a cross-sectional view of another embodiment of a removable lens.

[0333] [Figure 11.4.1-8] FIG. 10 is a cross-sectional view of another embodiment of a removable lens.

[0334] [Figure 11.4.1-9] FIG. 10 is a cross-sectional view of another embodiment of a removable lens.

[0335] [Figure 11.4.1-10A] FIG. 11.4.1-1 is a cross-sectional view of another display unit and another interchangeable lens assembly of the display system of FIG. 11.4.1-1 shown in an exploded state.

[0336] [Figure 11.4.1-10B] 11.4.1-10A is a cross-sectional view of the display unit and interchangeable lens assembly shown in an assembled state.

[0337] [Figure 11.4.1-11A] FIG. 11.4.1-1 is a cross-sectional view of another display unit and another interchangeable lens assembly of the display system of FIG. 11.4.1-1 shown in an exploded state.

[0338] [Figure 11.4.1-11B] 11.4.1-10A is a cross-sectional view of the display unit and interchangeable lens assembly shown in an assembled state.

[0339] [Figure 11.4.1-12A]FIG. 1 is a side view of a display module for use in a display system.

[0340] [Figure 11.4.1-12B] FIG. 1 is a front view of a display module for use in a display system.

[0341] [Figure 11.4.1-12C] FIG. 1 is a front view of a display module for use in a display system.

[0342] [Figure 11.4.1-12D] FIG. 1 is a front view of a display module for use in a display system.

[0343] [Figure 11.4.1-13A] FIG. 1 is a front view of a display module for use in a display system.

[0344] [Figure 11.4.1-13B] FIG. 11.4.1-13B is a front view of a removable lens assembly for use with the display module of FIGS. 11.4.1-13A.

[0345] [Figure 11.4.1-13C] 11.4.1-13A is a cross-sectional view of the display module of FIG. 11.4.1-13A taken along line 11.4.1-13A to 11.4.1-13A.

[0346] [Figure 11.4.1-13D] 11.4.1-13B is a cross-sectional view of the removable lens assembly of FIG. 11.4.1-13B taken along line 11.4.1-13B to 11.4.1-13B.

[0347] [Figure 11.4.1-13E] 11.4.1-13B is a cross-sectional view of the display module of FIG. 11.4.1-13A and the detachable lens assembly of FIG. 11.4.1-13B in a partially joined state.

[0348] [Figure 11.4.1-13F] 11.4.1-13B is a cross-sectional view of the display module of FIG. 11.4.1-13A and the detachable lens assembly of FIG. 11.4.1-13B in a combined state.

[0349] [Figure 11.4.1-14A] FIG. 1 is a schematic diagram of a display system.

[0350] [Figure 11.4.1-14B] 1 is a flowchart of a method for operating a display system.

[0351] [Figure 11.4.1-15] 1 is a flow chart of a process for determining compatibility between a removable lens and a user.

[0352] [Figure 11.4.1-16] 1 is a flow chart of a method for determining compatibility between a removable lens and a user.

[0353] [Figure 11.4.1-17] 11.4.2: Electronic Device System with Auxiliary Lens

[0354] [Figure 11.4.2-1] FIG. 1 is a schematic diagram of an exemplary electronic device, such as a head-mounted display device, according to one embodiment.

[0355] [Figure 11.4.2-2] FIG. 1 illustrates a top view of an exemplary head-mounted device, according to one embodiment.

[0356] [Figure 11.4.2-3] FIG. 1 illustrates an exemplary removable auxiliary lens, according to one embodiment.

[0357] [Figure 11.4.2-4]11.4.3: Rx Lens 11.4.4: Rx Lens 11.4.5: Rx Lens 11.4.6: Rx Lens 11.4.7: Rx Lens 11.4.8: Rx Lens 11.4.9: Rx Lens 11.4.10: Rx Lens 11.4.11: Rx Lens 11.4.2: Rx Lens 11.4

[0358] [Figure 11.4.3-1] 1 illustrates a perspective view of a portion of an optical assembly of an exemplary HMD.

[0359] [Figure 11.4.3-2] 1 illustrates a perspective view of a portion of an optical assembly of an exemplary HMD.

[0360] [Figure 11.4.3-3] 1 illustrates a perspective view of a portion of an optical assembly of an exemplary HMD.

[0361] [Figure 11.4.3-4] 1A and 1B show plan and exploded views of a portion of the optical assembly of an exemplary HMD.

[0362] [Figure 11.4.3-5] 1 illustrates a magnet array for an exemplary display module of an HMD.

[0363] [Figure 11.4.3-6] 1 shows a perspective view of an exemplary lens of an HMD.

[0364] [Figure 11.4.3-7] 1 illustrates a side view of an exemplary lens of an HMD.

[0365] [Figure 11.4.3-8] 1 illustrates a side view of an exemplary lens of an HMD.

[0366] [Figure 11.4.3-9] 1 illustrates a side view of an exemplary lens of an HMD.

[0367] [Figure 11.4.3-10] 1 illustrates a side view of an exemplary lens of an HMD.

[0368] [Figure 11.4.3-11] 11 shows a side view of an exemplary lens of an HMD.

[0369] [Figure 12.0-1] Shown is a diagram of an HMD. 12.1: Electronic device with a stretchable fabric cover

[0370] [Figure 12.1-1] FIG. 1 illustrates a top view of an exemplary head-mounted device, according to one embodiment.

[0371] [Figure 12.1-2] FIG. 1 illustrates a rear view of an exemplary head-mounted device, according to one embodiment.

[0372] [Figure 12.1-3] FIG. 1 is a schematic diagram of an exemplary head-mounted device, according to one embodiment.

[0373] [Figure 12.1-4] FIG. 1 is a top view of an exemplary head-mounted device in which the left-eye and right-eye optical modules are placed close to each other to accommodate users with small interpupillary distances, according to one embodiment.

[0374] [Figure 12.1-5] 12.1-4 is a top view of the exemplary head-mounted device of FIG. 12.1-4, in which the optical modules have been moved away from each other to accommodate users with large interpupillary distances, according to one embodiment.

[0375] [Figure 12.1-6] FIG. 1 is a front view of an exemplary cover layer comprising a stretch fabric in an unstretched state, according to one embodiment.

[0376] [Figure 12.1-7] FIG. 12.1-6 is a front view of the exemplary cover layer of FIGS. 12.1-6 with the stretch fabric in a stretched state, according to one embodiment.

[0377] [Figure 12.1-8] FIG. 12.1-6 and FIG. 12.1-7 are side views of exemplary first strands that may be used in cover layers of the type shown in FIGS. 12.1-6 and 12.1-7, according to one embodiment.

[0378] [Figure 12.1-9] FIG. 12.1-6 and FIG. 12.1-7 are side views of exemplary second strands that may be used in cover layers of the type shown in FIGS. 12.1-6 and 12.1-7, according to one embodiment.

[0379] [Figure 12.1-10] FIG. 1 is a front view of an exemplary cover layer having regions with different levels of stretchability and opacity, according to one embodiment.

[0380] [Figure 12.1-11] 12.2: CURTAIN ASSEMBLY

[0381] [Figure 12.2-1] 1 shows a diagram of an example of an HMD.

[0382] [Figure 12.2-2] 1 illustrates a rear perspective view of an exemplary HMD with a curtain assembly.

[0383] [Figure 12.2-3] 1 illustrates a rear view of an exemplary HMD with a curtain assembly.

[0384] [Figure 12.2-4] 1 illustrates a cross-sectional side view of an exemplary HMD with a curtain assembly.

[0385] [Figure 12.2-5] FIG. 1 is a perspective view of an example curtain assembly of an HMD.

[0386] [Figure 12.2-6] 1 illustrates an exploded view of an example curtain assembly for an HMD.

[0387] [Figure 12.2-7] 1 illustrates a rear view of an example curtain assembly of an HMD.

[0388] [Figure 12.2-8] 1 illustrates a partial view of an exemplary curtain assembly.

[0389] [Figure 12.2-9] 1 illustrates a partial view of an exemplary curtain assembly.

[0390] [Figure 12.2-10] 1 illustrates a partial view of an exemplary curtain assembly.

[0391] [Figure 12.2-11] 1 illustrates a partial view of an exemplary curtain assembly.

[0392] [Figure 12.2-12] 1 illustrates a partial view of an exemplary curtain assembly.

[0393] [Figure 12.2-13] 11 shows a partial view of an exemplary curtain assembly.

[0394] [Figure 13.0-1] A diagram of the HMD is shown.

[0395] [Figure 13.0-2A] FIG. 1 illustrates a front perspective view of a device seal, according to one embodiment.

[0396] [Figure 13.0-2B] 13.0-2A shows a bottom-rear perspective view of the device seal of FIG.

[0397] [Figure 13.0-2C] 13.0-2A shows a rear view of the device seal of FIG. 13.1: Electronic device with cover structure

[0398] [Figure 13.1-1] FIG. 2 is a top view of the head-mounted device.

[0399] [Figure 13.1-2] FIG. 2 is a top view of the head-mounted device.

[0400] [Figure 13.1-3] FIG. 1 is a schematic diagram of a head-mounted device.

[0401] [Figure 13.1-4] FIG. 1 is a top view of a head-mounted device with left-eye and right-eye optical modules.

[0402] [Figure 13.1-5] 13.1-4 is a top view of the head-mounted device of FIG. 13.1-4, with the optical module further spaced apart.

[0403] [Figure 13.1-6] FIG. 1 is a side cross-sectional view of a head-mounted device having a fan.

[0404] [Figure 13.1-7] 1 is an exploded perspective view of a curtain having a frame and a cover layer supported on the frame.

[0405] [Figure 13.1-8] FIG. 2 is a top view of the optical module and the cover layer.

[0406] [Figure 13.1-9] FIG. 10 is a diagram of a cover layer with a peripheral elastic band.

[0407] [Figure 13.1-10] FIG. 10 is a diagram of a cover layer having woven elastic strands forming a peripheral elastic band.

[0408] [Figure 13.1-11]FIG. 10 is an illustration of a cover layer formed from a stretchable material.

[0409] [Figure 13.1-12] FIG. 1 is a diagram of a frame for curtains.

[0410] [Figure 13.1-13] FIG. 10 is a side cross-sectional view of a cover layer with peripheral elastic bands that move relative to a rigid frame.

[0411] [Figure 13.1-14] FIG. 1 is a cross-sectional top view of a head-mounted device with a floating curtain.

[0412] [Figure 13.1-15] FIG. 10 is a rear view of the curtain with locations for attaching the curtain to a head-mounted device housing member.

[0413] [Figure 13.1-16] 1 is a cross-sectional side view of a portion of a head-mounted device showing a curtain attached to a head-mounted device housing member. FIG.

[0414] [Figure 13.1-17] 13.2: Device with removable cushion.

[0415] [Figure 13.2-1] FIG. 1 is a top view of an electronic device such as a head-mounted device.

[0416] [Figure 13.2-2] FIG. 1 is a top view of an optical module for an electronic device.

[0417] [Figure 13.2-3A] FIG. 1 is a cross-sectional top view of a head-mounted device without a removable cushion attached.

[0418] [Figure 13.2-3B] FIG. 1 is a cross-sectional top view of a head-mounted device with a removable cushion attached.

[0419] [Figure 13.2-4] FIG. 2 is a perspective view of a head mount support structure.

[0420] [Figure 13.2-5A] FIG. 10 is a rear view of the flexible structure of the head mounted support structure attached to the support post.

[0421] [Figure 13.2-5B] FIG. 10 is a rear view of a removable cushion with a stiffened portion configured to overlap a support post in a corresponding head mount support structure.

[0422] [Figure 13.2-6A] FIG. 10 is a rear view of a flexible structure with a primary mounting structure and a secondary mounting structure.

[0423] [Figure 13.2-6B] FIG. 10 is a rear view of a removable cushion with a primary and secondary mounting structure.

[0424] [Figure 13.2-7] FIG. 1 is a cross-sectional top view of a head-mounted device with a magnet and a removable cushion with a recess.

[0425] [Figure 13.2-8] FIG. 10 is a rear view of a removable cushion with a hinge structure.

[0426] [Figure 13.2-9] 13.3: Electronic device with light-blocking fabric.

[0427] [Figure 13.3-1]FIG. 2 is a top view of the head-mounted device.

[0428] [Figure 13.3-2] FIG. 2 is a rear view of the head-mounted device.

[0429] [Figure 13.3-3] FIG. 1 is a schematic diagram of a head-mounted device.

[0430] [Figure 13.3-4] FIG. 1 is a perspective view of a head-mounted device with a fabric-covered face frame.

[0431] [Figure 13.3-5A] FIG. 1 is a schematic diagram of a knitting system.

[0432] [Figure 13.3-5B] FIG. 1 is a schematic diagram of a knitting system.

[0433] [Figure 13.3-6] FIG. 1 is a diagram of a portion of a weft knit fabric layer.

[0434] [Figure 13.3-7] FIG. 1 is a cross-sectional side view of a light seal.

[0435] [Figure 13.3-8] FIG. 10 is a perspective view of an inner fabric layer for a light seal.

[0436] [Figure 13.3-9] 13.4: Electronic device with stretch fabric

[0437] [Figure 13.4-6] FIG. 1 is a diagram of a portion of a fabric layer with knit stitches.

[0438] [Figure 13.4-7] FIG. 1 is a diagram of a portion of a fabric layer with knit stitches and miss stitches.

[0439] [Figure 13.4-8] FIG. 1 is a diagram of a portion of a fabric layer with knit stitches and tuck stitches.

[0440] [Figure 13.4-9] 13.5: Non-contact Sensors in Head-Wearable Devices.

[0441] [Figure 13.5-1] 1 shows a top profile of a head-wearable device with a facial interface.

[0442] [Figure 13.5-2A] FIG. 1 shows a side view of a head-wearable device with a facial interface.

[0443] [Figure 13.5-2B] FIG. 1 shows a front view of a head-wearable device with a facial interface.

[0444] [Figure 13.5-3] 1 shows a top view of a facial interface with sensors.

[0445] [Figure 13.5-4] 1 shows a top view of a facial interface with multiple sensors in various positions.

[0446] [Figure 13.5-5] 10 shows yet another top view of a facial interface with multiple sensors in various positions.

[0447] [Figure 13.5-6A] 1 shows a top view of a facial interface with various components including sensors.

[0448] [Figure 13.5-6B] 1 shows a top view of a facial interface with various components including sensors.

[0449] [Figure 13.5-7A] 1A and 1B show unexploded and exploded perspective views of a facial interface with sensors. [Figure 13.5-7B] 13.6: Integrated Health Sensors

[0450] [Figure 13.6-1] FIG. 1 shows a block diagram of a head-wearable device.

[0451] [Figure 13.6-2] 1 illustrates a top view of an exemplary head-wearable device.

[0452] [Figure 13.6-3] FIG. 1 illustrates a rear perspective view of an exemplary head-wearable device with a facial interface incorporating sensors.

[0453] [Figure 13.6-4] 1 shows a cross-sectional view of a facial interface with sensors placed at various locations.

[0454] [Figure 13.6-5] FIG. 1 shows a perspective view of a head-wearable device with sensors.

[0455] [Figure 13.6-6] 13.7: Health-sensing retention band.

[0456] [Figure 13.7-1] FIG. 1 shows a schematic block diagram of a head-wearable device.

[0457] [Figure 13.7-2] 1 shows a top view of a head-wearable device.

[0458] [Figure 13.7-3]1 shows a cross-sectional side view of a head-wearable device.

[0459] [Figure 13.7-4A] FIG. 10 shows a rear perspective view of the retaining band.

[0460] [Figure 13.7-4B] A side view of the retaining band of Figure 13.7-4A in an articulated position is shown.

[0461] [Figure 13.7-4C] A side view of the retaining band of Figure 13.7-4A in an articulated position is shown.

[0462] [Figure 13.7-5] FIG. 1 shows an exploded perspective view of a head-wearable device.

[0463] [Figure 13.7-6] 13.8: Conductive Fabric Architecture

[0464] [Figure 13.8-1A] FIG. 1 shows a schematic block diagram of a head-wearable device.

[0465] [Figure 13.8-1B] 1 shows a top view of a head-wearable device.

[0466] [Figure 13.8-2] FIG. 1 shows a bottom perspective view of the light seal.

[0467] [Figure 13.8-3] 1 shows a top view of a head-wearable device.

[0468] [Figure 13.8-4A] 1 shows a conductive fabric in a neutral state.

[0469] [Figure 13.8-4B]The conductive fabric in Figure 13.8-4A is shown in a compressed state.

[0470] [Figure 13.8-4C] The conductive fabric of Figure 13.8-4A is shown in a stretched state.

[0471] [Figure 13.8-5A] 1 shows the conductive components on the exterior of the cover.

[0472] [Figure 13.8-5B] 1 shows conductive components woven into the cover.

[0473] [Figure 13.8-5C] 1 shows the conductive components inside the cover.

[0474] [Figure 13.8-5D] 1 shows a free-floating conductive component.

[0475] [Figure 13.8-6] FIG. 1 shows a side perspective view of a light seal.

[0476] [Figure 13.8-7] 13.9: Facial interface with integrated health sensors.

[0477] [Figure 13.9-1] FIG. 1 shows a block diagram of a head-wearable device.

[0478] [Figure 13.9-2A] 1 shows a top view of a head-wearable device.

[0479] [Figure 13.9-2B] FIG. 1 shows a rear view of the facial interface of the head-wearable device.

[0480] [Figure 13.9-3]FIG. 1 shows a rear perspective view of a facial interface with sensors positioned near the nose region of a head-wearable device.

[0481] [Figure 13.9-4A] FIG. 1 shows an exploded perspective view of a pressure sensor assembly of a head-wearable device.

[0482] [Figure 13.9-4B] FIG. 1 shows an assembled perspective view of a pressure sensor assembly of a head-wearable device.

[0483] [Figure 13.9-5A] 1 shows sensors positioned on the forehead region of a facial interface of a head-wearable device.

[0484] [Figure 13.9-5B] 1 shows sensors positioned on the forehead region of a facial interface of a head-wearable device.

[0485] [Figure 13.9-6] 13.10: Touch-sensitive input surface.

[0486] [Figure 13.10-1A] FIG. 1 shows a schematic block diagram of a head-wearable device.

[0487] [Figure 13.10-1B] 1 shows a top view of a head-wearable device.

[0488] [Figure 13.10-2] FIG. 1 shows a bottom perspective view of the light seal.

[0489] [Figure 13.10-3A] FIG. 10 shows a top view of a head-wearable device with conductive fabric within the light seal of the head-wearable device.

[0490] [Figure 13.10-3B]FIG. 10 illustrates a top view of a head-wearable device with a user engaging a touch-sensitive surface of a light seal of the head-wearable device.

[0491] [Figure 13.10-4] 1 shows the touch-sensitive surface of an optical seal of a head-wearable device.

[0492] [Figure 13.10-5] 1 shows the touch-sensitive surface of an optical seal of a head-wearable device.

[0493] [Figure 13.10-6] 1 shows the touch-sensitive surface of an optical seal of a head-wearable device.

[0494] [Figure 13.10-7] 1 shows a head-wearable device with sensors integrated into the frame of the head-wearable device.

[0495] [Figure 13.10-8A] 1 shows a head-wearable device with sensors integrated into the frame of the head-wearable device.

[0496] [Figure 13.10-8B] FIG. 13.10-8A shows the head-wearable device of FIG. 13.11: Face-engaging structure, with the user mechanically biasing the frame of the head-wearable device.

[0497] [Figure 13.11-1] 1 illustrates a top view of an exemplary head-wearable device.

[0498] [Figure 13.11-2A] 1 illustrates a side view of an exemplary head-wearable device.

[0499] [Figure 13.11-2B] 1 illustrates a front view of an exemplary head-wearable device.

[0500] [Figure 13.11-3A] FIG. 1 shows a perspective view of a head-wearable device with a connector positioned in a forehead location.

[0501] [Figure 13.11-3B] Various connector types are shown. [Figure 13.11-3C] Various connector types are shown. [Figure 13.11-3D] Various connector types are shown. [Figure 13.11-3E] Various connector types are shown.

[0502] [Figure 13.11-4A] 1 shows a perspective view of a head-wearable device with connectors positioned at cheekbone locations;

[0503] [Figure 13.11-4B] Various connector types are shown. [Figure 13.11-4C] Various connector types are shown. [Figure 13.11-4D] Various connector types are shown. [Figure 13.11-4E] Various connector types are shown. [Figure 13.11-4F] Various connector types are shown. [Figure 13.11-4G] Various connector types are shown. [Figure 13.11-4H] Various connector types are shown.

[0504] [Figure 13.11-5A] FIG. 1 shows a perspective view of a head-wearable device with a facial interface.

[0505] [Figure 13.11-5B] 1 illustrates various facial interfaces. [Figure 13.11-5C] 1 illustrates various facial interfaces. [Figure 13.11-5D] 1 illustrates various facial interfaces. [Figure 13.11-5E] 1 illustrates various facial interfaces. [Figure 13.11-5F] 1 illustrates various facial interfaces. [Figure 13.11-5G] 1 illustrates various facial interfaces.

[0506] [Figure 13.11-6A] 10 shows another variation of the facial interface. [Figure 13.11-6B] 10 shows another variation of the facial interface.

[0507] [Figure 13.11-7A] 1 shows a perspective view of a display with a display frame.

[0508] [Figure 13.11-7B] 1 shows an exploded perspective view of a display with a display frame.

[0509] [Figure 13.11-8A] 1 shows a display frame with relief cutouts. [Figure 13.11-8B] 1 shows a display frame with relief cutouts.

[0510] [Figure 13.11-9A] 1 shows a head-worn device without relief cutouts.

[0511] [Figure 13.11-9B] 1 shows a head-wearable device with a relief cutout.

[0512] [Figure 13.11-10A] 1 shows a head-wearable device with relief cutouts in various locations. [Figure 13.11-10B] 1 shows a head-wearable device with relief cutouts in various locations.

[0513] [Figure 13.11-11A] 1 shows a display frame with relief cutouts. [Figure 13.11-11B] 1 shows a display frame with relief cutouts. [Figure 13.11-11C] 1 shows a display frame with relief cutouts.

[0514] [Figure 13.11-12] 1 shows a display frame with through holes.

[0515] [Figure 13.11-13] 1 shows a display frame with stiffeners.

[0516] [Figure 13.11-14A] FIG. 10 is a top view of a frame for a device seal with a reinforcement.

[0517] [Figure 13.11-14B] Figure 13.11-14A shows a cross section of the frame.

[0518] [Figure 13.11-14C] 13.11-14A is a bottom view of the frame.

[0519] [Figure 13.11-14D] 13. Top view of the frame of Fig. 11-14A.

[0520] [Figure 13.11-14] 1 illustrates a perspective view of an exemplary connector.

[0521] [Figure 13.11-15A] 1 illustrates a side view of an exemplary connector positioned between a display frame and a facial interface.

[0522] [Figure 13.11-15B] 1 illustrates an exemplary face interface.

[0523] [Figure 13.11-15C]13. An exemplary cross section of the facial interface shown in FIG. 13.11-15B is shown. [Figure 13.11-15D] 13. An exemplary cross section of the facial interface shown in FIG. 13.11-15B is shown.

[0524] [Figure 13.11-16] 1 illustrates a cross-sectional view of an exemplary connector comprising a connector frame and posts.

[0525] [Figure 13.11-17] 1 illustrates a top view of an exemplary connector.

[0526] [Figure 13.11-18] 1 illustrates a side perspective view of a base of an exemplary connector attached to an exemplary display frame.

[0527] [Figure 13.11-19] 1 illustrates another cross-sectional view of an exemplary connector. [Figure 13.11-20] 13.12 shows a perspective view and a top view, respectively, of an exemplary adhesive on an exemplary head wearable device 13.12: face engaging structure. [Figure 13.11-21] 13.12 shows a perspective view and a top view, respectively, of an exemplary adhesive on an exemplary head wearable device 13.12: face engaging structure.

[0528] [Figure 13.12-1] FIG. 1 shows a top view of a head-wearable device with a facial interface.

[0529] [Figure 13.12-2A] FIG. 1 shows a side view of a head-wearable device with a facial interface connected to a display.

[0530] [Figure 13.12-2B] FIG. 1 shows a top view of a head-wearable device with a facial interface connected to a display.

[0531] [Figure 13.12-3]FIG. 1 illustrates a perspective view of a head-wearable device with a facial interface and an exemplary connector.

[0532] [Figure 13.12-4A] FIG. 1 shows a perspective view of a head-wearable device with an exemplary connector between the display and the facial interface.

[0533] [Figure 13.12-4B] 1 illustrates a front view of an exemplary connector.

[0534] [Figure 13.12-4C] 1 illustrates a side view of an exemplary connector portion.

[0535] [Figure 13.12-5A] 1A-1C show diagrams of a connector in exemplary positions. [Figure 13.12-5B] 1A-1C show diagrams of a connector in exemplary positions.

[0536] [Figure 13.12-6A] FIG. 1 shows a perspective view of a head-wearable device with a facial interface and another exemplary connector.

[0537] [Figure 13.12-6B] 1 illustrates a top view of an exemplary connector.

[0538] [Figure 13.12-7A] 10A and 10B show side views of another connector in exemplary positions. [Figure 13.12-7B] 10A and 10B show side views of another connector in exemplary positions.

[0539] [Figure 13.12-8A] 1 shows a schematic diagram of an exemplary sliding connector. [Figure 13.12-8B] 1 shows a schematic diagram of an exemplary sliding connector.

[0540] [Figure 13.12-9A]1 illustrates a bottom view of another exemplary head-wearable device.

