Electronic device

Abstract

The invention relates to an electronic device. A head-mounted electronic device may include a frame, a first display window attached to the frame, a second display window attached to the frame, a first waveguide associated with the first display window, a second waveguide associated with the second display window, a first arm connected to the frame, and a second arm connected to the frame, the apparatus includes a first arm including a first projector emitting light into a first waveguide, the first projector pivotable relative to the first waveguide, and a second arm including a second projector emitting light into a second waveguide, the second projector pivotable relative to the second waveguide.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 585,582, filed on September 26, 2023, entitled “ELECTRONIC GLASSES,” the entire disclosure of which is hereby incorporated by reference into this document. Technical Field

[0003] The described embodiments relate generally to electronic ophthalmic devices. More particularly, the present embodiments relate to electronic head mounted devices having a hinge forward design that allows for repeatable and reliable optical alignment. Background Art

[0004] Electronic eyewear devices, such as head mounted devices (HMDs), computer glasses or smart glasses, are worn on the user's head and combine optical display and computing capabilities. With the advent of HMDs, the demand for small and stylish form factors has increased. Binocular display systems in electronic devices may include two displays aligned with respect to each other with very high precision. Misalignment of the displays may cause a range of problems, such as eye fatigue, discomfort, or even a complete inability to merge the two images. Therefore, reliable alignment of the displays is required while maintaining a suitable form factor. Summary of the invention

[0005] According to some aspects of the present disclosure, a head-mounted electronic device may include: a frame, a first display window attached to the frame, a second display window attached to the frame, a first waveguide associated with the first display window, and a second waveguide associated with the second display window; a first arm connected to the frame, the first arm including a first projector that emits light into the first waveguide, the first projector being pivotable relative to the first waveguide, and a second arm connected to the frame, the second arm including a second projector that emits light into the second waveguide, the second projector being pivotable relative to the second waveguide.

[0006] In some examples, the head-mounted electronic device may include an optical sensor disposed in a frame. Each of the first waveguide and the second waveguide may include an input coupler, a first output coupler that directs light to an eye of a user, and a second output coupler that directs light to the optical sensor. The head-mounted electronic device may include an optical sensor disposed in the frame to receive light from the first projector through the first waveguide and light from the second projector through the second waveguide, and detect alignment between the first projector and the second projector. The head-mounted electronic device may include a third waveguide located in the frame between the first waveguide and the second waveguide, and the third waveguide may direct light from the first projector and the second projector to the optical sensor.

[0007] In some examples, the head mounted electronic device may include a first optical sensor disposed in a frame to detect light from a first waveguide, and a second optical sensor disposed in the frame to detect light from a second waveguide. The first projector may include an effective field of view region that emits light from a projection panel, and the first projector may include an extended field of view region that extends beyond the effective projection panel. The effective field of view region may be approximately 25 degrees. The extended field of view region may be approximately 1.25 degrees. In some examples, the extended field of view region may be more than 3 degrees larger than the effective field of view region.

[0008] The head mounted electronic device may include a first hinge that pivotally connects the first arm to the frame. The first hinge may be located between the frame and the first projector. The head mounted electronic device may include a second hinge that pivotally connects the second arm to the frame. The second hinge may be located between the frame and the second projector.

[0009] According to some aspects, an electronic system may include: a frame including an optical sensor, a display window including a waveguide connected to the frame, an arm including a light emitter connected to the frame, and a hinge pivotally engaging the frame and the light emitter, the hinge being located between the frame and the light emitter. The optical sensor may detect alignment between the light emitter and the waveguide.

[0010] In some examples, the hinge may include a cover to secure the optical path between the light emitter and the waveguide. The electronic system may include an attachment portion to releasably secure the arm in an open position. The light emitter may be movably suspended within the arm. The optical sensor may include a camera rigidly secured to the frame. The display window may be a first display window, the waveguide may be a first waveguide, the arm may be a first arm, the light emitter may be a first light emitter, and the hinge may be a first hinge. The electronic ophthalmic device also includes: a second display window including a second waveguide tube, a second arm including a second light emitter, and a second hinge pivotally engaging the frame and the second light emitter, the second hinge being located between the frame and the second light emitter. The optical sensor may detect alignment between the first light emitter and the second light emitter. The optical sensor may detect alignment between the first waveguide and the second waveguide.

