Adjustment of the display for head-mounted display devices

Abstract

This disclosure relates to display adjustment for a head-mounted display device. A head-mounted display device (HMD) may include a frame, a display coupled to the frame, an adjustment mechanism, and a motion transmission member. The display may include a first optical module and a second optical module. The adjustment mechanism may be coupled to the first optical module. The motion transmission member may be coupled to the adjustment mechanism and the second optical module. The motion transmission member may extend between the first and second optical modules. The adjustment mechanism may be configured to simultaneously adjust the positioning of the first and second optical modules relative to each other.

Description

Cross-references to related applications

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 758,214, filed February 13, 2025, entitled “DISPLAY ADJUSTMENT FOR A HEAD-MOUNTABLE DISPLAY DEVICE,” the entire disclosure of which is incorporated herein by reference. Technical Field

[0002] This disclosure relates in its entirety to head-mounted display devices. More specifically, this disclosure relates to adjusting the interpupillary distance of an optical module used in a head-mounted display device. Background Technology

[0003] Recent advancements in portable computing have spurred an increase in the use of head-mounted display devices (HMDs). A HMD's display may include one or more optical modules that present an image to the user's eyes. Users of HMDs may have a unique interpupillary distance (IPD), or the distance between the centers of their two pupils. For optimal use of a HMD, the positioning of the adjustable optical module pair is crucial, aligning the optical modules with the user's IPD. However, the system used for IPD adjustment within an HMD can be bulky, difficult to manage or operate, and challenging to assemble around other components of the HMD, especially when consumers prefer a lightweight and compact form factor. Summary of the Invention

[0004] In at least one example, a head-mounted display device may include a frame and a display coupled to the frame. The display may include a first optical module and a second optical module. The head-mounted display device may also include an adjustment mechanism coupled to the first optical module and a motion transmission member coupled to both the adjustment mechanism and the second optical module. The motion transmission member may extend between the first optical module and the second optical module. The adjustment mechanism may be configured to simultaneously adjust the positioning of the first optical module and the second optical module relative to each other.

[0005] In some examples, the adjustment mechanism may include a rack and pinion. The motion transmission member may include a cable. The rack and pinion may be angled relative to the cable. The rack and pinion may include a rotating column and a locking device configured to engage with the rotating column. The rack and pinion may include a damping element configured to absorb energy from impacts. The adjustment mechanism may include a lead screw. The motion transmission member may include a flexible shaft. The head-mounted display device may include an impact-absorbing element disposed at the connection between the motion transmission member and the second optical module.

[0006] In one aspect, an interpupillary distance adjustment mechanism may include a first guide coupled to a first optical module, a second guide coupled to a second optical module, an adjustment mechanism coupled to the first guide, and a motion transmission member. The motion transmission member may include a first longitudinal end coupled to the adjustment mechanism, a second longitudinal end coupled to the second guide, and elongated portions extending from the first and second longitudinal ends. The adjustment mechanism may be configured to simultaneously adjust the positioning of the first guide and the second guide relative to each other.

[0007] In some examples, the motion transmission member may extend through the midpoint of the interpupillary distance adjustment mechanism. The motion transmission member may extend through the midpoint in a non-linear configuration. The interpupillary distance adjustment mechanism may also include an actuator eccentrically positioned relative to the midpoint of the interpupillary distance adjustment mechanism. The actuator may be positioned adjacent to the first optical module. The actuator may include a first rack coupled to the first guide, a second rack coupled to the motion transmission member, and a circular gear engaging the first rack and the second rack.

[0008] In one aspect, a head-mounted display device may include a frame and a display coupled to the frame. The display may include a first optical module and a second optical module. The head-mounted display device may also include an interpupillary distance adjuster configured to modify the distance between the first optical module and the second optical module. The interpupillary distance adjuster may include a first lead screw coupled to the first optical module, a second lead screw coupled to the second optical module and angled relative to the first lead screw, and a center connector connecting the first lead screw and the second lead screw. Rotation of the first lead screw may cause adjustment of the interpupillary distance between the first optical module and the second optical module.

[0009] In some examples, the adjustment of the first lead screw can simultaneously adjust the positioning of the first optical module and the second optical module. The adjustment of the first lead screw in a first rotational direction can be configured to translate the first optical module and the second optical module closer to each other. The adjustment of the first lead screw in a second rotational direction can be configured to translate the first optical module and the second optical module further apart from each other. The interpupillary distance adjuster may include an actuator disposed adjacent to the first lead screw. Attached Figure Description

[0010] This disclosure will be readily understood from the following detailed description taken in conjunction with the accompanying drawings, in which the same reference numerals denote the same structural elements: Figure 1 A perspective view illustrating an example of a head-mounted display device (HMD); Figure 2 A schematic diagram illustrating an example of an HMD is shown below; Figure 3 A top-view illustration of an example HMD is shown; Figure 4 An example of an interpupillary distance (IPD) adjustment mechanism is shown; Figure 7 A close-up of the actuator of the IPD adjustment mechanism is shown; Figure 5 An example of an IPD control mechanism in a nonlinear configuration is shown; Figure 6 An example of an IPD control mechanism in a nonlinear configuration is shown; Figure 8 An example of an IPD adjustment mechanism including a motion transmission component in a nonlinear configuration is shown; Figure 9 An example of an IPD regulating mechanism is shown; Figure 10 An example of an IPD regulating mechanism is shown; and Figure 11 An example of an IPD control mechanism in a nonlinear configuration is shown. Detailed Implementation

[0011] Reference will now be made in detail to the representative examples illustrated in the accompanying drawings. It should be understood that the following description is not intended to limit the examples to a single preferred embodiment. Rather, the following description is intended to cover alternatives, modifications, and equivalents that may be included within the substance and scope of the described examples as defined by the appended claims.

[0012] This disclosure relates throughout to head-mounted display devices. Examples of head-mounted devices may include optical devices such as spectacle lenses, goggles with lenses, transparent display windows, displays, or virtual / augmented reality devices that may include optical components. In these examples, the head-mounted device can be worn on a user's head such that an optically transparent window (e.g., lenses and a transparent optical display) is positioned in front of the user's eyes. The display of a head-mounted display device (HMD) may include one or more optical modules that present images to the user's eyes. Users' heads may vary in size and shape, and more specifically, the distance between a user's eyes (also known as interpupillary distance (IPD)) may vary from user to user. For example, the average IPD for adults may be between 50mm and 70mm, with an average of approximately 63mm. The average IPD for children may be between 43mm and 58mm. When the lenses are positioned directly in front of the user's eyes, the display screen or display lenses provide an optimal immersive experience.

[0013] Current head-mounted display devices (HMDs) may include adjustment systems that allow users to adjust the positioning of lenses or displays. While current HMDs can adjust the display, the adjustment mechanisms do not allow for symmetrical and precise adjustment of the display. However, adjusting lenses to match the user's IPD (Integrated Device Dimension) can be difficult, as even minor adjustments to the lenses can impact the immersive experience delivered to the user. Furthermore, the addition of an IPD adjustment mechanism can add more components to the HMD. A continuing challenge in handling conventional IPD adjustment mechanism designs lies in the placement and efficient packaging of the IPD adjustment mechanism within the HMD. For example, in addition to the IPD adjustment mechanism and any corresponding components (e.g., actuators), a conventional HMD may include multiple components and structures within the HMD (e.g., fans, processors, cameras, etc.). Multiple components can result in a bulky, heavy IPD adjustment mechanism positioned at or near the optical modules to transmit motion or translation of each optical module. Therefore, it can be difficult to maintain a lightweight, slim HMD with an IPD adjustment mechanism. In addition, conventional IPD adjustment mechanisms may have difficulty locating and operating among the various controls and components within a conventional HMD.

