Head-mounted display assembly and related methods for adjusting interpupillary distance

Abstract

This application relates to head-mounted display assemblies and related methods for adjusting interpupillary distance. The disclosed head-mounted display assemblies can include first and second eye cups configured to position first and second lenses, respectively, in front of intended locations of a user's eyes when the head-mounted display assembly is donned. The first and second eye cups can be movable relative to one another to adjust according to an interpupillary distance of the user's eyes. A single near-eye display screen can be configured to display images to the user through the first and second eye cups. An enclosure over the single near-eye display screen can include a first transparent component between the first lens and the single near-eye display screen and a second transparent component between the second lens and the single near-eye display screen. Various other methods, devices, systems, and assemblies are also disclosed.

Description

[0001] This application is a divisional application of the application filed on October 28, 2020, with application number 202080074498.X, entitled "Head-mounted display assembly and related method for adjusting interpupillary distance". background

[0002] Artificial reality systems, such as virtual reality (VR) or augmented reality (AR) systems, typically display computer-generated content to users to create immersive experiences. This content can be displayed on a head-mounted display (“HMD”) screen. For example, a VR system can create 3D renderings to simulate an environment or virtual space. Alternatively, an AR system can merge computer-generated content with the real-world environment as seen by the user to enhance interaction with that environment. These systems can provide users with the ability to browse and modify digital content that can offer useful information about real-world objects. HMD systems sometimes include two optical lenses, one for each eye, positioned in front of the screen. The lenses can magnify the image displayed on the screen and / or provide proper focus for the image. Contaminants on the lenses or screen (e.g., dust particles, fingerprints, etc.) may undesirably obstruct or otherwise blur parts of the displayed image. Moving parts in an HMD system can sometimes cause or move contaminants in front of the displayed image.

[0003] Different users have different head and face shapes and sizes. For example, a particular user's eyes may be positioned closer or farther apart than other users. The distance between the centers of the pupils of an HMD user is often referred to as the "interpupillary distance" or "IPD." Positioning the lenses to match the IPD of a particular user improves the image quality for that user. To accommodate different IPDs, some HMDs include mechanisms for adjusting the IPD setting and thus the relative position between the optical lenses. Some HMDs include two separate screens coupled to two corresponding lenses. Each lens and screen pair can be moved relative to the other lens and screen pair to adjust according to the IPD. Each lens and screen pair may include a sealed interior to suppress the introduction of contaminants, thereby improving or maintaining image quality. However, integrating two such screens into an HMD is generally more expensive than a single screen. However, conventional HMD systems with one screen and IPD adjustment capability often have a construction that may allow contaminants to be introduced onto the screen and / or the screen side of the lens. Overview

[0004] According to a first aspect, a head-mounted display assembly is provided, comprising: a first eyecup and a second eyecup, the first eyecup and the second eyecup being configured to position a first lens and a second lens respectively in front of a desired position of the user's eyes when the user wears the head-mounted display assembly; a single near-eye display screen configured to display an image to the user through the first eyecup and the second eyecup; and an enclosure located above the single near-eye display screen, the enclosure comprising: a first transparent member located between the first lens and the single near-eye display screen and a second transparent member located between the second lens and the single near-eye display screen, wherein the first eyecup and the second eyecup are movable relative to each other and relative to the first transparent member and the second transparent member to adjust according to the interpupillary distance of the user's eyes.

[0005] A first transparent component may be positioned at a first distance from a single near-eye display screen, and a second transparent component may be positioned at a second distance from the single near-eye display screen, wherein the second distance may be smaller than the first distance. Each of the first and second distances may be in the range of approximately 10 mm to approximately 20 mm. The difference between the first and second distances may be at least approximately 2 mm.

[0006] At least one of the first or second eye cups may be movable relative to a single near-eye display screen.

[0007] The first transparent component and the second transparent component may include at least one of the following: a polymer material; a glass material; or a crystalline material.

[0008] The closure may include an airtight closure defined above a single near-eye display screen and below a first transparent component and a second transparent component.

[0009] The first and second transparent components can be positioned at a distance from a single near-eye display screen such that contaminants placed on the first and second transparent components are essentially out-of-focus for a user viewing the single near-eye display screen through the first and second lenses.

[0010] The head-mounted display assembly may further include a first sealing element located between a first eyecup and a first transparent component, and a second sealing element located between a second eyecup and a second transparent component. A first sliding interface may be located between the first sealing element and the first transparent component, and a second sliding interface may be located between the second sealing element and the second transparent component. Alternatively, the first sliding interface may be located between the first sealing element and the first eyecup, and the second sliding interface may be located between the second sealing element and the second eyecup. Each of the first and second sealing elements may include at least one of the following: an elastomeric material; and a closed-cell foam material.

[0011] The first eye cup may include a first sidewall and a first flange extending radially outward from the first sidewall adjacent to the first transparent component; the second eye cup may include a second sidewall and a second flange extending radially outward from the second sidewall adjacent to the second transparent component.

[0012] The head-mounted display assembly may also include an interpupillary distance adjustment mechanism coupled to a first and a second eyecup for adjusting the distance between the first and second eyecups. The head-mounted display assembly may also include a stop mechanism configured to maintain the relative position of the first and second eyecups after adjustment based on the user's interpupillary distance.

[0013] The first and second eye cups can move relative to each other at a distance of up to about 10 millimeters.

[0014] According to a second aspect, a method for manufacturing a head-mounted display assembly is provided, the method comprising: hermetically sealing a first transparent component and a second transparent component onto a single near-eye display screen to form a closure; slidably positioning a first eyecup supporting a first lens onto the first transparent component; and slidably positioning a second eyecup supporting a second lens onto the second transparent component, wherein the first eyecup and the second eyecup are positioned to move relative to each other and relative to the first transparent component and the second transparent component to adjust according to the interpupillary distance of the user's eyes when the user wears the head-mounted display assembly.

[0015] The method may also include: positioning a first sealing element between a first eyecup and a first transparent component; and positioning a second sealing element between a second eyecup and a second transparent component.

[0016] The method may further include positioning a first transparent component at a first distance from a single near-eye display screen and positioning a second transparent component at a second distance from a single near-eye display screen, wherein the second distance may be less than the first distance.

[0017] According to a third aspect, an artificial reality device is provided, comprising: a first eyecup including a first lens; a second eyecup including a second lens, wherein the first and second eyecups are movable relative to each other to adjust according to the interpupillary distance of a user's eyes; a single near-eye display screen configured to display an image to a user through the first and second eyecups; at least one processor configured to render an image for display on the single near-eye display screen; and a closure portion located above the single near-eye display screen, the closure portion including a first transparent component located between the first lens and the single near-eye display screen and a second transparent component located between the second lens and the single near-eye display screen, wherein the first and second transparent components are stationary relative to the single near-eye display screen. Brief description of the attached diagram

[0018] The accompanying drawings illustrate numerous exemplary embodiments and are part of the specification. These drawings, together with the following description, demonstrate and explain various principles of this disclosure.

[0019] Figure 1A This is a perspective view of a head-mounted display assembly according to at least one embodiment of the present disclosure, and Figure 1B This is a cross-sectional side view of a head-mounted display assembly according to at least one embodiment of the present disclosure.

[0020] Figure 2 The optical lens according to at least one other embodiment of this disclosure is in the first IPD setting condition. Figure 1A-1B Detailed cross-sectional side view of the head-mounted display assembly.