[0011] According to some aspects, the electronic glasses may include: an arm structure defining an interior volume and an aperture, a light emitter disposed at least partially within the interior volume of the arm, the light emitter may include a first optical surface at the aperture, and a frame including a display window and a waveguide. The waveguide may define a second optical surface. When the arm structure is in a closed position, the first optical structure may be separated from the second optical surface, and when the arm structure is in an open position, the first optical surface may be adjacent to the second optical surface to define an optical path between the light emitter and the waveguide.

[0012] In some examples, the electronic glasses may include a sensor to detect whether the arm structure is in an open position or a closed position. The electronic glasses may include an optical sensor disposed in a frame and optically aligned with the waveguide. In response to the optical sensor detecting a misalignment between the light emitter and the waveguide, the effective field of view area may be electronically shifted within the projection panel. The display window may be a first display window, and the waveguide may be a first waveguide. The frame may include a second display window and a second waveguide. The electronic glasses may also include an optical sensor disposed in the frame and optically aligned with the first display window and the second display window, wherein in response to the optical sensor detecting a misalignment between the first display window and the second display window, the effective field of view area may be shifted within the projection panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present disclosure will be readily understood through the following detailed description in conjunction with the accompanying drawings, in which like reference numerals represent like structural elements, and in which:

[0014] Figure 1A A top view of the electronic glasses is shown in a closed configuration.

[0015] Figure 1B Shown in open configuration Figure 1A view of modern electronic glasses.

[0016] Figure 2 A schematic diagram of the waveguide is shown.

[0017] Figure 3 A front view of a display window with a waveguide is shown.

[0018] Figure 4A An aligned projector is shown.

[0019] Figure 4B A misaligned projector is shown.

[0020] Figure 4C An extended projector field of view is shown.

[0021] Figure 4D Shown is the projector realigned over an expanded field of view.

[0022] Figure 5 Hinge covers on electronic glasses are shown.

[0023] Figure 6 A process flow chart showing the calibration protocol. DETAILED DESCRIPTION

[0024] Reference will now be made in detail to the representative embodiments illustrated in the accompanying drawings. It should be understood that the following description is not intended to limit the embodiments to a preferred embodiment. On the contrary, it is intended to cover substitutions, modifications and equivalents that may be included in the essence and scope of the described embodiments defined by the appended claims.

[0025] The following disclosure relates to a novel structure and alignment mechanism for an electronic ocular device (i.e., electronic glasses or head mounted electronic devices (HMD)). Binocular display systems in augmented reality (AR), virtual reality (VR), and mixed reality (MR), collectively referred to as extended reality (XR) devices, may involve two displays aligned relative to each other with very high precision (~0.1° or so). Misalignment of the displays may cause a range of problems, such as eye fatigue / discomfort, or even a complete inability to merge the two images.

[0026] Traditional or conventional XR display architectures are designed to have a structurally rigid connection between the waveguide and the light emitter or projector, where the projector is fixed to the frame of the device to maintain alignment between the projector and the waveguide. In some devices, the projector is mounted above the bridge of the frame, however, this results in a product with a thick brow form factor, unlike typical glasses. In some devices, the projector is mounted along the length of the fixed arm. However, this arrangement may result in the hinge point being moved back behind the projector, which can create an atypical and bulky design in the folded state.

[0027] Furthermore, the rigid architecture used by conventional devices relies on the assumption that the alignment between each waveguide and projector is fixed and changes minimally over the life of the device. Without an effective feedback loop for the alignment between the projector and the waveguide, this assumption can quickly break down and lead to undiagnosed field failures. As a result, conventional architectures use extremely rigid optical benches, resulting in higher product weight, larger size, and unsightly design.

[0028] The present disclosure describes the use of an optical architecture that includes at least one sensor in the bridge or frame of the electronic glasses that can directly measure the binocular viewing axis of two displays relative to each other. The sensor can be supplemented by a projector with an extra-large field of view (FoV) and the ability to perform electronic image shifting to correct detected misalignment. A bistable hinge mechanism can be advantageously located between the projector and the waveguide to produce a natural and typical eyewear design in the closed configuration. Using the architecture described herein, the electronic glasses include a more natural and compact form factor.

[0029] In some examples, the waveguide includes a first, main or primary output coupler that couples out an image to a user, and a secondary output coupler that couples out the same image as seen by the user's eyes. The secondary output coupler is imaged by an optical sensor such as a camera and used to calculate the alignment between the projector and the waveguide or to calculate the alignment between the first display image and the second display image. For example, the optical sensor can calculate the display boresight.