[0014] The devices and systems described herein provide a lightweight, slim HMD while offering an IPD adjustment mechanism. Furthermore, the optical modules can move independently and / or simultaneously to improve alignment with the user's IPD. For example, the HMD may include a frame and a display. The display may include the optical modules. The HMD may include an adjustment mechanism extending between the optical modules, such that the adjustment mechanism can simultaneously adjust the positioning of the optical modules. The IPD adjustment mechanism can properly position each optical module so that the user only needs to adjust one optical module to automatically or simultaneously adjust the other optical module. Simultaneous adjustment prevents the user from having to adjust two optical modules independently. Independent adjustment may require more time and effort and may lead to an increased probability of adjustment. In some examples, the IPD adjustment mechanism may include actuators, motion transmission components, and guides coupled to the optical modules. In some examples, the IPD adjustment mechanism described herein may include racks and pinions, a pair of lead screws, cables, rods, pulleys, and / or gears configured to move the optical modules simultaneously and accurately.

[0015] The slim, low-profile motion transmission member of the adjustment mechanism extends from a first longitudinal end to a second longitudinal end of the mechanism and transmits motion from the first longitudinal end to the second longitudinal end. Therefore, the adjustment mechanism can be offset within the HMD. For example, the adjustment mechanism can be eccentrically positioned, such as at the longitudinal ends of the HMD. Furthermore, the low-profile motion transmission member allows for a slimmer profile of the HMD and expands the available space for other components of the HMD, particularly around the center or midpoint of the device.

[0016] To allow the user's face to form a contour, the optical modules can be offset from each other to match the contour. Thus, the optical modules can be non-coplanar. The adjustment mechanism can adjust the display along non-parallel and / or non-collinear paths, allowing the HMD to bend to fit the face and accommodate two displays adjusted along the same curvature.

[0017] The following text is for reference only. Figures 1 to 11 These examples, and others, are discussed. However, those skilled in the art will readily understand that the detailed descriptions given herein with respect to the accompanying drawings are for illustrative purposes only and should not be construed as limiting. Furthermore, as used herein, a system, method, article, component, feature, or sub-feature including at least one of the first, second, or third options should be understood to refer to a system, method, article, component, feature, or sub-feature that may include one option of each listed option (e.g., only one first option, only one second option, only one third option), multiple options of a single listed option (e.g., two or more first options), two options simultaneously (e.g., one first option and one second option), or combinations thereof (e.g., two first options and one second option).

[0018] Figure 1 A perspective view illustrating an example of a head-mounted display device (HMD) 100 is shown, which includes a display portion 102, a frame 104, a face mount 106, and one or more mounting arms 112a, 112b attached to the frame 104. The HMD 100 can be configured to be mounted on a user's head. The HMD 100 can be configured to display media to the user. The HMD 100 can be configured to provide a comfortable user experience. In some examples, the components of the HMD may include a variety of polymers, ceramics, metals, or composite materials. Materials used to construct the components of the HMD 100 may include silicone, foam, fabric, aluminum, steel, plastics, and / or other materials.

[0019] Display portion 102 may be at least partially positioned within or on frame 104. Display portion 102 may be configured to present augmented reality visualization, virtual reality visualization, visual media, or another suitable visualization to a user. For example, visual media may include video, live stream, website, recording, virtual reality setup, television, or other forms of visual media. Display portion 102 may include one or more optical lenses, optical modules, or displays configured to be positioned in front of the user's eyes. The optical module of display portion 102 may be a screen. The optical module may be an organic light-emitting diode (OLED) screen, a light-emitting diode (LED) screen, a liquid crystal display (LCD) screen, or another type of screen. In some examples, the optical module may include uncorrected lenses, transparent windows, or reflective materials. In some examples, light from the optical module may travel through lenses before being perceived by the user. The optical module may facilitate a desired user experience by producing high-quality, pleasant, and clear media for the user to perceive.

[0020] Frame 104 may be the housing of display portion 102. Frame 104 may correspond to the contours of a user's face. In some examples, frame 104 may be angled. Frame 104 may include a first lateral side 105, a second lateral side 105b, and a central region 103. For example, as shown, the first lateral side 105a may be angled toward the central region 103. The second lateral side 105b may also be angled toward the central region 103. The first lateral side 105a and the second lateral side 105b may be on different planes or non-coplanar. In some examples, frame 104 may curve from the first side 105a to the second side 105b. The central region 103 may similarly be curved. Frame 104 may have a constant radius. Frame 104 may have a curve defined by a complex curve having a radius of curvature that varies through the curve.

[0021] The first lateral side 105a and the second lateral side 105b may be symmetrical about the central region 103. The first lateral side 105a and the second lateral side 105b may be mirror images of each other from the central region 103.

[0022] The central region 103 may define the angle between the first side 105a and the second side 105b. The central region 103 may define the curvature of the frame 104. The central region 103 may be rounded. The central region 103 may define a continuous curved surface between the first lateral side 105a and the second lateral side 105b.

[0023] The frame may include a nose piece 110. The nose piece 110 may be configured to conform to the shape of a user's nose. The nose piece 110 may be configured to rest on the user's nose. The nose piece 110 may be configured to support at least a portion of the weight of the HMD 100.

[0024] The nose piece 110 may be aligned with the central region 103. For example, the nose piece 110 and the central region 103 may be vertically aligned. The nose piece 110 may include a padding portion or a contour portion. In some examples, the nose piece 110 may be at least a combination of a padding portion and a contour portion.

[0025] The face engagement portion 106 may be physically attached to the frame 104. In some examples, the face engagement portion 106 may be integrated with the frame 104. The face engagement portion 106 may extend from the display portion 102 and / or the frame 104 toward the user's head and face. The face engagement portion 106 provides engagement between the user's head and the frame 104. For example, the face engagement portion 106 may be configured to maintain an appropriate and comfortable distance between the display portion 102 and the user's face (e.g., the user's eyes). The face engagement portion 106 may include portions configured to fit, contact, or press against an area of ​​the user's face. The face engagement portion 106 may include portions configured to engage or obscure the user's face.

[0026] One or more fixing arms 112a, 112b can secure the HMD 100 relative to a user's head. The one or more fixing arms 112a, 112b can be connected to the display portion 102 or the frame 104 and extend distally toward the rear of the user's head. The one or more fixing arms 112a, 112b can be configured to secure the display portion 102 or the frame 104 relative to the user's head in a certain position (e.g., such that the display portion 102 is held in front of the user's eyes). The one or more fixing arms 112a, 112b can be configured to support at least a portion of the weight of the HMD 100. The one or more fixing arms 112a, 112b can extend above the user's ears. In some examples, the one or more fixing arms 112a, 112b can rest on the user's ears to secure the HMD 100 via friction between the one or more fixing arms 112a, 112b and the user's head. In some examples, one or more fixing arms 112a, 112b can apply opposing pressures to both sides of the user's head to secure the HMD 100 to the user's head.

[0027] In some examples, the HMD 100 may also include various electrical and electronic components. For example, the HMD 100 may include one or more processors, speakers, batteries, screens, projectors, motors, linear actuators, cameras, sensors, wires, and other components. These various electrical and electronic components may be housed within various portions of the HMD 100. For example, at least one of the mounting arms 112a and 112b may include a battery and / or a speaker. The display portion 102 may include a processor, camera, and screen. Electronic components housed in the mounting arms 112a and 112b may be electrically connected to electronic components housed within the display portion 102. The electrical and electronic components included in the HMD 100 can create a desired immersive user experience.

[0028] Figure 1 Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 1 Examples of devices, features, components, and parts are shown.

[0029] Figure 2 and Figure 3 Rear and top views illustrate an example of an HMD 100 including a frame 104, a display 120, and an interpupillary distance (IPD) adjustment mechanism 130.