[0541] [Figure 13.12-9B] 1 illustrates various positions for the connector on a head-wearable device. [Figure 13.12-9C] 1 illustrates various positions for the connector on a head-wearable device. [Figure 13.12-9D] 1 illustrates various positions for the connector on a head-wearable device. [Figure 13.12-9E] 1 illustrates various positions for the connector on a head-wearable device. [Figure 13.12-9F] 1 illustrates various positions for the connector on a head-wearable device.

[0542] [Figure 13.12-10] 1 illustrates a cutaway view of an exemplary connector.

[0543] [Figure 13.12-11] 1 illustrates a perspective view of another exemplary connector.

[0544] [Figure 13.12-12] 13.13: Adjustment Mechanism

[0545] [Figure 13.13-1] 1 shows a top profile of a head-wearable device with a facial interface.

[0546] [Figure 13.13-2A] 1 shows a side profile of a head-wearable device with a facial interface.

[0547] [Figure 13.13-2B] 1 shows a top profile of a head-wearable device with a facial interface.

[0548] [Figure 13.13-3A] 10 illustrates exemplary locations of adjustment mechanisms for a head-wearable device. [Figure 13.13-3B] 10 illustrates exemplary locations of adjustment mechanisms for a head-wearable device. [Figure 13.13-3C] 10 illustrates exemplary locations of adjustment mechanisms for a head-wearable device. [Figure 13.13-3D] 10 illustrates exemplary locations of adjustment mechanisms for a head-wearable device.

[0549] [Figure 13.13-4A] 10 illustrates exemplary translatable positions of the adjustment mechanism. [Figure 13.13-4B] 10 illustrates exemplary translatable positions of the adjustment mechanism. [Figure 13.13-4C] 10 illustrates exemplary translatable positions of the adjustment mechanism.

[0550] [Figure 13.13-5A] 10 illustrates exemplary rotational positions of an adjustment mechanism for a head-wearable device. [Figure 13.13-5B] 10 illustrates exemplary rotational positions of an adjustment mechanism for a head-wearable device. [Figure 13.13-5C] 10 illustrates exemplary rotational positions of an adjustment mechanism for a head-wearable device.

[0551] [Figure 13.13-6A] 1 illustrates an exemplary adjustment mechanism. [Figure 13.13-6B] 1 illustrates an exemplary adjustment mechanism.

[0552] [Figure 13.13-7A] 1 illustrates an exemplary rotatable adjustment mechanism. [Figure 13.13-7B] 1 illustrates an exemplary rotatable adjustment mechanism.

[0553] [Figure 13.13-8] 10 illustrates another exemplary adjustment mechanism.

[0554] [Figure 13.13-9A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-9B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-10A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-10B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-11A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-11B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-12A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-12B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-13A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-13B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-14A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-14B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-15A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-15B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-16A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-16B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-17A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-17B]Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-18A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-18B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-19A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-19B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-20A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-20B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-21A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-21B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-22A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-22B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-23A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-23B] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-24A] Each shows an exemplary head-wearable device with actuator control. [Figure 13.13-24B] Each shows an exemplary head-wearable device with actuator control.

[0555] [Figure 13.13-25A]1 illustrates an exemplary head-wearable device with exemplary connections and corresponding actuator controls. [Figure 13.13-25B] 1 illustrates an exemplary head-wearable device with exemplary connections and corresponding actuator controls. [Figure 13.13-25C] 1 illustrates an exemplary head-wearable device with exemplary connections and corresponding actuator controls. [Figure 13.13-25D] 1 illustrates an exemplary head-wearable device with exemplary connections and corresponding actuator controls.

[0556] [Figure 13.13-26] 1 illustrates exemplary connections for a head-wearable device.

[0557] [Figure 13.13-27] 10 illustrates another exemplary connection for a head-wearable device.

[0558] [Figure 13.13-28] 1A-1C show top, front, and side views, respectively, of another exemplary head-wearable device. [Figure 13.13-29] 1A-1C show top, front, and side views, respectively, of another exemplary head-wearable device. [Figure 13.13-30] 1A-1C show top, front, and side views, respectively, of another exemplary head-wearable device.

[0559] [Figure 13.13-31] 1A-1C show a perspective view of a portion of a linear adjustment connection with a lock-slider disengaged, a front view of a lock-slider disengaged, and a front view of a lock-slider engaged, respectively. [Figure 13.13-32] 1A-1C show a perspective view of a portion of a linear adjustment connection with a lock-slider disengaged, a front view of a lock-slider disengaged, and a front view of a lock-slider engaged, respectively. [Figure 13.13-33] 1A-1C show a perspective view of a portion of a linear adjustment connection with a lock-slider disengaged, a front view of a lock-slider disengaged, and a front view of a lock-slider engaged, respectively.

[0560] [Figure 13.13-34] 13.14: Nosepiece, according to an exemplary embodiment, shows a perspective view of a portion of a head-wearable device having multiple linear adjustment connections.

[0561] [Figure 13.14-1] FIG. 1 is a diagram of an exemplary electronic device according to one embodiment.

[0562] [Figure 13.14-2] FIG. 1 is a front view of an exemplary electronic device having a light-blocking structure, according to one embodiment.

[0563] [Figure 13.14-3] 1A and 1B are diagrams of exemplary light blocking structures having fabric covers, according to one embodiment.

[0564] [Figure 13.14-4] FIG. 1 is a front view of an exemplary light blocking structure having a structural frame, according to one embodiment.

[0565] [Figure 13.14-5] FIG. 1 is a side view of an exemplary light blocking structure having a fabric and an elastomer layer, according to one embodiment.

[0566] [Figure 13.14-6] FIG. 1 is a front view of an exemplary light blocking structure having an extension, according to one embodiment.

[0567] [Figure 13.14-7] FIG. 1B is a side view of an exemplary light blocking structure with an embedded service loop, according to one embodiment.

[0568] [Figure 13.14-8] FIG. 1 is a side view of an exemplary light blocking structure having embedded deformable stiffeners, according to one embodiment.

[0569] [Figure 13.14-9A]FIG. 1B is a side view of an exemplary light blocking structure having rounded edges, according to one embodiment.

[0570] [Figure 13.14-9B] FIG. 1 is a side view of an exemplary light blocking structure with embedded foam, according to one embodiment.

[0571] [Figure 13.14-9C] FIG. 1B is a top view of an exemplary light blocking structure having a crumble zone, according to one embodiment.

[0572] [Figure 13.14-9D] FIG. 1B is a side view of an exemplary light blocking structure with hemmed edges, according to one embodiment.

[0573] [Figure 13.14-9E] FIG. 10 is a top view of a light blocking structure having foam in the cummer area, according to one embodiment.

[0574] [Figure 13.14-9F] FIG. 1 is a side view of an exemplary light blocking structure having segmented foam or elastomer regions, according to one embodiment.

[0575] [Figure 13.14-9G] FIG. 1 is a side view of an exemplary light blocking structure having a reinforcement material and a foam layer, according to one embodiment.

[0576] [Figure 13.14-10] 13.15: Detachable Facial Interface.

[0577] [Figure 13.15-1A] FIG. 1 is a schematic block diagram of an example head-wearable device.

[0578] [Figure 13.15-1B] FIG. 1 is a top view of an example of a head-wearable device.

[0579] [Figure 13.15-2A] FIG. 1 is a perspective view of an example of a device seal.

[0580] [Figure 13.15-2B] FIG. 1 is a perspective view of an example of a facial interface frame.

[0581] [Figure 13.15-2C] FIG. 1 is a perspective view of an example of a facial interface frame and a removable facial interface.

[0582] [Figure 13.15-2D] FIG. 10 is a cross-sectional view of an example facial interface shim.

[0583] [Figure 13.15-3A] FIG. 1 is a perspective view of an example of a device seal.

[0584] [Figure 13.15-3B] FIG. 1 is a plan view of an example of a detachable facial interface.

[0585] [Figure 13.15-4] FIG. 1 is a cross-sectional view of an example magnetic attachment mechanism.

[0586] [Figure 13.15-5A] FIG. 10 is a cross-sectional view of an example interlocking attachment mechanism.

[0587] [Figure 13.15-5B] FIG. 10 is a cross-sectional view of an example interlocking attachment mechanism.

[0588] [Figure 13.15-6] FIG. 1 is a cross-sectional view of an example magnetic slide mounting mechanism.

[0589] [Figure 13.15-7] FIG. 1 is a cross-sectional view of an example of a hook and loop attachment mechanism.

[0590] [Figure 13.15-8]FIG. 1 is a cross-sectional view of an example magnetic attachment mechanism.

[0591] [Figure 13.15-9] FIG. 10 is a cross-sectional view of an example of a spring snap attachment mechanism.

[0592] [Figure 13.15-10] FIG. 10 is a cross-sectional view of an example interlocking attachment mechanism.

[0593] [Figure 13.15-11] FIG. 10 is a cross-sectional view of an example of a suction attachment mechanism.

[0594] [Figure 13.15-12] FIG. 10 is a cross-sectional view of an example of a bistable mounting mechanism.

[0595] [Figure 13.15-13A] FIG. 1 is a plan view of an example of a detachable facial interface.

[0596] [Figure 13.15-13B] FIG. 1 is a plan view of an example of a detachable facial interface.

[0597] [Figure 13.15-14] FIG. 1 is a cross-sectional view of an exemplary facial interface.

[0598] [Figure 13.15-15A] FIG. 10 is a cross-sectional view of a compressible portion.

[0599] [Figure 13.15-15B] FIG. 10 is a cross-sectional view of a compressible portion.

[0600] [Figure 13.15-15C] 13.16: Electronic device having a light-shielding structure.

[0601] [Figure 13.16-1] FIG. 1 is a diagram of an exemplary electronic device according to one embodiment.

[0602] [Figure 13.16-2] FIG. 1 is a front view of an exemplary electronic device having a light-blocking structure, according to one embodiment.

[0603] [Figure 13.16-3] 1A and 1B are diagrams of exemplary light blocking structures having fabric covers, according to one embodiment.

[0604] [Figure 13.16-4A] FIG. 1 is a front view of an exemplary elastomeric layer that may be used in a nosepiece, according to some embodiments. [Figure 13.16-4B] FIG. 1 is a front view of an exemplary elastomeric layer that may be used in a nosepiece, according to some embodiments.

[0605] [Figure 13.16-5] FIG. 1 is a front view of an exemplary light blocking structure having a structural frame, according to one embodiment.

[0606] [Figure 13.16-6] FIG. 1 is a side view of an exemplary light blocking structure having a fabric and an elastomer layer, according to one embodiment.

[0607] [Figure 13.16-7] FIG. 1 is a front view of an exemplary light blocking structure having an extension according to one embodiment.

[0608] [Figure 13.16-8] FIG. 1B is a side view of an exemplary light blocking structure with an embedded service loop, according to one embodiment.

[0609] [Figure 13.16-9] FIG. 1 is a side view of an exemplary light blocking structure having embedded deformable stiffeners, according to one embodiment.

[0610] [Figure 13.16-10A] FIG. 1B is a side view of an exemplary light blocking structure having rounded edges according to one embodiment.

[0611] [Figure 13.16-10B] FIG. 1 is a side view of an exemplary light blocking structure with embedded foam, according to one embodiment.

[0612] [Figure 13.16-10C] FIG. 1B is a top view of an exemplary light blocking structure having a crumble zone, according to one embodiment.

[0613] [Figure 13.16-10D] FIG. 1B is a side view of an exemplary light blocking structure with hemmed edges, according to one embodiment.

[0614] [Figure 13.16-10E] FIG. 1B is a top view of an exemplary light blocking structure having foam in corner regions, according to one embodiment.

[0615] [Figure 13.16-10F] FIG. 1 is a side view of an exemplary light blocking structure having segmented foam or elastomer regions, according to one embodiment.

[0616] [Figure 13.16-10G] FIG. 1 is a side view of an exemplary light blocking structure having a reinforcement material and a foam layer, according to one embodiment.

[0617] [Figure 13.16-11] FIG. 1 illustrates a front view of an exemplary light blocking structure having a semi-rigid stiffener, according to one embodiment.

[0618] [Figure 13.16-12] 14 is a perspective view of an exemplary light blocking structure formed from multiple fabric layers, according to one embodiment.

[0619] [Figure 14.0-1] The diagram of the HMD is shown in Figure 14.1: Electrical connectors

[0620] [Figure 14.1-1A] 1 shows a perspective side view of an electronic device.

[0621] [Figure 14.1-1B] 14.1-1A shows a perspective view of the electronic device.

[0622] [Figure 14.1-2] 1 shows a perspective view of a display, a support and a plug connector.

[0623] [Figure 14.1-3A] FIG. 2 shows a perspective view of a receptacle connector.

[0624] [Figure 14.1-3B] FIG.

[0625] [Figure 14.1-4] An exploded view of the receptacle connector is shown.

[0626] [Figure 14.1-5A] A front view of the receptacle connector is shown.

[0627] [Figure 14.1-5B] Figure 14.1-5A shows a partially cutaway front view of the receptacle connector.

[0628] [Figure 14.1-6A] FIG. 2 shows a side cross-sectional view of the receptacle connector.

[0629] [Figure 14.1-6B] FIG. 2 shows a side cross-sectional view of the receptacle connector.

[0630] [Figure 14.1-7A] FIG. 2 shows a detailed perspective view of the receptacle connector.

[0631] [Figure 14.1-7B] FIG. 2 shows a detailed perspective view of the plug connector.

[0632] [Figure 14.1-8A]1 shows a cross-sectional view of a plug connector inserted into a receptacle connector.

[0633] [Figure 14.1-8B] Figure 14.1-8A shows a detailed cross-sectional view of a plug connector inserted into a receptacle connector.

[0634] [Figure 14.1-9A] 1 shows a detailed cross-sectional view of a plug connector inserted into a receptacle connector.

[0635] [Figure 14.1-9B] Figure 14.1-9A shows a detailed cross-sectional view of a plug connector inserted into a receptacle connector.

[0636] [Figure 14.1-9C] 1 shows a detailed cross-sectional view of a plug connector inserted into a receptacle connector.

[0637] [Figure 14.1-9D] Figure 14.1-9C shows a detailed cross-sectional view of the plug connector inserted into the receptacle connector.

[0638] [Figure 14.1-9E] 1 shows a detailed cross-sectional view of a plug connector inserted into a receptacle connector.

[0639] [Figure 14.1-9F] Figure 14.1-9E shows a detailed cross-sectional view of the plug connector inserted into the receptacle connector.

[0640] [Figure 14.1-10] 1 shows a cross-sectional view of a tool for ejecting a plug connector from a receptacle connector.

[0641] [Figure 14.1-11A] 1 shows a perspective view of a tool for ejecting a plug connector from a receptacle connector. [Figure 14.1-11B]1 shows a perspective view of a tool for ejecting a plug connector from a receptacle connector. [Figure 14.1-11C] 1 shows a perspective view of a tool for ejecting a plug connector from a receptacle connector. [Figure 14.1-11D] 1 shows a perspective view of a tool for ejecting a plug connector from a receptacle connector.

[0642] [Figure 14.1-12A] A front view of the receptacle connector is shown.

[0643] [Figure 14.1-12B] A front view of the plug connector is shown.

[0644] [Figure 14.1-13A] A cross-sectional view of a receptacle connector is shown.

[0645] [Figure 14.1-13B] Figure 14.1-13A shows a detailed cross-sectional view of the receptacle connector seal. [Figure 14.1-13C] Figure 14.1-13A shows a detailed cross-sectional view of the receptacle connector seal. [Figure 14.1-13D] Figure 14.1-13A shows a detailed cross-sectional view of the receptacle connector seal.

[0646] [Figure 14.1-14A] FIG. 2 shows a perspective view of a receptacle connector.

[0647] [Figure 14.1-14B] Figure 14.1-14A shows a detailed cross-sectional view of the fastener of the receptacle connector.

[0648] [Figure 14.1-15] 1 shows a perspective view of a receptacle connector, a plug connector, and a housing.

[0649] [Figure 14.1-16A]1A and 1B show cross-sectional side views of a receptacle connector and a plug connector.

[0650] [Figure 14.1-16B] Figure 14.1-16A shows a side view of the plug connector.

[0651] [Figure 14.1-17A] A side view of the plug connector is shown.

[0652] [Figure 14.1-17B] Figure 14.1-17A shows a bottom view of the plug connector.

[0653] [Figure 14.1-18A] FIG. 2 shows a perspective view of a receptacle connector.

[0654] [Figure 14.1-18B] Figure 14.1-18A shows a top view of the receptacle connector.

[0655] [Figure 14.1-18C] Figure 14.1-18A shows a side cross-sectional view of the receptacle connector.

[0656] [Figure 14.1-18D] Figure 14.1-18A shows a side cross-sectional view of the receptacle connector and plug connector.

[0657] [Figure 14.1-18E] A side cross-sectional view of the receptacle connector in Figure 14.1-18A and the plug connector in Figure 14.1-18D is shown.

[0658] [Figure 14.1-19A] FIG. 1 shows a detailed top view of the receptacle connector.

[0659] [Figure 14.1-19B] Figure 14.1-19A shows a perspective view of the detent of the receptacle connector.

[0660] [Figure 14.1-19C] Figure 14.1-19B shows a cross section of the detent and plug connector.

[0661] [Figure 14.1-19D] FIG. 1 shows a detailed top view of the receptacle connector.

[0662] [Figure 14.1-19E] Figure 14.1-19D shows a perspective view of the receptacle connector detent.

[0663] [Figure 14.1-19F] Figure 14.1-19E shows a cross section of the detent and plug connector.

[0664] [Figure 14.1-19G] FIG. 1 shows a detailed top view of the receptacle connector.

[0665] [Figure 14.1-19H] Figure 14.1-19G shows a perspective view of the receptacle connector detent.

[0666] [Figure 14.1-19I] FIG. 1 shows a detailed top view of the receptacle connector.

[0667] [Figure 14.1-19J] Figure 14.1-19I shows a perspective view of the detent of the receptacle connector.

[0668] [Figure 14.1-19K] Figure 14.1-19J shows a cross section of the detent and plug connector.

[0669] [Figure 14.1-19L] FIG. 1 shows a detailed top view of the receptacle connector.

[0670] [Figure 14.1-19M] Figure 14.1-19L shows a perspective view of the receptacle connector detent.

[0671] [Figure 14.1-20A] 1A and 1B show bottom views of the receptacle connector and the plug connector.

[0672] [Figure 14.1-20B] 1A and 1B show bottom views of the receptacle connector and the plug connector.

[0673] [Figure 14.1-21A] 1A and 1B show bottom views of the receptacle connector and the plug connector.

[0674] [Figure 14.1-21B] 1A and 1B show bottom views of the receptacle connector and the plug connector.

[0675] [Figure 14.1-22A] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-22B] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-22C] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-22D] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-22E] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector.

[0676] [Figure 14.1-23A] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-23B] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-23C] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-23D] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-23E] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-23F] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector. [Figure 14.1-23G] 1 shows a cross-sectional side view of a receptacle connector, a plug connector, and a seal between the receptacle connector and the plug connector.

[0677] [Figure 14.1-24A] An exploded view of the receptacle connector is shown. [Figure 14.1-24B] An exploded view of the receptacle connector is shown.

[0678] [Figure 14.1-25A] An exploded view of the receptacle connector is shown. [Figure 14.1-25B] An exploded view of the receptacle connector is shown.

[0679] [Figure 14.1-26A] 1 shows a perspective view of an electronic device.

[0680] [Figure 14.1-26B] Figure 14.1-26A shows a perspective view of the electronic device and plug connector.

[0681] [Figure 14.1-27A] 1 shows a perspective view of a plug connector inserted into an electronic device.

[0682] [Figure 14.1-27B]Figure 14.1-27A shows a partial exploded view of the plug connector, trim ring, and receptacle connector.

[0683] [Figure 14.1-28A] 1 shows a cross-sectional view of a trim ring and a plug connector being inserted into a receptacle connector.

[0684] [Figure 14.1-28B] Figure 14.1-28A shows a detailed cross-sectional view of the plug connector and trim ring latch.

[0685] [Figure 14.1-28C] Figure 14.1-28A shows a cross-sectional view of the trim ring and plug connector being inserted into the receptacle connector.

[0686] [Figure 14.1-28D] Figure 14.1-28A shows a cross-sectional view of the trim ring and plug connector inserted into the receptacle connector.

[0687] [Figure 14.1-28E] Figure 14.1-28A shows a cross-sectional view of the trim ring and plug connector being unlatched from the receptacle connector.

[0688] [Figure 14.1-28F] Fig. 14.1-28A shows a perspective view of the lever arm of the trim ring.

[0689] [Figure 14.1-29A] 1 shows a cross-sectional view of a plug connector and a receptacle connector within a trim ring.

[0690] [Figure 14.1-29B] Figure 14.1-29A shows a cross-sectional view of the trim ring and tool used to unlatch the plug connector from the receptacle connector.

[0691] [Figure 14.1-29C]Figure 14.1-29A shows a perspective view of the plug connector and trim ring.

[0692] [Figure 14.1-29D] Figure 14.1-29A shows a cross section of the trim ring.

[0693] [Figure 14.1-29E] Fig. 14.1-29A shows a perspective view of the lever arm of the trim ring.

[0694] [Figure 14.1-30A] FIG. 2 is a perspective view of a plug connector and a trim ring.

[0695] [Figure 14.1-30B] Figure 14.1-30A shows a cross-sectional view of the plug connector and receptacle connector inserted into the trim ring.

[0696] [Figure 14.1-30C] Figure 14.1-30B shows a cross-sectional view of the trim ring and plug connector inserted into the receptacle connector.

[0697] [Figure 14.1-31A] 1 shows a cross-sectional view of a trim ring and a plug connector being inserted into a receptacle connector.

[0698] [Figure 14.1-31B] Figure 14.1-31A shows a cross-sectional view of the plug connector being unlatched from the trim ring and receptacle connector.

[0699] [Figure 14.1-32A] 1 shows a perspective view of the trim ring and receptacle connector assembled within the housing. [Figure 14.1-32B] 1 shows a perspective view of the trim ring and receptacle connector assembled within the housing. [Figure 14.1-32C]1 shows a perspective view of the trim ring and receptacle connector assembled within the housing.

[0700] [Figure 14.1-33A] 1 shows a top view of the trim ring and the plug connector being inserted into the receptacle connector.

[0701] [Figure 14.1-33B] Figure 14.1-33A shows a detailed view of the trim ring and plug connector before the trim ring latches with the receptacle connector.

[0702] [Figure 14.1-33C] A top view of the plug connector latched to the trim ring and the receptacle connector of Figure 14.1-33A is shown.

[0703] [Figure 14.1-33D] Figure 14.1-33C shows a detailed view of the trim ring and plug connector, with the plug connector latched into the trim ring.

[0704] [Figure 14.1-33E] Figure 14.1-33A shows a top view of the plug connector being unlatched from the trim ring and receptacle connector.

[0705] [Figure 14.1-33F] Figure 14.1-33E shows a detailed view of the trim ring and plug connector with the plug connector unlatched from the trim ring.

[0706] [Figure 14.1-34A] 1 shows a perspective view of a trim ring and a plug connector inserted into a receptacle connector. [Figure 14.1-34B] 1 shows a perspective view of a trim ring and a plug connector inserted into a receptacle connector.

[0707] [Figure 14.1-35A]An exploded view of the receptacle connector is shown.

[0708] [Figure 14.1-35B] Figure 14.1-35A shows a side cross-sectional view of the receptacle connector.

[0709] [Figure 14.1-36A] 1A and 1B show a semi-transparent view and a three-dimensional view of an electrical connector portion, respectively. [Figure 14.1-36B] 1A and 1B show a semi-transparent view and a three-dimensional view of an electrical connector portion, respectively.

[0710] [Figure 14.1-37] 1A and 1B show top and bottom views, respectively, of the electrical connector portion. [Figure 14.1-38] 1A and 1B show top and bottom views, respectively, of the electrical connector portion.

[0711] [Figure 14.1-39] 5 illustrates exemplary method steps for manufacturing an electrical connector portion.

[0712] [Figure 14.1-40] 1 illustrates exemplary method steps for providing an interface connector to an electrical connector portion.

[0713] [Figure 14.1-41A] 10A and 10B show side schematic views of assembling the interface connector to the electrical connector portion. [Figure 14.1-41B] 14.2: Modular Components for Wearable Electronic Devices

[0714] [Figure 14.2-1A] 1 shows a wearable electronic device being worn by a user.

[0715] [Figure 14.2-1B] Figure 14.2-1A shows a top view of the wearable electronic device.

[0716] [Figure 14.2-1C] Figure 14.2-1A shows an exploded view of a wearable electronic device.

[0717] [Figure 14.2-2A] 1 shows an exploded view of a wearable electronic device.

[0718] [Figure 14.2-2B] Figure 14.2-2A shows a side view of the components of a wearable electronic device.

[0719] [Figure 14.2-2C] Figure 14.2-2A shows a side view of the components of a wearable electronic device.

[0720] [Figure 14.2-2D] Figure 14.2-2C shows a cross-sectional view of the component.

[0721] [Figure 14.2-3] FIG. 1 shows a side view of components of a wearable electronic device.

[0722] [Figure 14.2-4] FIG. 1 shows a side view of components of a wearable electronic device.

[0723] [Figure 14.2-5A] 1 shows a top view of components of a wearable electronic device.

[0724] [Figure 14.2-5B] Figure 14.2-5A shows a side view of the components.

[0725] [Figure 14.2-5C] Figure 14.2-5A shows a cross-sectional view of the component.

[0726] [Figure 14.2-6A] 1 shows a top view of components of a wearable electronic device.

[0727] [Figure 14.2-6B] A side view of the components is shown in Figure 14.2-6A.

[0728] [Figure 14.2-6C] A cross-sectional view of the component shown in Figure 14.2-6A is shown.

[0729] [Figure 14.2-7A] 1 shows a top view of components of a wearable electronic device.