[0030] In some examples, the hinge mechanism may include attachment features such as detents, magnets, protrusions, springs, latches, or any other mechanical features to secure the arms in the folded and deployed states. In the deployed state, such as when the user wears the glasses, the hinge mechanism may be able to secure the position of the arm relative to the frame with high repeatability and low angular variation. Changes relative to the nominal hinge position may be detected and measured by an optical sensor. Electronic image shifts may then be used to account for the changes.

[0031] In some examples, the electronic glasses may include at least one projector with an extra-large or extended FoV. Once the optical sensor detects misalignment, the extra-large FoV can be used to realign the two displays relative to each other. For example, the projector may retain an additional FoV border or area around the nominal active area. In some examples, in order to achieve a nominal 25° (degrees) × 25° (degrees) FoV, an additional ~1.25° border may be retained. Thus, in this case, the extra-large or extended projector may include a 27.5° × 27.5° FoV. In order to realign the two displays, the images can be electronically shifted to appear within the FoV that the projector can achieve. Thus, in this specific example, each display can be misaligned by approximately ~1.25° without cropping any image.

[0032] In this manner, electronic glasses using an optical bridge sensor combined with a robust and accurate hinge attachment system and an oversized projector allow the product to be a desired form factor product that can realign the display each time the device is used. Additionally, the electronic category advantageously includes a hinge forward design where the projector is disposed behind the hinge such that the hinge is located between the frame / waveguide and the projector.

[0033] References below Figures 1A to 6These embodiments and other embodiments are discussed. However, those skilled in the art will readily appreciate that the detailed description of these figures given herein is for illustrative purposes only and should not be construed as limiting. In addition, as used herein, a system, method, article, component, feature, or sub-feature comprising at least one of a first option, a second option, or a third option should be understood to refer to a system, method, article, component, feature, or sub-feature comprising one of each listed option (e.g., only one first option, only one second option, only one third option), a plurality of a single listed option (e.g., two or more first options), two options at the same time (e.g., one first option and one second option), or a combination thereof (e.g., two first options and one second option).

[0034] Figure 1A A top view of electronic glasses 100 is shown in a closed configuration. Electronic glasses 100 may include a frame 104 and an arm 108 pivotally attached to the frame 104. The frame 104 may include a bridge portion that supports or holds a display window. The frame 104 may include a housing that defines an interior volume. Electronic components may be disposed within the interior volume defined by the housing of the frame 104. In some examples, the electronic components may be located on the exterior of the frame 104. As described in more detail below, the frame 104 and / or the display window may include a waveguide (in Figure 1A and Figure 1B not shown).

[0035] In some examples, the frame 104 may include an optical sensor module 120. The optical sensor module 120 may include one or more optical sensors, such as a camera. The optical sensor module 120 may be partially or fully disposed within the interior volume of the frame 104. In some examples, the optical sensor module 120 may define the exterior of the frame 104. The optical sensor module 120 may be mounted or secured to the frame 104 via a bracket. In some examples, the optical sensor module 120 may provide structural stability and support for the frame 104.

[0036] The electronic glasses 100 may include one or more arms 108. Figure 1A In the depicted embodiment, the electronic glasses 100 include two arms 108. The arms 108 may be support arms or support structures that are intended to rest over or on the user's ears to removably secure the electronic glasses 100 to the user's head.

[0037] The electronic device 100 may include a variety of modes, states, or configurations. For example, the electronic glasses 100 may include a closed state in which the arms 108 are folded inwardly to be adjacent to and substantially parallel to the frame 104 (eg, Figure 1A depicted). Figure 1BThe electronic glasses 100 are depicted in an open state in which the arms 108 extend outwardly substantially perpendicularly to the frame 104. The arms 108 may be pivotally or rotationally coupled to either end of the frame 104 via hinge mechanisms 112. The hinge mechanisms 112 may be located between one end of the arms 108 and the frame 104. Thus, the arms 108 may pivot about the hinge mechanisms 112 to transition between the closed state and the open state.

[0038] One or more of the arms 108 may include a light emitter or projector 116. In the embodiments described herein, each arm 108 includes a projector 116. The projector 116 generates and emits light, thereby producing an image for viewing by a user. The projector 116 may be attached to the arm 108. In some examples, the projector 116 is disposed within the interior volume of the arm 108. In some examples, the projector 116 is mounted or attached to an exterior surface of the arm 108.