[0030] Display 120 may be disposed within frame 104. Display 120 may be integrated into frame 104. Display 120 may include one or more of optical modules 122a, 122b configured to present images to a user. For example, display portion 120 may include a right optical module 122a and a left optical module 122b. Right optical module 122a may correspond to the user's right eye, and left optical module 122b may correspond to the user's left eye. Right optical module 122a and left optical module 122b may be positioned to receive nose piece 110. Right optical module 122a may define a first viewing plane. Left optical module 122b may define a second viewing plane. Right optical module 122a and left optical module 122b may be angled relative to each other (e.g., a non-zero angle) to position the optical modules substantially parallel to the surface of the user's face. In some examples, optical modules 122a, 122b may be non-parallel, offset, and / or non-coplanar relative to each other. Optical modules 122a and 122b may each have a lens barrel having a display and a lens that presents an image from the display to the user's corresponding eye. In some examples, optical modules 122a and 122b may each be or include a screen. In some examples, optical modules 122a and 122b may each be an OLED screen, an LED screen, an LCD screen, or another type of screen. In some examples, optical modules 122a and 122b may each be or include a surface on which an image is projected. In some examples, optical modules 122a and 122b may each include a transparent window or lens, a corrective lens, etc. In some examples, light from optical modules 122a and 122b may travel through the lens before being perceived by the user. The lens may be configured to alter the characteristics of the light from optical modules 122a and 122b. For example, the lens may be configured to magnify or focus the medium generated at optical modules 122a and 122b. In some examples, the lens can be configured to alter certain portions of the media generated at optical modules 122a, 122b. For example, the lens can change the proportions of the media generated at optical modules 122a, 122b. The lens and optical modules 122a, 122b can enhance the desired user experience by generating a high-quality, pleasing, and clear media for the user to perceive. To accommodate users with different interpupillary distances, the optical modules 122a, 122b of the display 120 can be adjusted by an IPD adjuster or adjustment mechanism 130.

[0031] IPD adjustment mechanism 130 may include actuator 129, motion transmission member 131, right guide 134a, and left guide 134b. IPD adjustment mechanism 130 may be configured to adjust the IPD distance between optical modules 122a and 122b. In some examples, the IPD adjustment mechanism may be configured to simultaneously adjust optical modules 122a and 122b to adjust the IPD distance between them.

[0032] Actuator 129 may be located outside the internal central region 124. In some examples, actuator 129 may be located proximal to one of the right optical modules 122a or the left optical module 122b. Therefore, actuator 129 may be located distal to the other of the right optical module 122a or the left optical module 122b. Actuator 129 may be configured to cause movement within the IPD adjustment mechanism 130. Actuator 129 may be configured to cause movement of the motion transmission member 131. Actuator 129 may be configured to cause movement of the optical modules 122a, 122b. Actuator 129 may include a motor, gear set, or other components configured to generate movement. For example, actuator 129 may include a rack and pinion mechanism, a pair of lead screws, a cable, a rod, a pulley, and / or a gear configured to generate movement.

[0033] Motion transmission member 131 may extend from actuator 129. Motion transmission member 131 may extend between optical modules 122a, 122b. Motion transmission member 131 may extend between guides 134a, 134b. Motion transmission member 131 may extend from actuator 129 to left light guide 134b. In some examples, motion transmission member 131 may extend from actuator 129 to right light guide 134a. Motion transmission member 131 may be configured to transmit motion from actuator 129 to guides 134a, 134b. Motion transmission member 131 may be configured to transmit motion from actuator 129 to guides 134a, 134b simultaneously.

[0034] The right guide 134a can connect the right optical module 122a to the IPD adjustment mechanism 130. In some examples, the right guide 134a can rigidly connect the right optical module 122a to the IPD adjustment mechanism 130. In some examples, the right guide 134a can connect the right optical module 122a to the actuator 129. In some examples, the right guide 134a can connect the right optical module 122a to the motion transmission member 131. The left guide 134b can connect the left optical module 122b to the IPD adjustment mechanism 130. In some examples, the left guide 134b can rigidly connect the left optical module 122b to the IPD adjustment mechanism 130. In some examples, the left guide 134b can connect the left optical module 122b to the motion transmission member 131. The guides 134a and 134b can be positioned outside the internal central region 124. Guides 134a and 134b may be positioned adjacent to optical modules 122a and 122b. Guides 134a and 134b may be angled relative to each other (e.g., a non-zero angle) to position optical modules 122a and 122b parallel to the surface of the user's face. In some examples, guides 134a and 134b may be non-parallel, offset, and / or non-coplanar relative to each other. Guides 134a and 134b may be configured to cause movement of optical modules 122a and 122b.

[0035] Frame 104 may include an internal central region 124. The internal central region 124 may be located between optical modules 122a, 122b. The internal central region 124 may be above optical modules 122a, 122b. Motion transmission member 131 may pass through the internal central region 124. In some examples, other components of the IPD adjustment mechanism 130 are not located within the internal central region 124. For example, actuator 129 may be located outside the internal central region 124. In some examples, components of the adjustment mechanism 130 within the internal central region 124 occupy minimal space. The internal central region 124 may include angles, curves, or other shapes based on the configuration of optical modules 122a, 122b. Frame 104 may include one or more components 126 of HMD 100 within the internal central region 124.

[0036] Component 126 may include a fan, motherboard, sensor, or other components of HMD 100. Component 126 may be positioned within an internal central region 124 without interfering with the IPD adjustment mechanism 130. In some examples, component 126 may be positioned above, below, in front of, or behind the motion transmission member 131 within the internal central region 124. In some examples, such as when the internal central region 124 defines an angle, component 126 may be positioned on either side of the angle or may be positioned within the linear space of the angle. In some examples, such as when the internal central region 124 defines a curve, component may be positioned within the space defined by the curve, or component 126 may define a similar curve.

[0037] Figure 2 and Figure 3 Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 2 and Figure 3 Examples of devices, features, components, and parts are shown.

[0038] Figure 4 An example of an IPD adjustment mechanism 130 connected to optical modules 122a, 112b is shown. Figure 5 A close-up of the actuator 129 of the IPD adjustment mechanism 130 is shown. Optical modules 122a and 122b present an image to the user. Optical modules 122a and 122b can be substantially similar to Figure 2 and Figure 3 The optical modules 122a and 122b. The IPD adjustment mechanism 130 may include an actuator 129, a motion transmission member 131, guides 134a and 134b, and a housing 146. The guides 134a and 134b may be substantially similar to Figure 2 and Figure 3 The guide components 134a and 134b.

[0039] Actuator 129 may be configured to cause translation of optical modules 122a, 122b. In one example, guides 134a, 134b may be coupled to optical modules 122a, 122b based on the movement of actuator 129 and cause these optical modules to translate toward or away from each other. Actuator 129 may be a rack and pinion. Actuator 129 may include a circular gear 142 (e.g., a pinion) and a pair of linear gears 144a, 144b (e.g., a rack). In some examples, actuator 129 may be positioned proximal to one of the right optical module 122a or the left optical module 122b. Therefore, actuator 129 may be positioned distal to the other of the right optical module 122a or the left optical module 122b. In some examples, actuator 129 may be positioned above or below one of the right optical module 122a or the left optical module 122b.

[0040] The circular gear 142 can rotate about or around the central post 143 of the IPD adjustment mechanism 130 or actuator 129. In some examples, the size of the circular gear 142 can be set such that the linear gears 144a and 144b do not engage with each other during actuation. The first linear gear 144a can engage with the upper portion of the circular gear 142, and the second linear gear 144b can engage with the lower portion of the circular gear 142 (and vice versa). In other words, one of the linear gears 144a and 144b engages with the circular gear 142 opposite to the other.

[0041] The first linear gear 144a may be disposed on the first side or top side of the IPD adjustment mechanism 130 or actuator 129. The second linear gear 144b may be disposed on the second side, opposite side, or bottom side of the IPD adjustment mechanism 130 or actuator 129. The linear gears 144a and 144b may each be coupled to corresponding guides 134a and 134b. For example, the first linear gear 144a may be coupled to the right guide 134a, and the second linear gear 144b may be coupled to the left guide 134b. In some examples, the first linear gear 144a may be directly coupled to the right guide 134a, while the second linear gear 144b may be coupled to the left guide 134b via the motion transmission member 131. When the IPD adjustment mechanism 130 is actuated, the circular gear 142 may rotate, and the linear gears 144a and 144b may translate in alternating directions.