[0730] [Figure 14.2-7B] A side view of the components in Figure 14.2-7A is shown.

[0731] [Figure 14.2-7C] A cross-sectional view of the component shown in Figure 14.2-7A is shown.

[0732] [Figure 14.2-8A] 1 shows a top view of components of a wearable electronic device.

[0733] [Figure 14.2-8B] A side view of the components is shown in Figure 14.2-8A.

[0734] [Figure 14.2-8C] A cross-sectional view of the component shown in Figure 14.2-8A is shown.

[0735] [Figure 14.2-9A] 1 shows a top view of components of a wearable electronic device.

[0736] [Figure 14.2-9B] Figure 14.2-9A shows a side view of the components.

[0737] [Figure 14.2-9C] Figure 14.2-9A shows a cross-sectional view of the component.

[0738] [Figure 14.2-10A] 1 shows a top view of components of a wearable electronic device.

[0739] [Figure 14.2-10B] Figure 14.2-10A shows a side view of the components.

[0740] [Figure 14.2-10C] Figure 14.2-10A shows a cross-sectional view of the component.

[0741] [Figure 14.2-11] 1 shows an exploded perspective view of a wearable electronic device.

[0742] [Figure 14.2-12] 1 shows an exploded perspective view of a wearable electronic device.

[0743] [Figure 14.2-13] 14.3: Modular strap for electronic device.

[0744] [Figure 14.3-1] 1 illustrates a top view of an example of an electronic device worn by a user.

[0745] [Figure 14.3-2] 1 illustrates a perspective view of an example of an electronic device.

[0746] [Figure 14.3-3] 1 shows an exploded perspective view of an example of an electronic device.

[0747] [Figure 14.3-4] 1 illustrates a side profile view of an exemplary detachable strap of an HMD system.

[0748] [Figure 14.3-5] 1 illustrates a top cross-sectional profile view of an exemplary electronics pod.

[0749] [Figure 14.3-6] 1 illustrates a top view of another example of an electronic device worn by a user.

[0750] [Figure 14.3-7] 1 illustrates an exemplary cable management mechanism for an exemplary HMD system. [Figure 14.3-8] 14.4: Device with Detachable Headband Figure 14.4 illustrates an exemplary cable management mechanism for an exemplary HMD system.

[0751] [Figure 14.4-1] FIG. 1 is a side view of an electronic device having a detachable headband.

[0752] [Figure 14.4-2] FIG. 10 is a diagram of a removable headband.

[0753] [Figure 14.4-3] FIG. 10 is a side cross-sectional view of a portion of a removable headband.

[0754] [Figure 14.4-4] FIG.

[0755] [Figure 14.4-5] FIG. 10 is a diagram of a removable headband having a latch with a release tab.

[0756] [Figure 14.4-6] FIG. 10 is a side cross-sectional view of a removable headband with a release tab.

[0757] [Figure 14.4-7] FIG. 10 is a top view of the magnet configuration.

[0758] [Figure 14.4-8] FIG. 10 illustrates a latch biasing mechanism. [Figure 14.4-9] FIG. 10 illustrates a latch biasing mechanism. [Figure 14.4-10] FIG. 10 illustrates a latch biasing mechanism.

[0759] [Figure 14.4-11]FIG. 10 is a side cross-sectional view of a latch biasing mechanism.

[0760] [Figure 14.4-12] FIG. 1 is a side cross-sectional view of a removable headband. [Figure 14.4-13] FIG. 1 is a side cross-sectional view of a removable headband.

[0761] [Figure 14.4-14] FIG. 1 is a perspective view of a removable headband having recesses.

[0762] [Figure 14.4-15] FIG. 10 is a top view of the headband mounting post.

[0763] [Figure 14.4-16] FIG. 10 is a side cross-sectional view of a headband mounting post.

[0764] [Figure 14.4-17] 14.5: Cable tension adjustment system and dial.

[0765] [Figure 14.5-1] FIG. 1 is a side view of an example of an exemplary head-wearable display device having an adjustable headband.

[0766] [Figure 14.5-2] FIG. 1 is a plan view of an example of an adjustable headband.

[0767] [Figure 14.5-3] FIG. 1 is a perspective view of an example tension adjustment system for an adjustable headband.

[0768] [Figure 14.5-4] FIG. 1 is a partially exploded view of an example tension adjustment system for an adjustable headband.

[0769] [Figure 14.5-5] FIG. 10 is a partial cross-sectional view of an example tension adjustment system for an adjustable headband.

[0770] [Figure 14.5-6] FIG. 10 is a partially exploded view of an example dial cap for a tension adjustment system.

[0771] [Figure 14.5-7A] FIG. 1 is a partial cross-sectional view of an example of a disk-type angular restraint system. [Figure 14.5-7B] FIG. 1 is a partial cross-sectional view of an example of a disk-type angular restraint system.

[0772] [Figure 14.5-8] FIG. 10 is a partial cross-sectional view of an example dial cap with a spring detent mechanism.

[0773] [Figure 14.5-9A] FIG. 1 is a perspective view of an example of an angular constraint system. [Figure 14.5-9B] FIG. 1 is a perspective view of an example of an angular constraint system. [Figure 14.5-9C] 14.6: A perspective view of an example of an angle constraint system.

[0774] [Figure 14.6-1A] 1 shows a side view of an electronic device.

[0775] [Figure 14.6-1B] 1 shows a perspective view of an electronic device.

[0776] [Figure 14.6-1C] 1 shows a perspective view of an electronic device.

[0777] [Figure 14.6-1D] 1 shows a perspective view of an electronic device.

[0778] [Figure 14.6-2] 1 shows a cross-sectional side view of a speaker assembly.

[0779] [Figure 14.6-3A] FIG. 1 shows a perspective view of a speaker assembly.

[0780] [Figure 14.6-3B] 1 shows a cross-sectional side view of a speaker assembly.

[0781] [Figure 14.6-3C] FIG. 1 shows a cross-sectional perspective view of a speaker assembly.

[0782] [Figure 14.6-3D] FIG. 2 shows a top perspective view of the speaker assembly.

[0783] [Figure 14.6-3E] FIG. 2 shows a bottom perspective view of the speaker assembly.

[0784] [Figure 14.6-4] The perspective exploded view of the port barrier is shown. 14.7: Branch band

[0785] [Figure 14.7-1] FIG. 1 is a side view of an exemplary electronic device, such as a head-mounted display device, having an adjustable headband, in accordance with some embodiments.

[0786] [Figure 14.7-2A] 1A-1D are side views of opposing sides of an exemplary headband according to some embodiments. [Figure 14.7-2B] 1A-1D are side views of opposing sides of an exemplary headband according to some embodiments.

[0787] [Figure 14.7-3] 10A-10C are illustrative front views of an edge of a headband according to some embodiments.

[0788] [Figure 14.7-4] FIG. 10 is a side view of an exemplary headband with seams not visible to the naked eye, according to some embodiments.

[0789] [Figure 14.7-5] 1A and 1B are side views of an exemplary headband having reinforcement on a surface of the headband according to some embodiments.

[0790] [Figure 14.7-6A] 10A-10C are side views of exemplary stiffeners that may be incorporated onto the surface of a headband according to some embodiments. [Figure 14.7-6B] 10A-10C are side views of exemplary stiffeners that may be incorporated onto the surface of a headband according to some embodiments. [Figure 14.7-6C] 10A-10C are side views of exemplary stiffeners that may be incorporated onto the surface of a headband according to some embodiments.

[0791] [Figure 14.7-7] FIG. 10 is a side view of an exemplary headband having embedded reinforcement, according to some embodiments.

[0792] [Figure 14.7-8] 10A-10C are perspective views of exemplary reinforcements within channels of a headband according to some embodiments.

[0793] [Figure 14.7-9A] FIG. 10 is a side view of an exemplary headband with localized reinforcements that change the curvature of the headband when under tension, according to some embodiments. [Figure 14.7-9B] 14.8: Top of head strap;

[0794] [Figure 14.8-1] FIG. 1 is a side view of an exemplary electronic device, such as a head-mounted display device, having a detachable headband, in accordance with some embodiments.

[0795] [Figure 14.8-2]FIG. 10 is a perspective view of an exemplary headband having posts that couple to posts on a head mounting structure, according to some embodiments.

[0796] [Figure 14.8-3] FIG. 10 is a cross-sectional side view of an exemplary headband having a post that couples to a post on a head mounting structure, according to some embodiments.

[0797] [Figure 14.8-4] 1 is a side cross-sectional view of an exemplary removable headband having a release tab according to some embodiments.

[0798] [Figure 14.8-5] FIG. 1 is a perspective view of an exemplary headband having magnets that couple to posts on a head-mounting structure, according to some embodiments.

[0799] [Figure 14.8-6] FIG. 10 is a side cross-sectional view of an exemplary headband having magnets coupled to posts on a head mounting structure, according to some embodiments.

[0800] [Figure 14.8-7] 10A is a side cross-sectional view of an exemplary headband having magnets and protrusions that couple to posts with recesses on a head mounting structure, according to some embodiments. FIG.

[0801] [Figure 14.8-8] FIG. 1 is a perspective view of an exemplary headband having a portion that wraps around a head-mounted support structure for attachment to the support structure, according to some embodiments.

[0802] [Figure 14.8-9] FIG. 1 is a perspective view of an exemplary headband attached to a head-mounted support structure using a lug and socket system, according to some embodiments.

[0803] [Figure 14.8-10]10A-10C are side cross-sectional views of two exemplary headbands attached to a head-mounted support structure using latches, according to some embodiments.

[0804] [Figure 14.8-11] FIG. 10 is a side cross-sectional view of two exemplary headbands, one of which is attached to the head mount support structure using a latch and one of which is attached to the head mount support structure using a protrusion, according to some embodiments.

[0805] [Figure 14.8-12] 1A-1C illustrate an exemplary headband attached to a head-mounted support structure using a twist-lock system, according to some embodiments.

[0806] [Figure 14.8-13] FIG. 10 is a perspective view of an exemplary headband having openings surrounding posts of a head-mounted support structure according to some embodiments.

[0807] [Figure 14.8-14] FIG. 10 is a cross-sectional side view of an exemplary headband having openings surrounding posts of a head-mounted support structure according to some embodiments.

[0808] [Figure 14.8-15A] FIG. 1 is a perspective view of an exemplary post with an extendable magnet, according to some embodiments. [Figure 14.8-15B] FIG. 1 is a perspective view of an exemplary post with an extendable magnet, according to some embodiments.

[0809] [Figure 14.8-16] FIG. 10 is a perspective view of an exemplary headband with openings for receiving magnets and coupling to a head-mounted support structure according to some embodiments.

[0810] [Figure 14.8-17A]FIG. 10 is a side cross-sectional view of an exemplary headband engaging an extendable magnet on a post, according to some embodiments. [Figure 14.8-17B] XV: User Interface

[0811] [Figure 15-1] 1 illustrates an exemplary user interface displayed by a display module of an HMD.

[0812] [Figure 15-2A] 1 illustrates an exemplary user interface displayed by a display module of an HMD.

[0813] [Figure 15-2B] 1 illustrates an exemplary user interface displayed by a display module of an HMD.

[0814] [Figure 15-3A] 1 illustrates an example of a user interface of a display module of an electronic device.

[0815] [Figure 15-3B] 1 illustrates an example of a user interface of a display module of an electronic device.

[0816] [Figure 15-4A] 1 illustrates an example of a user interacting with the user interfaces of two display modules of an electronic device.

[0817] [Figure 15-4B] 1 illustrates an example of a user interacting with the user interfaces of two display modules of an electronic device.

[0818] [Figure 15-5A] 1 illustrates an exemplary user interface displayed by a display module of an HMD.

[0819] [Figure 15-5B] 1 illustrates an exemplary user interface displayed by a display module of an HMD.

[0820] [Figure 15-5C] 1 illustrates an exemplary user interface displayed by a display module of an HMD.

[0821] [Figure 15-6A] 1 illustrates an exemplary user interface displayed by a display module of an HMD.

[0822] [Figure 15-6B] 1 illustrates an exemplary user interface displayed by a display module of an HMD. DETAILED DESCRIPTION OF THE INVENTION

[0823] I: System-wide FIG. 1-1A illustrates a front, top, and perspective view of an example head-wearable display (HMD) device 1-100 configured to be worn by a user and provide virtual and altered / mixed reality (VR / AR) experiences. The HMD 1-100 may include a display unit 1-102 or assembly, an electronic strap assembly 1-104 connected to and extending from the display unit 1-102, and a band assembly 1-106 secured at either end to the electronic strap assembly 1-104. The electronic strap assembly 1-104 and band 1-106 may be part of a retention assembly configured to wrap around a user's head to hold the display unit 1-102 against the user's face.

[0824] In at least one example, the band assembly 1-106 can include a first band 1-116 configured to wrap around the back of the user's head and a second band 1-117 configured to extend over the top of the user's head. The second strap can extend between the first electronic strap 1-105a and the second electronic strap 1-105b of the electronic strap assembly 1-104, as shown. The strap assembly 1-104 and the band assembly 1-106 can be part of a fastening mechanism that extends rearward from the display unit 1-102 and is configured to hold the display unit 1-102 against the user's face.

[0825] In at least one example, the anchoring mechanism includes a first electronics strap 1-105a including a first proximal end 1-134 coupled to the display unit 1-102, e.g., a housing 1-150 of the display unit 1-102, and a first distal end 1-136 opposite the first proximal end 1-134. The anchoring mechanism can also include a second electronics strap 1-105b including a second proximal end 1-138 coupled to the housing 1-150 of the display unit 1-102, and a second distal end 1-140 opposite the second proximal end 1-138. The anchoring mechanism can also include a first band 1-116 including a first end 1-142 coupled to the first distal end 1-136 and a second end 1-144 coupled to the second distal end 1-140, and a second band 1-117 extending between the first electronic strap 1-105a and the second electronic strap 1-105b. The straps 1-105a-b and the band 1-116 can be coupled via a connection mechanism or assembly 1-114. In at least one example, the second band 1-117 includes a first end 1-146 coupled to the first electronic strap 1-105a between a first proximal end 1-134 and a first distal end 1-136, and a second end 1-148 coupled to the second electronic strap 1-105b between a second proximal end 1-138 and a second distal end 1-140.

[0826] In at least one example, the first and second electronic straps 1-105a-b include plastic, metal, or other structural material that forms the shape of the substantially rigid straps 1-105a-b. In at least one example, the first and second bands 1-116, 1-117 are formed from a resilient, flexible material including woven fabric, rubber, etc. The first and second bands 1-116, 1-117 can be flexible to conform to the shape of a user's head when wearing the HMD 1-100.

[0827] In at least one example, one or more of the first and second electronic straps 1-105a-b can define an internal strap volume and can include one or more electronic components disposed within the internal strap volume. In one example, as shown in FIG. 1-1A, the first electronic strap 1-105a can include an electronic component 1-112. In one example, the electronic component 1-112 can include a speaker. In one example, the electronic component 1-112 can include a computing component such as a processor.

[0828] In at least one example, the housing 1-150 defines a first, forward-facing opening 1-152. The front display assembly 1-108 is disposed to block the first opening 1-152 from view when the HMD 1-100 is assembled, and therefore the front-facing opening is labeled 1-152 with a dotted line in FIG. 1-1A . The housing 1-150 may also define a rear-facing second opening 1-154. The housing 1-150 also defines an interior volume between the first opening 1-152 and the second opening 1-154. In at least one example, the HMD 1-100 includes a display assembly 1-108, which may include a front cover and a display screen (shown in other figures) disposed within or across the front opening 1-152 to block the front opening 1-152. In at least one example, the display screen of the display assembly 1-108, as well as the entire display assembly 1-108, has a curvature configured to follow the curvature of the user's face. The display screen of the display assembly 1-108 can curve to complement the user's facial features and the overall curvature from one side of the face to the other, e.g., from left to right and / or top to bottom when the display unit 1-102 is pressed, as shown.

[0829] In at least one example, the housing 1-150 can define a first aperture 1-126 between the first opening 1-152 and the second opening 1-154, and a second aperture 1-130 between the first opening 1-152 and the second opening 1-154. The HMD 1-100 can also include a first button 1-128 disposed in the first aperture 1-126 and a second button 1-132 disposed in the second aperture 1-130. The first button and the second button 1-128, 1-132 can be depressible through the respective apertures 1-126, 1-132. In at least one example, the first button 1-126 and / or the second button 1-130 can be a twistable dial and a depressible button. In at least one example, the first button 1-126 is a depressible and twistable dial button, and the second button 1-132 is a depressible button.

[0830] FIG. 1-1B shows a rear perspective view of the HMD 1-100. The HMD 1-100 can include a light seal 1-110 extending rearward from a housing 1-150 of the display assembly 1-108 around the periphery of the housing 1-150, as shown. The light seal 1-110 can be configured to extend from the housing 1-150 to the user's face around the user's eyes to block external light from being seen. In one example, the HMD 1-100 can include first and second display assemblies 1-120a, 1-120b disposed at or within a rearward-facing second opening 1-154 defined by the housing 1-150 and / or disposed within an interior volume of the housing 1-150 and configured to project light through the second opening 1-154. In at least one example, each display assembly 1-120a-b can include a respective display screen 1-122a, 1-122b configured to project light in a rearward direction through the second opening 1-154 toward the user's eyes.

[0831] In at least one example, with reference to both FIGS. 1-1A and 1-1B, the display assembly 1-108 can be a front-facing display assembly including a display screen configured to project light in a first, forward direction, and the rear-facing display screens 1-122a-b can be configured to project light in a second, rearward direction opposite the first direction. As described above, the light seal 1-110 can be configured to block light outside the HMD 1-100, including light projected by the front-facing display screen of the display assembly 1-108 shown in the front perspective view of FIG. 1-1A, from reaching the user's eyes. In at least one example, the HMD 1-100 can also include a curtain 1-124 that blocks a second opening 1-154 between the housing 1-150 and the rear-facing display assemblies 1-120a-b. In at least one example, the curtain 1-124 can be elastic or at least partially elastic.

[0832] Any of the features, components, and / or parts shown in Figures 1-1A and 1-1B, including their arrangements and configurations, alone or in any combination, may be included in any of the other example devices, features, components, and parts shown in Figures 1-2 through 1-4 and described herein. Similarly, any of the features, components, and / or parts shown and described with reference to Figures 2 through 4, including their arrangements and configurations, alone or in any combination, may be included in the example devices, features, components, and parts shown in Figures 1-1A and 1-1B.

[0833] FIG. 1-2 shows a diagram of an example of an HMD 1-200 including various portions or components separated according to modularity and selective coupling of those components. For example, the HMD 1-200 can include a band 1-216 that can be selectively coupled to first and second electronic straps 1-205a, 1-205b. The first anchoring strap 1-205a can include a first electronic component 1-212a, and the second anchoring strap 1-205b can include a second electronic component 1-212b. In at least one example, the first and second straps 1-205a-b can be removably coupled to the display unit 1-202.

[0834] Additionally, the HMD 1-200 may include a light seal 1-210 configured to be removably coupled to the display unit 1-202. The HMD 1-200 may also include lenses 1-218 that may be removably coupled to the display unit 1-202, for example, on first and second display assemblies including a display screen. The lenses 1-218 may include customized prescription lenses configured for vision correction. As noted, each component shown in FIG. 1-2 and described above may be removably coupled, attached, reattached, or interchangeable to update or replace components for different users. For example, bands such as band 1-216, light seals such as light seal 1-210, lenses such as lens 1-218, and electronic straps such as straps 1-205a-b may be interchangeable depending on the user, such that these components are customized to fit and accommodate individual users of the HMD 1-200.

[0835] Any of the features, components, and / or parts shown in Figure 1-2, including their arrangements and configurations, alone or in any combination, may be included in any of the other example devices, features, components, and parts shown in Figures 1-1A, 1-1B, and 1-3-1-4 and described herein. Similarly, any of the features, components, and / or parts shown and described with reference to Figures 1-1A, 1-1B, and 1-3-1-4, including their arrangements and configurations, alone or in any combination, may be included in the example devices, features, components, and parts shown in Figure 1-2.

[0836] FIG. 1-3 shows a diagram of an example display unit 1-306 of an HMD. The display unit 1-306 may include a front display assembly 1-308, a frame / housing assembly 1-350, and a curtain assembly 1-324. The display unit 1-306 may also include a sensor assembly 1-356, a logic board assembly 1-358, and a cooling assembly 1-360 disposed between the frame assembly 1-350 and the front display assembly 1-308. In at least one example, the display unit 1-306 may also include a rear-facing display assembly 1-320 including first and second rear-facing display screens 1-322a, 1-322b disposed between the frame 1-350 and the curtain assembly 1-324.

[0837] In at least one example, the display unit 1-306 can also include a motor assembly 1-362 configured as an adjustment mechanism for adjusting the position of the display screens 1-322a-b of the display assembly 1-320 relative to the frame 1-350. In at least one example, the display assembly 1-320 is mechanically coupled to the motor assemblies 1-362 with at least one motor for each display screen 1-322a-b such that the motors can translate the display screens 1-322a-b to match the interpupillary distance of a user's eyes.

[0838] In at least one example, the display unit 1-306 can include a dial or button 1-328 that is depressible relative to the frame 1-350 and accessible to a user outside of the frame 1-350. The button 1-328 can be electronically connected to the motor assembly 1-362 via a controller such that a user can operate the button 1-328 to cause motors in the motor assembly 1-362 to adjust the position of the display screen 1-322a-b.

[0839] Any of the features, components, and / or parts shown in Figures 1-3, including their arrangements and configurations, either alone or in any combination, may be included in any of the other example devices, features, components, and parts shown in Figures 1-1A-1-2 and 1-4 and described herein. Similarly, any of the features, components, and / or parts shown and described with reference to Figures 1-1A-1-2 and 1-4, including their arrangements and configurations, either alone or in any combination, may be included in the example devices, features, components, and parts shown in Figures 1-3.

[0840] 1-4 shows a diagram of another example display unit 1-406 of an HMD device similar to other HMD devices described herein. The display unit 1-406 can include a forward display assembly 1-402, a sensor assembly 1-456, a logic board assembly 1-458, a cooling assembly 1-460, a frame assembly 1-450, a rear-facing display assembly 1-421, and a curtain assembly 1-424. The display unit 1-406 can also include a motor assembly 1-462 for adjusting the position of first and second display subassemblies 1-420a, 1-420b of the rear-facing display assembly 1-421, including respective first and second display screens for interpupillary adjustment, as described above.

[0841] The various components, systems, and assemblies shown in the diagrams of Figures 1-4 are described in more detail herein with reference to Figures 1-1A-1-3 and subsequent figures referenced in this disclosure. The display unit 1-406 shown in Figures 1-4 can be assembled and integrated with the fastening mechanisms shown in Figures 1-1A-1-3, including electronic straps, bands, and other components including optical seals, connection assemblies, etc.

[0842] Any of the features, components, and / or parts shown in Figures 1-4, including their arrangements and configurations, alone or in any combination, may be included in any of the other example devices, features, components, and parts shown in Figures 1-1A-1-3 and described herein. Similarly, any of the features, components, and / or parts shown and described with reference to Figures 1-1A-1-3, including their arrangements and configurations, alone or in any combination, may be included in the example devices, features, components, and parts shown in Figures 1-4. II: Cover glass

[0843] Figure 2.0-1 shows a diagram of an HMD 2.0-100 comprising a front cover and display assembly 2.0-102 comprising one or more transparent layers, a display integration assembly, a shroud, and a dust seal, which are described in Sections II, III, IV, and V below. 2.1: Systems with transparent layers

[0844] The transparent layers may be used to form windows in buildings, vehicles, and / or other systems. The transparent layers may also be used in forming protective cover layers, such as cover layers for optical components.

[0845] FIG. 2.1-1 is a cross-sectional side view of an exemplary system including a transparent layer. System 2.1-10 of FIG. 2.1-1 includes a support, such as support 2.1-12, to which one or more transparent layers, such as transparent layer 2.1-14, may be attached. System 2.1-10 may be a building (e.g., support 2.1-12 may include a building wall), a vehicle (e.g., support 2.1-12 may be a vehicle body), an electronic device (e.g., support 2.1-12 may be an electronic device housing, such as a head-mounted housing for a head-mounted device), and / or any other suitable system. In configurations where System 2.1-10 is a building or vehicle, layer 2.1-14 may function as a window. In configurations where System 2.1-10 is an electronic device, layer 2.1-14 may overlay and protect components within the device. For example, layer 2.1-14 may function as a protective cover layer overlying optical components. In an exemplary configuration, system 2.1-10 is a portable electronic device (eg, a mobile phone, a head-mounted device, a tablet computer, a laptop computer, a wristwatch, etc.).

[0846] The transparent layer 2.1-14 and the support 2.1-12 can separate the interior region 2.1-16 of the system 2.1-10 from the exterior region 2.1-18. System components can be mounted within the interior region 2.1-16. The layer 2.1-14 can have opposing interior and exterior surfaces. The exterior surface of the layer 2.1-14 can face the exterior region 2.1-18, and the interior surface of the layer 2.1-14 can face the interior region 2.1-16. The surface of the layer 2.1-14 can include flat and / or curved portions. For example, the layer 2.1-14 can have a shape with a curved cross-sectional profile, such as shape 2.1-20. In a curved configuration of the layer 2.1-14, the interior and exterior surfaces can be parallel to one another (e.g., the thickness of the layer 2.1-14 can be constant across the layer 2.1-14). If desired, some or all of the surface of layer 2.1-14 may have a compound curvature (a surface that can only be flattened to a plane with distortion). The surface area of ​​the compound curvature may be curved about both the X and Y axes of Figure 2.1-1.