[0039] The projector 116 can be rigidly fixed within or on the arm 108. In some examples, the frame 116 can be movably fixed to the arm 108. For example, the projector 116 can be suspended or floated within the arm 108 using a spring or tension wire, thereby allowing relative movement between the projector 116 and the waveguide. When the arm 108 assumes an open state, this movement can move the projector 116 so as to properly couple with the waveguide. When in the open state, the projector 116 can be locked or fixed in place. For example, the projector 116 can include mating features that prevent movement of the projector relative to the waveguide once the arm 108 is in the open position.

[0040] The projector 116 may be located at one end of the arm 108. In some examples, the arm 108 may define an opening or aperture at the end of the arm 108. When in the closed state, the projector 116 may be exposed to the external environment. In some examples, the optical surface of the projector 116 may define the external surface of the arm 108 and may be exposed through the open end of the arm 108. In some examples, when in the open state, the optical surface of the projector 116 may be covered or not exposed to the external environment. Figure 5 Further discussion of the optical surfaces and optical pathways of the projector is provided.

[0041] like Figure 1B As shown, in the open state, the projector 116 can be positioned adjacent to the frame and the corresponding input coupler of the waveguide (see Figure 2 and Figure 3 In some examples, in the open position, an optical surface defined by projector 116 can directly contact or touch a corresponding optical surface of the input coupler. In some examples, in the open state, projector 116 can be positioned between projector 116 and the waveguide ( Figure 1BThe electronic glasses 100 may include one or more sensors that can detect whether the arm 108 is in an open state or a closed state.

[0042] In some examples, to detect misalignment between projectors 116, the electronic glasses 100 can include a plurality of optical sensors 120 rigidly aligned on the frame 104 of the electronic glasses 100. Advantageously, the challenges of rigidly securing the optical sensors 120 in place on the bridge are less than the challenges of conventional methods of rigidly securing the entire bridge and projectors. In some examples, a bracket can rigidly secure the optical sensors 120 in / on the bridge.

[0043] In some examples, the arm 108 and / or the frame 104 may include detents, magnets, mechanical features, kinematic mounts, or other features to enable a reliable, repeatable, and consistent connection between the optical surfaces when the arm 108 is open. Such attachment features enable proper securement of the arm 108 when in the open configuration even if there is a gap between the arm 108 and the frame 104 when in the closed configuration.

[0044] Figure 1A and Figure 1B Any of the features, components and / or parts shown (including their arrangements and configurations) may be included alone or in any combination in any other examples of devices, features, components and parts shown in other figures described herein. Similarly, any of the features, components and / or parts shown or described with reference to other figures (including their arrangements and configurations) may be included alone or in any combination in any other examples of devices, features, components and parts shown in other figures described herein. Figure 1A and Figure 1B In the examples of the devices, features, components and parts shown. In addition, for simplicity, reference numerals ending with the same or similar digits but changing in the hundreds place may refer to the same or similar components in different embodiments or figures.

[0045] Figure 2 A top schematic view of waveguide 201 is shown. Waveguide 201 may be substantially similar to the waveguides described herein, including some or all of the features of the waveguides described herein. Waveguide 201 may be integrated into electronic glasses, such as electronic glasses 100. Waveguide 201 may be integrated into 224. Waveguide 201 may include an input coupler 234, a first output coupler 238, and a second output coupler 240. Input coupler 234 may be positioned and configured to receive light emitted from projector 216. Input coupler 234 may direct received light 230 to first output coupler 238 and second output coupler 240.

[0046] The first output coupler 238 can be a main or primary output coupler that directs some of the light that forms an image 239 for viewing by the user's eye 228. A portion of the light 230 passes through the first output coupler 238 to the second output coupler 240. The second output coupler directs the light that forms an image 242 to the optical sensor 220. The image 239 presented to the eye 228 and the image 242 presented to the optical sensor 220 can be the same.

[0047] Figure 2 Any of the features, components, and / or parts shown (including their arrangements and configurations) may be included alone or in any combination in any other examples of devices, features, components, and parts shown in other figures described herein. Similarly, any of the features, components, and / or parts shown or described with reference to other figures (including their arrangements and configurations) may be included alone or in any combination in any other examples of devices, features, components, and parts shown in other figures described herein. Figure 2 In the examples of the devices, features, components and parts shown. In addition, for simplicity, reference numerals ending with the same or similar digits but varying in the hundreds place may refer to the same or similar components in different embodiments or figures.