[0021] Figure 3 The optical lens according to at least one embodiment of this disclosure is in the second IPD setting condition. Figure 1A-1B Detailed cross-sectional side view of the head-mounted display assembly.

[0022] Figure 4A and Figure 4B This is a detailed cross-sectional view of a portion of a head-mounted display assembly according to at least some embodiments of the present disclosure.

[0023] Figure 5 This is a perspective view of a head-mounted display assembly according to at least one embodiment of the present disclosure.

[0024] Figure 6 This is a front view of a head-mounted display assembly according to at least one other embodiment of the present disclosure.

[0025] Figure 7It is based on at least one embodiment of the present disclosure. Figure 6 Rear view of the stop mechanism of the head-mounted display assembly.

[0026] Figure 8 yes Figure 7 Side view of the stop mechanism.

[0027] Figure 9 This is a perspective view of a portion of a head-mounted display assembly including a position sensor, according to at least one embodiment of the present disclosure.

[0028] Figure 10 This is a flowchart illustrating a method for manufacturing a head-mounted display assembly according to at least one embodiment of the present disclosure.

[0029] Figure 11 This is a flowchart illustrating a method for adjusting the interpupillary distance of a head-mounted display assembly according to at least one embodiment of the present disclosure.

[0030] Figure 12 This is an illustration of an exemplary virtual reality headset that can be used in conjunction with embodiments of this disclosure.

[0031] Figure 13 This is an illustration of an exemplary virtual reality environment according to embodiments of the present disclosure.

[0032] Throughout the accompanying drawings, the same reference numerals and descriptions indicate similar, but not necessarily identical, elements. While the exemplary embodiments described herein allow for various modifications and alternative forms, specific embodiments are shown as examples in the drawings and will be described in detail herein. However, the exemplary embodiments described herein are not intended to limit one to the specific forms disclosed. Rather, this disclosure covers all modifications, equivalents, and alternatives falling within the scope of the appended claims. Detailed description of example embodiments

[0033] This disclosure generally relates to an HMD assembly that may include a single near-eye display (“NED”) screen and two eyecups movable relative to each other to adjust for different users’ IPDs. A closure may be disposed above the single NED screen. The closure may include a first transparent component located between a first lens and the single NED screen, and a second transparent component located between a second lens and the single NED screen.

[0034] The enclosure, including the first and second transparent components, provides a clean volume on a single NED screen to reduce contaminants on the screen while also allowing interpupillary adjustment (IPD). As explained in more detail below, embodiments of this disclosure can allow IPD adjustment on a single sealed display screen. A single display screen can reduce the cost of an HMD assembly with IPD adjustability compared to a conventional HMD assembly with two separate display screens. Furthermore, the enclosure on a single NED screen can help keep the screen clean and substantially free from contaminants that could otherwise obstruct the user's view of blocked pixels on the display screen. Contaminants (e.g., dust, particles, other debris) that may be present between the first and second lenses and their respective first and second transparent components can be substantially unfocused. Unfocused contaminants, if small enough, may be substantially invisible to the user. Even larger contaminants may be less visible than when they are located on the surface of the NED screen.

[0035] In some examples, the term "substantially" regarding a given parameter, property, or condition can mean and include to the extent that a person skilled in the art would understand that the given parameter, property, or condition satisfies a small degree of variance, such as within acceptable manufacturing tolerances. For example, depending on whether a particular parameter, property, or condition is substantially satisfied, it may be satisfied at least 90%, at least 95%, or even at least 99%.

[0036] Features from any of the embodiments described herein can be used in combination with each other based on the general principles described herein. These and other embodiments, features, and advantages will be more fully understood by reading the following detailed description in conjunction with the accompanying drawings and claims.

[0037] The following will be referenced Figures 1A-3 This disclosure provides detailed descriptions of various exemplary HMD components based on this disclosure. References Figure 4A and 4B The following provides a detailed description of an example sliding interface for IPD adjustability of HMD components, as described in this disclosure. References Figure 5 The following provides a detailed description of example HMD components according to other embodiments of this disclosure. References Figure 10 and Figure 11 The following sections provide detailed descriptions of example methods for manufacturing HMD components and adjusting the IPD of HMD components. (References) Figure 8 and Figure 9 The following provides a detailed description of example artificial reality systems and environments that can be used in conjunction with the HMD components of this disclosure.

[0038] Figure 1A and Figure 1BThe illustration shows an HMD component 100, which may include a first eyecup 102 and a second eyecup 104 positioned on a single NED screen 106, wherein a closure 108 is positioned between the eyecups 102, 104 and the single NED screen 106. Figure 2 The illustration shows detailed views of certain components of the HMD component 100. (Reference) Figure 1A-Figure 2 The eye cups 102 and 104, the single NED screen 106, and the closure 108 can be mounted on the HMD support frame 110, which can also support the eye support 112, which can be shaped and positioned to rest against the user's face when the user wears the HMD component 100. In some examples, a flexible shield 109 can be positioned over at least some portions (e.g., peripheral portions) of the eye cups 102 and 104 to provide an aesthetic and / or dustproof cover over the lower part of the HMD component 100.

[0039] In some instances, unless the context clearly indicates otherwise, relevant terms (such as "first," "second," "upper," "lower," "over," "underlying," etc.) may be used to clearly and conveniently understand this disclosure and the accompanying drawings, and may not necessarily imply or depend on any particular preference, orientation, or order.

[0040] Eyecups 102 and 104 can be configured to be positioned in front of the intended location of the user's eyes when the user wears the HMD component 100. For example, the first eyecup 102 can be configured to view a single NED screen 106 through the user's left eye, and the second eyecup 104 can be configured to view a single NED screen 106 through the user's right eye. The first eyecup 102 can support a first optical lens 114, and the second eyecup 104 can support a second optical lens 116. For example, each of the optical lenses 114 and 116 can be a corrective ophthalmic lens (e.g., a positive power (i.e., magnifying) lens, a negative power (i.e., reducing) lens, a lens for correcting aberrations, etc.), a zero-power optical lens, an adjustable (e.g., deformable) optical lens, a Fresnel lens, or another optical lens element. Optionally, an anti-reflective coating can be applied to the optical lenses 114 and 116.

[0041] The first eyecup 102 may include a first rigid housing 118 that at least partially defines a first internal volume 120. Similarly, the second eyecup 104 may include a second rigid housing 122 that at least partially defines a second internal volume 124. The base of the first rigid housing 118 may include a first flange 126 that extends radially outward from a sidewall of the first rigid housing 118. Similarly, the base of the second rigid housing 122 may include a second flange 128 that extends radially outward from a sidewall of the second rigid housing 122.

[0042] Optical lenses 114 and 116 may be sealed (e.g., hermetically sealed) against and supported by rigid housings 118 and 122. Optical lenses 114 and 116 may be positioned to focus the image displayed on a single NED screen 106 onto the user's eyes when the user wears the HMD component 100.

[0043] The closure 108 may include a first transparent component 130 located between a first optical lens 114 and a single NED screen 106, and a second transparent component 132 located between a second optical lens 116 and the single NED screen 106. The outer regions of the first transparent component 130 and the second transparent component 132 may be coupled to the eye-facing surface of the single NED screen 106 via a sealing structure 134 of the HMD support frame 110. Therefore, the closure 108 may be defined by the first transparent component 130 and the second transparent component 132, the single NED screen 106, and the sealing structure 134. In some examples, the closure 108 may be an hermetically sealed closure to prevent contaminants (e.g., particles) from being introduced onto the eye-facing surface of the single NED screen 106. For a user viewing the single NED screen 106 through the optical lenses 114, 116, contaminants that may be present on the first transparent component 130 and the second transparent component 132 (e.g., outside the closure 108) may be substantially out of focus.