[0847] FIG. 2.1-2 illustrates how layer 2.1-14 can overlap components in interior region 2.1-16, such as exemplary components 2.1-20 and 2.1-22. Components 2.1-20 and 2.1-22 may include optical components that emit and / or detect light. As an example, component 2.1-22 may be a display that emits visible light that passes through layer 2.1-14. This allows a viewer in exterior region 2.1-18 to view an image on the display through layer 2.1-14 (e.g., layer 2.1-14 may function as a display cover layer). Components such as component 2.1-20 may include, for example, visible and / or infrared cameras and / or other optical sensors that receive light through layer 2.1-14. By overlapping components 2.1-20 and 2.1-22 as shown in Figure 2.1-2, layer 2.1-14 can act as a protective cover layer for components 2.1-20 and 2.1-22.

[0848] During an event, such as a drop event, in which System 2.1-10 suddenly contacts the ground or other hard surface, Layer 2.1-14 may be subjected to an undesirable amount of stress. To help improve durability, Layer 2.1-14 may be provided with one or more polymer layers. By way of example, polymer layers may be used to laminate multiple layers of transparent material together, and / or polymer layers may be formed on exposed interior and / or exterior surfaces of Layer 2.1-14.

[0849] Figure 2.1-3 is a cross-sectional side view of layer 2.1-14. As shown in Figure 2.1-3, layer 2.1-14 may comprise multiple layers of transparent material, such as layers 2.1-40, 2.1-34, 2.1-32, and 2.1-30. In an exemplary configuration, layer 2.1-14 comprises two layers of rigid transparent material and one or more flexible layers attached to the rigid layers. The flexible layers may be, for example, polymer layers that help provide durability.

[0850] In the example of Figure 2.1-3, layer 2.1-34 may be a hard layer, such as a layer of glass (including glass-ceramic) or sapphire or other crystalline material. An exemplary configuration in which layer 2.1-34 is a glass layer may be described herein by way of example. Layer 2.1-34 may be formed from an alumina silicate glass or other glass material and may optionally be chemically strengthened using an ion-exchange chemical strengthening process that places the surface of layer 2.1-34 in compression against the core of layer 2.1-34. Layer 2.1-34 may have a thickness sufficient to provide layer 2.1-34 with some or all of its structural strength; therefore, layer 2.1-34 may also be referred to as a structural layer, a structural transparent layer, or a structural glass layer. Layer 2.1-34 may have a thickness of, by way of example, 700 microns, at least 400 microns, at least 500 microns, at least 600 microns, less than 1200 microns, less than 1000 microns, less than 900 microns, less than 800 microns, 400-1200 microns, 400-1100 microns, 400-1000 microns, 400-800 microns, and / or other suitable thicknesses.

[0851] One or more polymer layers may be attached to layer 2.1-34. In an exemplary configuration, polymer layer 2.1-40 is attached to the inner surface 2.1-42 of layer 2.1-34. Layer 2.1-40 may comprise a first layer, such as layer 2.1-38, and a second layer, such as layer 2.1-36. Layer 2.1-38 may be a polymer film (e.g., a polycarbonate, polyethylene terephthalate film, or other polymer film) and may have a thickness of 50 microns, 10-250 microns, 25-100 microns, at least 20 microns, less than 200 microns, less than 150 microns, or other suitable thickness. Layer 2.1-36 may be a polymer layer, such as a layer of polymer adhesive (e.g., epoxy, acrylic adhesive, curing liquid adhesive, pressure sensitive adhesive, and / or other adhesive) that attaches layer 2.1-38 to layer 2.1-34, and may have a thickness of 100 microns, 20-500 microns, at least 30 microns, less than 250 microns, less than 300 microns, or other suitable thickness.

[0852] If desired, additional polymer layers, such as polymer layer 2.1-32, may be attached to the upper outer surface 1.3-44 of layer 2.1-34. Layer 2.1-32 may be formed from an elastomeric polymer or other soft polymer material. Examples of materials that may be used in forming polymer layer 2.1-32 include polyvinyl butyral and ethylene vinyl acetate. Other polymers may be used in forming layer 2.1-32, if desired. Layer 2.1-32 may be the outermost layer of material in layer 2.1-14 (e.g., the outer surface of layer 2.1-32 may be exposed in region 2.1-18), or layer 2.1-32 may be covered with a harder outer layer.

[0853] As shown in Figure 2.1-3, a thin, rigid layer, such as outer layer 2.1-30, can be attached to layer 2.1-34 using, for example, layer 2.1-32, sometimes referred to as an elastomeric polymer layer or polymer interlayer. The thickness of layer 2.1-32 may be 50 microns, 25-100 microns, at least 20 microns, at least 40 microns, at least 50 microns, less than 400 microns, 25-400 microns, less than 300 microns, less than 200 microns, 20-200 microns, 50-400 microns, or other suitable thickness. Layer 2.1-30 can be formed from a crystalline material such as glass (including glass ceramic), sapphire, or a rigid polymer (e.g., hardened acrylic). The thickness of layer 2.1-30 is preferably less than the thickness of layer 2.1-34 to help minimize the weight of layer 2.1-34.

[0854] In an exemplary configuration, layer 2.1-30 is formed as a separate layer (e.g., a glass layer separate from layer 2.1-34) attached to layer 2.1-34 by laminating layers 2.1-30 and 2.1-34 together using polymer layer 2.1-32. The thickness of layer 2.1-30 in this type of configuration may be at least 50 microns, at least 75 microns, at least 100 microns, less than 300 microns, less than 250 microns, less than 200 microns, less than 150 microns, less than 100 microns, 50-200 microns, 25-300 microns, 50-150 microns, or any other suitable thickness (e.g., a thickness that provides the outermost surface of layer 2.1-14 with sufficient hardness to resist scratches). In addition to providing scratch resistance, the inclusion of a hard outer layer such as layer 2.1-30 relative to layer 2.1-14 helps to increase the strength of layer 2.1-14, thereby allowing the thickness of layer 2.1-34 to be reduced. To help match the curvature of layers 2.1-30 and 2.1-34 in this type of configuration, layers 2.1-30 and 2.1-34 may be formed into the desired shape using molding operations (e.g., glass molding), machining and / or polishing operations, etching (wet and / or dry chemical etching), and / or other suitable shaping operations.

[0855] In some embodiments, layer 2.1-30 may be deposited as a coating on layer 2.1-32. By way of example, deposition techniques such as physical vapor deposition and sol-gel deposition can be used to deposit an inorganic dielectric layer of a hard material (e.g., a glass coating formed from silicon nitride, silicon oxynitride, zirconia, alumina, and / or other hard dielectric coatings deposited by physical vapor deposition, or a glass coating formed from an inorganic dielectric based on silicon oxide deposited by a sol-gel deposition technique). The thickness of this coating can be sufficient to enhance the durability of the coating (e.g., to help prevent scratching of layer 2.1-32). By way of example, layer 2.1-30 may have a thickness of at least 20 microns, at least 25 microns, at least 35 microns, and / or other suitable thicknesses. If desired, a liquid polymer (e.g., a liquid acrylic) can be deposited and cured to form an acrylic hard coat (e.g., layer 2.1-30 may be a polymer hard coat that is harder than layer 2.1-32 and therefore helps resist scratching). 2.2: System with display and sensor

[0856] FIG. 2.2-1 is a side view of an exemplary head-mounted electronic device. As shown in FIG. 2.2-1, head-mounted device 2.2-10 may include a head-mounted support structure 2.2-26. Support structure 2.2-26 may have walls or other structures that separate an interior region of device 2.2-10, such as interior region 2.2-42, from an exterior region surrounding device 2.2-10, such as exterior region 2.2-44. Electrical components 2.2-40 (e.g., integrated circuits, sensors, control circuits, light-emitting diodes, lasers, and other light-emitting devices, other control circuits, and input / output devices) may be mounted on printed circuits and / or other structures within device 2.2-10 (e.g., within interior region 2.2-42).

[0857] To present an image to the user for viewing from an eyebox, such as eyebox 2.2-34, device 2.2-10 may include a rear display, such as display 2.2-14R, and a lens, such as lens 2.2-38. These components may be mounted in an optical module, such as optical module 2.2-36 (e.g., a lens barrel), to form respective left and right optical systems. For example, there may be a left rear display for presenting an image through the left lens to the user's left eye in the left eyebox, and a right rear display for presenting an image to the user's right eye in the right eyebox. The user's eyes are located within eyebox 34 on the rear R of device 2.2-10 when structure 2.2-26 is placed against the outer surface of the user's face (face surface 2.2-30).

[0858] The support structure 2.2-26 can include a main support structure, such as a main housing portion 2.2-26M (sometimes referred to as a main portion). The main housing portion 2.2-26M can extend from a front side F of the device 2.2-10 to an opposite rear side R of the device 2.2-10. At the rear side R, the main housing portion 2.2-26M can have a cushioning structure to enhance user comfort when the portion 2.2-26M is placed against the face 2.2-30. If desired, the support structure 2.2-26 can include an optional head strap, such as strap 2.2-26B, and / or other structure that allows the device 2.2-10 to be worn on the user's head.

[0859] Device 2.2-10 can have a publicly viewable, forward-facing display, such as display 2.2-14F, mounted on the front side F of main housing portion 2.2-26M. Display 2.2-14F can be visible to the user when the user is not wearing device 2.2-10 and / or can be viewable by others in the vicinity of device 2.2-10. Display 2.2-14F can be seen on the front side F of device 2.2-10 by an external observer, such as observer 2.2-50 looking at device 2.2-10 in direction 2.2-52, as one example.

[0860] A schematic diagram of an exemplary system that may include a head-mounted device is shown in Figure 2.2-2. As shown in Figure 2.2-2, System 2.2-8 may include one or more Electronic Devices 2.2-10. Devices 2.2-10 may include a head-mounted device (e.g., Device 2.2-10 of Figure 2.2-1), accessories such as controllers and headphones, computing devices (e.g., cellular phones, tablet computers, laptop computers, desktop computers, and / or remote computing devices that provide content to the head-mounted device), and / or other devices that communicate with each other.

[0861] Each electronic device 2.2-10 may have a control circuit 2.2-12. The control circuit 2.2-12 may include storage and processing circuitry that controls the operation of the device 2.2-10. The circuit 2.2-12 may include storage such as hard disk drive storage, non-volatile memory (e.g., electrically programmable read-only memory configured to form a solid-state drive), or volatile memory (e.g., static or dynamic random access memory). The processing circuitry of the control circuit 2.2-12 may be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio chips, graphics processing units, application-specific integrated circuits, and other integrated circuits. Software code may be stored on the storage within the circuit 2.2-12 and executed on the processing circuitry within the circuit 2.2-12 to perform control operations for the device 2.2-10 (e.g., data collection operations, operations involving adjusting components of the device 2.2-10 using control signals, etc.). The control circuit 2.2-12 may include wired and wireless communication circuitry. For example, control circuit 2.2-12 may include wireless transceiver circuitry such as cellular telephone transceiver circuitry, wireless local area network transceiver circuitry (e.g., WiFi® circuitry), millimeter wave transceiver circuitry, and / or other wireless communication circuitry.

[0862] In operation, communication circuitry of devices in System 2.2-8 (e.g., communication circuitry of Control Circuit 2.2-12 of Device 2.2-10) can be used to support communication between electronic devices. For example, one electronic device can transmit video data, audio data, control signals, and / or other data to another electronic device in System 2.2-8. Electronic devices in System 2.2-8 can communicate over one or more communication networks (e.g., the Internet, a local area network, etc.) using wired and / or wireless communication circuitry. The communication circuitry can be used to enable Device 2.2-10 to receive data from and / or provide data to external devices (e.g., portable devices such as tethered computers, handheld devices, or laptop computers, online computing devices such as remote servers or other remote computing devices, or other electrical devices).

[0863] Each device 2.2-10 in system 2.2-8 may include an input / output device 2.2-22. The input / output device 2.2-22 may be used to allow a user to provide user input to the device 2.2-10. The input / output device 2.2-22 may also be used to gather information about the environment in which the device 2.2-10 is operating. Output components within the device 2.2-22 may allow the device 2.2-10 to provide output to the user and may be used to communicate with external electrical equipment.

[0864] As shown in Figure 2.2-2, input / output device 2.2-22 can include one or more displays, such as display 2.2-14. Display 2.2-14 can include a rear display, such as display 2.2-14R in Figure 2.2-1. Device 2.2-10 can include left and right components, such as, for example, left and right scanning mirror display devices or other image projectors, liquid crystal on silicon display devices, digital mirror devices, or other reflective display devices, left and right display panels based on light emitting diode pixel arrays (e.g., organic light emitting displays having polymer or semiconductor substrates, or display devices based on pixel arrays formed from crystalline semiconductor light emitting diode dies), liquid crystal display panels, and / or other left and right display devices that provide images to the left and right eyeboxes for viewing by a user's left and right eyes, respectively. Display components such as these (e.g., organic light-emitting displays with flexible polymer substrates, or displays based on pixel arrays formed from crystalline semiconductor light-emitting diode dies on flexible substrates) can also be used in forming front displays (sometimes called forward-facing displays, front displays, or publicly viewable displays) for devices 2.2-10, such as front display 2.2-14F in Figure 2.2-1.

[0865] In operation, the display 2.2-14 (e.g., display 2.2-14R and / or 2.2-14F) may be used to display visual content (e.g., still and / or moving images, including photographs and pass-through video from a camera sensor, text, graphics, movies, games, and / or other visual content) for a user of the device 2.2-10. The content presented on the display 2.2-14 may include, for example, virtual objects and other content provided to the display 2.2-14 by the control circuitry 2.2-12. This virtual content may also be referred to as computer-generated content. The computer-generated content may be displayed in the absence of real-world content or may be combined with real-world content. In some configurations, a real-world image may be captured by a camera (e.g., a forward-facing camera, sometimes referred to as a front camera), and the computer-generated content may be electronically overlaid on portions of the real-world image (e.g., when the device 2.2-10 is a pair of virtual reality goggles).

[0866] The input / output circuitry 2.2-22 may include sensors 2.2-16, such as, for example, three-dimensional sensors (e.g., three-dimensional image sensors such as structured light sensors that emit a light beam and use a two-dimensional digital image sensor to collect image data for a three-dimensional image from dots or other light spots created when a target is illuminated by the light beam; binocular three-dimensional image sensors that use two or more cameras in a binocular imaging configuration to collect three-dimensional images; and three-dimensional LIDAR (light detection and ranging), sometimes referred to as a time-of-flight camera or three-dimensional time-of-flight camera. ranging) sensors, three-dimensional radio frequency sensors, or other sensors that collect three-dimensional image data), cameras (e.g., two-dimensional infrared and / or visible digital image sensors), eye-tracking sensors (e.g., eye-tracking systems based on image sensors and, optionally, light sources that emit one or more light beams that are reflected from the user's eyes and then tracked using the image sensors), sensors such as touch sensors, capacitive proximity sensors, light-based (optical) proximity sensors, other proximity sensors, force sensors (e.g., strain gauges, capacitive force sensors, resistive force sensors, etc.), switch-based contact sensors, gas sensors, pressure sensors, humidity sensors, magnetic sensors, audio sensors (microphones), ambient light sensors, flicker sensors that collect temporal information about ambient lighting conditions such as the presence of time-varying ambient light intensity associated with artificial lighting, microphones for collecting voice commands and other audio inputs, sensors configured to collect information about movement, position, and / or orientation (e.g., accelerometers, gyroscopes, compasses, and / or inertial measurement units that include all of these sensors or a subset of one or two of these sensors), and / or other sensors.

[0867] User input and other information may be collected using sensors and other input devices within the input / output device 2.2-22. Optionally, the input / output device 2.2-22 may include other devices 2.2-24 such as tactile output devices (e.g., vibrating components), light emitting diodes, lasers, and other light sources (e.g., light emitting devices that emit light to illuminate the environment surrounding the device 2.2-10 when ambient light levels are low), speakers such as ear speakers for generating audio output, circuitry for receiving wireless power, circuitry for wirelessly transmitting power to other devices, batteries and other energy storage devices (e.g., capacitors), joysticks, buttons, and / or other components.

[0868] As described in connection with Figure 2.2-1, electronic device 2.2-10 can have a head-mounted support structure (e.g., a head-mounted housing structure such as a housing wall, strap, etc.), such as head-mounted support structure 2.2-26. The head-mounted support structure may be configured to be worn on a user's head (e.g., against the user's face over the user's eyes) during operation of device 2.2-10 and can support display 2.2-14, sensors 2.2-16, other components 2.2-24, other input / output devices 2.2-22, and control circuitry 2.2-12 (see, e.g., component 2.2-40 and optical module 2.2-36 in Figure 2.2-1).

[0869] Figure 2.2-3 is a front view of device 2.2-10 in an exemplary configuration in which device 2.2-10 has a publicly viewable display, such as front display 2.2-14F. As shown in Figure 2.2-3, support structure 2.2-26M of device 2.2-10 can have right and left portions, such as portions 2.2-26R and 2.2-26L, joined by an intervening nose bridge portion, such as portion 2.2-26NB. Portion 2.2-26NB can have a curved outer surface, such as nose bridge surface 2.2-90, configured to receive and rest on a user's nose to help support main housing portion 2.2-26M on the user's head.

[0870] The display 2.2-14F may have an active area, such as active area AA, configured to display an image, and an inactive area IA that does not display an image. The contour of the active area AA may be rectangular, a rectangle with rounded corners, teardrop-shaped portions on the left and right sides of the device 2.2-10, a shape with straight edges, a shape with curved edges, a shape with a periphery that has both straight and curved portions, and / or any other suitable contour. As shown in Figure 2.2-3, the active area AA may have a curved recess in the nose bridge portion 2.2-26NB of the main housing portion 2.2-26. The presence of a nose-shaped recess in the active area AA can help fit the active area AA within the available space of the housing portion 2.2-26M without unduly restricting the size of the active area AA.

[0871] The active area AA includes an array of pixels. The pixels may be light-emitting diode pixels formed, for example, from thin-film organic light-emitting diodes or crystalline semiconductor light-emitting diode dies (sometimes called micro-light-emitting diodes) on a flexible display panel substrate. Configurations in which the display 2.2-14F uses other display technologies may also be used, if desired. An exemplary configuration in which the display 2.2-14 is formed from a light-emitting diode display, such as an organic light-emitting diode display, formed on a flexible substrate (e.g., a substrate formed from a bendable layer of polyimide or a sheet of other flexible polymer) is sometimes described herein by way of example. The pixels of the active area AA may be formed on a display device such as the display panel 2.2-14P (e.g., a flexible organic light-emitting diode display panel) of Figure 2.2-3. In some configurations, the outline of the panel 2.2-14P may have a periphery that includes straight segments or a combination of straight and curved segments. Configurations in which the entire outline of the panel 2.2-14P is characterized by a curved periphery may also be used.

[0872] Display 2.2-14F may have an inactive area, such as inactive area IA, that is devoid of pixels and does not display an image. Inactive area IA may form an inactive border region that extends along one or more portions of the periphery of active area AA. In the exemplary configuration of FIG. 2.2-3, inactive area IA has a ring shape that surrounds active area AA. In this type of configuration, the width of inactive area IA may be relatively constant, and the inner and outer edges of area IA may be characterized by straight and / or curved segments or may be curved along their entire length. For example, the periphery of the outer edge of area IA (e.g., of display 2.2-14F) may have a curved contour that extends parallel to the curved edge of active area AA.

[0873] In some configurations, the device 2.2-10 can operate with other devices (e.g., wireless controllers and other accessories) in the system 2.2-8. These accessories can have magnetic sensors that sense the direction and strength of magnetic fields. The device 2.2-10 can have one or more electromagnets configured to emit magnetic fields. The magnetic fields can be measured by wireless accessories near the device 2.2-10, allowing the accessories to determine their orientation and position relative to the device 2.2-10. This allows the accessories to wirelessly provide real-time information about their current position, orientation, and movement to the device 2.2-10, thereby allowing the accessories to function as wireless controllers. Accessories can include wearable devices, handled devices, and other input devices.

[0874] In an exemplary configuration, device 2.2-10 can have a coil, such as exemplary coil 2.2-54, extending around the periphery of display 2.2-14F (e.g., beneath inactive area IA or other portions of display 2.2-14F). Coil 2.2-54 can have any suitable number of windings (e.g., between 1 and 10, at least 2, at least 5, at least 10, between 10 and 50, less than 100, less than 25, less than 6, etc.). These windings may be formed from metal traces on a substrate, from wire, and / or from other conductive lines. In operation, control circuit 2.2-12 can provide an alternating current (AC) drive signal to coil 2.2-54. The drive signal can have a frequency (by way of example) of at least 1 kHz, at least 10 kHz, at least 100 kHz, at least 1 MHz, less than 10 MHz, less than 3 MHz, less than 300 kHz, or less than 30 kHz. When AC current flows through coil 2.2-54, a corresponding magnetic field is generated in the vicinity of device 2.2-10. An electronic device, such as a wireless controller, having a magnetic sensor in the vicinity of device 2.2-10 can use the magnetic field as a reference to determine the orientation, position, and / or movement of the wireless controller as it is moved relative to device 2.2-10 and provide input to device 2.2-10.

[0875] As an example, consider a handheld wireless controller used to control the operation of device 2.2-10. During operation, device 2.2-10 emits a magnetic field using coil 2.2-54. As the handheld wireless controller is moved, a magnetic sensor in the controller can monitor the location and movement of the controller relative to device 2.2-10 by monitoring the strength, orientation, and changes in strength and / or orientation of the magnetic field emitted by coil 2.2-54 as the controller is moved through the air by the user. The electronic device can then wirelessly transmit information regarding the location and orientation of the controller to device 2.2-10. In this manner, the handheld controller, wearable controller, or other external accessory can be manipulated by the user to provide air gestures, pointing inputs, steering inputs, and / or other user inputs to device 2.2-10.

[0876] Device 2.2-10 can include components such as optical components (e.g., optical sensors among sensors 2.2-16 in FIG. 2.2-2). These components can be mounted in any suitable location on the head-mounted support structure 2.2-26 (e.g., on head strap 2.2-26B, on main housing portion 2.2-26M, etc.). The optical and other components can face rearward (e.g., when mounted on the rear of device 2.2-10), sideward (e.g., left or right), downward or upward, toward the front of device 2.2-10 (e.g., when mounted on the front of device 2.2-10), or can be mounted to point in any combination of these directions (e.g., forward, right, and downward), and / or in other suitable orientations. In an exemplary configuration, at least some of the components of device 2.2-10 are mounted to face outward toward the front (and optionally sideways and / or up and down). For example, forward-facing cameras for pass-through video may be mounted on the left and right sides of the front of device 2.2-10 in a configuration such that the cameras diverge slightly along the horizontal dimension and their fields of view overlap to some extent while capturing a wide-angle image of the environment in front of device 2.2-10. The captured image can optionally include portions of the user's surroundings below, above, and to the sides of the area directly in front of device 2.2-10.

[0877] To help conceal components such as optical components from view outside the device 2.2-10, it may be desirable to cover some or all of the components with a cosmetic cover structure. The cover structure may include a transparent portion (e.g., an optical component window) characterized by sufficient optical transparency to allow the overlapping optical components to operate satisfactorily. For example, an ambient light sensor may be covered with a layer that appears opaque to an external observer to help hide the ambient light sensor from view, but that allows sufficient ambient light to pass through to the ambient light sensor for the ambient light sensor to make satisfactory ambient light measurements. As another example, an optical component that emits infrared light may be overlaid with a visually opaque material that is transparent to infrared light.

[0878] In an exemplary configuration, optical components for device 2.2-10 may be mounted within the inactive area IA of FIG. 2.2-3, and a cosmetic cover structure may be formed in a ring shape to overlap the optical components within the inactive area IA. The cosmetic cover structure may be formed from ink, polymer structures, metal-containing structures, other materials, and / or combinations of these materials. In an exemplary configuration, the cosmetic cover structure may be formed from a ring-shaped member having a footprint that matches the footprint of the inactive area IA. For example, if the active area AA has left and right portions with a teardrop shape, the ring-shaped member may have curved edges that follow the curved perimeter of the teardrop-shaped portion of the active area AA. The ring-shaped member may be formed from one or more polymer structures (e.g., the ring-shaped member may be formed from a polymer ring). Because the ring-shaped member can help hide the overlapping components from view, the ring-shaped member may also be referred to as a shroud or ring-shaped shroud member. The appearance of the shroud or other cosmetic cover structure may be characterized by a neutral color (white, black, or gray) or a non-neutral color (e.g., blue, red, green, gold, rose gold, etc.).

[0879] Display 2.2-14F may optionally have a protective display cover layer that may overlay active area AA and inactive area IA (e.g., the entire front surface of device 2.2-10 as viewed from direction 2.2-52 in FIG. 2.2-1 may be covered by a cover layer). The cover layer, sometimes referred to as a housing wall or transparent housing wall, may have a rectangular outline, a teardrop outline, an oval outline, or other shape with curved and / or straight edges.

[0880] The cover layer can be formed from a transparent material, such as glass, polymer, a transparent crystalline material such as sapphire, a transparent ceramic, other transparent materials, and / or a combination of these materials. As an example, a protective display cover layer for display 2.2-14F can be formed from safety glass (e.g., laminated glass including a transparent glass layer with a laminated polymer film). Optional coating layers can be applied to the surface of the display cover layer. If necessary, the display cover layer can be chemically strengthened (e.g., using an ion-exchange process to create an outer layer of material under compressive stress that is scratch-resistant). In some configurations, the display cover layer can be formed from a stack of two or more material layers (e.g., a first structural glass layer and a second structural glass layer, a rigid polymer layer bonded to a glass layer or another rigid polymer layer, etc.) to improve the performance of the cover layer.