[0042] Housing 146 may enclose components of IPD adjustment mechanism 130. Housing 146 may completely or partially enclose actuator 129. Housing 146 may completely or partially enclose a portion of motion transmission member 131. In some examples, housing 146 may be positioned proximal to one of the right optical module 122a or left optical module 122b. Therefore, housing 146 may be positioned distal to the other of the right optical module 122a or left optical module 122b. In some examples, housing 146 may be positioned above or below one of the right optical module 122a or left optical module 122b. In some examples, damping elements (e.g., grease or other damping materials) may be distributed within or around actuator 129 within housing 146. The damping elements may be configured to attenuate energy from or in the event of an impact (e.g., due to the drop of HMD 100). The damping element can be configured to attenuate the impact or energy from the impact that would otherwise be received by the optical modules 122a, 122b.

[0043] In some examples, a portion 132 of the housing 146 may include a locking device 148. The locking device 148 may be configured to engage with a circular gear 142. In some examples, the locking device 148 may be used to provide tactile stops or resistance at certain intervals or locations when the IPD adjustment mechanism 130 (e.g., actuator 129) is operated and the optical modules 122a, 122b are translated.

[0044] Motion transmission member 131 may be configured to transmit motion from actuator 129 to guides 134a, 134b. Therefore, motion transmission member 131 may be configured to transmit motion from actuator 129 to optical modules 122a, 122b. Motion transmission member 131 may be configured to transmit longitudinal motion. Motion transmission member 131 may extend from actuator 129. Motion transmission member 131 may extend between optical modules 122a, 122b. Motion transmission member 131 may extend between guides 134a, 134b. Motion transmission member 131 may extend from actuator 129 to left light guide 134b. In some examples, motion transmission member 131 may extend from actuator 129 to right light guide 134a. In some examples, motion transmission member 131 may be coupled to one of linear gears 144a, 144b. In some examples, motion transmission member 131 can be used to transmit motion of the second linear gear 144b to the left guide 134b. Motion transmission member 131 can be configured to simultaneously transmit motion from actuator 129 to at least one of guides 134a and 134b. In some examples, motion transmission member 131 can be used to transmit motion of the linear gear 144b to the left guide 134b.

[0045] Motion transmission member 131 may be a longitudinally elongated member. Motion transmission member 131 may have a low profile. Motion transmission member 131 may be flexible. Motion transmission member 131 may be configured to bend or coil around an intermediate component of HMD 100. For example, motion transmission member 131 may bend or coil around a component of HMD 100 positioned between optical modules 122a, 122b. In some examples, motion transmission member 131 may include a cable. In some examples, motion transmission member 131 may include a stainless steel (SUS) alloy, titanium alloy, composite material, polymer, or a combination thereof. Motion transmission member 131 may include a support tube 133.

[0046] Support tube 133 may receive motion transmission member 131. Support tube 133 may surround at least a portion of motion transmission member 131. Support tube 133 may extend between guides 134a, 134b. Support tube 133 may define a path for motion transmission member 131 around other components of HMD 100. Support tube 133 may be flexible. Support tube 133 may be rigid. Support tube 133 may include flexible and rigid portions. Support tube 133 may be configured to protect motion transmission member 131. In some examples, damping elements may be distributed within or around support tube 133. Damping elements within support tube 133 may help attenuate and smooth the motion of motion transmission member 131, which may pass through support tube 133. Damping elements may also attenuate energy from impact events (e.g., due to dropping HMD 100). Damping elements may attenuate impacts that might otherwise be received by optical modules 122a, 122b.

[0047] IPD adjustment mechanism 130 may include shock-absorbing element 136. Shock-absorbing element 136 may be disposed at the connection between motion transmission member 131 and left guide 134b. Shock-absorbing element 136 may be configured to attenuate energy from an impact event (e.g., due to the drop of HMD 100). Shock-absorbing element 136 may attenuate impacts that would otherwise be received by optical modules 122a, 122b. For example, shock-absorbing element 136 may include spring 138. Spring 138 may further be used to position left guide 134b toward the leftmost side (e.g., as...). Figure 4 The illustrated offset ("left side") relative to the viewing plane causes the movement via the IPD adjustment mechanism 130 to be attenuated.

[0048] To actuate, operate, or move the optical modules 122a, 122b, the circular gear 142 is rotatable, and the guides 134a, 134b are translatable toward or away from each other. This movement can be adjusted by the user's IPD distance by simultaneously adjusting the positioning of the optical modules 122b, 122a toward or away from each other. The optical modules 122a, 122b can be translated from a first positioning to a second positioning. The IPD adjustment mechanism 130 can be manually actuated by the user. For example, the user can rotate a turntable to rotate the circular gear 142. In some examples, the IPD adjustment mechanism can be actuated by a motor. For example, the user can press a button to rotate the circular gear 142. In some examples, the user can grasp the optical modules 122a, 122b and translate them toward or away from each other. In some examples, the movement of the optical modules 122a, 122b can be simultaneous; for example, the user can move the optical modules 122a, 122b toward or away from each other by substantially similar distances.

[0049] The positioning of actuator 129 and / or housing 146 and motion transmission member 131 avoids or prevents spatial conflicts that would otherwise exist between IPD adjustment mechanism 130 and additional components and mechanisms of HMD 100. This allows for more efficient use of internal space and increases the compactness of HMD 100. For example, the offset positioning of actuator 129 and / or housing 146 and the space freed up by motion transmission member 131 extending between optical modules 122a, 122b can provide space for additional hardware such as sensors, processors, or cooling mechanisms without compromising the slim profile, shape, and / or functionality of HMD 100.

[0050] Figure 4 and Figure 5 Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 4 and Figure 5 Examples of devices, features, components, and parts are shown.

[0051] Figures 6 to 11 An example of an IPD adjustment mechanism is illustrated, which may include features similar to the IPD adjustment mechanism 130 described above. Therefore, the same features are indicated by the same reference numerals, wherein the leading numerals increment to "2-6". For example, Figures 6 to 11 Examples depicted include IPD adjustment mechanisms 230, 330, etc., which may be similar in some respects to Figures 1 to 4 IPD adjustment mechanism 130.

[0052] Therefore, the relevant public information regarding the characteristics of similar identifiers described above may not be repeated below. Furthermore, Figures 1 to 5 Specific features of the IPD adjustment mechanism 130 and related components shown may not be shown or identified by reference numerals in the accompanying drawings or discussed in detail in the following written description. However, such features may obviously be the same as or substantially the same as features depicted in other examples and / or described with respect to such examples. Therefore, the relevant descriptions of such features also apply to... Figures 6 to 11 Features of the IPD adjustment mechanisms 230, 330, etc. and related components described.

[0053] about Figures 1 to 5 Any suitable combination of the features and variations described in the illustrated IPD adjustment mechanism 130 and related components can be used with Figures 6 to 11The IPD adjustment mechanisms 230, 330, etc., are used together with related components, and vice versa. This mode of disclosure also applies to other examples depicted in the following figures and described below, where the leading digits may be further incremented.

[0054] Figure 6 An example of an IPD adjustment mechanism 230 is illustrated. The IPD adjustment mechanism 230 may include an actuator 229, a motion transmission member 231, a right guide 234a, a left guide 234b, and a housing 246. The guides 234a and 234b may be configured to be coupled to an optical module of the HMD.

[0055] Actuator 229 may be configured to cause translation of guides 234a, 234b. In one example, guides 234a, 234b may be coupled to and translate the optical module of the HMD. Actuator 229 may be a rack and pinion. Actuator 229 may include a circular gear 242 (e.g., a pinion) and a pair of linear gears 244a, 244b (e.g., a rack). In some examples, actuator 229 may be positioned proximal to one of the right guide 234a or the left guide 234b. Therefore, actuator 229 may be positioned distal to the other of the right guide 234a or the left guide 234b. In some examples, actuator 229 may be positioned above or below one of the right guide 234a or the left guide 234b.