[0044] By way of example and not limitation, the first transparent component 130 and the second transparent component 132 may be made of the same material or two different materials, or may include the same material or two different materials. The first transparent component 130 and the second transparent component 132 may include glass materials, transparent polymer materials (e.g., polycarbonate, polymethyl methacrylate, polyethylene terephthalate, cyclic olefin copolymers, polypropylene, styrene-methyl methacrylate, styrene-acrylonitrile resin, polystyrene, etc.) and / or crystalline materials, etc. In some examples, the first transparent component 130 and the second transparent component 132 may be substantially flat and may exhibit substantially zero optical power. The first transparent component 130 and the second transparent component 132 may be stationary relative to the single NED screen 106, the eye support 112, and the sealing structure 134. By configuring the first transparent component 130 and the second transparent component 132 to be stationary relative to the single NED screen 106, the number of moving parts adjacent to the single NED screen 106 that might otherwise generate or move contaminants (e.g., particles) can be reduced.

[0045] A first sealing element 136 may be disposed between a first flange 126 and a first transparent component 130. A second sealing element 138 may be disposed between a second flange 128 and a second transparent component 130. The first sealing element 136 and the second sealing element 138 may be configured to allow the first eyecup 102 and the second eyecup 104 to move (e.g., slide) relative to the first transparent component 130 and the second transparent component 132, for example, to adjust the IPD setting of the HMD assembly 100. The first sealing element 136 and the second sealing element 138 may be configured to inhibit particle entry into the first internal volume 120 and the second internal volume 124.

[0046] By way of example and not limitation, the first sealing element 136 and the second sealing element 138 may each be an O-ring, a foam (e.g., closed-cell foam) ring, a foam ring bonded to a structural base (e.g., a foam ring bonded to a polyethylene terephthalate base), a V-ring, an X-ring, a gasket, etc. The materials of the first sealing element 136 and the second sealing element 138 may be or include polymeric materials, such as elastomer materials, foam materials, combinations thereof, etc.

[0047] As described above, the first eyecup 102 and the second eyecup 104 can be movable relative to each other (e.g., in a direction parallel to the surface of the single NED screen 106, for example, from...). Figure 1A and Figure 1BThe eye cups (viewed from left to right) are adjusted according to the user's eye IPD. At least one of the eye cups 102 and 104 may also be movable relative to the single NED screen 106. In some embodiments, the first eye cup 102 and the second eye cup 104 may be movable relative to each other at a distance of up to about 10 mm. The eye cups 102 and 104 may be independently movable relative to the HMD support frame 110, or the eye cups 102 and 104 may be configured to move simultaneously inward (e.g., toward each other) or outward (e.g., away from each other) relative to the single NED screen 106 at substantially equal distances and rates.

[0048] As an example Figure 1A As shown, one or more IPD input mechanisms 140 (e.g., switches, sliders, knobs, buttons, etc.) can be integrated into the HMD support frame 110 and configured to allow the user of the HMD component 100 to adjust the IPD of the eyecups 102, 104 according to preference. Optionally or additionally, IPD adjustment can be performed by one or more electromechanical actuators (e.g., linear actuators, rotary motors, etc.), which can be controlled by a computing system associated with the HMD component 100 or by the user's manipulation of (one or more) IPD input mechanisms 140.

[0049] The first IPD setting IPD1 can correspond to the situation where the first optical lens 114 and the second optical lens are in the first position (e.g., ...). Figure 2 As shown, the distance between the first optical axis A1 of the first optical lens 114 and the second optical axis A2 of the second optical lens 116 is as follows. The second IPD setting IPD2 can correspond to the distance between the first optical lens 114 and the second optical lens when they are in the second position (e.g., ...). Figure 3 As shown, this refers to the distance between the first optical axis A1 and the second optical axis A2. In the example shown, the first eyecup 102 and the second eyecup 104 are closer to each other at the second IPD setting IPD2 compared to the first IPD setting IPD1. Therefore, the first IPD setting IPD1 can be used for users with a generally wider IPD, while the second IPD setting IPD2 can be used for different users with a generally narrower IPD.

[0050] refer to Figure 2 and Figure 3 The first transparent component 130 may be positioned at a first distance D1 from the single NED screen 106, and the second transparent component 132 may be positioned at a second distance D2 from the single NED screen 106. By way of example and not limitation, each of the first distance D1 and the second distance D2 may be within the range of about 10 mm to about 20 mm.

[0051] In some embodiments, the first distance D1 may be different from the second distance D2. For example, the first distance D1 may be at least about 2 mm larger than the second distance D2. The difference between the first distance D1 and the second distance D2 allows a portion of the first flange 126 and the second flange 128 between the first eyecup 102 and the second eyecup 104 to overlap when the first eyecup 102 and the second eyecup 104 are brought close together (e.g., when the second IPD is set to IPD2). Figure 3 As shown. Therefore, the difference between the first distance D1 and the second distance D2 can help the first eyecup 102 and the second eyecup 104 to be positioned closer together than would have been possible without this difference, because the first flange 126 and the second flange 128 are at different levels, and therefore do not physically interfere with each other at the second IPD setting IPD2.

[0052] A single NED screen 106 may include an electronic display screen for presenting visual content to a user. For example, a single NED screen 106 may include a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic LED (OLED) display, a waveguide for directing light from a projector to the user, and / or any other suitable type of display screen. In some embodiments, the single NED screen 106 may be configured to display corresponding stereoscopic images to the user via a first eyecup 102 and a second eyecup 104 to create the impression of a three-dimensional image.

[0053] Figure 4A The illustration shows a detailed cross-sectional view of a portion of the HMD component 400A. Similar to the reference above. Figures 1A-3 HMD component 100 described, Figure 4A The HMD assembly 400A may include a first eyecup 402 and a second eyecup 404 disposed on a first transparent member 430 and a second transparent member 432, respectively. The first eyecup 402 may include a first rigid housing 418, and the second eyecup 404 may include a second rigid housing 422. A first flange 426 may extend radially outward from a sidewall of the first rigid housing 418, and a second flange 428 may extend radially outward from a sidewall of the second rigid housing 422. A first sealing element 436 may be positioned between the first flange 426 and the first transparent member 430 to form a seal (e.g., an airtight seal) between the first eyecup 402 and the first transparent member 430. Similarly, a second sealing element 438 may be positioned between the second flange 428 and the second transparent member 432 to form a seal (e.g., an airtight seal) between the second eyecup 404 and the second transparent member 432.

[0054] By way of example and not limitation, the first flange 426 may include a first groove 442 in which a portion of the first sealing element 436 may be positioned. Thus, the first sealing element 436 may be coupled to the first flange 426 and may be movable relative to the first transparent component 430 together with the first flange 426. A first sliding interface 444 may be located between the first sealing element 436 and the first transparent component 430. Similarly, the second flange 428 may include a second groove 446 in which a portion of the second sealing element 438 may be positioned. The second sealing element 438 may be coupled to the second flange 428 and may be movable relative to the second transparent component 432 together with the second flange 428. A second sliding interface 448 may be located between the second sealing element 438 and the second transparent component 432. In this case, for adjustment according to the user's IPD, the first eyecup 402 and the second eyecup 404, as well as the first sealing element 436 and the second sealing element 438, may be movable relative to the first transparent component 430 and the second transparent component 432.