[0048] Figure 3 A front view of a first waveguide 301a and a second waveguide 301b (collectively referred to as waveguide 301) is shown. Waveguide 301 may be substantially similar to the waveguides described herein (such as waveguide 201), including some or all of the features of the waveguides described herein. Each waveguide in waveguide 301 may be incorporated into or defined by a display window 324. Waveguide 301 may each include an input coupler 334, a first output coupler 338, and a second output coupler 340. Input coupler 334 may be positioned and configured to receive light emitted from a projector. Input coupler 334 may guide the received light to a first output coupler 338 and a second output coupler 340.

[0049] The waveguide 301 may include a SAG surface relief grating designed with an angle and shape to bounce and separate light and allow a portion of the light to continue to propagate. The waveguide 301 may include a plurality of gratings 350 to guide light 339 toward a first output coupler 338. The first output coupler 338 may be a primary or primary output coupler that guides some of the light that forms an image for the user's eye to view. A portion of the light 342 passes through the first output coupler 338 to the second output coupler 240. The second output coupler guides the light that forms the image to an optical sensor. The image presented to the eye from the first output coupler 338 and the image presented to the optical sensor from the second output coupler 340 may be the same.

[0050] In some examples, the electronic glasses may include a single optical sensor for imaging the two second output couplers 340 from each of the waveguides 301. In the case where a single optical sensor monitors both waveguides 301, there may be a third waveguide or intermediate waveguide (not shown) to direct light from the waveguides 301 to the optical sensor.

[0051] In some examples, waveguide 301 can produce image replication by taking a single image pupil from a projector and expanding it into multiple pupils toward output couplers 338, 340. Thus, waveguide 301 can be used to generate multiple image pupils from a single input image.

[0052] Figure 3 Any of the features, components and / or parts shown (including their settings and configurations) may be included alone or in any combination in any other examples of devices, features, components and parts shown in other figures described herein. Similarly, any of the features, components and / or parts shown or described with reference to other figures (including their settings and configurations) may be included alone or in any combination in any other examples of devices, features, components and parts shown in other figures described herein. Figure 3 In the examples of the devices, features, components and parts shown. In addition, for simplicity, reference numerals ending with the same or similar digits but changing in the hundreds place may refer to the same or similar components in different embodiments or figures.

[0053] Figure 4A A light emitter or projector 416 is shown that is appropriately aligned with an imaging or projection panel 405. Projector 416 may be substantially similar to the projectors described herein (such as projectors 116, 216, and 316), including some or all of the features of the projectors described herein. For example, projector 416 may be attached to the arm of the electronic glasses. Projector 416 may be intended to be used to project an image 403 having a field of view aligned with an imaging or projection panel 405. Projection panel 405 may be an active area, such as a digital micromirror device (DMD chip). In some examples, imaging panel 405 may be a part of projector 416. In other words, a "projector" may include a light source and a DMD chip. In some examples, the projection panel may include a liquid crystal on silicon (LCOS), a super luminescent diode (uLED), an ultra organic light emitting diode (uOLED), or any other suitable projection panel.

[0054] Figure 4BAn exemplary misalignment between projector 416 and projection panel 405 is shown. In the context of the present disclosure, misalignment can be the result of deformation or bending of the arms of the electronic glasses, causing image 403 to be offset from the center of projection panel 405. Misalignment can also occur due to other factors, including but not limited to deformation of the frame or mechanical mounting of the display components. This is a particular challenge for electronic glasses with a projector that is movable relative to the waveguide.

[0055] Figure 4C A projection panel 405, such as a DMD chip, is shown having an extended area 407. As a solution to potential movement or displacement in the projector 416, the projection panel 405 may be oversized or extended to allow for realignment. For example, Figure 4D Illustrated Figure 4B The “misaligned” projector 416 emits light onto the oversized imaging panel 405 which is still able to operate properly and display images due to the extended area 407 .

[0056] For example, the projection panel 405 may typically have an effective area of ​​about 25° field of view (FoV). In this example, the projector may include an additional field of view of ~1.25° around the effective DMD panel 305. Therefore, when a shift occurs, the projector 416 can be shifted to the position where the image is projected onto the DMD panel 305, and therefore, what the eye sees is still aligned. In some examples, the extended FoV area 307 can be extended by about 1° to 3°, about 3° to 5°, or about 8° to 10°. In other words, the projector may include an effective field of view area directed to the imaging projection panel, and an extended field of view area extending beyond the effective projection panel.