[0881] In the active area AA, a display cover layer may overlie the pixels of the display panel 2.2-14P. The display cover layer in the active area AA is preferably transparent so that the image presented on the display panel 2.2-14P can be viewed. In the inactive area IA, the display cover layer may overlie a ring-shaped shroud or other cosmetic cover structure. The shroud and / or other cover structure (e.g., an opaque ink coating on the inner surface of the display cover layer and / or structure) may be sufficiently opaque to help hide some or all of the optical components in the inactive area IA from view. Windows may be provided in the shroud or other cosmetic cover structure to help ensure satisfactory operation of the optical components over which these structures are located. The windows may be formed from holes, from areas of the shroud or other cosmetic cover structure that have been locally thinned to enhance light transmission, from window members with desired light transmission properties inserted into mating openings in the shroud, and / or from other shroud-window structures.

[0882] In the example of Figure 2.2-3, device 2.2-10 includes optical components such as (by way of example) optical components 2.2-60, 2.2-62, 2.2-64, 2.2-66, 2.2-68, 2.2-70, 2.2-72, 2.2-74, 2.2-76, 2.2-78, and 2.2-80. Each of these optical components (e.g., an optical sensor selected from among sensors 2.2-16 of Figure 2.2-2, a light emitting device, etc.) can be configured to detect light and, as needed, emit light (e.g., ultraviolet, visible, and / or infrared light).

[0883] In an exemplary configuration, optical component 2.2-60 can sense ambient light (e.g., visible ambient light). In particular, optical component 2.2-60 can have a photodetector that senses changes in ambient light intensity as a function of time. As an example, if a user is operating in an environment with an artificial light source, the light source can emit light at a frequency associated with its wall power source (e.g., 60 Hz AC mains). The photodetector of component 2.2-60 can sense that the artificial light from the artificial light source is characterized by 60 Hz intensity fluctuations. Control circuit 2.2-12 can use this information to adjust a clock or other timing signal associated with the operation of an image sensor in device 2.2-10 to help avoid undesirable interference between the light source frequency and the frame rate or other frequencies associated with image capture operations. Control circuit 2.2-12 can also use measurements from component 2.2-60 to help identify the presence and type of artificial lighting present. In this way, control circuit 2.2-12 can detect the presence of light, such as fluorescent lights or other lights with known non-ideal color characteristics, and can make corrective color cast adjustments (e.g., white point adjustments) to color-sensitive components such as cameras and displays. Because optical component 2.2-60 can measure variations in light intensity, component 2.2-60 is sometimes referred to as a flicker sensor or ambient light frequency sensor.

[0884] Optical component 2.2-62 may be an ambient light sensor. The ambient light sensor may include one or more photodetectors. In a single-photodetector configuration, the ambient light sensor may be a monochrome sensor that measures ambient light intensity. In a multi-photodetector configuration, each photodetector may be overlaid with an optical filter that passes a different wavelength band (e.g., different visible and / or infrared passbands). The optical filter passbands may overlap at their edges. This allows component 2.2-62 to function as a color ambient light sensor that measures both ambient light intensity and ambient light color (e.g., by measuring the color coordinates of the ambient light). During operation of device 2.2-10, control circuit 2.2-12 can take action based on the measured ambient light intensity and color. As an example, the white point of a display or image sensor may be adjusted, or other display or image sensor color adjustments may be made, based on the measured ambient light color. The intensity of the display may be adjusted based on the light intensity. For example, the brightness of display 2.2-14F may be increased in bright ambient lighting conditions to enhance the visibility of the image on the display, and the brightness of display 2.2-14F may be reduced in dim lighting conditions to conserve power. Image sensor operation and / or light source operation may also be adjusted based on ambient light readings.

[0885] Optical components within the active area IA can also include components along the sides of device 2.2-10, such as components 2.2-80 and 2.2-64. Optical components 2.2-80 and 2.2-64 can be pose-tracking cameras used to help monitor the orientation and movement of device 2.2-10. Components 2.2-80 and 2.2-64 can be visible light cameras (and / or cameras sensitive to visible and infrared wavelengths) and, together with an inertial measurement unit, can form a visual inertial odometry (VIO) system.

[0886] Optical components 2.2-78 and 2.2-66 may be visible light cameras that capture real-time images of the environment surrounding device 2.2-10. These cameras, sometimes referred to as scene cameras or pass-through video cameras, can capture video that is displayed in real time on display 2.2-14R for the user to view when the user's eyes are positioned within eyebox 2.2-34 at the rear of device 2.2-10. In this manner, displaying a pass-through image (pass-through video) to the user can provide the user with real-time information about their surroundings. If desired, virtual content (e.g., computer-generated imagery) can be overlaid on top of portions of the pass-through video. Device 2.2-10 can also operate in a non-pass-through video mode in which components 2.2-78 and 2.2-66 are turned off and the user is presented with only movie content, game content, and / or other virtual content that does not include real-time real-world imagery.

[0887] The input / output devices 2.2-22 of the device 2.2-10 can collect user input for use in controlling the operation of the device 2.2-10. As an example, a microphone within the device 2.2-10 can collect voice commands. Buttons, touch sensors, force sensors, and other input devices can collect user input from a user's fingers or other external objects in contact with the device 2.2-10. In some configurations, it may be desirable to monitor the user's hand gestures or other movements of the user's body parts. This can allow the location of the user's hands or other body parts to be replicated in a game or other virtual environment, allowing the user's hand movements to act as hand gestures (or air gestures) that control the operation of the device 2.2-10. User input, such as hand gesture input, can be captured using cameras operating in visible and infrared wavelengths, such as tracking cameras (e.g., optical components 2.2-76 and 2.2-68). Tracking cameras such as these may also track reference points and other recognizable features on controllers and other external accessories (additional devices 2.2-10 of system 2.2-8) during use of these controllers in controlling the operation of device 2.2-10. Optionally, tracking cameras can help determine the position and orientation of handheld or wearable controllers, which sense their location and orientation by measuring the magnetic fields generated by coils 2.2-54. Thus, the use of tracking cameras can help track hand and controller movements used in moving pointers and other virtual objects displayed to the user and otherwise assist in controlling the operation of device 2.2-10.

[0888] The tracking camera may operate satisfactorily in the presence of sufficient ambient light (e.g., bright visible ambient lighting conditions). In dimly lit environments, supplemental lighting may be provided by supplemental light sources, such as supplemental infrared light sources (e.g., optical components 2.2-82 and 2.2-84). The infrared light sources may each include one or more light emitting devices (light emitting diodes or lasers), each configured to provide a fixed and / or steerable beam of infrared light that functions as supplemental lighting for the tracking camera. If desired, the infrared light sources may be turned off in bright ambient lighting conditions (e.g., using the ambient light sensing capabilities of optical component 2.2-62) and turned on in response to detection of dim ambient lighting.

[0889] The three-dimensional sensors in device 2.2-10 may be used to perform biometric identification operations (e.g., facial identification for authentication), to determine the three-dimensional shape of objects in the user's environment (e.g., to map the user's environment so that a matching virtual environment can be created for the user), and / or to collect three-dimensional content during operation of device 2.2-10. As an example, optical components 2.2-74 and 2.2-70 may be three-dimensional structured light image sensors. Each three-dimensional structured light image sensor may have one or more light sources that provide structured light (e.g., a dot projector that projects an array of infrared dots onto the environment, a structured light source that generates a grid of lines, or other structured light components that emit structured light). Each of the three-dimensional structured light image sensors may also include a flood illuminator (e.g., a light emitting diode or laser that emits a wide beam of infrared light). Using flood and structured illumination, optical components 2.2-74 and 2.2-70 can capture facial images, images of objects in the environment surrounding device 2.2-10, and the like.

[0890] Optical component 2.2-72 may be an infrared three-dimensional time-of-flight camera that uses time-of-flight measurements on emitted light to collect three-dimensional images of objects in the environment surrounding device 2.2-10. Component 2.2-72 may have a longer range and a narrower field of view than the three-dimensional structured light cameras of optical components 2.2-74 and 2.2-70. The operating range of component 2.2-72 may be (by way of example) 30 cm to 7 m, 60 cm to 6 m, 70 cm to 5 m, or other suitable operating range.

[0891] FIG. 2.2-4 is a top view of device 2.2-10 in an exemplary configuration in which display 2.2-14F and main housing portion 2.2-26M are configured to curve along the curved surface of a user's face (curved facial surface 2.2-30). In particular, rear surface 2.2-96 of housing portion 2.2-26M on the rear side R of device 2.2-10 can have a curved shape bent about axis 2.2-98 (e.g., an axis parallel to the vertical Z axis in the example of FIG. 2.2-4). By smoothly wrapping housing portion 2.2-26M around the curved surface of a user's head, comfort when wearing device 2.2-10 can be enhanced.

[0892] As shown in Figure 2.2-4, display 2.2-14F and other structures on the front of device 2.2-10 can have a protective cover layer such as display cover layer 2.2-92 (e.g., the front portion of housing portion 2.2-26M, which may also be referred to as a front housing wall, a transparent dielectric housing wall, or a dielectric housing member). In some embodiments, display cover layer 2.2-92 can include areas characterized by curved surfaces that can be flattened to a plane without distortion (sometimes referred to as developable surfaces or curved surfaces without compound curvature). Display cover layer 2.2-92 can also include areas characterized by compound curvature (e.g., surfaces that can only be flattened to a plane with distortion, sometimes referred to as non-developable surfaces).

[0893] In the active area AA of the display 2.2-14F, the cover layer 2.2-92 overlies the array of pixels P in the display panel 2.2-14P. In the inactive area IA, the cover layer 2.2-92 does not overlie any pixels, but may overlie optical components such as those shown in FIG. 2.2-3. To help reduce the size and weight of the device 2.2-10, the display 2.2-14F can have a curved shape that wraps around the front of the user's head, parallel to the face 2.2-30 and parallel to the curved rear surface 2.2-96 of the housing portion 2.2-26M. For example, the display panel 2.2-14P can have a flexible substrate that allows the panel 2.2-14P to bend about a bending axis 2.2-94 (e.g., a bending axis parallel to the Z axis in the example of FIG. 2.2-4). In the active area AA of the display 2.2-14F, the display cover layer 2.2-92 can have an inner surface with a curved cross-sectional profile that matches the curved display panel 2.2-14P, and a correspondingly curved outer surface. In the inactive area IA, the display cover layer 2.2-92 can also be curved (e.g., with a tighter bend radius and greater curvature than in the active area AA). Optionally, a polymer layer (sometimes called a shroud or polymer member) can be interposed between the display cover layer 2.2-92 and the display panel 2.2-14P. The polymer layer can be separated from the pixels of the panel 2.2-14P by an air gap, and can be separated from the inner surface of the display cover layer 2.2-92 by an air gap (as one example).

[0894] Figure 2.2-5A is a cross-sectional side view of display 2.2-14F as viewed in the X direction. As shown in Figure 2.2-5A, the cross-sectional profile of display panel 2.2-14P (in a plane parallel to the YZ plane) may be straight rather than curved in an exemplary configuration. This can help prevent wrinkles or other distortions to the flexible substrate material of display panel 2.2-14P as it bends about bending axis 2.2-94 to wrap around the curved surface of a user's face. Display panel 2.2-14P, in this example, may have a developable surface (e.g., a surface that has a curved cross-sectional profile but does not have any compound curvature). Panel 2.2-14P in Figure 2.2-5A may be attached (e.g., with an adhesive) to the inner surface of layer 2.2-92. In this scenario, the inner surface of layer 2.2-92 may be a developable surface that mates with the outwardly facing developable surface of panel 2.2-14P. The corresponding outer surface of layer 2.2-92 in active area AA may be a developable surface or a surface of compound curvature. In inactive area IA, layer 2.2-92 may have an inner and / or outer surface of compound curvature and / or the inner and / or outer surface may be developable. Optionally, the entire outer surface of layer 2.2-92 may have a compound curvature (in both active area AA and inactive area IA), and the inner surface of layer 2.2-92 in active area AA may be a developable surface to which panel 2.2-14P is adhesively laminated, while the inner surface of layer 2.2-92 in inactive area IA may have a compound curvature and / or be developable.

[0895] Another exemplary configuration of display 2.2-14F is shown in Figure 2.2-5B. As shown in the cross-sectional side view of Figure 2.2-5B, display cover layer 2.2-92 can have a curved cross-sectional profile throughout the entire layer 2.2-92, if desired. In this type of configuration, the surface of the inactive area IA of display cover layer 2.2-92 can have a compound curvature, and the active area AA of display cover layer 2.2-92 can have a compound curvature (e.g., layer 2.2-92 can be free of any areas with a developable surface). A polymer layer, such as polymer layer 2.2-130, sometimes referred to as a shroud or shroud canopy, can be interposed between the inner surface of display cover layer 2.2-92 and the opposing outer surface of display panel 2.2-14P. The outer surface of display panel 2.2-14P can be developable (e.g., display panel 2.2-14P can be bent about axis 2.2-94). In the active area AA, where the polymer layer 2.2-130 overlaps a pixel of the panel 2.2-14P, the polymer layer 2.2-130 may also be curved about the axis 2.2-94 (e.g., the inner and outer surfaces of the polymer layer 2.2-130 in the active area AA may be developable). In the inactive area IA, the inner and outer surfaces of the polymer layer 2.2-130 may have a compound curvature. An air gap may separate the panel 2.2-14P from the inner surface of the layer 2.2-130 and the outer surface of the layer 2.2-130 from the inner surface of the layer 2.2-92.

[0896] Other configurations of layer 2.2-130 may be used if desired. For example, the side of layer 2.2-130 facing display panel 2.2-14P may have a developable surface in active area AA, while the side of layer 2.2-130 facing layer 2.2-92 may have a compound curvature in active area AA (e.g., layer 2.2-130 may have a non-uniform thickness). Layer 2.2-92 may also have a different configuration. For example, the outer surface of layer 2.2-92 may have a compound curvature, while the inner surface of layer 2.2-92 in active area AA and / or area IA may be developable. Other configurations in which layer 2.2-92 and / or layer 2.2-130 have variable thicknesses may also be used. In inactive area IA, multiple polymer structures may be bonded. For example, in area IA, a ring-shaped polymeric member, sometimes referred to as shroud trim, may be bonded to layer 2.2-130, which may form a shroud canopy member that extends across the entire front surface of device 2.2-10. The shroud trim and shroud canopy may also be referred to individually or collectively as forming a shroud, shroud member(s), etc., as desired. Tinting (e.g., dyes, pigments, and / or other colorants) may be included in layer 2.2-130. For example, layer 2.2-130 may be tinted to exhibit 30-80% visible light transmittance to help obscure the internal structure of device 2.2-10, such as display panel 2.2-14P, from view when not in use.

[0897] Figure 2.2-6 is a front view of a portion of the display 2.2-14F and the display cover layer 2.2-92. The inner and outer surfaces of the display cover layer 2.2-92 that directly overlie the active area AA and the display panel 2.2-14P may be developable and / or include areas of compound curvature. In an exemplary configuration, the inner surface of the cover layer 2.2-92 in area AA can bend about the bending axis 2.2-94 without exhibiting curvature about any axis orthogonal to the axis 2.2-94, as described in connection with Figures 4 and 5A. The outer surface of the layer 2.2-92 in area AA may be a developable surface or a surface of compound curvature. The use of a developable surface on the inward-facing side of display cover layer 2.2-92 (and, if necessary, on the inward-facing side of optional layer 2.2-130 of FIG. 2.2-5B) can help ensure that display panel 2.2-14P does not wrinkle or otherwise become damaged while bending panel 2.2-14P to form a curved display shape that conforms to the shape of the user's head.

[0898] Display panel 2.2-14P can have an outwardly facing surface that is a developable surface within active area AA. This display panel surface may be adhered to the corresponding inner developable surface of layer 2.2-130 or the corresponding inner developable surface of layer 2.2-92, or may be separated from the inner surfaces of layer 2.2-130 and / or layer 2.2-92 by an air gap (for example).

[0899] Some or all of the inner and outer surfaces of the display cover layer 2.2-92 in the inactive area IA can be characterized by a compound curvature, if desired. This allows for a smooth transition of the perimeter of the display 2.2-14F away from the active area, providing an attractive appearance and a compact shape for the device 2.2-10. The compound curvature of the display cover layer 2.2-92 in the inactive area IA can also facilitate the placement of optical components in a desired orientation below the inactive area IA. If desired, all areas of the layer 2.2-92 can have a compound curvature (e.g., the inner and outer surfaces of the layer 2.2-92 can have a compound curvature in both areas IA and AA).

[0900] In the exemplary configuration of FIG. 2.2-6, in which the display cover layer 2.2-92 has a curved periphery and the inward-facing and outward-facing surfaces of the display cover layer 2.2-92 have a compound curvature in the non-active area IA, the cross-sectional profile of the display cover layer 2.2-92 along each of the exemplary lines 2.2-100 in FIG. 2.2-6 is curved (e.g., the entire peripheral ring-shaped non-active area of ​​the display 2.2-14F in the example of FIG. 2.2-6 is covered by a portion of the display cover layer 2.2-92 having inner and outer surfaces of compound curvature). This type of shape for the display cover layer 2.2-92 can be produced by glass forming, polymer molding, machining, and / or other display cover layer fabrication techniques. Other configurations (e.g., configurations in which the display cover layer 2.2-92 has at least some developable surfaces (inner and / or outer surfaces) in the non-active area IA) can also be used. The configuration of FIG. 2.2-6 is exemplary.

[0901] Figures 2.2-7, 2.2-8, and 2.2-9 are front views of an exemplary upper left portion of display cover layer 2.2-92. Device 2.2-10 can have a symmetrical right cover layer portion. The example of Figure 2.2-7 shows how the perimeter of display cover layer 2.2-92 can have straight edges (e.g., a generally rectangular shape with straight edges) and rounded corners. In the example of Figure 2.2-8, display cover layer 2.2-92 has a teardrop shape on the upper left and right sides. Figure 2.2-9 shows how the upper corners of display cover layer 2.2-92 can have sweeping curves (e.g., to help soften the appearance of device 2.2-10 when viewed from the front).

[0902] Figures 10, 11, and 12 are front views of an exemplary lower left portion of a display cover layer 2.2-92. As shown in Figure 2.2-10, the lower half of the cover layer 2.2-92 can be characterized by a rectangular shape with rounded corners. The cover layer 2.2-92 of Figure 2.2-10 can have an upper portion having (by way of example) the type of shape shown in Figure 2.2-7. In the nose bridge portion of the device 2.2-10, the cover layer 2.2-92 can have a concave, curved nose bridge edge shape (see, e.g., curved edge surface 2.2-90). In the exemplary configuration of Figure 2.2-11, the display cover layer 2.2-92 has lower left and right sides that have a teardrop shape (e.g., a shape that can be used with display cover layers having upper left and upper right teardrop shapes of the type shown in Figure 2.2-8). Figure 2.2-12 shows how the lower portion of the display cover layer 2.2-92 can have a more gently curved profile.

[0903] In general, the upper and lower portions of the cover layer 2.2-92 may have any suitable contour when viewed from the front of the device 2.2-10. The shape used for the cover layer 2.2-92 may be determined by factors such as aesthetics, size, ability to facilitate proper placement of optical components within the inactive area IA, and ability to provide desired active area coverage (overlap over the active area AA). Any of the exemplary shapes for the upper portion of the device 2.2-10 shown in Figures 7, 8, and / or 9 may be used in combination with any of the exemplary shapes for the lower portion of the device 2.2-10 shown in Figures 10, 11, and 12. The overall shape of the cover layer 2.2-92 may be symmetrical about the nose bridge (e.g., the left and right halves of the layer 2.2-92 may exhibit mirror symmetry). The shapes in Figures 7, 8, 9, 10, 11, and 12 are exemplary. Other shapes may be used as desired.

[0904] Figure 2.2-13 is an exploded cross-sectional top view of a portion of device 2.2-10 showing how display cover layer 2.2-92 may have a portion that overlaps display panel 2.2-14P and a portion that overlaps a cosmetic cover structure such as shroud 2.2-130 (e.g., a ring-shaped shroud portion, sometimes referred to as shroud trim or shroud trim member, which may optionally be attached to a shroud canopy covering display 2.2-14F, such as optional polymer layer 2.2-130, in area IA). The cosmetic cover structure in non-active area IA may be formed from opaque masking layers (e.g., black ink layers) and / or other coatings on the interior surface of display cover layer 2.2-92 and / or on the shroud, from separate structures formed from metal, polymer, glass, or other materials, and / or from other structures that can help hide the overlapping components 2.2-104. Components 2.2-104 can include sensors 16 and other input / output devices 2.2-22 of FIG. 2.2-2. For example, components 2.2-104 can be optical components such as components 2.2-60, 2.2-62, 2.2-64, 2.2-84, 2.2-66, 2.2-68, 2.2-70, 2.2-72, 2.2-74, 2.2-76, 2.2-78, 2.2-82, and 2.2-80 of FIG. 2.2-3. In the inactive area IA, cover layer 2.2-92 can have curved inner and outer surfaces (e.g., surfaces with compound curvatures). Shroud 2.2-102 (and, optionally, layer 2.2-130 in area IA) can optionally have corresponding inner and outer surfaces (e.g., surfaces with compound curvatures). Components 2.2-104 can operate through optical component windows in shroud 2.2-102 (and optionally in layer 2.2-130 in area IA) and corresponding areas in layer 2.2-92.These windows may be formed by recesses and / or through-hole openings in shroud 2.2-102 (and optionally layer 2.2-130) and / or layer 2.2-92, by window members installed in openings in shroud 2.2-102 (and optionally layer 2.2-130) and / or layer 2.2-92, by portions of shroud 2.2-102 (and optionally layer 2.2-130) and / or layer 2.2-92 that exhibit sufficient optical transparency for satisfactory operation of the overlapping components, and / or by other structure within shroud 2.2-102 (and optionally layer 2.2-130) and / or window 2.2-92.

[0905] Optionally, component 2.2-104 can include components such as cameras (e.g., visible and / or infrared imaging sensors, time-of-flight sensors, structured light 3D sensors, etc.) that sense optical distortions caused by the curved inner and / or outer surfaces of cover layer 2.2-92. For example, a camera or other optical component 104 can operate through a portion of cover layer 2.2-92 in inactive area IA that is characterized by an outer surface having a compound curvature and an inner or expandable inner surface having a compound curvature. In this type of situation, control circuitry of device 2.2-10 can be configured to digitally compensate for optical distortions introduced as light (e.g., light of a real-world image) passes through layer 2.2-92 to a camera or other optical sensor. As an example, the amount of image distortion (e.g., stretching, shifting, keystoning, barrel distortion, pincushion distortion, and / or other optical distortions) introduced by layer 2.2-92 can be measured and characterized for each optical component operating through layer 2.2-92 (e.g., through a portion of layer 2.2-92 in inactive area IA having inner and / or outer surfaces of compound curvature). During operation of device 2.2-10, image data captured by a camera and / or other sensor data gathered by optical components overlaid with layer 2.2-92 can be compensated accordingly (e.g., an equal and opposite amount of digital image warping can be applied to the captured image data, thereby eliminating the known distorting effects of layer 2.2-92). In this way, high-quality (undistorted) image and / or other sensor data can be collected by a camera and / or other optical components operating through the curved portion of layer 2.2-92. This allows layer 2.2-92 to have an attractive shape (e.g., a shape having one or more surfaces characterized by compound curvature).

[0906] When assembled into device 2.2-10, display cover layer 2.2-92 and shroud 2.2-102 (and optionally layer 2.2-130) can be attached to exposed edge portions of a polymer housing structure, metal housing wall, or other housing structure within main housing portion 2.2-26M. As an example, main housing portion 2.2-26M can have a polymer sidewall member that extends around the periphery of display cover layer 2.2-92 and supports the peripheral edge of display cover layer 2.2-92. Shroud 2.2-102 can have a ring shape that extends along the edge of display cover layer 2.2-92 in the inactive area IA. In an exemplary configuration, adhesive is used to attach display cover layer 2.2-92 to shroud 2.2-102 (and / or layer 2.2-130), and adhesive is used to attach shroud 2.2-102 (and / or layer 2.2-130) to the exposed leading edge of the sidewall of main housing portion 2.2-26M. Component 2.2-104 may be attached to shroud 2.2-102 (and / or layer 2.2-130) and / or supported on an internal housing structure (e.g., bracket, frame member, etc.) aligned with the optical window in shroud 2.2-102 (and / or layer 2.2-130) and the corresponding portion of layer 2.2-92.

[0907] FIG. 2.2-14 is a side cross-sectional view of a portion of display 2.2-14F. In the example of FIG. 2.2-14, display panel 2.2-14P is a three-dimensional display panel having an array of pixels P overlaid with lenticular lenses 2.2-106 (e.g., display panel 2.2-14P is an autostereoscopic display that produces a naked-eye three-dimensional image for an observer such as observer 2.2-50 in FIG. 2.2-1). Lenses 2.2-106 may, by way of example, be formed from semi-cylindrical lens elements elongated along the columns of pixels (e.g., lens elements extending parallel to the Z dimension in the example of FIG. 2.2-14). If desired, lenses 2.2-106 may be omitted (e.g., display panel 2.2-14P could have an array of pixels P not overlaid with lenses 2.2-106 to form a two-dimensional display).

[0908] An air gap, such as gap 2.2-114, can separate display panel 2.2-14P of display 2.2-14F from display cover layer 2.2-92. Optional layer 2.2-130 can be formed within gap 2.2-114 of FIG. 2.2-14, such that layer 2.2-130 has an outer surface separated from layer 2.2-92 by a first air gap and an opposing inner surface separated from lens 2.2-106 and pixel P of display panel 2.2-14P by a second air gap. In configurations in which lens 2.2-106 is present, air gap 2.2-114 (and the resulting absence of direct contact between the inner surface of layer 2.2-130 and lens 2.2-106) can allow lens 2.2-106 to operate satisfactorily. Display cover layer 2.2-92 and optional layer 2.2-130 may be formed from glass, polymer, transparent materials such as transparent ceramic, crystalline materials such as sapphire, one or more sublayers of these materials, and / or other materials laminated together (e.g., using an adhesive, etc.) A configuration in which layer 2.2-92 is a glass layer and layer 2.2-130 is a polymer layer may be described herein as an example.