[0055] Figure 4B The illustration shows a different Figure 4A A detailed cross-sectional view of a portion of the construction of HMD component 400A and HMD component 400B. In this example, a first recess 442 may be located in a first transparent member 430, and a portion of a first sealing element 436 may be located in the first recess 442. Therefore, a first sliding interface 444 may be located between the first sealing element 436 and the first flange 426. Similarly, a second recess 446 may be located in a second transparent member 432, and a portion of a second sealing element 438 may be located in the second recess 446. Therefore, a second sliding interface 448 may be located between the second sealing element 438 and the second flange 428. In this case, for adjustment according to the user's IPD, the first eyecup 402 and the second eyecup 404 may be movable relative to the first transparent member 430 and the second transparent member 432, and relative to the first sealing element 436 and the second sealing element 438.

[0056] Figure 5 This is a perspective view of a portion of an HMD component 500 according to another embodiment of this disclosure. Figure 5 In order to better view the lower part of the HMD component 500, some parts of the HMD component 500 have been removed. Figure 5 The HMD component 500 can be similar to the one mentioned above. Figures 1A-3The HMD component 100 is described. For example, the HMD component 500 may include a first eyecup 502 and a second eyecup 504 located above a single NED screen 506. The eyecups 502, 504 and the single NED screen 506 may be coupled to and supported by an HMD support frame 510. The first eyecup 502 may include a first rigid housing 518, and a first optical lens 514 may be coupled to the first rigid housing 518. The second eyecup 504 may include a second rigid housing 522, and a second optical lens (for clarity, ...) Figure 5 (Not shown in the view) can be coupled to a second rigid housing 522. A first rigid housing 518 can at least partially define a first internal volume 520 of a first eyecup 502. Similarly, a second rigid housing 522 can at least partially define a second internal volume 524 of a second eyecup 504.

[0057] The first eyecup 502 and the second eyecup 504 can be positioned at the closure 508 (in... Figure 5 (Seen in dashed lines) is movable above and relative to the closure 508, which can be positioned above the individual NED screen 506. The closure 508 can be hermetically sealed to prevent contaminants from being introduced onto the user-facing surface of the individual NED screen 506.

[0058] The eye cups 502 and 504 may be movable relative to each other and / or relative to a single NED screen 506, for example, to be adjusted according to the user's IPD. Figure 5 The HMD component 500 may also include an IPD adjustment mechanism 550, which may include a track 552 (e.g., a rod, slide, etc.), a first IPD adjustment bracket 554 slidably coupled to the first rigid housing 518 and the track 552, and a second IPD adjustment bracket 556 slidably coupled to the second rigid housing 522 and the track 552. In some examples, the IPD adjustment mechanism 550 may also include one or more IPD input mechanisms (in... Figure 5 Not shown in the view, but similar to the IPD input mechanism 140 described above, the user can interact with this IPD input mechanism to control the movement of the eyecups 502, 504 for IPD adjustment. Alternatively, cams, pushers, electromechanical actuators (e.g., motors, linear actuators, etc.) or other suitable components may be included to move the IPD adjustment supports 554, 556 and the eyecups 502, 504 along the track 552.

[0059] like Figure 5As shown, in some embodiments, the IPD adjustment brackets 554, 556 may each include two spaced-apart slider elements 558 that engage with and are movable along the track 552 to provide sufficient stability for the respective eyecups 502, 504. The slider elements 558 may engage with the track 552 in a manner that holds the eyecups 502, 504 in place after IPD adjustment. In some examples, a stop mechanism 560 may be used after IPD adjustment (in... Figure 5 (Seen in dashed lines) to hold eyecups 502 and 504 in their relative positions. For example, stop mechanism 560 may include a ratchet, friction interface, pin and rack, or another suitable mechanism for holding eyecups 502 and 504 in their relative positions. In some examples, HMD assembly 500 may optionally include another set of rails and IPD adjustment brackets located at the eyecups 502 and 504 relative to... Figure 5 The track 552 and IPD adjustment brackets 554 and 556 shown are on opposite sides, for example, for additional mechanical stability.

[0060] Figure 6 This is a front view of an HMD assembly 600, which may include a first eyecup 602 (e.g., a left eyecup for positioning a first optical lens over the intended user's left eye) and a second eyecup 604 (e.g., a right eyecup for positioning a second optical lens over the intended user's right eye) located above a single NED screen 605. As described above, a closure may be positioned between the eyecups 602, 604 and the single NED screen 605. The eyecups 602, 604 and the single NED screen may be mounted on an HMD support frame 608.

[0061] Eyecups 602 and 604 may be movable relative to the HMD support frame 608 and / or relative to each other to allow adjustment according to the user's IPD. For example, each of eyecups 602 and 604 may be slidably coupled to and movable along an upper rail 606, which may be mounted on the HMD support frame 608. Eyecups 602 and 604 may also be slidably coupled to and movable along a first lower rail 610 and a second lower rail 612, which may be mounted on the HMD support frame 608. The first lower rail 610 and the second lower rail 612 may be located on the side of the eyecups 602 and 604 opposite to the upper rail 606. Figure 6As shown, in some examples, the first lower track 610 and the second lower track 612 can be independent of each other to accommodate the intended user's nose. In other examples, the first lower track 610 and the second lower track 612 can be parts of a single, complete, or integral track.

[0062] HMD assembly 600 may also include a stop mechanism 614 to hold eyecups 602, 604 in place relative to each other and relative to the HMD support frame 608. In some embodiments, the stop mechanism 614 may also be configured to maintain each eyecup 602, 604 substantially equidistant from the lateral centerline of HMD assembly 600. Figure 6 As shown, the stop mechanism 614 may include a first rack 616 extending inwardly from the first eyecup 602, a second rack 618 extending inwardly from the second eyecup 604, and a pinion 620 engaging with the first rack 616 and the second rack 618. The pinion 620 is rotatably coupled to the HMD support frame 608. The teeth of the pinion 620 can engage with the teeth of the first rack 616 on a first side of the pinion 620 and with the teeth of the second rack 618 on an opposite second side of the pinion 620. Therefore, when the first eyecup 602 is inwardly (e.g., from...), the stop mechanism 614 can stop the movement of the first eyecup 602 inwardly (e.g., from...). Figure 6 From the perspective of [the viewpoint], when moving to the right, due to the rotation of the pinion 620, the second eyecup 604 can also move inward (e.g., from [the viewpoint]). Figure 6 From the perspective of [the viewpoint], moving to the left. Similarly, when the first eye cup 602 moves outward (e.g., from [the viewpoint]), [it moves to the left]. Figure 6 From the perspective of [the viewpoint], when moving to the left, due to the rotation of the pinion 620 in the opposite direction, the second eyecup 604 can also move outward (e.g., from [the viewpoint]). Figure 6 From your perspective, move to the right.

[0063] The stop mechanism 614 may include features that allow the eyecups 602 and 604 to remain in place once moved. For example, the stop mechanism 614 can hold the eyecups 602 and 604 in two, three, four, or five different positions. Figure 7 and Figure 8 The figure shows an exemplary embodiment of a stop mechanism 614 that can hold eyecups 602 and 604 in place.