[0056] The circular gear 242 can rotate about or around the central post of the IPD adjustment mechanism 230 or the actuator 229. In some examples, the size of the circular gear 242 can be set such that the linear gears 244a and 244b do not engage with each other during actuation. The first linear gear 244a can engage with the upper portion of the circular gear 242, and the second linear gear 244b can engage with the lower portion of the circular gear 242 (and vice versa). In other words, one of the linear gears 244a and 244b engages with the circular gear 242 opposite to the other.

[0057] The first linear gear 244a may be disposed on the first side or top side of the IPD adjustment mechanism 230 or the actuator 229. The second linear gear 244b may be disposed on the second side, opposite side, or bottom side of the IPD adjustment mechanism 230 or the actuator 229. The linear gears 244a and 244b may each be connected to a corresponding guide 234a or 234b. For example, the first linear gear 244a may be connected to the right guide 234a, and the second linear gear 244b may be connected to the left guide 234b. In some examples, the first linear gear 244a may be directly connected to the right guide 234a, while the second linear gear 244b is connected to the left guide 234b via the motion transmission member 231. In the illustrated example, the second linear gear 244b may be positioned at an angle relative to the first linear gear 244a.

[0058] Housing 146 may enclose components of IPD adjustment mechanism 130. Housing 246 may fully or partially enclose actuator 229. Housing 246 may fully or partially enclose a portion of motion transmission member 231. In some examples, housing 246 may be positioned proximal to one of right guide 234a or left guide 234b. Therefore, housing 246 may be positioned distal to the other of right guide 234a or left guide 234b. In some examples, housing 246 may be positioned above or below one of right or left optical modules. In some examples, damping elements (e.g., grease or other damping materials) may be distributed within or around actuator 229 within housing 246. The damping elements may be configured to attenuate impact events (e.g., due to falling HMD). The damping elements may be configured to attenuate impacts that would otherwise be received by the optical module. In some examples, housing 146 may include opening 248. The opening 248 may receive a portion of the right guide 234a (as shown) or the left guide 234b. In some examples, the opening 248 may allow one of the guides 234a and 234b to be directly coupled to one of the linear gears 244a and 244b.

[0059] Motion transmission member 231 may be configured to transmit motion from actuator 229 to guides 234a, 234b. Therefore, motion transmission member 231 may be configured to transmit motion from actuator 229 to at least one of guides 234a, 234b. Motion transmission member 231 may be configured to transmit longitudinal motion. Motion transmission member 231 may extend from actuator 229. Motion transmission member 231 may extend between guides 234a, 234b (e.g., between optical modules of an HMD). Motion transmission member 231 may extend from actuator 129 to left light guide 134b. In some examples, motion transmission member 231 may extend from actuator 229 to right light guide 234a. In some examples, motion transmission member 231 may be coupled to one of linear gears 244a, 244b. In some examples, motion transmission member 231 may be used to transmit motion of a second linear gear 244b to left guide 234b. Motion transmission member 131 may be configured to simultaneously transmit motion from actuator 229 to at least one of guides 234a, 234b. Motion transmission member 231 may be a longitudinally elongated member. Motion transmission member 231 may have a low profile. Motion transmission member 231 may be flexible. As seen in the illustrated examples, motion transmission member 231 may be bent or folded such that the angle of the longitudinal axis of the housing 246 of IPD adjustment mechanism 230 and / or actuator 229 is offset relative to the angle of the longitudinal axis of motion transmission member 231. Motion transmission member 231 may be configured to bend or coil around an intermediate component of the HMD. For example, motion transmission member 231 may bend or coil around a component of the HMD positioned between guides 234a, 234b (e.g., between optical modules). In some examples, motion transmission member 231 may include a cable. In some examples, motion transmission member 231 may include a stainless steel (SUS) alloy, titanium alloy, composite material, polymer, or a combination thereof.

[0060] The motion transmission member 231 may include a support tube 233. The support tube 233 may receive the motion transmission member 231. The support tube 233 may surround at least a portion of the motion transmission member 231. The support tube 233 may extend between guides 234a, 234b. The support tube 233 may define a path for the motion transmission member 231 to pass around other parts of the HMD. In some examples, the support tube 233 may define a path having an angle, curve, or other non-linear configuration. The support tube 233 may be flexible. The support tube 233 may be rigid. The support tube 233 may include flexible and rigid portions. The support tube 233 may be configured to protect the motion transmission member 231. In some examples, damping elements may be distributed within or around the support tube 233. The damping elements within the support tube 233 may help attenuate and smooth the motion of the motion transmission member 231, which passes through the support tube 233. The damping elements may also attenuate impact events (e.g., due to falling onto the HMD). Damping elements can attenuate shocks that might otherwise be received by the optical module.

[0061] In some examples, the angle of actuator 229 and / or the angle of motion transmission member 231 allows the display to move at an angle relative to each other. In some cases, this is for the curved geometry of the HMD (e.g., see...). Figure 1 Alignment with the natural curvature of the user's face and / or pupils can be advantageous. Therefore, the IPD adjustment mechanism 230 can be used to enhance comfort, visual alignment, and the overall user experience. The position and / or angle of the actuator 229 and / or housing 146, as well as the motion transmission member 231, can avoid or prevent spatial conflicts that would otherwise exist between the IPD adjustment mechanism 230 and additional components and mechanisms of the HMD. This allows for more efficient use of internal space and increases the compactness of the HMD. For example, the space freed up by the offset positioning of the actuator 229 and / or housing 246 and the motion transmission member 231 extending between the optical modules can provide space for additional hardware such as sensors, processors, or cooling mechanisms without compromising the slim profile, shape, and / or functionality of the HMD.

[0062] Figure 6 Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 5 Examples of devices, features, components, and parts are shown.

[0063] Figure 7An example of an IPD adjustment mechanism 330, a right optical module 322a, and a left optical module 322b is illustrated. The IPD adjustment mechanism 330 may include an actuator 329, a motion transmission member 331, and a support tube 333. The IPD adjustment mechanism 330 may be substantially similar to the IPD adjustment mechanism 230. More specifically, the IPD adjustment mechanism 330 may be a mirror image of the IPD adjustment mechanism 230. The actuator 329, the motion transmission member 331, and the support tube 333 may be substantially similar to the actuator 229, the motion transmission member 231, and the support tube 233, respectively.

[0064] In the illustrated example, actuator 329 may be positioned proximal to the left optical module 322b. Actuator 329 may be positioned above the left optical module 322b. Motion transmission member 331 and support tube 333 may extend from actuator 329 proximal to the left optical module 322b to right optical module 322a. When motion transmission member 331 and support tube 333 extend between the left optical module 322b and right optical module 322a, motion transmission member 331 and support tube 333 may include angles, curves, or other nonlinear configurations.

[0065] Similar to the IPD adjustment mechanism 230, the positioning of the actuator 329, motion transmission member 331, and support tube 333 can be advantageous for the HMD. In some examples, the angle of the motion transmission member 331 allows the optical modules 322a and 322b to move relative to each other at an angle. This is beneficial for the curved geometry of the HMD (e.g., see...). Figure 1 Alignment with the natural curvature of the user's face and / or pupils can be advantageous. Therefore, the IPD adjustment mechanism 330 can be used to enhance comfort, visual alignment, and the overall user experience. The position and / or angle of the actuator 329 and motion transmission member 331 can avoid or prevent spatial conflicts that would otherwise exist between the IPD adjustment mechanism 330 and additional components and mechanisms of the HMD. This allows for more efficient use of internal space and increases the compactness of the HMD. For example, the space freed up by the offset positioning of the actuator 329 and the motion transmission member 331 extending between the optical modules 322a, 322b can provide space for additional hardware such as sensors, processors, or cooling mechanisms without compromising the slim profile, shape, and / or functionality of the HMD. Furthermore, the IPD adjustment mechanism 330 offers alternative configurations of components compared to other IPD adjustment mechanisms described herein.