[0909] Coatings may be provided on one or more of the layers within display cover layer 2.2-92. As shown in the exemplary configuration of Figure 2.2-14, display cover layer 2.2-92 may include, for example, a layer such as layer 2.2-108 formed from one or more sublayers (e.g., glass and / or polymer layer(s)), a polymer layer that helps provide layer 2.2-92 with safety glass functionality (see, for example, exemplary polymer film 112 attached to the inner surface of glass layer 2.2-108 to form a laminated glass layer), and coating 2.2-110 on the front (outward-facing) surface of layer 2.2-92 (e.g., the outer surface of glass layer 2.2-108). Coating 2.2-110 may be, for example, an anti-reflective coating formed from one or more inorganic dielectric layers and / or other layers having thicknesses and refractive index values ​​selected to minimize visible light reflection from the outermost surface of layer 2.2-92 and help maintain the desired appearance of layer 2.2-92 (e.g., a neutral color tint). Optionally, the display panel 2.2-14P may be a touch-sensitive display (e.g., a display overlaid with or incorporating capacitive touch sensor circuitry). In configurations where the display 2.2-14F is touch-sensitive, the outermost surface of layer 2.2-92 may be coated with an oleophobic coating layer (e.g., a fluoropolymer layer).

[0910] To help strengthen layer 2.2-92, layer 2.2-108 may be formed from chemically strengthened glass (e.g., a glass layer treated in an ion exchange bath to place the outer surface of the glass layer under compression against the interior of the glass layer). This may help layer 2.2-108 resist scratches and cracks. Layer 2.2-108 may be formed from a single glass layer, a single polymer layer, a stack of two laminated glass layers (e.g., a first glass layer and a second glass layer laminated with a layer of polymer), a stack of two polymer layers, three or more polymer and / or glass layers, etc. Optionally, layer 2.2-108 may be formed from a hybrid stack of layers including one or more glass layers attached to one or more polymer layers. As an example, layer 2.2-92 may include a rigid structural polymer layer covered with a thin glass layer (e.g., a glass layer attached to a structural polymer layer using heat and / or pressure, or a glass layer attached to a structural polymer layer using a layer of polymer adhesive). The thin glass layer in this type of construction can help protect the structural polymer layer from scratches.

[0911] One or more of the structures of layer 2.2-92 (e.g., coating 2.2-110, layer(s) forming layer 2.2-108, layer 2.2-112, optional layer 2.2-130, etc.) may comprise dyes, pigments, or other colorants to produce a desired neutral (e.g., gray or black) or non-neutral (e.g., red) color, as desired. Thin metal coatings, polarizers, and / or other structures may also be incorporated into layer 2.2-92 to help impart desired optical properties to layer 2.2-92 and / or provide a desired appearance to layer 2.2-92.

[0912] Optionally, portions of layer 2.2-92 overlying optical component 2.2-104 and / or other portions of layer 2.2-92 may be provided with coatings to help prevent scratches that could adversely affect the optical quality of component 2.2-104. As shown in FIG. 2.2-15, for example, display cover layer 2.2-92 may have a transparent layer (e.g., one or more layers of polymer, glass, and / or other transparent layers, such as layer 2.2-108 of FIG. 2.2-14), such as transparent layer 2.2-116. Transparent layer 2.2-116 may be covered with one or more coating layers, such as coating layer 2.2-118. Layer 2.2-118 may be a thin film layer formed from an inorganic material (e.g., oxide, nitride, diamond-like carbon, etc.) that helps resist scratches. This type of approach may be used, for example, to ensure that the portion of display cover layer 2.2-92 overlying optical component 2.2-104 does not become cloudy if scratched, when layer 2.2-116 is formed from a material such as a polymer that may be prone to scratching when subjected to excessive friction from sharp external objects. Layer 2.2-118 may also be referred to as a hard coat and may have a higher hardness (e.g., a higher Mohs hardness) than layer 2.2-116. Layer 2.2-118 may be a thin film coating having a thickness of less than 3 microns, less than 2 microns, less than 1 micron, less than 0.5 microns, or other suitable thickness.

[0913] Another method for helping to prevent unwanted scratches on the surface of display cover layer 2.2-92 where layer 2.2-92 overlies optical component 2.2-104 is shown in the cross-sectional side view of display cover layer 2.2-92 in FIG. 2.2-16. As this example illustrates, the outer surface of display cover layer 2.2-92 may be provided with a recess, such as recess 2.2-120 (e.g., a shallow circular depression, or a depression having a rectangular or other footprint). This positions the recessed display cover layer surface 2.2-124 of recess 2.2-120 below the peripheral outer surface 2.2-122 of layer 2.2-92. When device 2.2-10 is placed on a tabletop or other surface, the non-recessed portion of layer 2.2-92's surface (exterior surface 122) will contact the tabletop surface, thereby helping to prevent the tabletop surface from contacting the recessed surface of layer 2.2-92's surface (surface 2.2-124). As a result, the concave surface 2.2-124 that overlaps the component 104 remains scratch-free. Thus, even if the layer 2.2-92 is subjected to excessive wear, hazing generally does not occur in the area of ​​the layer 2.2-92 that overlaps the component 104.

[0914] Layer 2.2-92 can be formed from a material having optical properties matching those of the overlaid optical component 2.2-104. For example, if the optical component overlaid with a portion of layer 2.2-92 in the inactive area IA is configured to operate at visible and infrared wavelengths, that portion of layer 2.2-92 can be sufficiently visible and infrared transmissive to allow the overlaid component to operate satisfactorily at visible and infrared wavelengths. In configurations where the material from the bulk of layer 2.2-92 does not have the desired optical properties for the optical component, an optical component window member (e.g., a disk of window material such as infrared-transparent glass, and optionally a disk of visible-light-transparent glass, or other inserted window member) can be mounted within an opening in layer 2.2-92 overlying the optical component.

[0915] As an example, consider a configuration in which layer 2.2-92 is transparent to visible light but has low transmittance at infrared wavelengths. Optical components in this type of configuration may operate at infrared wavelengths. To ensure that the optical components can transmit and / or receive infrared light through layer 2.2-92, layer 2.2-92 may be provided with a through-hole opening and an infrared-transparent optical component window member, such as an infrared-transparent disk. The infrared-transparent window member may be formed from a material different from the material forming layer 2.2-92 and may be attached within the through-hole opening of layer 2.2-92. This type of configuration is shown in the side cross-sectional view of Figure 2.2-17, in which display cover layer 2.2-92 is provided with an optical component window member 2.2-92W within the through-hole opening in layer 2.2-92. Element 2.2-92W may be a glass optical component window element that is transparent to infrared light (and optionally transparent to visible light), although the surrounding portion of layer 2.2-92 may be formed from a different material (e.g., a polymer, a different glass material, etc.). By providing an infrared-transparent window in layer 2.2-92, an infrared optical component (e.g., optical component 2.2-102 in FIG. 2.2-17) can transmit and / or receive infrared light through display cover layer 2.2-92 (e.g., through a window in the display cover layer) even if layer 2.2-92 is formed from a material that is not infrared-transparent. This approach can be used to provide an optical component window that has any suitable optical properties (e.g., a desired amount of opacity, light transmittance, reflectance, absorptance, and / or haze level, desired polarization characteristics, etc.) that differ from the remainder of layer 2.2-92. 2.3: Systems with supplemental lighting

[0916] Figure 2.3-1 is a side cross-sectional view of a head-mounted device in an exemplary configuration in which the device includes a lighting system for providing ambient lighting. The head-mounted device 2.3-10 of Figure 2.3-1 may have optical sensors. These sensors may include a camera. The camera of device 2.3-10 may have a lens and an image sensor configured to capture images at ultraviolet, visible, and / or infrared wavelengths.

[0917] Some cameras (e.g., a type of camera sometimes referred to as a scene camera) may be used to capture images of the user's environment that are displayed in real time on the display 2.3-14 (e.g., real-time pass-through video). Cameras within the device 2.3-10 may also be used in tracking the position and movement of external objects. As an example, a tracking camera may track the user's hand (e.g., see Hand 2.3-30H) or the user's torso or other body part (e.g., see User Body Part 2.3-30B). Hand gesture input, as an example, may be used in controlling the operation of the device 2.3-10. Body part monitoring may be used to enable the user's body movements to be replicated by content displayed within the virtual environment. Optionally, cameras may be used in tracking the position of external accessories (e.g., the position and movement of a controller moved by the user to control the device 2.3-10). In some scenarios, a visual inertial odometry (VIO) system or other system that determines the position, movement, and / or orientation of device 2.3-10 relative to the environment surrounded by device 2.3-10 may be formed by combining data from one or more cameras in device 2.3-10 with additional sensor data (e.g., data from an inertial measurement unit). A camera may perform dedicated functions (such as tracking, visual inertial odometry functions, scene capture, ranging, face recognition, and 3D image capture for environment mapping), or two or more of these operations may be performed by a shared camera.

[0918] It may be desirable to allow a user of device 2.3-10 to operate device 2.3-10 in low lighting conditions. As an example, the user may be viewing content on display 14 while in a dark room or inside a dark vehicle. To ensure that camera tracking functions, such as hand tracking, body tracking, accessory tracking, and optionally other camera-based functions (e.g., visual inertial odometry, etc.), can be performed satisfactorily, device 2.3-10 may provide supplemental lighting. Supplemental lighting may be provided by a light source that generates supplemental ultraviolet, visible, and / or infrared light to enhance any available ambient light. In an exemplary configuration, supplemental lighting is provided at infrared wavelengths because this light is detectable by tracking cameras or other cameras with infrared-sensing capabilities and is invisible to the human eye. Because the supplemental infrared lighting is invisible, people near the user of device 2.3-10 (e.g., people in the same room or vehicle as the user) are not disturbed by the presence of the supplemental lighting.

[0919] Any suitable light source may be used in forming the supplemental lighting system for device 2.3-10 (e.g., light emitting dies, lasers, etc.). In an exemplary configuration, these light emitting devices are laser diodes or light emitting diodes that emit infrared light at a wavelength of 940 nm or other infrared wavelengths (e.g., one or more wavelengths of 740-1500 nm, at least 800 nm, 940 nm, at least 900 nm, 800-1200 nm, 900-1000 nm, 750-1100 nm, 800-1100 nm, less than 1500 nm, etc.). There may be N cameras using supplemental lighting in device 2.3-10 and M supplemental light sources. The values ​​of N and M may be 1-10, at least 2, at least 3, at least 4, at least 6, at least 8, 2-10, 4-6, 2-4, less than 10, less than 5, less than 4, or other suitable numbers. The value of N may be greater than the value of M, the value of N may be equal to the value of M, or the value of N may be less than the value of M. As an example, there may be four cameras using supplemental infrared illumination, and there may be two light sources that emit supplemental illumination.

[0920] A camera using supplemental infrared illumination can be configured to be sensitive at the wavelengths illuminated by the supplemental lighting system (e.g., infrared light wavelengths associated with the M supplemental light sources). The camera may also be sensitive at visible light wavelengths so that the camera can operate without any supplemental lighting when sufficient visible ambient lighting is present. To help avoid infrared interference during normal ambient lighting conditions, the supplemental lighting system may, by way of example, be configured to emit light in a narrow infrared band (e.g., 940 nm), and the camera may be equipped with a filter that passes visible light but blocks all infrared except for light in the narrow infrared band. In another exemplary configuration, the camera is sensitive across the visible spectrum (e.g., 380-740 nm) and across the infrared spectrum (e.g., 740-1000 nm, or other suitable broader infrared wavelength band in which the infrared supplemental lighting is generated). If desired, a switchable filter can be employed to block infrared light from the camera when supplemental infrared lighting is not being used and to pass infrared light when supplemental infrared lighting is being used.

[0921] As shown in FIG. 2.3-1, the right side of device 2.3-10 may include a first camera, such as camera 2.3-50, facing in a direction such as direction 2.3-54 (e.g., in the -Z direction and slightly in the +Y direction, as an example), and a second camera, such as camera 2.3-52 (sometimes referred to as a front-facing camera), facing in a forward direction such as direction 2.3-56 (e.g., in the +Y direction and slightly in the -Z direction, as an example). The left side of device 2.3-10 may have a corresponding pair of cameras oriented in a similar manner. The angles of view of the left and right cameras may be configured to overlap in front of device 2.3-10, resulting in no gaps in coverage in front of the user. If desired, cameras 2.3-50 and 2.3-52 may be replaced by a single camera (e.g., a camera at the position of camera 2.3-52, a camera at the position of camera 2.3-50, or another suitable forward-facing and / or downward-facing camera that captures images while looking outward from a location on the front side F of device 2.3-10). For example, there may be a single tracking camera (e.g., camera 2.3-52) on the right side of device 2.3-10 and a corresponding single tracking camera on the left side of device 2.3-10.

[0922] Regardless of the number of tracking cameras provided on each side of device 2.3-10, there may be a right-side infrared light source, such as light source 2.3-58, that provides supplemental lighting (infrared light) in direction 2.3-60 to illuminate objects such as hand 2.3-30H, body 2.3-30B, and other external objects for the tracking camera(s) on the right side of device 2.3-10, and there may be a corresponding left-side infrared light source that provides supplemental infrared light for the tracking camera(s) on the left side of device 2.3-10. Using a single supplemental infrared light source on each side of device 2.3-10 to provide supplemental lighting for the tracking camera(s) on that side of device 2.3-10 may help conserve space within the tight confines of housing 2.3-26.

[0923] The auxiliary lighting system of Device 2.3-10 can provide infrared illumination to an area (angular range) larger than the area (angular range) covered by the tracking camera(s) of Device 2.3-10, an area equal to the area covered by the camera(s), or an area (angular range) smaller than the area covered by the camera(s).

[0924] As an example, consider the coverage of the auxiliary lighting system of device 2.3-10 of Figure 2.3-1 in the YZ plane. As shown in the side view of Figure 2.3-1, downward-facing camera 2.3-50 may be characterized by an angle of view A1 in the YZ plane, and forward-facing camera 2.3-52 may be characterized by an angle of view A3 in the YZ plane. These angles of view may overlap to provide continuous tracking coverage in the YZ plane. If desired, a single tracking camera can be used to provide the same amount of coverage in the YZ plane, or another appropriate amount of coverage. The example in Figure 2.3-1 is illustrative.

[0925] The supplemental lighting from light source 2.3-58 can be characterized by an illumination angle A2 in the YZ plane. The value of A2 may be greater than, equal to, or less than the combined angle of view of cameras 2.3-50 and 2.3-52, or greater than, equal to, or less than the angle of view of a single tracking camera being used in place of cameras 2.3-50 and 2.3-52. In an exemplary configuration, A2 is less than the overall angle of view of the tracking camera(s) and is directed outward, forward and downward, in front of device 2.3-10 (where hand and body tracking is most likely to occur). The use of a somewhat reduced illumination area for the supplemental lighting system (e.g., an illumination area smaller than the area covered by the tracking camera system) can help conserve power when operating for extended periods in dark operating environments, while retaining the ability to track objects in all areas except the peripheral area.

[0926] FIG. 2.3-2 is a top view of device 2.3-10, showing how device 2.3-10 may include cameras on both the left and right sides of support structure 2.3-26. The center of housing portion 2.3-26M may include nose bridge portion 2.3-26NB. Nose bridge portion 2.3-26NM may have a lower edge with a curved shape configured to rest on a user's nose while device 2.3-10 is worn on the user's face. Nose bridge portion 2.3-26NB may connect right housing portion 2.3-26R to left housing portion 2.3-26L. Optical components 2.3-62 may include side-facing visible light cameras, forward-facing visible light cameras, time-of-flight cameras (e.g., time-of-flight sensors in forward-facing nose bridge portion 2.3-26NM), three-dimensional structured light cameras (e.g., left and right structured light cameras adjacent nose bridge portion 2.3-26NB), flicker sensors for detecting ambient light fluctuations (e.g., 60 Hz fluctuations associated with indoor artificial lighting), ambient light sensors, etc.

[0927] A right camera 2.3-52 may be supported in the right housing portion 2.3-26R, and a corresponding left camera 2.3-52' may be supported in the left housing portion 2.3-26L. Similarly, an optional additional right camera, such as camera 2.3-50 of FIG. 2.3-1, may be supported in the right housing portion 2.3-26R, and a corresponding optional additional left camera may be supported in the left housing portion 2.3-26L. In this type of configuration, supplemental lighting for the single right tracking camera or pair of right tracking cameras may be provided by a right auxiliary light source 2.3-58, and supplemental lighting for the left camera(s) may be provided by a left auxiliary light source 2.3-58'.

[0928] During supplemental lighting operation, light sources 2.3-58 and 2.3-58' generate supplemental lighting in directions 2.3-60 and 2.3-60', respectively. As discussed in connection with the relative coverage areas of the cameras and light sources in Figure 2.3-1, the lighting coverage area of ​​the supplemental lighting system need not exactly match the coverage area of ​​the cameras. For example, the tracking camera on each side of device 2.3-10 may be characterized by a larger angle of view in the XY plane than the angle of coverage of the associated light source. Configurations in which illumination from the supplemental light sources on each side of device 2.3-10 is provided over the same angular range as the camera's angle of view, or in which illumination is provided over a wider angular range than the camera's angle of view, can also be used.

[0929] Supplemental lighting may be provided over a relatively large, fixed area in a global manner, or desired areas may be covered by activating or moving narrower beams of lighting toward or across the desired area. If desired, a dynamic lighting system with steerable or addressable beams of supplemental lighting may steer or activate the lighting beam so that the beam follows a user's hand or other object of interest. In this way, power is not unnecessarily consumed illuminating areas that do not contain the object to be tracked.

[0930] Figures 2.3-5 and 2.3-6 are side views of an exemplary fixed-area supplemental lighting source. The exemplary light source 2.3-58 in Figure 2.3-3 includes a semiconductor light-emitting device 2.3-70. The device 2.3-70 may be a solid-state light-emitting device such as a light-emitting diode, a superluminescent light-emitting diode, a resonant-cavity light-emitting diode, an edge-emitting light-emitting diode, or a vertical-cavity surface-emitting diode, or may be a diode-pumped laser such as a diode-pumped fiber laser or other diode-pumped laser. As shown in Figure 2.3-3, the device 2.3-70 may be mounted (e.g., using solder) on an optional interposer 2.3-72. The interposer 2.3-72 may be mounted to a package substrate 2.3-74 (e.g., a printed circuit). In operation, the device 2.3-70 may emit infrared light that is diffused over the desired illumination area by one or more optical structures overlying the device 2.3-70. In the example of Figure 2.3-3, these optical structures include an optional overmolded polymer lens 3.3-76 and optional secondary optical structures such as a peanut lens 3.3-78. It is also possible to form curved reflective optical structures on the interposer 2.3-76 or substrate 2.3-74 to enhance side and / or rear light collection. Optical structures overlying the device 2.3-70 can be used to shape the light intensity to produce a desired far-field distribution that differs from the native light source intensity distribution (e.g., a light-emitting diode with a Lambertian intensity distribution). If desired, safety-enhancing structures such as resistive or capacitive safety traces may be embedded in or overlay the optics, or a photodetector may be used to form a closed loop with a safety interlock on the light source driver (e.g., in connection with module architectures of the type shown in connection with Figures 2.3-5 through 2.3-8).

[0931] In the exemplary configuration of Figure 2.3-4, a light emitting device 2.3-70 (e.g., a laser) is mounted below a light diffusing structure, such as a beam shaping layer 2.3-82. Layer 2.3-82 may be supported within a light source package 2.3-80. Device 2.3-70 may be mounted within package 2.3-80 on an optional interposer 2.3-72 on a printed circuit or other substrate. In operation, device 2.3-70 of Figure 2.3-4 can emit infrared light upward, diffused laterally by beam shaping layer 2.3-82, to cover a desired illumination area (e.g., + / - 60° or other suitable angular range).

[0932] In general, any suitable optical component that functions as a light-diffusing structure may overlap device 2.3-70 in Figures 2.3-5 and 2.3-6. These optical components may include refractive beam-shaping optical components, diffractive optics, diffusive optics, optical nanostructures (e.g., thin two-dimensional metamaterial layers such as patterned structures of transparent dielectrics with subwavelength dimensions that form metasurfaces configured to broaden the emitted beam), curved reflectors, and other optical components. Multiple devices 2.3-70 may be mounted in a common package, and / or multiple packaged devices 2.3-70 may be mounted on a printed circuit adjacent to one another when forming light source 2.3-58. The use of a single light-emitting device 2.3-70 in forming light source 58 in the examples of Figures 2.3-5 and 2.3-6 is exemplary.

[0933] Figures 2.3-7 and 2.3-8 are side views of an exemplary dynamic pattern illuminator that may be used in an illumination system for device 2.3-10. Using light sources of the type shown in Figures 2.3-7 and 2.3-8, control circuitry 2.3-12 can selectively activate or steer the emitted beams of infrared light so as to provide targeted auxiliary illumination to one or more target objects.

[0934] In the example of Figure 2.3-5, the light source 2.3-58 has an array of light-emitting devices 2.3-70. The devices 2.3-70 may include multiple semiconductor dies mounted on a substrate, such as a printed circuit 2.3-84 in a package 2.3-86, may include multiple individually addressable emitters, or may include multiple individually addressable segments of emitters mounted on a substrate, such as silicon, ceramic, a printed circuit board 2.3-84, or other substrate in a package 2.3-86. Other optical components, such as a zoned beam shaper layer or layer 2.3-88, may overlap the device 2.3-70. The layer 2.3-88 may have multiple zones, each with individual beam steering and beam shaping optical structures. These structures may be refractive structures, diffractive structures, nanostructures, etc. Structures on both surfaces of the layer 2.3-88 and / or multiple layers of the layer 2.3-88 with vertically aligned or misaligned zones may be used. Each zone can be used to steer and shape the beam of light emitted from an individual light-emitting device in a different, individual direction. For example, a first zone can direct a beam of light emitted vertically from a first device 2.3-70 to the left, while a second zone can direct a beam of light emitted vertically from a second device 2.3-70 to the right. By overlaying an array of individually controlled devices 70 with a corresponding array of individualized beam-steering structures, each device 2.3-70 can be configured to emit a beam of light in a different, individual direction (see, for example, exemplary beam 2.3-90), providing light source 2.3-58 of Figure 2.3-5 with the ability to emit steered beams of light. The emission area of ​​each beam can overlap with adjacent beams to avoid potential gaps in coverage. The beams 2.3-90 may all be emitted simultaneously, or one or more selected beams 2.3-90 may be emitted at a time. If desired, the beams 2, 3-90 may be emitted sequentially (eg, to scan the beam emitted from the light source 58 over the area of ​​interest).

[0935] Another exemplary light source that may be used in forming a dynamic pattern illuminator for the auxiliary lighting system of Device 2.3-10 is shown in Figure 2.3-6. Light source 2.3-58 of Figure 2.3-6 may include one or more light-emitting devices, such as Device 2.3-70, that emit one or more light beams, such as light beam 2.3-92 (e.g., infrared light beams). Device 2.3-70 may be mounted on a printed circuit or other substrate 2.3-94 within package 2.3-96. Electrically controlled beam steering 2.3-98 may include one or more beam steering elements, such as steerable microelectromechanical systems mirror 2.3-100 or other electrically adjustable beam steering element(s), controlled by control signals from control circuit 2.3-12. When it is desired to emit light in a first direction, mirror 2.3-100 may be positioned in a first orientation that reflects beam 2.3-92 to generate a first emitted beam 2.3-102. If it is desired to emit light in a second direction, mirror 2.3-100 may be positioned at a second orientation different from the first orientation, thereby reflecting beam 2.3-92 to generate second emitted beam 2.3-104. Mirror 2.3-100 may be positioned at any suitable number of different orientations (e.g., at least 2, at least 10, at least 25, at least 100, less than 5000, less than 1000, less than 500, or any other suitable number). Mirror 2.3-100 may be rotated about a single axis (to vary the angle of the emitted light beam along a single dimension) or about two axes (e.g., to arbitrarily change the angle of the emitted light beam in two dimensions). If desired, beam-shaping optics (e.g., beam-collimating lenses, etc.) can be incorporated into beam steering 2.3-98 to help ensure that the steered beam has a desired intensity profile.

[0936] If desired, a hybrid illuminator architecture can be used such that multiple channels of device 2.3-70 or multiple devices 2.3-70 described in connection with FIG. 2.3-5 can be selectively activated to provide one or more additional dimensions of dynamic illumination to beam steering optics such as mirror 2.3-100 in FIG. 2.3-6.

[0937] A light source emitting a static broad beam (see, for example, exemplary light source 2.3-58 in Figures 2.3-5 and 2.3-6) may be configured to emit a light beam of any suitable shape to help provide supplemental illumination for the tracking camera of device 2.3-10. Figure 2.3-7 is a graph illustrating how light source 2.3-58 may be configured to emit a circular beam field of regard (FoG), such as circular beam 2.3-110 (e.g., a beam of infrared light having a full-width half-maximum (FWHM) intensity characterized by an angular spread of + / - 60° or other suitable coverage area), or to emit a rectangular beam FoG, such as rectangular beam 2.3-112, having a similar vertical angular spread and a smaller horizontal angular spread. Two rectangular beams, such as beam 2.3-112, may be generated side-by-side to provide sufficient horizontal illumination coverage for both the left and right cameras in device 2.3-10 (as an example).