[0064] Figure 7 This is a rear view of the stop mechanism 614, and Figure 8 This is a side view of the stop mechanism 614. (As shown) Figure 8 As shown, the pinion 620 can be mounted on the stop base 622. Figure 7 and Figure 8As shown, on the reverse side of the stop base 622 opposite to the pinion 620, the stop base 622 may include a recess 624. One or more stop extensions 626 may be mounted to the HMD support frame 608. Figure 6 In the illustrated embodiment, two stop extensions 626 are present; however, in other embodiments, a single stop extension 626 or more than two stop extensions 626 may be used. When the stop extensions 626 and the recesses 624 are aligned with each other, the stop extensions 626 may be biased toward the stop base 622 (e.g., spring-loaded) and positioned relative to at least one recess in the recesses 624 to protrude into the corresponding recess 624.

[0065] For example, such as Figure 7 and Figure 8 As shown, the stop extension 626 may include a ball biased toward the stop base 622 by a coil spring 628. However, the stop extension 626 of this disclosure is not limited to this configuration. In other embodiments, the stop extension 626 may have a cylindrical shape, a hemispherical shape, a pin shape, a shaft with a rounded end, a shaft with an inclined end (e.g., having a triangular or trapezoidal longitudinal cross-section), or any other suitable shape. Furthermore, the stop extension 626 may be biased toward the stop base 622 using a biasing element that is not a coil spring, such as a leaf spring, an elastomer, or another suitable biasing element.

[0066] The stop mechanism 614 can be configured to position the eyecup 602 at a predetermined IPD setting. For example, the eyecups 602 and 604 can be moved inward or outward by a user applying an inward or outward physical force directly to one or both of the eyecups 602 and 604. In another embodiment, an IPD adjustment mechanism, such as the one referenced above, can be used. Figure 1A The described IPD adjustment mechanism 140 or electromechanical actuator. When the eyecup 602, 604 ( Figure 6When moving inward or outward, the first rack 616 and / or the second rack 618 can interact with the pinion 620 to rotate the pinion 620. The rotation of the pinion 620, in turn, causes the stop base 622 to rotate. As the stop base 622 rotates, the stop extension 626 can overcome the biasing force applied by the coil spring 628 and be forced out of the corresponding recess 624. As the stop base 622 continues to rotate, the stop extension 626 can be biased into other adjacent recesses 624, providing the user with a tactile indication (e.g., a click or tap) that the eyecups 602, 604 are in a predetermined IPD setting. The recesses 624 can be sized and spaced to correspond to a certain number of predetermined IPD settings, such as two (e.g., large and small), three (e.g., large, medium, and small), four, or five predetermined IPD settings. In one example, the groove 624 can be sized and spaced to correspond to a first small IPD setting of approximately 58 mm, a second medium IPD setting of approximately 63 mm, and a third large IPD setting of approximately 68 mm, measured between the optical axes of the eyecups 602 and 604.

[0067] Refer again Figure 6 In some examples, the HMD component 600 may also include an IPD indicator 630 to provide an indication of the current IPD setting. For example, the IPD indicator 630 may include a hole through a structure coupled to the first eyecup 602 or the second eyecup 604. Below the hole, there may be a visual indication of the IPD setting. For example, the visual indication may include the letters S, M, and L corresponding to small, medium, and large IPD settings. Other exemplary visual indications may include numbers (e.g., 1 to 5 corresponding to five IPD settings, or 58, 63, and 68 corresponding to IPD settings in millimeters, etc.), other letters (e.g., A to D corresponding to four IPD settings, "min," "med," and "max" corresponding to minimum, medium, and maximum IPD settings, etc.), colors (e.g., green, yellow, and red corresponding to three IPD settings, etc.), diagrams (e.g., showing eyes at different distances from each other, etc.), or combinations thereof. When the stop mechanism 614 is used to set the eye cups 602 and 604 to one of the predetermined IPD settings, the hole of the IPD indicator 630 can be aligned with one of the visual indicators of the IPD setting, so that the user can view the visual indicator through the hole to determine the current IPD setting.

[0068] Even with the stop mechanism 614 in use, the HMD component 600 can benefit from the position sensor to accurately measure and / or verify the current IPD setting of the HMD component 600. Figure 9 The illustration shows a portion of an HMD component 900 with an IPD position sensor 942. In some respects, the HMD component 900 may be similar to... Figure 6HMD component 600. For example, HMD component 900 may include a first eye cup 902, a second eye cup 904, a single NED screen 905, an eye cup 902, 904 along which the track 906 can be moved to adjust IPD settings, an HMD support frame 908, a stop mechanism, and an IPD indicator 930.

[0069] IPD position sensor 942 can be configured to sense the lateral position of one or both of the eyecups 902 and 904 relative to each other and / or relative to the HMD support frame 908. For example, IPD position sensor 942 may include a Hall effect sensor, a rotary encoder, a linear encoder, or another suitable position sensor. Figure 9 In the example shown, the IPD position sensor 942 is illustrated as a Hall effect sensor configured to sense the magnitude of the magnetic field of a moving magnet. The IPD position sensor 942 may include a probe 944 mounted to the HMD support frame 908 and a permanent magnet 946 mounted to one of the eyecups 902, 904. When the eyecups 902, 904 move laterally, the permanent magnet 946 may move relative to the probe 944. This movement of the permanent magnet 946 can cause a change in the magnitude of the magnetic field sensed by the probe 944. This change in magnitude sensed by the probe 944 can be correlated with the relative position between the probe 944 and the permanent magnet 946, and ultimately with the relative position between the eyecups 902, 904. Data from the IPD position sensor 942 can be used to determine the actual IPD setting of the eyecups 902, 904, for example, by software to adjust the image displayed on a single NED screen 905 to provide the user with an indication of the IPD setting.

[0070] exist Figure 9 In the embodiment illustrated, probe 944 is mounted on HMD support frame 908, and permanent magnet 946 is mounted on one of eyecups 902 and 904. However, this disclosure is not limited to this configuration. In another embodiment, probe 944 may be mounted on one of eyecups 902 and 904, and permanent magnet 946 may be mounted on HMD support frame 908, or probe 944 may be mounted on one of eyecups 902 and 904, and permanent magnet 946 may be mounted on the other. In yet another embodiment, permanent magnet 946 may be replaced by a non-permanent magnet such as an electromagnet. In another embodiment, as described above, IPD position sensor 942 may be a position sensor of a type other than a Hall effect sensor.

[0071] Figure 10This is a flowchart illustrating a method 1000 for manufacturing an HMD component according to at least one embodiment of the present disclosure. At operation 1010, a first transparent component and a second transparent component may be positioned and hermetically sealed onto a single NED screen to form a closure. Operation 1010 can be performed in various ways. For example, the first transparent component may be positioned at a first distance from the single NED screen, and the second transparent component may be positioned at a different second distance from the single NED screen. In some embodiments, the hermetically sealed connection may be achieved by a sealing structure that couples the transparent component to the single NED screen.

[0072] At operation 1020, the first eyecup supporting the first lens is slidably positioned on the first transparent component. Operation 1020 can be performed in several ways. For example, the first sealing element can be positioned between the first eyecup and the first transparent component. The first sliding interface can be between the first eyecup and the first sealing element, or alternatively, between the first transparent component and the first sealing element.

[0073] At operation 1030, the second eyecup supporting the second lens can be slidably positioned over the second transparent component. Operation 1030 can be performed in various ways. For example, a second sealing element can be positioned between the second eyecup and the second transparent component. A second sliding interface can be between the second eyecup and the second sealing element, or alternatively, between the second transparent component and the second sealing element. The first and second eyecups can move relative to each other, for example, adjusted according to the user's IPD of the HMD component. In some embodiments, the corresponding distances between the individual NED screen and the first and second transparent components can be different, for example, allowing flanges extending radially outward from the eyecup to at least partially overlap each other when the IPD of the eyecup is set to its minimum operating position.