[0066] Figure 7Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 6 Examples of devices, features, components, and parts are shown.

[0067] Figure 8 An example of an IPD adjustment mechanism 430 is illustrated. The IPD adjustment mechanism 430 may include a motion transmission member 431, a right guide 434a, and a left guide 434b.

[0068] The IDP adjustment mechanism 430 can be configured to cause translation of the guides 434a, 434b. The guides 434a, 434b can be substantially similar to one or more of guides 134a, 134b, 234a, and / or 234b. In one example, the guides 434a, 434b can be coupled to and translate the optical module of the HMD.

[0069] The motion transmission member 431 can be configured to transmit motion between the guides 434a and 434b. Therefore, the motion transmission member 431 can be configured to transfer motion from one optical module to another. The motion transmission member 431 can be configured to transmit longitudinal motion. The motion transmission member 431 can extend between the right guide 434a and the left guide 434b.

[0070] Motion transmission member 431 may be a longitudinally elongated member. Motion transmission member 431 may have a low profile. Motion transmission member 431 may be flexible or pliable. Motion transmission member 431 may be configured in a non-linear or curved configuration. Motion transmission member 431 may be configured to bend, bend, or coil around an intermediate component of the HMD. For example, motion transmission member 431 may bend, bend, or coil around a component of the HMD positioned between guides 434a, 434b. Bending, bending, or coiling of motion transmission member 431 can alleviate space constraints and allow for more efficient and effective use of available space within the HMD. In some examples, motion transmission member 431 may include cables. In some examples, motion transmission member 431 may include stainless steel (SUS) alloys, titanium alloys, composite materials, polymers, or combinations thereof. In some examples, motion transmission member 431 may include retaining clamps to aid in guiding motion transmission member 431. Retaining clamps may be configured to retain the positioning of motion transmission member 431 while allowing motion transmission member 431 to transmit motion. In some examples, motion transmission member 431 includes a support tube surrounding motion transmission member 431. In some examples, the support tube may be positioned using a retaining clamp. In some examples, a retaining clamp or end fitting connects motion transmission member 431 to right guide 434a and left guide 434b.

[0071] Figure 8 Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 8 Examples of devices, features, components, and parts are shown.

[0072] Figure 9 An example of an IPD adjustment mechanism 530 is illustrated. The IPD adjustment mechanism 530 may include an actuator 529 and a motion transmission member 531. The actuator 529 may include a body 554, a first pin / slot connector 552a, a second pin / slot connector 552b, and a pivot 550.

[0073] The main body 554 is rotatable about or around a pivot 550 of the IPD adjustment mechanism 530 or actuator 529. A first pin / slot connector 552a may be disposed on a first side or bottom side of the IPD adjustment mechanism 530 or actuator 529. A second pin / slot connector 552b may be disposed on a second side, opposite side, or top side of the IPD adjustment mechanism 530 or actuator 529. The first pin / slot connector 552a may be coupled to the right guide 534a of the optical module. The second pin / slot connector 552b may be coupled to the left guide 534b via a motion transmission member 531. The second pin / slot connector 552b may be coupled to the end of the motion transmission member 531 such that the end of the motion transmission member 531 is linearly constrained within the second pin / slot connector 552b.

[0074] In operation, rotation of the body 554 can create a lever effect or cause the second pin / slot connector 552b to pivot about pivot 550. When the first pin / slot connector 552a translates and pivots about pivot 550, it can push, pull, or otherwise translate the opposing longitudinal ends of the body 554 at the second pin / slot connector 552b coupled to the motion transmission member 531, and otherwise apply tension to the motion transmission member 531. For example, the first pin / slot connector 552a can pivot about pivot 550 and translate motion to the second pin / slot connector 552b. This translation can provide pulling or pushing motion to the motion transmission member 531. In some examples, the horizontal movement of the right guide 534a can be in the opposite direction to the horizontal movement of the left guide 534b.

[0075] In some examples, actuator 529 may include a housing. The housing may enclose components of the IPD adjustment mechanism 530. The housing may completely or partially enclose actuator 529. In some examples, the housing may be configured such that the first pin / slot connector 552a and / or the second pin / slot connector 552b can extend out of the housing. The housing may be configured such that body 554 can pivot about pivot 550 inside and / or outside the housing. The housing may completely or partially enclose a portion of motion transmission member 531. In some examples, the housing may be located proximal to the edge of the HMD.

[0076] The motion transmission member 531 can be configured to transmit motion from the actuator 529. For example, the motion transmission member 531 can be configured to transmit motion from the second pin / slot connector 552b. The motion transmission member 531 can be configured to transmit longitudinal motion. The motion transmission member 531 can extend from the second pin / slot connector 552b. The motion transmission member 531 can be configured to simultaneously transmit motion from the actuator 529 to different areas of the HMD.

[0077] Motion transmission member 531 may be a longitudinally elongated member. Motion transmission member 531 may have a low profile. Motion transmission member 531 may be flexible. Motion transmission member 531 may be configured to bend or coil around an intermediate component of the HMD. For example, motion transmission member 531 may bend or coil around a component of the HMD. In some examples, the actuator 529 and motion transmission member 531 may be configured to avoid the intermediate component of the HMD. In some examples, motion transmission member 531 may include a cable. In some examples, motion transmission member 531 may include a stainless steel (SUS) alloy, titanium alloy, composite material, polymer, or a combination thereof. Motion transmission member 531 may include a support tube.

[0078] The positioning of actuator 529 and motion transmission member 531 avoids or eliminates spatial conflicts that would otherwise exist between IPD adjustment mechanism 530 and additional components and mechanisms of the HMD. This allows for more efficient use of internal space and increases the compactness of the HMD. For example, the space freed up by the offset positioning of actuator 529 and the motion transmission member 531 extending through the HMD can provide space for additional hardware such as sensors, processors, or cooling mechanisms without compromising the slim profile, shape, and / or functionality of the HMD.

[0079] Figure 9 Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 9 Examples of devices, features, components, and parts are shown.

[0080] Figure 10 An example of an IPD adjustment mechanism 630 is illustrated. The IPD adjustment mechanism 630 may include a right lead screw 664a, a left lead screw 664b, a shaft 666, a right guide 634a, and a left guide 634b. The guides 634a and 634b may be configured to be coupled to an optical module.

[0081] The right lead screw 664a may be disposed on the first lateral side of the IPD adjustment mechanism 630. The left lead screw 664b may be disposed on the second lateral side of the IPD adjustment mechanism 630. The right lead screw 664a may be connected to the shaft 666 via the connecting member 668a. The left lead screw 664b may be connected to the shaft 666 via the connecting member 668b. The lead screws 664a and 664b are rotatably fixed to the shaft 666. For example, the lead screws 664a and 664b and the shaft 666 may rotate as a single body or component. The lead screws 664a and 664b may be multi-starting lead screws that can be reverse-driven. In some examples, the lead screws 664a and 664a may be coplanar and parallel and / or offset from each other. In at least one example, each of the lead screws 664a and 664b may be connected to a corresponding guide among the guides 634a and 634a. For example, the right lead screw 664a can be connected to the right guide 634a, and the left lead screw 664b can be connected to the left guide 634b. In some examples, the threads of the lead screws 664a and 664b can be opposite, such that rotation of the flexible shaft 666 and the lead screws 664a and 664b can simultaneously cause the guides 634a and 634b to translate away from or toward each other.