[0938] In the most common use cases, the goal of an illumination system is to provide a uniform signal-to-noise ratio for an illuminated scene captured by one or more cameras. Within a desired FWHM 2-D FoG, uniform far-field intensity at each instantaneous FoG (iFoG) can be achieved to provide uniform illumination and operating range for the camera. However, there are cases where a non-uniform far-field intensity distribution is desired. For example, when the illumination target is flat or when camera vignetting is significant, a symmetric "batwing" intensity distribution can be used to compensate for the relative intensity reduction at the camera image sensor. Further examples include asymmetric intensity distributions such as a camera aligned in a non-coaxial orientation relative to the illumination system, a target such as a hand with asymmetric onset / retention across the FoG, multiple illuminators with overlapping FoG, multiple non-coaxial cameras, and irregular occlusions in a particular FoG region.

[0939] The graphs in Figures 2.3-10 and 2.3-11 illustrate exemplary beam outputs (angular beam distributions) associated with dynamically adjustable lighting systems. In the example of Figure 2.3-8, a light source, such as light source 58 of Figure 2.3-5 or light source 58 of Figure 2.3-6, is configured to generate a beam having an elongated rectangular shape (e.g., a rectangle with a horizontal extent greater than its vertical extent). Using beam steering, light source 2.3-58 can emit this elongated rectangular beam at one or more vertical locations, such as exemplary location 2.3-114 in Figure 2.3-8. In a configuration of the type shown in Figure 2.3-5, each light-emitting device 2.3-70 can generate different, individual elongated, rectangular beams, each associated with a different, individual vertical position at the output of light source 2.3-58. One or more of these beams can be emitted simultaneously by turning on one or more respective light-emitting devices 2.3-70. In a configuration of the type shown in Figure 2.3-6, the light emitting device 2.3-70 can generate a beam, such as beam 2.3-92 in Figure 2.3-6, that is steered by beam steering 2.3-98 to a desired location (e.g., exemplary location 2.3-114 in Figure 2.3-8) and / or other locations, thereby providing the desired coverage for the light source 2.3-58.

[0940] In the illustrative example of Figure 2.3-8, light is output over a vertical angular range that is greater than the horizontal range. Additional horizontal coverage can be provided using an additional light source (e.g., a light source on the opposite side of device 2.3-10). In this manner, a desired angular output range (e.g., ±60° in both the horizontal and vertical dimensions, or other suitable angular output range) can be covered.

[0941] In the exemplary configuration of Figure 2.3-9, light source 2.3-58 (e.g., a dynamically configured light source such as light source 58 of Figure 2.3-5 or Figure 2.3-6) is configured to provide a relatively small, circular or square output beam that can be steered both horizontally and vertically to produce the desired amount of overall coverage.

[0942] In both light sources that are static and do not have a steerable beam and light sources that have a dynamically patterned output, the beam power may be controlled in a binary manner (on / off) or in an analog manner (e.g., by adjusting the output power continuously or in steps between more than two different power levels). As shown in Figure 2.3-9, no light may be output in certain portions of the coverage area, such as area 2.3-116 (e.g., beam power may be zero for these areas), full power light may be output in areas such as area 2.3-118 (e.g., beam power may be maximized for these areas), and intermediate power levels may be used when providing output light to other areas, such as area 2.3-120 immediately adjacent to area 2.3-118.

[0943] A configuration in which full-power light is output only in a subset of the total coverage area of ​​light source 58 can help device 2.3-10 use power efficiently. As shown in the diagram of Figure 2.3-9, for example, one or more external objects of interest, such as object 2.3-122, may be present within the coverage area of ​​a given light source. Device 2.3-10 may be tracking a user's hand or other external object, as an example. When these objects are relatively small compared to the overall angle of view of the camera within device 2.3-10, power can be conserved by limiting the output of the auxiliary lighting (or at least limiting the output of the full-power auxiliary lighting) to only the area that overlaps with the tracked external object.

[0944] In the example of Figure 2.3-9, object 2.3-122 (e.g., a user's hand or other body part or other object in the user's environment) is being actively tracked by device 2.3-10. As a result, the supplemental lighting system of device 2.3-10 is being used to provide full power illumination to area 2.3-118 that overlaps object 2.3-122. Elsewhere within the coverage area of ​​light-emitting device 58, beam power is reduced (e.g., see medium power area 2.3-120) or completely blocked (e.g., see unilluminated area 2.3-116). This type of approach may be used either for a scanning beam configuration (e.g., using a scanning mirror device or other beam steering as described in connection with Figure 2.3-6) or for using light sources (e.g., light source 58 of Figure 2.3-5) with an addressable array of devices 70, each capable of providing output in a different direction.

[0945] In areas such as area 2.3-116 in Figure 2.3-9, no supplemental lighting is present, and therefore items within these areas do not receive supplemental lighting. Nevertheless, when an object such as object 2.3-122 is tracked, device 2.3-10 can monitor the position and direction of movement of object 2.3-122 in real time. This allows device 2.3-10 to provide full-power supplemental lighting to areas overlapping object 2.3-122 and intermediate-power (or full-power, if desired) supplemental lighting to portions of light source 58's output area directly adjacent to object 2.3-122 (e.g., areas through which object 2.3-122 may move and / or is predicted to occupy in the near future based on its tracked movement). If object 2.3-122's position moves into one of those adjacent areas, device 2.3-10 can increase the supplemental lighting on those areas to full power and update the beam power so that the adjacent areas again have intermediate-power level coverage.

[0946] While the multi-power level beam scheme of Figure 2.3-9 is described in connection with the two-dimensional scanning light beam from light source 2.3-58 of Figures 7 and 8, such adjustable power output schemes may also be used with light source 2.3-58 that provides a one-dimensional adjustable directional light source (e.g., a light source that generates a slice of supplemental illumination of the type shown in Figure 2.3-8) and / or with a fixed area light source. In a fixed area light source scheme, for example, a right light source 58 of the type shown in Figure 2.3-3 or Figure 2.3-4 may be used to provide supplemental illumination for tracking object 2.3-122 in front of the right camera(s) of device 2.3-10, and a left light source 58 of the type shown in Figure 2.3-3 or Figure 2.3-4 may be used to provide supplemental illumination for tracking object 2.3-122 in front of the left camera(s) of device 2.3-10. The device 2.3-10 can activate either the right light source or the left light source, or both, depending on the current and expected location of the object 2.3-122.

[0947] Another method to help use power efficiently for a supplemental lighting system involves using light source 2.3-58 to generate supplemental lighting only when the camera for which it is provided would benefit from it. For example, in bright lighting conditions, ambient visible light provides sufficient illumination, so the supplemental infrared light beam can be turned off (or at least power reduced to a lower level than would otherwise be used) to help conserve power. Activation of supplemental lighting may occur when dim ambient lighting conditions are detected, or when other appropriate conditions that trigger the generation of supplemental lighting are detected.

[0948] FIG. 2.3-10 is a flowchart of exemplary operations related to the use of electronic device 2.3-10. During the operations of block 2.3-150, device 2.3-10 may be used to provide content, such as visual content, audio content, and other output, to a user. Device 2.3-10 may, by way of example, be worn on the user's head while images are presented for viewing. The operations of block 2.3-150 may be performed while device 2.3-10 is in a normal operating environment with sufficient visible ambient light levels.

[0949] Visual content may be presented for the user on the display 2.3-14. This visual content may include camera images (e.g., pass-through video) and / or other content from a camera within the device 2.3-10. In some scenarios, computer-generated content (sometimes referred to as virtual content) may be overlaid on top of real-world content from a camera within the device 2.3-10. In this type of mixed reality environment, camera data may be used to help track the location of the user's hands and other real-world objects, thereby registering the overlay of virtual content onto the real-world image. For example, by tracking the location of a user's hands, a computer-generated image of a glove may be accurately overlaid on top of the real-world image of the user's hands. By tracking the location of a tabletop, a computer-generated image may be placed on top of the tabletop. Camera data may be used to track the movement of a user's hands, fingers, and / or other body parts in real time. In this way, hand gestures, finger gestures, and / or other body part movements (sometimes called air gestures) that serve as user input can be used in controlling the operation of device 2.3-10 (e.g., in a mixed reality or fully virtual environment).

[0950] Device 2.3-10 may have any suitable number of cameras, including three-dimensional cameras (e.g., structured light cameras, time-of-flight cameras, etc.), cameras for capturing visible light images of the real world (e.g., for video pass-through), and / or cameras that perform tracking operations, function as part of a visual inertial odometry system, and / or otherwise support the operation of Device 2.3-10. The cameras of Device 2.3-10 may face forward, downward, sideways, upward, backward, and / or in multiple directions. Some cameras may operate only in visible wavelengths. Other cameras may operate in visible and infrared wavelengths.

[0951] As described in connection with Figures 3 and 4, device 2.3-10 may, by way of example, have one or more tracking cameras on each side of device 2.3-10. These cameras are sensitive in visible and infrared wavelengths and can be used for tracking operations (e.g., hand and body tracking, air gesture input tracking, accessory tracking), and, optionally, additional functions such as imaging structures in the user's environment for a visual inertial odometry system. The tracking cameras may be sensitive to visible and infrared wavelengths, such as wavelengths from 400-1000 nm, 400-740 nm, and 940 nm, or other suitable visible and infrared wavelengths. The infrared sensitivity of the tracking cameras preferably matches one or more wavelengths emitted by light sources 2.3-58 in the auxiliary lighting system, allowing these cameras to operate when most or all available illumination is provided by light sources 2.3-58 rather than ambient light sources.

[0952] If desired, auxiliary lighting may be provided continuously. As an example, a configuration is described herein in which power is conserved by at least occasionally shutting off power to the auxiliary lighting system. In a configuration of device 2.3-10 in which auxiliary lighting is turned on and off, device 2.3-10 may monitor, during operation of block 2.3-150, for the occurrence of conditions that indicate that auxiliary lighting should be switched on for satisfactory operation of the camera (e.g., tracked camera). These monitoring activities may occur while the camera (e.g., tracked camera) of device 2.3-10 is operating normally without auxiliary lighting from the auxiliary lighting system.

[0953] Any suitable trigger criteria can be used to determine when to activate the auxiliary lighting system by turning on the light source 2.3-58. As an example, the device 2.3-10 may include an ambient light sensor. The ambient light sensor can measure the amount of visible ambient light present in the environment surrounding the device 2.3-10. A threshold or other criteria can be applied to the ambient light readings from the ambient light sensor. In response to determining that the ambient light level is below a predetermined ambient light threshold or is otherwise too dim for satisfactory operation of the tracking camera, the control circuit 12 can turn on the light source 2.3-58 to provide auxiliary lighting (e.g., infrared light).

[0954] Another exemplary criterion that may be used in determining when to activate supplemental lighting includes evaluating an image processing algorithm quality metric. During operation of block 2.3-150, the captured image may be run through one or more image processing algorithms. These algorithms may include, by way of example, a hand tracking algorithm. The hand tracking algorithm may generate a quality factor or other metric that indicates the ability of the hand tracking algorithm to satisfactorily track the user's hand. In response to detecting that the tracking algorithm quality metric is below a desired threshold, control circuitry 12 may turn on light source 2.3-58 to provide supplemental lighting to the camera.

[0955] If desired, the tracking camera or other image sensor hardware may provide information indicating that performance is being adversely affected by low ambient lighting levels. As an example, frames of image data may be evaluated to determine whether lighting levels are low. The output of the tracking camera hardware of device 2.3-10 may also indicate whether the signal-to-noise level is sufficient. If the tracking camera is producing only dark and / or noisy image data, control circuitry 12 may determine that light source 2.3-58 should be turned on.

[0956] In some configurations, the device 2.3-10 may be configured to determine the user's location relative to walls and other obstacles in the user's environment. As an example, the device 2.3-10 may include a map of known wall locations (e.g., a map obtained from an external source or a map based on previous map-building operations performed by the device 2.3-10 as the user wore the device 2.3-10 while walking throughout a building or other environment). Satellite navigation system circuitry (e.g., global positioning system circuitry) can use satellite signals to determine the location of the device 2.3-10 (e.g., the location of the device 2.3-10 relative to building walls and other obstacles). From the user's known location and movement, and using information about the locations of known obstacles such as walls, the device 2.3-10 can predict when the user is likely to approach a wall or other obstacle. Sensors 16 (proximity sensors, time-of-flight sensors, radar, LIDAR, etc.) within the device 2.3-10 may also be used in monitoring the user's movement relative to walls and other obstacles. By using some or all of this information in combination with additional information about the operating environment of the device 2.3-10 (e.g., an ambient light reading indicating dim ambient lighting), the device 2.3-10 can determine when the light source 2.3-58 should be turned on to provide supplemental lighting to help ensure the tracking camera of the device 2.3-10 operates satisfactorily. This can help ensure that the camera of the device 2.3-10 can use the infrared illumination of the light source 2.3-58 to track the location of obstacles in the user's environment. By accurately tracking the location of obstacles, warnings about these obstacles or their presence can be displayed on the display 2.3-14 to help the user avoid unwanted collisions with the obstacles.

[0957] If desired, multiple electronic devices 2.3-10 in system 2.3-8 can monitor for conditions indicating the need for supplemental lighting. For example, multiple users may be wearing head-mounted devices, and one device may detect low levels of ambient lighting in front of another device. In this type of system, any of the devices detecting low levels of ambient lighting can send a signal to the other devices in the system requesting that supplemental lighting be provided. In response, one or more of the other devices can provide supplemental lighting to assist the requesting device's camera in collecting images. Thus, supplemental lighting systems of different devices can assist each other by contributing to shared supplemental lighting. This may allow a wall-powered device to help provide supplemental lighting for a battery-powered device, or may allow electronic devices closer to a tracked object to provide supplemental lighting to that object more efficiently than electronic devices farther from the tracked object (as examples).

[0958] Unless a condition for triggering auxiliary lighting is detected, device 2.3-10 (e.g., control circuit 12) may continue to monitor conditions that meet auxiliary lighting trigger criteria (e.g., dim ambient lighting, poor tracking camera image processing quality, poor camera hardware performance, criteria based on proximity of an obstacle, requests from other devices, etc.) during operation of block 2.3-150.

[0959] If the trigger criteria are met, processing may proceed to block 2.3-152. During operation of block 2.3-152, the control circuit 2.3-14 may use the auxiliary lighting system to provide auxiliary lighting for the camera (e.g., infrared light emitted by the light sources 2.3-58, illuminating external objects within the field of view of the tracking camera). In providing auxiliary lighting, the power of the infrared light emitted by each light source 2.3-58 and / or the direction of the light beam(s) emitted by each light source 2.3-58 may be adjusted. For example, some devices 2.3-70 may be turned on while others 2.3-70 remain off, and the emitted light beams may be directed toward an area containing the tracked object (e.g., the known location of a user's hand or other external object of interest being tracked by the tracking camera) and / or an adjacent area, with the emitted power level adjusted in stages or continuously (e.g., so that sufficient auxiliary lighting is provided to ensure satisfactory tracking camera operation without providing excessive lighting).

[0960] Light sources configured to provide illumination over fixed areas, such as light source 2.3-58 in Figures 2.3-5 and 2.3-6, can be turned on to ensure that objects within those fixed areas are illuminated. Light sources emitting steerable beams, such as light source 2.3-58 in Figures 2.3-5 and 2.3-8, may be used to emit supplemental illumination over a relatively wide area (e.g., by scanning the beam over a wide area or by simultaneously using multiple smaller beams to illuminate different portions of a wider area), or to emit supplemental illumination at a specific location, such as the location(s) containing the user's hand or other object being tracked.

[0961] Supplemental lighting may be provided for cameras that track body parts of the user, cameras that track the location of accessories, cameras that capture pass-through video, cameras that form part of a visual inertial odometry system, and / or other optical components that collect light from objects in the vicinity of device 2.3-10. Optionally, light source 2.3-58 may be configured to emit structured light (e.g., lines, dots, features distributed in a pseudo-random pattern, etc.). Structured light may be used, for example, in scenarios where a tracking camera collects three-dimensional images.

[0962] During operation of block 2.3-152, device 2.3-10 may monitor for conditions indicating that supplemental lighting is no longer needed. Control circuit 2.3-12 may monitor, for example, to determine whether a supplemental lighting trigger condition is no longer met. As long as dim ambient lighting conditions or other conditions indicating that supplemental lighting should be provided continue to exist, device 2.3-10 may continue to use light source 2.3-58 to provide supplemental lighting. When the dim lighting conditions end, or if it is determined that other conditions for which supplemental lighting are desired no longer exist, device 2.3-10 may turn off the supplemental lighting system. In particular, control circuit 2.3-12 may turn off light source 2.3-58 during operation of block 156. Operation may then return to block 2.3-150, as indicated by line 2.3-152. 2.4: System with display and sensor hiding structure

[0963] FIG. 2.4-1 is a front view of device 2.4-10 in an exemplary configuration in which device 2.4-10 has a publicly viewable display, such as front display 2.4-14F. As shown in FIG. 2.4-1, support structure 2.4-16M of device 2.4-10 can have right and left portions, such as portions 2.4-16R and 2.4-16L, joined by an intervening nose bridge portion, such as portion 2.4-16NB. Portion 2.4-16NB can have a curved outer surface, such as nose bridge surface 2.4-90, configured to receive and rest against a user's nose to help support main housing portion 2.4-16M on the user's head.

[0964] The display 2.4-14F may have an active area, such as active area AA, configured to display an image, and an inactive area IA that does not display an image. The contour of the active area AA may be rectangular, rectangular with rounded corners, teardrop-shaped portions on the left and right sides of the device 2.4-10, a shape with straight edges, a shape with curved edges, a shape with a periphery having both straight and curved portions, and / or any other suitable contour. As shown in Figure 2.4-1, the active area AA may have a curved recess in the nose bridge portion 2.4-16NB of the main housing portion 2.4-16. The presence of a nose-shaped recess in the active area AA can help fit the active area AA within the available space of the housing portion 2.4-16M without unduly restricting the size of the active area AA.

[0965] The active area AA includes an array of pixels. The pixels may be light-emitting diode pixels formed, for example, from thin-film organic light-emitting diodes or crystalline semiconductor light-emitting diode dies (sometimes called micro-light-emitting diodes) on a flexible display panel substrate. Configurations in which the display 2.4-14F uses other display technologies may also be used, if desired. An exemplary configuration in which the display 14 is formed from a light-emitting diode display, such as an organic light-emitting diode display, formed on a flexible substrate (e.g., a substrate formed from a bendable layer of polyimide or a sheet of other flexible polymer) is sometimes described herein by way of example. The pixels of the active area AA may be formed on a display device such as the display panel 2.4-14P (e.g., a flexible organic light-emitting diode display panel) of FIG. 2.4-1. In some configurations, the outline of the active area AA (and, optionally, panel 2.4-14P) may have a periphery including straight segments or a combination of straight and curved segments. Configurations in which the entire outline of the active area AA (and optionally panel 2.4-14P) is characterized by a curved periphery may also be used.

[0966] Display 2.4-14F may have an inactive area, such as inactive area IA, that is devoid of pixels and does not display an image. Inactive area IA may form an inactive border region that extends along one or more portions of the periphery of active area AA. In the exemplary configuration of FIG. 2.4-1, inactive area IA has a ring shape that surrounds active area AA to form an inactive border. In this type of configuration, the width of inactive area IA may be relatively constant, and the inner and outer edges of area IA may be characterized by straight and / or curved segments or may be curved along their entire length. For example, the outer edge of area IA (e.g., the periphery of display 2.4-14F) may have a curved contour that extends parallel to the curved edge of active area AA.

[0967] In some configurations, device 2.4-10 can operate with other devices (e.g., wireless controllers and other accessories) in system 2.4-8. These accessories can have magnetic sensors that sense the direction and strength of magnetic fields. Device 2.4-10 can have one or more electromagnets configured to emit magnetic fields. The magnetic fields can be measured by wireless accessories near device 2.4-10, allowing the accessories to determine their orientation and position relative to device 2.4-10. This allows the accessories to wirelessly provide real-time information about their current position, orientation, and movement to device 2.4-10, thereby allowing the accessories to function as wireless controllers. Accessories can include wearable devices, handled devices, and other input devices.

[0968] In an exemplary configuration, device 2.4-10 can have a coil, such as exemplary coil 2.4-54, extending around the periphery of display 2.4-14F (e.g., beneath inactive area IA or other portions of display 2.4-14F). Coil 2.4-54 can have any suitable number of windings (e.g., between 1 and 10, at least 2, at least 5, at least 10, between 10 and 50, less than 100, less than 25, less than 6, etc.). These windings may be formed from metal traces on a substrate, from wire, and / or from other conductive lines. In operation, control circuit 2.4-12 can provide an alternating current (AC) drive signal to coil 2.4-54. The drive signal can have a frequency (by way of example) of at least 1 kHz, at least 10 kHz, at least 100 kHz, at least 1 MHz, less than 10 MHz, less than 3 MHz, less than 300 kHz, or less than 30 kHz. When AC current flows through coil 2.4-54, a corresponding magnetic field is generated in the vicinity of device 2.4-10. An electronic device, such as a wireless controller, having a magnetic sensor in the vicinity of device 2.4-10 can use the magnetic field as a reference to determine the orientation, position, and / or movement of the wireless controller as it is moved relative to device 2.4-10 and provide input to device 2.4-10.

[0969] As an example, consider a handheld wireless controller used to control the operation of device 2.4-10. During operation, device 2.4-10 emits a magnetic field using coil 2.4-54. As the handheld wireless controller is moved, a magnetic sensor in the controller can monitor the location and movement of the controller relative to device 2.4-10 by monitoring the strength, orientation, and changes in strength and / or orientation of the magnetic field emitted by coil 2.4-54 as the controller is moved through the air by the user. The electronic device can then wirelessly transmit information regarding the location and orientation of the controller to device 2.4-10. In this manner, the handheld controller, wearable controller, or other external accessory can be manipulated by the user to provide air gestures, pointing inputs, steering inputs, and / or other user inputs to device 2.4-10.

[0970] Device 2.4-10 can have components such as optical components (e.g., optical sensors among sensors 2.4-16 in FIG. 2.4-1). These components can be mounted in any suitable location on the head-mounted support structure 2.4-16 (e.g., on head strap 2.4-16B, on main housing portion 2.4-16M, etc.). The optical and other components can face rearward (e.g., when mounted on the rear of device 2.4-10), sideward (e.g., left or right), downward or upward, toward the front of device 2.4-10 (e.g., when mounted on the front of device 2.4-10), can be mounted to point in any combination of these directions (e.g., forward, right, and downward), and / or can be mounted in other suitable orientations. In an exemplary configuration, at least some of the components of device 2.4-10 are mounted to face outward toward the front (and optionally sideways and / or up and down). For example, forward-facing cameras for pass-through video may be mounted on the left and right sides of the front of device 2.4-10 in a configuration such that the cameras diverge slightly along the horizontal dimension and their fields of view overlap to some extent while capturing a wide-angle image of the environment in front of device 2.4-10. The captured image can optionally include portions of the user's surroundings below, above, and to the sides of the area directly in front of device 2.4-10.

[0971] To help conceal components such as optical components from view outside the device 2.4-10, it may be desirable to cover some or all of the components with a cosmetic cover structure. The cover structure may include a transparent portion (e.g., an optical component window) characterized by sufficient optical transparency to allow the overlapping optical components to operate satisfactorily. For example, an ambient light sensor may be covered with a layer that appears opaque to an external observer to help hide the ambient light sensor from view, but that allows sufficient ambient light to pass through to the ambient light sensor for the ambient light sensor to make satisfactory ambient light measurements. As another example, an optical component that emits infrared light may be overlaid with a visually opaque material that is transparent to infrared light.

[0972] In an exemplary configuration, optical components for device 2.4-10 may be mounted within the inactive area IA of FIG. 2.4-1, and a cosmetic cover structure may be formed in a ring shape to overlap the optical components within the inactive area IA. The cosmetic cover structure may be formed from ink, polymer structures, metal-containing structures, glass, other materials, and / or combinations of these materials. In an exemplary configuration, the cosmetic cover structure may be formed from a ring-shaped member having a footprint that matches the footprint of the inactive area IA. For example, if the active area AA has left and right portions with a teardrop shape, the ring-shaped member may have curved edges that follow the curved perimeter of the teardrop-shaped portion of the active area AA. The ring-shaped member may be formed from one or more polymer structures (e.g., the ring-shaped member may be formed from a polymer ring). Because the ring-shaped member can help hide the overlapping components from view, the ring-shaped member may also be referred to as a shroud or ring-shaped shroud member. The appearance of the shroud or other cosmetic cover structure may be characterized by a neutral color (white, black, or gray) or a non-neutral color (e.g., blue, red, green, gold, rose gold, etc.).

[0973] Display 2.4-14F may optionally have a protective display cover layer that may overlay active area AA and inactive area IA (e.g., the entire front surface of device 2.4-10 as viewed from direction 2.4-52 in FIG. 2.4-1 may be covered by a cover layer). The cover layer, sometimes referred to as a housing wall or transparent housing wall, may have a rectangular outline, a teardrop outline, an oval outline, or other shape with curved and / or straight edges.

[0974] The cover layer can be formed from a transparent material, such as glass, polymer, a transparent crystalline material such as sapphire, a transparent ceramic, other transparent materials, and / or a combination of these materials. As an example, a protective display cover layer for a 2.4-14F display can be formed from safety glass (e.g., laminated glass including a transparent glass layer with a laminated polymer film). Optional coating layers can be applied to the surface of the display cover layer. If necessary, the display cover layer can be chemically strengthened (e.g., using an ion-exchange process to create an outer layer of material under compressive stress that is scratch-resistant). In some configurations, the display cover layer can be formed from a stack of two or more material layers (e.g., a first structural glass layer and a second structural glass layer, a rigid polymer layer bonded to a glass layer or another rigid polymer layer, etc.) to improve the performance of the cover layer.