[0074] In some examples, method 1000 may also include additional operations. For example, the IPD adjustment mechanism may be assembled in place to the first and second eyecups so that the first and second eyecups can move relative to each other, for example, according to IPD adjustment.

[0075] Figure 11This is a flowchart illustrating a method 1100 for adjusting the interpupillary distance (IPD) of an HMD component according to at least one embodiment of the present disclosure. At operation 1110, a first eyecup can be moved over a first transparent component located above a single NED screen. At operation 1120, a second eyecup can be moved over a second transparent component located above a single NED screen. Operations 1110 and 1120 can be performed in various ways. For example, the eyecups can be moved toward or away from each other to adjust according to the user's IPD. The single NED screen, the first transparent component, and the second transparent component can define an airtight, sealed closure.

[0076] Therefore, this disclosure includes HMD components and related methods that can achieve IPD regulation to suppress (e.g., reduce or eliminate) the introduction of contaminants onto the display screen. Simultaneously, the disclosed HMD components may include a single NED screen, which can reduce the cost of manufacturing and operating the HMD components. Various configurations and materials are disclosed, each of which can be advantageously used for a variety of purposes and applications.

[0077] As described above, embodiments of this disclosure may include various types of artificial reality systems or combinations thereof. Artificial reality content may include video, audio, haptic feedback, or some combination thereof, any of which may be presented in a single channel or multiple channels (such as stereoscopic video that produces a three-dimensional (3D) effect for the viewer). Furthermore, in some embodiments, artificial reality may also be associated with applications, products, accessories, services, or some combination thereof for purposes such as creating content in artificial reality and / or being used in artificial reality in other ways (e.g., performing activities in artificial reality).

[0078] Artificial reality systems can be implemented with a variety of different shape factors and configurations. Artificial reality systems can include virtual reality (NEDs) that provide visibility into the real world (e.g., augmented reality systems) or visually immerse a user in an artificial reality (e.g., [missing information]). Figure 12 (Virtual Reality System 1200). While some artificial reality devices can be standalone systems, others can communicate and / or coordinate with external devices to provide an artificial reality experience to a user. Examples of such external devices include handheld controllers, mobile devices, desktop computers, devices worn by a user, devices worn by one or more other users, and / or any other suitable external system.

[0079] As mentioned above, some artificial reality systems can essentially replace one or more of a user's sensory perceptions of the real world with virtual experiences. An example of this type of system is a head-worn display system, such as... Figure 12 The virtual reality system 1200 completely or almost completely covers the user's field of vision. The virtual reality system 1200 may include a front rigid body 1202 and a band 1204 shaped to fit around the user's head. The virtual reality system 1200 may also include output audio transducers 1206(A) and 1206(B). Furthermore, although in Figure 12 Not shown, but the front rigid body 1202 may include one or more electronic components, including one or more electronic displays, one or more inertial measurement units (IMUs), one or more tracking transmitters or detectors, and / or any other suitable means or systems for creating artificial reality experiences.

[0080] Artificial reality systems can include various types of visual feedback mechanisms. For example, the display device in the virtual reality system 1200 can include one or more liquid crystal displays (LCDs), light-emitting diode (LED) displays, organic LED (OLED) displays, and / or any other suitable type of display screen. As mentioned above, an artificial reality system can include a single display screen for both eyes. Some artificial reality systems may also include an optical subsystem with one or more lenses (e.g., conventional concave or convex lenses, Fresnel lenses, adjustable liquid lenses, etc.) through which the user views the display screen.

[0081] In addition to or instead of using a display screen, some artificial reality systems may include one or more projection systems. For example, the display device in virtual reality system 1200 may include (using, for example, a waveguide) a micro-LED projector that projects light onto the display device, such as a transparent combination lens that allows ambient light to pass through. The display device may refract the projected light toward the user's pupil, allowing the user to view both artificial reality content and the real world simultaneously. Artificial reality systems may also be configured with any other suitable type or form of image projection system.

[0082] Artificial reality systems can also include various types of computer vision components and subsystems. For example, virtual reality system 1200 may include one or more optical sensors, such as two-dimensional (2D) or 3D cameras, time-of-flight depth sensors, single-beam or scanning laser rangefinders, 3D LiDAR sensors, and / or any other suitable type or form of optical sensor. The artificial reality system can process data from one or more of these sensors to identify the user's location, map the real world, provide the user with context about the real-world environment, and / or perform a variety of other functions.

[0083] Artificial reality systems may also include one or more input and / or output audio transducers. Figure 12 In the examples shown, output audio transducers 1206(A) and 1206(B) may include voice coil speakers, ribbon speakers, electrostatic speakers, piezoelectric speakers, bone conduction transducers, cartilage conduction transducers, and / or any other suitable type or form of audio transducer. Similarly, input audio transducers may include condenser microphones, dynamic microphones, ribbon microphones, and / or any other type or form of input transducer. In some embodiments, a single transducer may be used for both audio input and audio output.

[0084] Although Figure 12 Not shown, but artificial reality systems can include tactile (i.e., haptic) feedback systems, which can be integrated into headwear, gloves, bodysuits, handheld controllers, environmental devices (e.g., chairs, floor mats, etc.), and / or any other type of device or system. Haptic feedback systems can provide various types of skin feedback, including vibration, force, traction, texture, and / or temperature. Haptic feedback systems can also provide various types of kinematic feedback, such as motion and compliance. Haptic feedback can be implemented using motors, piezoelectric actuators, flow control systems, and / or various other types of feedback mechanisms. Haptic feedback systems can be implemented independently of other artificial reality devices, within other artificial reality devices, and / or in conjunction with other artificial reality devices.

[0085] By providing tactile sensations, audible content, and / or visual content, artificial reality systems can create entire virtual experiences or enhance a user's real-world experiences across a variety of contexts and environments. For example, artificial reality systems can assist or extend a user's perception, memory, or cognition within a specific environment. Some systems can enhance a user's interaction with others in the real world or enable more immersive interaction with others in the virtual world. Artificial reality systems can also be used for educational purposes (e.g., for teaching or training in schools, hospitals, government organizations, military organizations, businesses, etc.), entertainment purposes (e.g., for playing video games, listening to music, watching video content, etc.), and / or for assistive purposes (e.g., as hearing aids, visual aids, etc.). The embodiments disclosed herein can realize or enhance a user's artificial reality experience in one or more of these contexts and environments and / or in other contexts and environments.

[0086] As described above, the artificial reality system 1200 can be used with a variety of other types of devices to provide a more immersive artificial reality experience. These devices may include a tactile interface with transducers that provides tactile feedback and / or collects tactile information about the user's interaction with the environment. The artificial reality systems disclosed herein may include various types of tactile interfaces that detect or convey various types of tactile information, including tactile feedback (e.g., feedback detected by a user through nerves in the skin, also known as dermal feedback) and / or kinesthetic feedback (e.g., feedback detected by a user through receptors located in muscles, joints, and / or tendons).