[0057] FIG. 4A to FIG. 4C Any of the features, components and / or parts shown (including their arrangements and configurations) may be included alone or in any combination in any other examples of devices, features, components and parts shown in other figures described herein. Similarly, any of the features, components and / or parts shown or described with reference to other figures (including their arrangements and configurations) may be included alone or in any combination in any other examples of devices, features, components and parts shown in other figures described herein. FIG. 4A to FIG. 4C In the examples of the devices, features, components and parts shown. In addition, for simplicity, reference numerals ending with the same or similar digits but changing in the hundreds place may refer to the same or similar components in different embodiments or figures.

[0058] Figure 5A hinge cover 530 is shown on the electronic glasses 500. The electronic glasses 500 can be substantially similar to the electronic glasses described herein (such as the electronic glasses 100, 200, and 300), including some or all of the features of the electronic glasses described herein. The hinge cover 530 can be located between the frame 504 and the arm 508. The hinge cover 530 can move or articulate when the arm 508 transitions between the open state and the closed state. The hinge cover 530 can shield or secure the projector 516 and the waveguide ( Figure 5 The hinge cover 530 can prevent dust or debris from entering the optical interface between the arm 508 and the frame 504.

[0059] In some examples, the hinge cover 530 can move with the movement of the arm 508 to expose an opening or aperture in the hinge cover 530 to allow light to pass when the end of the arm 508 is fixedly positioned against the frame 504, thereby preventing debris from entering between the arm 508 and the frame 504. When the arm 508 is moved to a closed state, the hinge cover 530 can move to close or block the gap formed between the end of the arm 508 and the frame 504.

[0060] Figure 5 Any of the features, components, and / or parts shown (including their arrangements and configurations) may be included alone or in any combination in any other examples of devices, features, components, and parts shown in other figures described herein. Similarly, any of the features, components, and / or parts shown or described with reference to other figures (including their arrangements and configurations) may be included alone or in any combination in any other examples of devices, features, components, and parts shown in other figures described herein. Figure 5 In the examples of the devices, features, components and parts shown. In addition, for simplicity, reference numerals ending with the same or similar digits but varying in the hundreds place may refer to the same or similar components in different embodiments or figures.

[0061] Figure 6A process flow chart illustrating an exemplary operation of electronic glasses integrated with the components detailed herein is illustrated. In step 603, a calibration protocol may be initiated. The calibration protocol may be executed to test the alignment of the projector. The calibration protocol may be initiated or executed each time the electronic device is turned on. In some examples, the calibration protocol may be executed in response to the arm moving to an open state. In some examples, the calibration protocol may be triggered to start in response to the electronic glasses being placed on the user's head. For example, depending on the size and shape of the user's head, the arm may bend outward when placed on the user's head (i.e., more outward than when it is only in an open state but not placed on the user's head). Therefore, executing the calibration protocol in response to the arm being in an open state may not be sufficient to ensure that the projector is properly aligned when the user wears the electronic glasses. One solution may be to execute the calibration protocol in response to detecting (e.g., via a touch / pressure sensor) that the user is wearing an electronic device. This ensures that any arm bending caused by the user's head is taken into account when executing the calibration protocol.

[0062] In step 605, a target or test image may be projected into the waveguide. The calibration protocol may include instructing the projector to display a predetermined image or target sensed by an optical sensor. The position of the target image may be tested relative to the known position where the target image should be during proper alignment. In step 607, the alignment may be detected by the optical sensor. In step 609, when misalignment is detected, the calibration protocol may instruct one or more projectors to perform an electronic image shift to correct the misalignment. In step 611, the realignment of the system may be tested by executing a confirmation calibration protocol. Confirming the calibration protocol may include executing steps 603 and 605 to confirm whether the realignment is successful or whether additional correction is required. The above is an example of a calibration protocol that may be performed using components and structures (e.g., optical sensors and very large projectors) as described herein.

[0063] In some examples, during the calibration protocol, each projector may be compared relative to the other projector. However, this approach may not inform the system which projector is misaligned, but only inform the system that the projectors are not aligned relative to each other. Therefore, in some examples, an alignment test may be performed independently on each projector to isolate the misaligned projector.

[0064] To the extent applicable to the present technology, the collection and use of data obtained from various sources may be used to improve the delivery of inspirational content or any other content that may be of interest to the user. The present disclosure contemplates that in some instances, the collected data may include personal information data that uniquely identifies or can be used to contact or locate a specific person. Such personal information data may include demographic data, location-based data, phone numbers, email addresses, Home address, data or records related to the user's health or fitness level (e.g., vital sign measurements, medication information, exercise information), date of birth, or any other identifying or personal information.