[0082] The right lead screw 664a may be partially or completely enclosed in the right lead screw housing 665a. The left lead screw 664b may be partially or completely enclosed in the left lead screw housing 665b. The lead screw housings 665a and 665b may each include a right bearing 666a and a left bearing 666b, respectively. In some examples, the bearings 666a and 666b may be ball bearings. The bearings 666a and 666b may be located at the longitudinal ends of the lead screw housings 665a and 665b. The bearings 666a and 666b are rotatable and allow the lead screws 664a and 664b to rotate simultaneously.

[0083] Shaft 666 may extend between lead screws 664a and 664b. Shaft 666 may be configured to transmit rotational motion between lead screws 664a and 664b. Shaft 666 may be configured to connect lead screws 664a and 664b together. Shaft 666 may be flexible. Shaft 666 may be formed of a flexible material. Shaft 666 may be constructed to be curved while still maintaining torsional stiffness or effectively transmitting rotational motion.

[0084] The IPD adjustment mechanism 630 can be manually actuated by the user. In some examples, the user can rotate a turntable to manually rotate the lead screws 664a, 664b relative to the bearings 666a, 666b. The IPD adjustment mechanism 630 can be actuated by a motor. In some examples, the user can press a button to rotate one or both of the lead screws 664a, 664b relative to the bearings 666a, 666b. When actuated, the lead screws 664a, 664b and the shaft 666 can rotate relative to the bearings 666a, 666b. When the lead screws 664a, 664b and the shaft 666 rotate relative to the bearings 666a, 666b, the guides 634a, 634b can move toward or away from each other to adjust the user's IPD distance. In some examples, the user can grasp the optical modules attached to the guides 634a, 634b and move the optical modules toward or away from each other. In some examples, the movement of guides 634a, 634b and their corresponding optical modules is simultaneous, allowing the user to move only one of the optical modules or guide rods while the other optical module or guide rod moves toward or away from each other by an equal amount.

[0085] The positioning of the lead screws 664a, 664b near the guides 634a, 634b and the shaft 666 extending between the lead screws 664a, 664b avoids or prevents spatial conflicts that would otherwise exist between the IPD adjustment mechanism 630 and additional components and mechanisms of the HMD. This allows for more efficient use of internal space and increases the compactness of the HMD. For example, the space freed up by the offset positioning of the lead screws 664a, 664b and the shaft 666 extending through the HMD can provide space for additional hardware such as sensors, processors, or cooling mechanisms without compromising the slim profile, shape, and / or functionality of the HMD.

[0086] Figure 10 Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 10 Examples of devices, features, components, and parts are shown.

[0087] Figure 11 An example of an IPD adjustment mechanism 730 is illustrated. The IPD adjustment mechanism 730 may include a right lead screw 764a, a left lead screw 764b, a shaft 766, a right guide 734a, and a left guide 734b. The guides 734a and 734b may be configured to be coupled to an optical module.

[0088] The right lead screw 764a may be disposed on the first lateral side of the IPD adjustment mechanism 730. The left lead screw 764b may be disposed on the second lateral side of the IPD adjustment mechanism 730. The right lead screw 764a may be connected to the shaft 766 via the connecting member 768a. The left lead screw 764b may be connected to the shaft 766 via the connecting member 768b. The lead screws 764a and 764b are rotatably fixed to the shaft 766. For example, the lead screws 764a and 764b and the shaft 766 may rotate as a single body or component. The lead screws 764a and 764b may be multi-starting lead screws capable of reversible drive. In some examples, the lead screws 764a and 764b may be arranged relative to each other in a non-linear or non-planar configuration. For example, the lead screws 764a and 764b may be offset from the shaft 766. In some examples, the lead screws 764a and 764b may be offset from the shaft 766 by at least about 5 degrees or more. The connecting members 768a and 768b can be configured to allow the transmission of rotational motion even when the lead screws 764a and 764b are positioned at an angle. In some examples, each of the lead screws 764a and 764b can be connected to a corresponding guide among the guides 734a and 734b. For example, the right lead screw 764a can be connected to the right guide 734a, and the left lead screw 764b can be connected to the left guide 734b. The lead screws 764a and 764b can be linearly connected to the guides 734a and 734b. Therefore, if the lead screws 764a and 764b are positioned at an angle, the guides 734a and 734b can be positioned at a similar angle. The offset or angle of the lead screws 764a and 764b and / or the guides 734a and 734b can be selected to accommodate the overall curvature of the HMD and / or the user's face. In some examples, the threads of the lead screws 764a and 764b can be opposite, such that rotation of the flexible shaft 766 and the lead screws 764a and 764b can simultaneously cause the guides 734a and 734b to translate away from or toward each other.

[0089] The right lead screw 764a may be partially or completely enclosed in the right lead screw housing 765a. The left lead screw 764b may be partially or completely enclosed in the left lead screw housing 765b. The housings 765a and 765b may be angularly positioned to be substantially similar to the angles of the lead screws 764a and 764b. The lead screw housings 765a and 765b may each include a right bearing 66a and a left bearing 6676b. In some examples, the bearings 766a and 766b may be ball bearings. The bearings 766a and 766b may be located at the longitudinal ends of the lead screw housings 765a and 765b. The bearings 766a and 766b are rotatable and allow the lead screws 764a and 764b to rotate simultaneously.

[0090] Shaft 766 may extend between lead screws 764a and 764b. Shaft 766 may be configured to transmit rotational motion between lead screws 764a and 764b. Shaft 766 may be configured to connect lead screws 764a and 764b together. Shaft 766 may be flexible. Shaft 766 may be formed of a flexible material. Shaft 766 may be constructed to be curved while still maintaining torsional stiffness or effectively transmitting rotational motion.

[0091] The IPD adjustment mechanism 730 can be manually actuated by the user. In some examples, the user can rotate a turntable to manually rotate the lead screws 764a, 764b relative to the bearings 766a, 766b. The IPD adjustment mechanism 730 can be actuated by a motor. In some examples, the user can press a button to rotate one or both of the lead screws 764a, 764b relative to the bearings 766a, 766b. When actuated, the lead screws 764a, 764b and the shaft 766 can rotate relative to the bearings 766a, 766b. When the lead screws 764a, 764b and the shaft 766 rotate relative to the bearings 766a, 766b, the guides 734a, 734b can move toward or away from each other to adjust the user's IPD distance. In some examples, the user can grasp the optical modules attached to the guides 734a, 734b and move the optical modules toward or away from each other. In some examples, the movement of guides 734a, 734b and their corresponding optical modules is simultaneous, allowing the user to move only one of the optical modules or guide rods while the other optical module or guide rod moves toward or away from each other by an equal amount.

[0092] The positioning of the lead screws 64a, 6674b near the guides 734a, 734b and the shaft 766 extending between the lead screws 764a, 764b avoids or prevents spatial conflicts that would otherwise exist between the IPD adjustment mechanism 730 and additional components and mechanisms of the HMD. This allows for more efficient use of internal space and increases the compactness of the HMD. For example, the space freed up by the linear offset positioning of the lead screws 764a, 764b and the shaft 766 extending through the HMD can provide space for additional hardware such as sensors, processors, or cooling mechanisms without compromising the slim profile, shape, and / or functionality of the HMD.

[0093] Figure 11 Any of the features, components, and / or parts shown (including their arrangement and configuration) may be included, individually or in any combination, in any other example of the devices, features, components, and parts shown in the other figures. Similarly, any of the features, components, and / or parts shown in the other figures (including their arrangement and configuration) may be included, individually or in any combination. Figure 11Examples of devices, features, components, and parts are shown.

[0094] Within the limits applicable to the techniques of this invention, the collection and use of data available from various sources can be used to improve the delivery of inspirational content or any other content that a user may be interested in. This disclosure contemplates that, in some instances, such collected data may include personal information data that uniquely identifies or can be used to contact or locate specific individuals. Such personal information data may include demographic data, location-based data, telephone numbers, email addresses, etc. ® (formerly known as TWITTER) ® User ID, home address, data or records related to the user's health or health level (e.g., vital sign measurements, medication information, exercise information), date of birth, or any other identifying or personal information.