[0087] Haptic feedback can be provided by interfaces located within the user's environment (e.g., chairs, tables, floors, etc.) and / or by interfaces on items that the user can wear or carry (e.g., gloves, wristbands, etc.). As an example, a vibratory haptic system may take the form of wearable gloves and / or wristbands. Haptic devices may include flexible, wearable textile materials shaped and configured to be positioned against the user's hand and wrist, respectively. This disclosure also includes vibratory haptic systems that may be shaped and configured to be positioned against other body parts (e.g., fingers, arms, head, torso, feet, or legs). As an example and not a limitation, vibratory haptic systems according to various embodiments of this disclosure may also take the form of gloves, headbands, armbands, sleeves, hoods, socks, shirts, or trousers, and other possibilities exist. In some examples, the term "textile" may include any flexible, wearable material, including woven fabrics, non-woven fabrics, leather, cloth, flexible polymer materials, composite materials, etc.

[0088] Haptic wearable devices can be implemented in various types of artificial reality systems and environments. Figure 13An example artificial reality environment 1300 is shown, comprising a head-mounted virtual reality display and two haptic devices (i.e., gloves). In other embodiments, any number and / or combination of these and other components may be included in the artificial reality system. For example, in some embodiments, multiple head-mounted displays may be present, each with an associated haptic device, and each head-mounted display and each haptic device may communicate with the same console, portable computing device, or other computing system.

[0089] Head-mounted display 1302 generally refers to any type or form of virtual reality system, such as Figure 12 The virtual reality system 1200 is described above. The haptic device 1304 generally refers to any type or form of wearable device worn by a user of the artificial reality system, which provides haptic feedback to the user, giving the user the sensation that he or she is physically in contact with a virtual object. In some embodiments, the haptic device 1304 can provide haptic feedback by applying vibration, motion, and / or force to the user. For example, the haptic device 1304 can restrict or enhance the user's movement. As a specific example, the haptic device 1304 can restrict the user's hand from moving forward, giving the user the sensation that his or her hand has physically contacted a virtual wall. In this particular example, one or more actuators within the haptic device can achieve physical movement restriction by pumping fluid into an inflatable sac within the haptic device. In some examples, the user can also use the haptic device 1304 to send action requests to a console. Examples of action requests include, but are not limited to, requests to launch and / or terminate an application and / or requests to perform a specific action within an application.

[0090] The haptic device 1304 may include any suitable number and / or type of haptic transducers, sensors, and / or feedback mechanisms. For example, the haptic device 1304 may include one or more mechanical transducers, piezoelectric transducers, and / or fluid transducers. The haptic device 1304 may also include various combinations of different types and forms of transducers that work together or independently to enhance the user's artificial reality experience.

[0091] As a non-limiting example, the following embodiments are included in this disclosure.

[0092] Example 1: A head-mounted display assembly may include: a first eyecup and a second eyecup configured to position a first lens and a second lens respectively in front of a desired position of the user's eyes when the user wears the head-mounted display assembly; a single near-eye display screen configured to display an image to the user through the first eyecup and the second eyecup; and a closure portion located above the single near-eye display screen, the closure portion including: a first transparent component located between the first lens and the single near-eye display screen and a second transparent component located between the second lens and the single near-eye display screen, wherein the first eyecup and the second eyecup are movable relative to each other and relative to the first transparent component and the second transparent component to adjust according to the interpupillary distance of the user's eyes.

[0093] Example 2: The head-mounted display assembly according to Example 1, wherein at least one of the first eye cup or the second eye cup is movable relative to a single near-eye display screen.

[0094] Example 3: A head-mounted display assembly according to Example 1 or Example 2, wherein a first transparent component is located at a first distance from a single near-eye display screen, and a second transparent component is located at a second distance from a single near-eye display screen, wherein the second distance is less than the first distance.

[0095] Example 4: The head-mounted display assembly according to Example 3, wherein each of the first distance and the second distance is within the range of about 10 mm to about 20 mm.

[0096] Example 5: The head-mounted display assembly according to Example 3 or 4, wherein the difference between the first distance and the second distance is at least about 2 millimeters.

[0097] Example 6: A head-mounted display assembly according to any one of Examples 1 to 5, wherein the first transparent component and the second transparent component may comprise at least one of the following: a polymer material; a glass material; or a crystal material.

[0098] Example 7: A head-mounted display assembly according to any one of Examples 1 to 6, wherein the closure may include an hermetically sealed closure defined above a single near-eye display screen and below a first transparent member and a second transparent member.

[0099] Example 8: A head-mounted display assembly according to any one of Examples 1 to 7, wherein the first transparent component and the second transparent component are positioned at a distance from a single near-eye display screen such that contaminants placed on the first transparent component and the second transparent component are substantially unfocused for a user viewing the single near-eye display screen through the first lens and the second lens.

[0100] Example 9: The head-mounted display assembly according to any one of Examples 1 to 8 may further include a first sealing element positioned between a first eyecup and a first transparent component, and a second sealing element positioned between a second eyecup and a second transparent component.

[0101] Example 10: The head-mounted display assembly according to Example 9, wherein a first sliding interface is located between a first sealing element and a first transparent component, and a second sliding interface is located between a second sealing element and a second transparent component.

[0102] Example 11: The head-mounted display assembly according to Example 9, wherein a first sliding interface is located between a first sealing element and a first eyecup, and a second sliding interface is located between a second sealing element and a second eyecup.

[0103] Example 12: A head-mounted display assembly according to any one of Examples 9 to 11, wherein each of the first sealing element and the second sealing element may include at least one of the following: an elastomeric material; or a closed-cell foam material.

[0104] Example 13: A head-mounted display assembly according to any one of Examples 1 to 12, wherein: the first eyecup may include a first sidewall and a first flange extending radially outward from the first sidewall adjacent to the first transparent component; and the second eyecup may include a second sidewall and a second flange extending radially outward from the second sidewall adjacent to the second transparent component.

[0105] Example 14: The head-mounted display assembly according to any one of Examples 1 to 13 may further include an interpupillary distance adjustment mechanism coupled to a first eyecup and a second eyecup and for adjusting the distance between the first eyecup and the second eyecup.

[0106] Example 15: The head-mounted display assembly according to Example 14 may further include a stop mechanism configured to maintain the relative positions of the first and second eyecups after adjustment based on the interpupillary distance of the user's eyes.

[0107] Example 16: A head-mounted display assembly according to any one of Examples 1 to 15, wherein the first eyecup and the second eyecup are movable relative to each other at a distance of up to about 10 mm.

[0108] Example 17: A method of manufacturing a head-mounted display assembly, the method comprising: hermetically sealing a first transparent component and a second transparent component onto a single near-eye display screen to form a closure; slidably positioning a first eyecup supporting a first lens onto the first transparent component; and slidably positioning a second eyecup supporting a second lens onto the second transparent component, wherein the first and second eyecups are positioned to move relative to each other and relative to the first and second transparent components to adjust according to the interpupillary distance of the user's eyes when the user wears the head-mounted display assembly.

[0109] Example 18: The method according to Example 17 may further include: positioning a first sealing element between a first eyecup and a first transparent component; and positioning a second sealing element between a second eyecup and a second transparent component.

[0110] Example 19: The method according to Example 17 or 18 may further include positioning a first transparent component at a first distance from a single near-eye display screen and positioning a second transparent component at a second distance from a single near-eye display screen, wherein the second distance is less than the first distance.