[0065] The present disclosure recognizes that the use of such personal information data in the present technology can be used to benefit users. For example, the personal information data can be used to deliver targeted content that users are more interested in. Therefore, the use of such personal information data enables users to have planned control over the content delivered. In addition, the present disclosure also envisions other uses of personal information data that benefit users. For example, health and fitness data may be used to provide insights into the user's overall health status, or may be used as positive feedback to individuals who use technology to pursue health goals.

[0066] The disclosure envisions that entities responsible for collecting, analyzing, disclosing, transmitting, storing or other such personal information data use will comply with established privacy policies and / or privacy practices. Specifically, such entities should implement and adhere to the use of privacy policies and practices that are recognized as meeting or exceeding industry or government requirements for maintaining the privacy and security of personal information data. Such policies should be easily accessible to users and should be updated as changes in the collection and / or use of data occur. Personal information from users should be collected for the legal and reasonable purposes of the entity and not shared or sold outside these legal uses. In addition, such collection / sharing should be performed after receiving the user's informed consent. Additionally, such entities should consider taking any necessary steps to protect and safeguard access to such personal information data, and ensure that other entities with access to personal information data comply with their privacy policies and procedures. In addition, such entities can subject themselves to third-party assessments to prove that they comply with widely accepted privacy policies and practices. In addition, policies and practices should be suitable for specific types of personal information data being collected and / or accessed, and comply with applicable laws and standards (including considerations of specific jurisdictions). For example, in the United States, the collection or access of certain health data may be governed by federal and / or state laws, such as the Health Insurance Portability and Accountability Act (HIPAA), while health data in other countries may be subject to other regulations and policies and should be handled accordingly. Therefore, different privacy practices should be maintained in each country for different types of personal data.

[0067] Regardless of the foregoing, the present disclosure also contemplates implementation schemes in which users selectively block the use or access of personal information data. That is, the present disclosure contemplates that hardware elements and / or software elements may be provided to prevent or block access to such personal information data. For example, with respect to an advertising delivery service, the technology of the present invention may be configured to allow a user to choose to "opt in" or "opt out" to participate in the collection of personal information data at any time during or after registration for the service. In another example, a user may choose not to provide emotion-related data for a target content delivery service. In another example, a user may choose to limit the length of time that emotion-related data is retained, or to completely prohibit the development of basic emotional conditions. In addition to providing "opt-in" and "opt-out" options, the present disclosure also contemplates providing notifications related to access or use of personal information. For example, a user may be notified that their personal information data will be accessed when downloading an application, and then the user may be reminded again before the personal information data is accessed by the application.

[0068] In addition, the intention of the present 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 the data is no longer needed, the risk can be minimized by limiting data collection and data deletion. In addition and when applicable (including in certain health-related applications), data de-identification can be used to protect user privacy. De-identification can be facilitated 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 at the address level), controlling how the data is stored (e.g., aggregating data between users), and / or other methods when appropriate.

[0069] Thus, while the present disclosure broadly covers the use of personal information data to implement one or more of the various disclosed embodiments, the present disclosure also contemplates that various embodiments may also be implemented without access to such personal information data. That is, various embodiments of the present technology will not fail to function properly due to the lack of all or a portion of such personal information data. For example, content may be selected and delivered to a user by inferring preferences based on non-personal information data or an absolute minimum amount of personal information, such as content requested by a device associated with the user, other non-personal information available to a content delivery service, or publicly available information.

[0070] For the purpose of illustration, the foregoing description uses specific nomenclature to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that specific details are not required in order to practice the embodiments. Therefore, for the purpose of illustration and description, the foregoing description of the specific embodiments described herein is presented. They are not intended to be exhaustive or to limit the embodiments to the precise form disclosed. It will be apparent to those of ordinary skill in the art that, in view of the above teachings, many modifications and variations are feasible.

Claims

1. A head-mounted electronic device, comprising: frame; a first display window attached to the frame; a second display window attached to the frame; a first waveguide, the first waveguide being associated with the first display window; a second waveguide, the second waveguide being associated with the second display window; a first arm connected to the frame, the first arm comprising a first projector that emits light into the first waveguide, the first projector being pivotable relative to the first waveguide; and A second arm is connected to the frame, the second arm comprising a second projector that emits light into the second waveguide, the second projector being pivotable relative to the second waveguide.