[0095] This disclosure recognizes that the use of such personal information data in the techniques of this invention can benefit users. For example, the personal information data can be used to deliver targeted content that is of interest to the user. Therefore, the use of such personal information data enables users to have planned control over the delivered content. Furthermore, this disclosure also anticipates other uses of personal information data that are beneficial to users. For example, health and fitness data can be used to provide insights into a user's overall health status or as positive feedback for individuals using technology to pursue health goals.

[0096] This disclosure anticipates that entities responsible for the collection, analysis, disclosure, transmission, storage, or other use of such personal information data will comply with robust privacy policies and / or privacy measures. Specifically, such entities should implement and adhere to privacy policies and measures that are recognized as meeting or exceeding industry or governmental requirements for maintaining the privacy and security of personal information data. These policies should be readily accessible to users and should be updated as data collection and / or use change. Personal information from users should be collected for legitimate and reasonable entity purposes and should not be shared or sold outside of these legitimate purposes. Furthermore, such collection / sharing should be conducted only after receiving informed consent from users. Additionally, such entities should consider taking any necessary steps to protect and safeguard the right to access such personal information data and ensure that other entities with access to such personal information data comply with the privacy policies and procedures of those other entities. Moreover, such entities may be subject to third-party assessments to demonstrate their compliance with widely accepted privacy policies and privacy practices. Furthermore, policies and measures should be adapted to the specific types of personal information data collected and / or accessed, and to applicable laws and standards, including considerations of specific jurisdictions. For example, in the United States, the collection or acquisition of certain health data may be governed by federal and / or state laws, such as the Health Insurance Portability and Accountability Act (HIPAA); while in other countries, health data may be subject to other regulations and policies and should be handled accordingly. Therefore, different privacy measures should be advocated for different types of personal data in each country.

[0097] Regardless of the foregoing, this disclosure also anticipates examples of users selectively blocking the use or access to personal information data. That is, this disclosure anticipates providing hardware and / or software components to prevent or block access to such personal information data. For example, with regard to advertising delivery services, the technology of the present invention can be configured to allow users to opt-in or opt-out at any time during or after service registration to participate in the collection of personal information data. In another example, users may choose not to provide emotion-related data for a targeted content delivery service. In yet another example, users may choose to limit the length of time emotion-related data is retained, or completely prohibit the development of underlying emotional states. In addition to providing opt-in and opt-out options, this disclosure also anticipates providing notifications related to access to or use of personal information. For example, users may be notified when downloading an application that their personal information data will be accessed, and then reminded again just before the application accesses the personal information data.

[0098] Furthermore, the intent of this disclosure is that personal information data should be managed and processed in a manner that minimizes the risk of unintentional or unauthorized access or use. Once data is no longer needed, this risk can be minimized by restricting data collection and deleting data. Additionally, and where applicable, including in certain health-related applications, data deidentification can be used to protect user privacy. Deidentification can be facilitated, where appropriate, by removing specific identifiers (e.g., date of birth, etc.), controlling the amount or specificity of stored data (e.g., collecting location data at the city level rather than the address level), controlling how data is stored (e.g., aggregating data among users), and / or other methods.

[0099] Therefore, while this disclosure broadly covers the use of personal information data to implement one or more of the various disclosed examples, it is also contemplated that various examples can be implemented without access to such personal information data. That is, various examples of the inventive technology will not be rendered inoperable due to the lack of all or part of such personal information data. For example, preferences can be inferred based on non-personal information data or an absolute minimum amount of personal information such as content requested by a device associated with a user, other non-personal information available to the content delivery service, or publicly available information, thereby selecting content and delivering it to the user.

[0100] For illustrative purposes, the foregoing description uses specific names to provide a thorough understanding of the described examples. However, it will be apparent to those skilled in the art that specific details are not required to practice the described examples. Therefore, for illustrative and descriptive purposes, the foregoing description of the specific examples described herein is presented. These details are not intended to be exhaustive or to limit the examples to the precise forms disclosed. It will be apparent to those skilled in the art that many modifications and variations are possible in light of the teachings above.

Claims

1. A head-mounted display device, the head-mounted display device comprising: frame; A display, the display being coupled to the frame and including a first optical module and a second optical module; An adjustment mechanism, which is connected to the first optical module; as well as A motion transmission component is connected to the adjustment mechanism and the second optical module, and the motion transmission component extends between the first optical module and the second optical module. The adjustment mechanism is configured to simultaneously adjust the positioning of the first optical module and the second optical module relative to each other.

2. The head-mounted display device according to claim 1, wherein the adjustment mechanism comprises a rack and pinion.

3. The head-mounted display device according to claim 2, wherein the motion transmission component includes a cable.

4. The head-mounted display device according to claim 3, wherein the rack and the pinion are arranged at an angle relative to the cable.

5. The head-mounted display device of claim 3, wherein the rack and the pinion include a rotating column and a locking device configured to engage the rotating column.

6. The head-mounted display device of claim 3, wherein the rack and the pinion include damping elements configured to absorb energy.

7. The head-mounted display device according to claim 1, wherein the adjustment mechanism includes a lead screw.

8. The head-mounted display device according to claim 1, wherein the motion transmission component includes a flexible shaft.

9. The head-mounted display device according to claim 1, further comprising an impact-absorbing element disposed between the motion transmission member and the second optical module.

10. An interpupillary distance adjustment mechanism, the interpupillary distance adjustment mechanism comprising: A first guide element, the first guide element being connected to a first optical module; A second guide element is connected to a second optical module; An adjustment mechanism, which is connected to the first guide; as well as Motion transmission component, the motion transmission component comprising: A first longitudinal end, the first longitudinal end being connected to the adjustment mechanism; The second longitudinal end, the second longitudinal end being connected to the second guide; and An elongated portion, the elongated portion extending from the first longitudinal end and the second longitudinal end; The adjustment mechanism is configured to adjust the first position of the first guide relative to the second position of the second guide.

11. The interpupillary distance adjustment mechanism of claim 10, wherein the motion transmission member extends through the midpoint of the interpupillary distance adjustment mechanism.

12. The interpupillary distance adjustment mechanism of claim 11, wherein the motion transmission member extends through the midpoint in a non-linear configuration.

13. The pupil distance adjustment mechanism according to claim 10, wherein the pupil distance adjustment mechanism further includes an actuator eccentrically disposed relative to the midpoint of the pupil distance adjustment mechanism.

14. The interpupillary distance adjustment mechanism of claim 13, wherein the actuator is disposed adjacent to the first optical module.

15. The interpupillary distance adjustment mechanism according to claim 13, wherein the actuator comprises: A first rack, the first rack being connected to the first guide; A second rack, which is connected to the motion transmission component; as well as A circular gear that engages the first rack and the second rack.

16. A head-mounted display device, the head-mounted display device comprising: frame; A display, the display being connected to the frame, the display including a first optical module and a second optical module; as well as Interpupillary distance adjuster, the interpupillary distance adjuster being configured to modify the distance between the first optical module and the second optical module, the interpupillary distance adjustment mechanism comprising: The first guide screw is connected to the first optical module; A second guide screw, the second guide screw being connected to the second optical module and positioned at a certain angle relative to the first guide screw; and A center connector, which connects the first lead screw and the second lead screw; The rotation of the first lead screw causes the distance between the first optical module and the second optical module to be adjusted.

17. The head-mounted display device of claim 16, wherein the adjustment of the first lead screw simultaneously adjusts the positioning of the first optical module and the second optical module.

18. The head-mounted display device of claim 16, wherein the adjustment of the first lead screw in the first rotational direction is configured to translate the first optical module closer to the second optical module.

19. The head-mounted display device of claim 18, wherein the adjustment of the first lead screw in the second rotational direction is configured to translate the first optical module further relative to the second optical module.

20. The head-mounted display device of claim 16, wherein the interpupillary distance adjuster further comprises an actuator disposed adjacent to the first lead screw.

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