[0975] In the active area AA, a display cover layer may overlie the pixels of the display panel 2.4-14P. The display cover layer in the active area AA is preferably transparent so that the image presented on the display panel 2.4-14P can be viewed. In the inactive area IA, the display cover layer may overlie a ring-shaped shroud or other cosmetic cover structure. The shroud and / or other cover structure (e.g., an opaque ink coating on the inner surface of the display cover layer and / or structure) may be sufficiently opaque to help hide some or all of the optical components in the inactive area IA from view. Windows may be provided in the shroud or other cosmetic cover structure to help ensure satisfactory operation of the optical components over which these structures are located. The windows may be formed from holes, from areas of the shroud or other cosmetic cover structure that have been locally thinned to enhance light transmission, from window members with desired light transmission properties inserted into mating openings in the shroud, and / or from other shroud-window structures.

[0976] In the example of Figure 2.4-1, device 2.4-10 includes optical components such as (by way of example) optical components 2.4-60, 2.4-62, 2.4-64, 2.4-66, 2.4-68, 2.4-70, 2.4-72, 2.4-74, 2.4-76, 2.4-78, and 2.4-80. Each of these optical components (e.g., an optical sensor selected from among sensors 2.4-16 of Figure 2.4-1, a light emitting device, etc.) can be configured to detect light and, as needed, emit light (e.g., ultraviolet, visible, and / or infrared light).

[0977] In an exemplary configuration, optical component 2.4-60 can sense ambient light (e.g., visible ambient light). In particular, optical component 2.4-60 can have a photodetector that senses changes in ambient light intensity as a function of time. As an example, if a user is operating in an environment with an artificial light source, the light source can emit light at a frequency associated with its wall power source (e.g., 60 Hz AC mains). The photodetector of component 2.4-60 can sense that the artificial light from the artificial light source is characterized by 60 Hz intensity fluctuations. Control circuit 2.4-12 can use this information to adjust a clock or other timing signal associated with the operation of an image sensor in device 2.4-10 to help avoid undesirable interference between the light source frequency and the frame rate or other frequencies associated with image capture operations. Control circuit 2.4-12 can also use measurements from component 2.4-60 to help identify the presence and type of artificial lighting present. In this way, control circuit 2.4-12 can detect the presence of light, such as fluorescent lights or other lights with known non-ideal color characteristics, and can make corrective color cast adjustments (e.g., white point adjustments) to color-sensitive components such as cameras and displays. Because optical component 2.4-60 can measure variations in light intensity, component 2.4-60 is sometimes referred to as a flicker sensor or ambient light frequency sensor.

[0978] Optical component 2.4-62 may be an ambient light sensor. The ambient light sensor may include one or more photodetectors. In a single-photodetector configuration, the ambient light sensor may be a monochrome sensor that measures ambient light intensity. In a multi-photodetector configuration, each photodetector may be overlaid with an optical filter that passes a different wavelength band (e.g., different visible and / or infrared passbands). The optical filter passbands may overlap at their edges. This allows component 2.4-62 to function as a color ambient light sensor that measures both ambient light intensity and ambient light color (e.g., by measuring the color coordinates of the ambient light). During operation of device 2.4-10, control circuit 2.4-12 can take action based on the measured ambient light intensity and color. As an example, the white point of a display or image sensor may be adjusted, or other display or image sensor color adjustments may be made, based on the measured ambient light color. The intensity of the display may be adjusted based on the light intensity. For example, the brightness of the display 2.4-14F may be increased in bright ambient lighting conditions to enhance the visibility of the image on the display, and the brightness of the display 2.4-14F may be reduced in dim lighting conditions to conserve power. Image sensor operation and / or light source operation may also be adjusted based on ambient light readings.

[0979] Optical components within the active area IA can also include components along the sides of device 2.4-10, such as components 2.4-80 and 2.4-64. Optical components 2.4-80 and 2.4-64 can be pose-tracking cameras used to help monitor the orientation and movement of device 2.4-10. Components 2.4-80 and 2.4-64 can be visible light cameras (and / or cameras sensitive to visible and infrared wavelengths) and, together with an inertial measurement unit, can form a visual inertial odometry (VIO) system.

[0980] Optical components 2.4-78 and 2.4-66 may be visible light cameras that capture real-time images of the environment surrounding device 2.4-10. These cameras, sometimes referred to as scene cameras or pass-through video cameras, can capture video that is displayed in real time on display 2.4-14R for the user to view when the user's eyes are positioned within eyebox 2.4-24 at the rear of device 2.4-10. In this manner, displaying a pass-through image (pass-through video) to the user can provide the user with real-time information about their surroundings. Optionally, virtual content (e.g., computer-generated imagery) can be overlaid on top of portions of the pass-through video. Device 2.4-10 can also operate in a non-pass-through video mode in which components 2.4-78 and 2.4-66 are turned off and the user is provided with only movie content, game content, and / or other virtual content that does not include real-time real-world imagery.

[0981] The input / output devices 2.4-12 of the device 2.4-10 can collect user input for use in controlling the operation of the device 2.4-10. As an example, a microphone within the device 2.4-10 can collect voice commands. Buttons, touch sensors, force sensors, and other input devices can collect user input from a user's fingers or other external objects in contact with the device 2.4-10. In some configurations, it may be desirable to monitor the user's hand gestures or other movements of the user's body parts. This can allow the location of the user's hands or other body parts to be replicated in a game or other virtual environment, allowing the user's hand movements to act as hand gestures (or air gestures) that control the operation of the device 2.4-10. User input, such as hand gesture input, can be captured using cameras operating in visible and infrared wavelengths, such as tracking cameras (e.g., optical components 2.4-76 and 2.4-68). Tracking cameras such as these may also track reference points and other recognizable features on controllers and other external accessories (additional devices 2.4-10 of system 2.4-8) during use of these controllers in controlling the operation of device 2.4-10. If desired, tracking cameras can help determine the position and orientation of handheld or wearable controllers, which sense their location and orientation by measuring the magnetic fields generated by coils 2.4-54. Thus, the use of tracking cameras can help track hand and controller movements used in moving pointers and other virtual objects displayed to the user and otherwise assist in controlling the operation of device 2.4-10.

[0982] The tracking camera may operate satisfactorily in the presence of sufficient ambient light (e.g., bright visible ambient lighting conditions). In dimly lit environments, supplemental lighting may be provided by supplemental light sources, such as supplemental infrared light sources (e.g., optical components 2.4-82 and 2.4-84). The infrared light sources may each include one or more light emitting devices (light emitting diodes or lasers), each configured to provide a fixed and / or steerable beam of infrared light that functions as supplemental lighting for the tracking camera. If desired, the infrared light sources may be turned off in bright ambient lighting conditions (e.g., using the ambient light sensing capabilities of optical component 2.4-62) and turned on in response to detection of dim ambient lighting.

[0983] The three-dimensional sensors in device 2.4-10 may be used to perform biometric identification operations (e.g., facial identification for authentication), to determine the three-dimensional shape of objects in the user's environment (e.g., to map the user's environment so that a matching virtual environment can be created for the user), and / or to collect three-dimensional content during operation of device 2.4-10. As an example, optical components 2.4-74 and 2.4-70 may be three-dimensional structured light image sensors. Each three-dimensional structured light image sensor may have one or more light sources that provide structured light (e.g., a dot projector that projects an array of infrared dots onto the environment, a structured light source that generates a grid of lines, or other structured light components that emit structured light). Each of the three-dimensional structured light image sensors may also include a flood illuminator (e.g., a light emitting diode or laser that emits a wide beam of infrared light). Using flood and structured illumination, optical components 2.4-74 and 2.4-70 can capture facial images, images of objects in the environment surrounding device 2.4-10, and the like.

[0984] Optical component 2.4-72 may be an infrared three-dimensional time-of-flight camera that uses time-of-flight measurements on emitted light to collect three-dimensional images of objects in the environment surrounding device 2.4-10. Component 2.4-72 may have a longer range and a narrower field of view than the three-dimensional structured light cameras of optical components 2.4-74 and 2.4-70. The operating range of component 2.4-72 may be (by way of example) 30 cm to 7 m, 2.4-60 cm to 6 m, 70 cm to 5 m, or other suitable operating range. 2.5: Systems with Cover Layer Sealing Structures

[0985] The head-mounted device may include a head-mounted support structure that allows the device to be worn on a user's head. The head-mounted device may have a display supported by the head-mounted support structure for presenting visual content to the user. The display may include a rear-facing display that presents images to an eyebox behind the head-mounted support structure. The display may also include a front-facing display. The front-facing display may be mounted on the front of the head-mounted support structure and may be viewable by the user when the head-mounted device is not worn on the user's head. The front-facing display, sometimes referred to as a public-viewable display, may also be viewable by other people in the vicinity of the head-mounted device.

[0986] Optical components, such as image sensors and other optical sensors, may be provided within the head-mounted device. In an exemplary configuration, the optical components are mounted under a peripheral portion of a display cover layer that protects the front display. The display cover layer, or other layers within the head-mounted device, may be formed from a material such as glass that is prone to shattering. Because the head-mounted device is near the user's eyes during operation, it may be desirable to reduce the likelihood of these layers getting into the user's eyes. Therefore, a laminate, such as a plastic laminate, may be formed on the top and bottom surfaces of the cover layer. To protect the edges of the cover layer, an encapsulant material may be bonded to the edge surfaces, or the head-mounted device housing structure may be modified to reduce the likelihood of glass from the cover layer escaping the device.

[0987] FIG. 2.5-1 is a side view of an exemplary head-mounted electronic device. As shown in FIG. 2.5-1, head-mounted device 2.5-10 can include a head-mounted support structure 2.5-26. Support structure 2.5-26 can have walls or other structures that separate an interior region of device 2.5-10, such as interior region 2.5-42, from an exterior region surrounding device 2.5-10, such as exterior region 2.5-44. Electrical components 2.5-40 (e.g., integrated circuits, sensors, control circuits, light-emitting diodes, lasers, and other light-emitting devices, other control circuits, and input / output devices) can be mounted on printed circuits and / or other structures within device 2.5-10 (e.g., within interior region 2.5-42).

[0988] To present an image to a user for viewing from an eyebox, such as eyebox 2.5-34, device 2.5-10 may include a rear display, such as display 2.5-14R, which may have an associated lens that focuses the image for viewing within the eyebox. These components may be mounted within an optical module (e.g., a lens barrel) to form respective left and right optical systems. For example, there may be a left rear display for presenting images through a left lens to the user's left eye in the left eyebox, and a right rear display for presenting images to the user's right eye in the right eyebox. The user's eyes are located within eyebox 2.5-34 on the rear R of device 2.5-10 when structure 2.5-26 is placed against the exterior surface of the user's face.

[0989] The support structure 2.5-26 can include a main support structure (sometimes referred to as a main portion or housing). The main housing support structure can extend from a front side F of the device 2.5-10 to an opposite rear side R of the device 2.5-10. At the rear side R, the support structure 2.5-26 can have a cushioning structure to improve user comfort when the support structure 2.5-26 is placed against the user's face. Optionally, the support structure 2.5-26 can include an optional head strap and / or other structure that allows the device 2.5-10 to be worn on the user's head.

[0990] Device 2.5-10 can have a publicly viewable, forward-facing display, such as display 2.5-14F, mounted on the front side F of support structure 2.5-26. Display 2.5-14F can be visible to the user when the user is not wearing device 2.5-10 and / or can be viewable by others in the vicinity of device 2.5-10. Display 2.5-14F can be seen, by way of example, on the front side F of device 2.5-10 by an external observer looking at device 2.5-10 from the front F.

[0991] A schematic diagram of an exemplary system that may include a head-mounted device is shown in Figure 2.5-2. As shown in Figure 2.5-2, system 2.5-8 may include one or more electronic devices 2.5-10. Devices 2.5-10 may include a head-mounted device (e.g., device 2.5-10 in Figure 2.5-1), accessories such as controllers and headphones, computing devices (e.g., cellular phones, tablet computers, laptop computers, desktop computers, and / or remote computing devices that provide content to the head-mounted device), and / or other devices that communicate with each other.

[0992] Each electronic device 2.5-10 may have a control circuit 2.5-12. The control circuit 2.5-12 may include storage and processing circuitry that controls the operation of the device 2.5-10. The circuit 2.5-12 may include storage such as hard disk drive storage, non-volatile memory (e.g., electrically programmable read-only memory configured to form a solid-state drive), or volatile memory (e.g., static or dynamic random access memory). The processing circuitry of the control circuit 2.5-12 may be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio chips, graphics processing units, application-specific integrated circuits, and other integrated circuits. Software code may be stored on the storage within the circuit 2.5-12 and executed on the processing circuitry within the circuit 2.5-12 to perform control operations for the device 2.5-10 (e.g., data collection operations, operations involving adjustment of components of the device 2.5-10 using control signals, etc.). The control circuit 2.5-12 may include wired and wireless communication circuitry. For example, control circuitry 2.5-12 may include wireless transceiver circuitry, such as cellular telephone transceiver circuitry, wireless local area network transceiver circuitry (e.g., WiFi® circuitry), millimeter wave transceiver circuitry, and / or other wireless communication circuitry.

[0993] In operation, communication circuitry of devices in System 2.5-8 (e.g., communication circuitry of Control Circuit 2.5-12 of Device 2.5-10) can be used to support communication between electronic devices. For example, one electronic device can transmit video data, audio data, control signals, and / or other data to another electronic device in System 2.5-8. Electronic devices in System 2.5-8 can communicate over one or more communication networks (e.g., the Internet, a local area network, etc.) using wired and / or wireless communication circuitry. The communication circuitry can be used to enable Device 2.5-10 to receive data from and / or provide data to external devices (e.g., portable devices such as tethered computers, handheld devices, or laptop computers, online computing devices such as remote servers or other remote computing devices, or other electrical devices).

[0994] Each device 2.5-10 in system 2.5-8 may include an input / output device 2.5-22. The input / output device 2.5-22 may be used to allow a user to provide user input to the device 2.5-10. The input / output device 2.5-22 may also be used to gather information about the environment in which the device 2.5-10 is operating. Output components within the device 2.5-22 may allow the device 2.5-10 to provide output to the user and may be used to communicate with external electrical equipment.

[0995] As shown in Figure 2.5-2, input / output device 2.5-22 can include one or more displays, such as display 2.5-14. Display 2.5-14 can include a rear display, such as display 2.5-14R in Figure 2.5-1. Device 2.5-10 can include left and right components, such as left and right scanning mirror display devices or other image projectors, liquid crystal on silicon display devices, digital mirror devices, or other reflective display devices, left and right display panels based on light emitting diode pixel arrays (e.g., thin film organic light emitting displays having polymer or semiconductor substrates such as silicon substrates, or display devices based on pixel arrays formed from crystalline semiconductor light emitting diode dies), liquid crystal display panels, and / or other left and right display devices that provide images to the left and right eyeboxes for viewing by a user's left and right eyes, respectively. Display components such as these (e.g., thin-film organic light-emitting displays with flexible polymer substrates, or displays based on pixel arrays formed from crystalline semiconductor light-emitting diode dies on flexible substrates) can also be used in forming front displays (sometimes called forward-facing displays, front displays, or publicly viewable displays) for devices 2.5-10, such as front display 2.5-14F in Figure 2.5-1.

[0996] In operation, the display 2.5-14 (e.g., display 2.5-14R and / or 2.5-14F) may be used to display visual content (e.g., still and / or moving images, including photographs and pass-through video from a camera sensor, text, graphics, movies, games, and / or other visual content) for a user of the device 2.5-10. The content presented on the display 2.5-14 may include, for example, virtual objects and other content provided to the display 2.5-14 by the control circuitry 2.5-12. This virtual content may also be referred to as computer-generated content. The computer-generated content may be displayed in the absence of real-world content or may be combined with real-world content. In some configurations, a real-world image may be captured by a camera (e.g., a forward-facing camera, sometimes referred to as a front camera), and the computer-generated content may be electronically overlaid on portions of the real-world image (e.g., when the device 2.5-10 is a pair of virtual reality goggles).

[0997] The input / output circuitry 2.5-22 may include sensors 2.5-16, such as, for example, three-dimensional sensors (e.g., three-dimensional image sensors such as structured light sensors that emit a light beam and use a two-dimensional digital image sensor to collect image data for a three-dimensional image from dots or other light spots created when a target is illuminated by the light beam; binocular three-dimensional image sensors that use two or more cameras in a binocular imaging configuration to collect three-dimensional images; and three-dimensional LIDAR (light detection and ranging), sometimes referred to as a time-of-flight camera or three-dimensional time-of-flight camera. ranging) sensors, three-dimensional radio frequency sensors, or other sensors that collect three-dimensional image data), cameras (e.g., two-dimensional infrared and / or visible digital image sensors), eye-tracking sensors (e.g., eye-tracking systems based on image sensors and, optionally, light sources that emit one or more light beams that are reflected from the user's eyes and then tracked using the image sensors), sensors such as touch sensors, capacitive proximity sensors, light-based (optical) proximity sensors, other proximity sensors, force sensors (e.g., strain gauges, capacitive force sensors, resistive force sensors, etc.), switch-based contact sensors, gas sensors, pressure sensors, humidity sensors, magnetic sensors, audio sensors (microphones), ambient light sensors, flicker sensors that collect temporal information about ambient lighting conditions such as the presence of time-varying ambient light intensity associated with artificial lighting, microphones for collecting voice commands and other audio inputs, sensors configured to collect information about movement, position, and / or orientation (e.g., accelerometers, gyroscopes, compasses, and / or inertial measurement units that include all of these sensors or a subset of one or two of these sensors), and / or other sensors.

[0998] User input and other information may be collected using sensors and other input devices within the input / output device 2.5-22. Optionally, the input / output device 2.5-22 may include other devices 2.5-24 such as tactile output devices (e.g., vibrating components), light emitting diodes, lasers, and other light sources (e.g., light emitting devices that emit light to illuminate the environment surrounding the device 2.5-10 when ambient light levels are low), speakers such as ear speakers for generating audio output, circuitry for receiving wireless power, circuitry for wirelessly transmitting power to other devices, batteries and other energy storage devices (e.g., capacitors), joysticks, buttons, and / or other components.

[0999] As described in connection with FIG. 2.5-1, electronic device 2.5-10 can have a head-mounted support structure (e.g., a head-mounted housing structure such as a housing wall, strap, etc.), such as head-mounted support structure 2.5-26. The head-mounted support structure may be configured to be worn on a user's head (e.g., against the user's face over the user's eyes) during operation of device 2.5-10 and can support display 2.5-14, sensors 2.5-16, other components 2.5-24, other input / output devices 2.5-22, and control circuitry 2.5-12 (e.g., see component 2.5-40 and displays 2.5-14R and 2.5-14F in FIG. 2.5-1, which may include an associated optical module).

[1000] FIG. 2.5-3 is a front view of device 2.5-10 in an exemplary configuration in which device 2.5-10 has a publicly viewable display, such as front display 2.5-14F. As shown in FIG. 2.5-3, support structure 2.5-26 of device 2.5-10 may have right and left portions on either side of nose bridge 2.5-90. Nose bridge 2.5-90 may have a curved outer surface configured to receive and rest on the user's nose to help support housing 2.5-26 on the user's head.

[1001] The display 2.5-14F may have an active area, such as active area AA, configured to display an image, and an inactive area IA that does not display an image. The contour of the active area AA may be rectangular, a rectangle with rounded corners, teardrop-shaped portions on the left and right sides of the device 2.5-10, a shape with straight edges, a shape with curved edges, a shape with a periphery that has both straight and curved portions, and / or any other suitable contour. As shown in FIG. 2.5-3, the active area AA may have a curved recess in the nose bridge 2.5-90. The presence of a nose-shaped recess in the active area AA can help fit the active area AA within the available space of the housing 2.5-26 without unduly restricting the size of the active area AA.

[1002] The active area AA includes an array of pixels. The pixels may be, for example, light-emitting diode pixels formed from thin-film organic light-emitting diodes or crystalline semiconductor light-emitting diode dies (sometimes called micro-light-emitting diodes) on a flexible display panel substrate. Configurations in which the display 2.5-14F uses other display technologies may also be used, if desired. An exemplary configuration in which the display 2.5-14 is formed from a light-emitting diode display, such as an organic light-emitting diode display, formed on a flexible substrate (e.g., a substrate formed from a bendable layer of polyimide or a sheet of other flexible polymer) is sometimes described herein by way of example. The pixels of the active area AA may be formed on a display device such as a display panel (e.g., a flexible organic light-emitting diode display panel). In some configurations, the outline of the active area AA may have a periphery that includes straight segments or a combination of straight and curved segments. Configurations in which the entire outline of the active area AA is characterized by a curved periphery may also be used.

[1003] Display 2.5-14F may have an inactive area, such as inactive area IA, that is devoid of pixels and does not display an image. Inactive area IA may form an inactive border region that extends along one or more portions of the periphery of active area AA. In the exemplary configuration of FIG. 2.5-3, inactive area IA has a ring shape that surrounds active area AA to form an inactive border. In this type of configuration, the width of inactive area IA may be relatively constant, and the inner and outer edges of area IA may be characterized by straight and / or curved segments or may be curved along their entire length. For example, the outer edge of area IA (e.g., the periphery of display 2.5-14F) may have a curved contour that extends parallel to the curved edge of active area AA.

[1004] In some configurations, device 2.5-10 can operate with other devices (e.g., wireless controllers and other accessories) in system 2.5-8. These accessories can have magnetic sensors that sense the direction and strength of magnetic fields. Device 2.5-10 can have one or more electromagnets configured to emit magnetic fields. The magnetic fields can be measured by wireless accessories near device 2.5-10, allowing the accessories to determine their orientation and position relative to device 2.5-10. This allows the accessories to wirelessly provide real-time information about their current position, orientation, and movement to device 2.5-10, thereby allowing the accessories to function as wireless controllers. Accessories can include wearable devices, handled devices, and other input devices.

[1005] In an exemplary configuration, device 2.5-10 may have a coil extending around the perimeter of display 2.5-14F (e.g., around active area AA and below inactive area IA). The coil may have any suitable number of windings (e.g., 1-10, at least 2, at least 5, at least 10, 10-50, less than 100, less than 25, less than 6, etc.). These windings may be formed from metal traces on a substrate, from wire, and / or from other conductive ...

Claims

1. A head-wearable electronic device, comprising: Housing and an optical module fixed to the housing; a facial interface connected to the housing; a strap connected to the housing and electrically connected to the optical module, the strap defining a volume and including a processor disposed within the volume; a fixing band connected to the strap.

2. The optical module is A movable display; a motor connected to the display; 10. The head-wearable electronic device of claim 1, further comprising: an inward-facing sensor for detecting facial features of a user wearing the head-wearable electronic device.

3. The optical module is a first display; and a second display; and 10. The head-wearable electronic device of claim 1, further comprising: an inward-facing sensor for detecting facial features of a user wearing the head-wearable electronic device.

4. The facial interface: a structural frame connected to the housing; The head-wearable electronic device of claim 1 , further comprising: a pad connected to the structural frame.

5. The head-wearable electronic device of claim 4 , wherein the structural frame is magnetically attached to the housing.

6. the strap is connected at a first end to the housing; the strap further includes a power connector disposed at a second end; The head-wearable electronic device of claim 1 , wherein the power connector is electrically connected to the processor and the optical module.

7. The head-wearable electronic device of claim 1 , further comprising a speaker disposed within the volume.

8. The strap: a first strap connected to the housing; The head-wearable electronic device of claim 1 , further comprising: a second strap connected to the housing, the second strap connected to the securing band.

9. The fixing band is flexible, The head-wearable electronic device of claim 1 , wherein the securing band is rotatably connected to the strap.

10. A wearable electronic device, comprising: Housing and a first optical module secured to the housing, the first optical module including a first display screen and a first sensor, the first display screen and the first sensor facing inward; a second optical module secured to the housing, the second optical module including a second display screen and a second sensor, the second display screen and the second sensor facing inward; a facial interface connected to the housing; a first electronics strap connected to a first side of the housing and electrically connected to the first optical module, the first electronics strap defining a first volume and including a processor disposed within the first volume; a second electronic strap connected to a second side of the housing, the second electronic strap electrically connected to the first electronic strap and defining a second volume; a band connected to the first electronic strap and the second electronic strap.

11. a first speaker disposed within the first volume; The wearable electronic device of claim 10, further comprising: a second speaker disposed within the second volume.

12. The wearable electronic device of claim 10 , wherein the first electronic strap further comprises a power connector electrically connected to the processor.

13. the first electronics strap is removably connected to the housing; The wearable electronic device of claim 10 , wherein the second electronics strap is removably connected to the housing.

14. a first motor movably connecting the first optical module to the housing; The wearable electronic device of claim 10 , further comprising: a second motor movably connecting the second optical module to the housing.

15. The facial interface: a structural frame connected to the housing; 11. The wearable electronic device of claim 10, further comprising: a pad connected to the structural frame.

16. The wearable electronic device of claim 15 , wherein the facial interface is removably connected to the housing by a magnet.

17. 1. A head-wearable display device, comprising: Housing and an optical module translatably connected to the housing and including a display screen; a face-engaging structure disposed on an exterior surface of the housing; a first strap connected to the housing, the first strap defining a first volume; a processor disposed within the volume; and A power connector, a first strap including a first conductor electrically connecting the power connector to the processor and the optical module; a second strap connected to the housing, the second strap defining a second volume and including a second conductor electrically connecting to the power connector; a band connected to the first strap and the second strap.

18. a first speaker disposed within the first volume; 20. The head-wearable display device of claim 17, further comprising: a second speaker disposed within the second volume.

19. 18. The head-wearable display of claim 17, further comprising a motor translatably connecting the optical module to the housing, the processor controllably connected to the motor.

20. The head-wearable display of claim 17 , wherein the face-engaging structure is removably connected to the housing via a magnet.

Images