2. The head-mounted electronic device according to claim 1, further comprising an optical sensor, wherein the optical sensor is disposed in the frame; wherein each of the first waveguide and the second waveguide comprises: Input coupler; a first output coupler for directing light to an eye of a user; and A second output coupler for directing light to the optical sensor.

3. The head-mounted electronic device according to claim 1 further comprises an optical sensor, which is disposed in the frame and is configured to receive light from the first projector through the first waveguide and to receive light from the second projector through the second waveguide, and is configured to detect alignment between the first projector and the second projector.

4. The head-mounted electronic device according to claim 3 further comprises a third waveguide, wherein the third waveguide is located in a frame between the first waveguide and the second waveguide, and the third waveguide is configured to guide light from the first projector and the second projector to the optical sensor.

5. The head-mounted electronic device according to claim 1, further comprising: a first optical sensor disposed in the frame and configured to detect light from the first waveguide; and A second optical sensor is disposed in the frame and configured to detect light from the second waveguide.

6. The head mounted electronic device according to claim 1, wherein: The first projector includes an effective field of view area from which light is emitted from a projection panel; and The first projector includes an extended field of view region extending outside the effective field of view region.

7. The head mounted electronic device according to claim 6, wherein: The effective field of view is approximately 25 degrees; and The extended field of view area is approximately 1.25 degrees.

8. The head-mounted electronic device according to claim 6, wherein the extended field of view area is more than 3 degrees larger than the effective field of view area.

9. The head-mounted electronic device according to claim 1, further comprising: a first hinge pivotally connecting the first arm to the frame, the first hinge being located between the frame and the first projector; and A second hinge pivotally connects the second arm to the frame, the second hinge being located between the frame and the second projector.

10. An electronic system, comprising: a frame, the frame comprising an optical sensor; a display window comprising a waveguide connected to the frame; an arm including a light emitter connected to the frame; and a hinge pivotally engaging the frame and the light emitter, the hinge being located between the frame and the light emitter; Wherein the optical sensor is configured to detect alignment between the light emitter and the waveguide.

11. The electronic system of claim 10, wherein the hinge comprises a cover configured to secure an optical path between the light emitter and the waveguide. 12 . The electronic system of claim 10 , further comprising an attachment portion configured to releasably secure the arm in an open position.

13. The electronic system of claim 10, wherein the light emitter is movably suspended within the arm.

14. The electronic system of claim 10, wherein the optical sensor comprises a camera, the camera being rigidly secured to the frame.

15. The electronic system of claim 10, wherein the display window is a first display window, the waveguide is a first waveguide, the arm is a first arm, the light emitter is a first light emitter, and the hinge is a first hinge; The electronic eye device also includes: a second display window, the second display window comprising a second waveguide; a second arm comprising a second light emitter; and a second hinge pivotally engaging the frame and the second light emitter, the second hinge being located between the frame and the second light emitter; Wherein the optical sensor is configured to detect alignment between the first light emitter and the second light emitter.

16. The electronic system of claim 15, wherein the optical sensor is configured to detect alignment between the first waveguide and the second waveguide.

17. An electronic pair of glasses, comprising: an arm structure defining an interior volume and an orifice; a light emitter disposed at least partially within the interior volume of the arm, the light emitter comprising a first optical surface at the aperture; and a frame including a display window and a waveguide, the waveguide defining a second optical surface; wherein when the arm structure is in the closed position, the first optical structure is separated from the second optical surface; and Wherein, when the arm structure is in an open position, the first optical surface is adjacent to the second optical surface to define an optical path between the light emitter and the waveguide.

18. The electronic glasses according to claim 17, further comprising a sensor configured to detect whether the arm structure is in the open position or the closed position.

19. The electronic glasses of claim 17, further comprising an optical sensor disposed in the frame and optically aligned with the waveguide; Wherein in response to the optical sensor detecting a misalignment between the light emitter and the waveguide, an effective field of view area is shifted within the projection panel.

20. The electronic glasses of claim 17, wherein the display window is a first display window and the waveguide is a first waveguide, and the frame includes a second display window and a second waveguide; The electronic glasses also include an optical sensor disposed in the frame and optically aligned with the first display window and the second display window, wherein in response to the optical sensor detecting a misalignment between the first display window and the second display window, an effective field of view area is shifted within the projection panel.

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