[0111] Example 20: An artificial reality device may include: a first eyecup including a first lens; a second eyecup including a second lens, wherein the first and second eyecups are movable relative to each other to adjust according to the interpupillary distance of a user's eyes; a single near-eye display screen configured to display an image to a user through the first and second eyecups; at least one processor configured to render an image for display on the single near-eye display screen; and a closure located above the single near-eye display screen, the closure including a first transparent component located between the first lens and the single near-eye display screen and a second transparent component located between the second lens and the single near-eye display screen, wherein the first and second transparent components are stationary relative to the single near-eye display screen.

[0112] Example 21: A method for adjusting the interpupillary distance of a head-mounted display assembly, which may include: moving a first eyecup over a first transparent component located above a single near-eye display screen; and moving a second eyecup over a second transparent component located above a single near-eye display screen, wherein the single near-eye display screen, the first transparent component, and the second transparent component define an hermetically sealed closure.

[0113] The order of process parameters and steps described and / or illustrated herein is given by way of example only and may be varied as needed. For example, while steps illustrated and / or described herein may be shown or discussed in a specific order, these steps do not necessarily need to be performed in the illustrated or discussed order. The various exemplary methods described and / or illustrated herein may also omit one or more steps described or illustrated herein, or include additional steps besides those disclosed.

[0114] The foregoing description has been provided to enable others skilled in the art to best utilize the various aspects of the exemplary embodiments disclosed herein. This illustrative description is not intended to be exhaustive or limiting to any precise form of disclosure. Many modifications and variations are possible without departing from the spirit and scope of this disclosure. The embodiments disclosed herein should be considered illustrative rather than restrictive in all respects. Reference should be made to the appended claims and their equivalents in determining the scope of this disclosure.

[0115] Unless otherwise stated, the terms “connected to” and “coupled to” (and their derivatives) as used in the specification and claims shall be interpreted as allowing direct and indirect (i.e., via other elements or components) connection between the two. Furthermore, the terms “a” or “an” as used in the specification and claims shall be interpreted as meaning “at least one of…”. Finally, for ease of use, the terms “including” and “having” (and their derivatives) as used in the specification and claims are interchangeable with the word “comprising” and have the same meaning as the word “comprising”.

Claims

1. A head-mounted display assembly, comprising: A first eyecup and a second eyecup are configured to position a first lens and a second lens respectively in front of the intended position of the user's eyes when the user wears the head-mounted display assembly, wherein the first eyecup and the second eyecup are movable relative to each other to adjust according to the user's interpupillary distance (IPD). A stop mechanism configured to hold the first eyecup and the second eyecup at at least two different distances from each other, the at least two different distances corresponding to at least two IPD settings of the first eyecup and the second eyecup; and An IPD indicator is configured to indicate the current IPD setting of the at least two IPD settings for the first eyecup and the second eyecup; The stopping mechanism includes: The first toothed strip extends inward from the first eyecup; The second toothed strip extends inward from the second eyecup; A pinion that engages with the first rack and the second rack; A stop base coupled to the pinion, the stop base including a plurality of grooves in one side thereof; and At least one stop extension is biased toward the stop base to be positioned within one of the plurality of grooves, thereby holding the pinion at one of the at least two IPD settings.

2. The head-mounted display assembly of claim 1, further comprising a track along which the first and second eyecups are movable to adjust the user's IPD, wherein: The first eyecup includes a first IPD adjustment bracket that engages with the track; and The second eyecup includes a second IPD adjustment bracket that engages with the track.

3. The head-mounted display assembly according to claim 2, wherein, The first IPD adjustment bracket includes at least one first sliding element that engages with the track, and the second IPD adjustment bracket includes at least one second sliding element that engages with the track.

4. The head-mounted display assembly according to claim 3, wherein, The at least one first sliding element comprises two first sliding elements, and the at least one second sliding element comprises two second sliding elements.

5. The head-mounted display assembly according to claim 2, wherein, The track includes at least one of a rod or a slide.

6. The head-mounted display assembly of claim 1, further comprising an IPD input mechanism for controlling the movement of the first eyecup and the second eyecup relative to each other.

7. The head-mounted display assembly of claim 6, wherein, The IPD input mechanism includes an actuator configured to move the first eyecup and the second eyecup relative to each other.

8. The head-mounted display assembly according to claim 1, wherein, The pinion is located between the first rack and the second rack.

9. The head-mounted display assembly according to claim 1, wherein, The IPD indicator includes a hole and a visual indication of the IPD setting, the visual indication being aligned with the hole and visible through the hole.

10. The head-mounted display assembly of claim 1, wherein, The at least one stop extension includes two stop extensions.

11. The head-mounted display assembly of claim 1, wherein, The at least one stop extension includes a ball that is spring-biased toward the stop base.

12. The head-mounted display assembly of claim 1, further comprising an IPD position sensor configured to sense the current IPD settings of the first eyecup and the second eyecup.

13. The head-mounted display assembly of claim 12, wherein, The IPD position sensor includes a probe configured to sense a magnetic field and a permanent magnet coupled to at least one of the first eyecup or the second eyecup.

14. The head-mounted display assembly of claim 1, wherein, The first eyecup and the second eyecup are capable of moving relative to each other at a distance of up to 10 millimeters.

15. The head-mounted display assembly of claim 9, wherein, The visual indicators for the IPD settings include at least one of numbers or letters.

16. An artificial reality device, comprising: The first eyecup includes a first lens; The second eyecup includes a second lens, wherein the first eyecup and the second eyecup are movable relative to each other to adjust according to the interpupillary distance (IPD) of the user's eye; A near-eye display screen configured to display an image to the user through the first and second eyecups; At least one processor is configured to render an image for display on the near-eye display screen; A stop mechanism configured to hold the first eyecup and the second eyecup at at least two different distances from each other, the at least two different distances corresponding to at least two IPD settings of the first eyecup and the second eyecup; and An IPD indicator is configured to indicate the current IPD setting in at least two IPD settings for the first eyecup and the second eyecup; The stopping mechanism includes: The first toothed strip extends inward from the first eyecup; The second toothed strip extends inward from the second eyecup; A pinion that engages with the first rack and the second rack; A stop base coupled to the pinion, the stop base including a plurality of grooves in one side thereof; and At least one stop extension is biased toward the stop base to be positioned within one of the plurality of grooves, thereby holding the pinion at one of the at least two IPD settings.

17. The artificial reality device according to claim 16, wherein, The IPD indicator includes a hole and a number corresponding to the at least two IPD settings, wherein the hole is aligned with one of the numbers at each of the at least two IPD settings.

18. A method of manufacturing a head-mounted display assembly, the method comprising: The first eyecup supporting the first lens is slidably positioned to the frame; The second eyecup supporting the second lens is slidably positioned to the frame such that the first eyecup and the second eyecup are positioned relative to each other and movable relative to the frame to adjust according to the interpupillary distance (IPD) of the user's eyes when the user wears the head-mounted display assembly; The first and second eyecups are maintained in one of the multiple IPD settings by a stop mechanism; and Align the IPD setting visual indicator with the hole so that the IPD setting visual indicator can be viewed through the hole; The stopping mechanism includes: The first toothed strip extends inward from the first eyecup; The second toothed strip extends inward from the second eyecup; A pinion that engages with the first rack and the second rack; A stop base coupled to the pinion, the stop base including a plurality of grooves in one side thereof; and At least one stop extension is biased toward the stop base to be positioned within one of the plurality of grooves, thereby holding the pinion at one of the plurality of IPD settings.

19. The method according to claim 18, wherein, Aligning the IPD visual indicator with the hole includes aligning the digital visual indicator with the hole so that the digital visual indicator can be viewed through the hole.

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