Adjustable Head Mounted Display

Abstract

A head-mounted display includes a front portion, a rear portion, a first actuator, a second actuator, a first adjustable member extending between the front and rear portions and operably engaged with the first actuator, and a second adjustable member extending between the front and rear portions and operably engaged with the second actuator. The first and second adjustable members may be adjustable in length via the second actuator to change the gap distance between the front and rear portions. In some embodiments, the head-mounted display may include a wire routing assembly for routing wires between the front and rear portions of the head-mounted display. Additionally, in some embodiments, the head-mounted display may include a harness for engaging a user.

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application is a PCT application claiming priority to U.S. Utility Patent Application No. 17 / 021,822, filed September 15, 2020, which is a non-provisional application claiming priority to U.S. Provisional Patent Application No. 62 / 901,471, filed September 17, 2019, both entitled "Adjustable Head-Mounted Display," and both of which are incorporated by reference herein in their entireties. [Background technology]

[0002] Head-mounted displays are used in a variety of fields, including engineering, medicine, the military, and video games. In some cases, head-mounted displays may present information or images to a user as part of a virtual reality or augmented reality environment. As an example, while playing a video game, a user may wear a head-mounted display to immerse the user in the virtual environment.

[0003] Conventional head-mounted displays have insufficient or no adjustment at all to accommodate different head sizes and / or to adjust the tightness of the head-mounted display to the user. As a result, some users may find it difficult to wear the head-mounted display comfortably. For example, if the fit is too snug, the head-mounted display may be difficult to wear. Alternatively, if the fit is too loose, the head-mounted display may not be properly secured to the user. Therefore, conventional head-mounted displays may not provide an appropriate mechanism for adapting to different users, and may not allow for quick and convenient adjustment and / or proper and comfortable wearing of the head-mounted display. [Brief explanation of the drawings]

[0004] The detailed description will now be described with reference to the accompanying drawings, in which the leftmost digit(s) of a reference number identifies the figure in which the reference number first appears. The same or similar reference numbers in different figures indicate similar or identical items.

[0005] [Figure 1] FIG. 1 illustrates a front perspective view of a user wearing an exemplary head-mounted display, according to one embodiment of the present disclosure. [Figure 2] 2 illustrates a rear perspective view of a user wearing the exemplary head-mounted display of FIG. 1, according to one embodiment of the present disclosure. [Figure 3] 2 illustrates a top view of the exemplary head-mounted display of FIG. 1, according to one embodiment of the present disclosure. [Figure 4] 2 illustrates a bottom view of the exemplary head-mounted display of FIG. 1, according to one embodiment of the present disclosure. [Figure 5] 2 illustrates a side view of the exemplary head-mounted display of FIG. 1, according to one embodiment of the present disclosure. [Figure 6] 2 illustrates a front view of the exemplary head-mounted display of FIG. 1, according to one embodiment of the present disclosure. [Figure 7] 2 illustrates a rear view of the exemplary head-mounted display of FIG. 1, according to one embodiment of the present disclosure. [Figure 8A] 2 illustrates a side view of an exemplary actuator of the exemplary head-mounted display of FIG. 1, according to one embodiment of the present disclosure. [Figure 8B] 8B illustrates a top view of the exemplary actuator of FIG. 8A, according to one embodiment of the present disclosure. [Figure 9] FIG. 1 illustrates a front perspective view of an exemplary wire routing assembly usable with a head-mounted display, according to one embodiment of the present disclosure. [Figure 10] 10 illustrates a front view of the exemplary wire routing assembly of FIG. 9 according to one embodiment of the present disclosure. [Figure 11A] 10 illustrates a first end view of the exemplary wire routing assembly of FIG. 9 according to one embodiment of the present disclosure. [Figure 11B] 10 illustrates a second end view of the exemplary wire routing assembly of FIG. 9 according to one embodiment of the present disclosure. [Figure 12A] 10 illustrates a front perspective view of the exemplary wire routing assembly of FIG. 9 showing one or more features as semi-transparent for illustrating exemplary components of the exemplary wire routing assembly, according to one embodiment of the present disclosure. [Figure 12B] 10 illustrates a front perspective view of the exemplary wire routing assembly of FIG. 9 showing one or more features as semi-transparent for illustrating exemplary components of the exemplary wire routing assembly, according to one embodiment of the present disclosure. [Figure 13] 10 illustrates a side view of the exemplary wire routing assembly of FIG. 9 according to one embodiment of the present disclosure. [Figure 14] 10 illustrates a perspective view of an exemplary head-mounted display showing that the wire routing assembly of FIG. 9 can be used with the exemplary head-mounted display, according to one embodiment of the present disclosure. [Figure 15] 15 illustrates a top view of the exemplary head-mounted display of FIG. 14, according to one embodiment of the present disclosure. [Figure 16] FIG. 1 illustrates a side view of an exemplary head-mounted display showing a support configured to engage a user, according to one embodiment of the present disclosure. [Figure 17] 17 illustrates a partial top perspective view of the exemplary head-mounted display of FIG. 16 according to one embodiment of the present disclosure. [Figure 18] 17 illustrates a top view of the exemplary head-mounted display of FIG. 16 according to one embodiment of the present disclosure. [Figure 19] 17 illustrates a user wearing the exemplary head-mounted display of FIG. 16 showing a support engaging with the user, according to one embodiment of the present disclosure. [Figure 20] FIG. 1 illustrates a side view of an exemplary head-mounted display showing a support configured to engage a user, according to one embodiment of the present disclosure. [Figure 21A] FIG. 1 illustrates a front perspective view of an exemplary wire routing assembly usable with a head-mounted display, according to one embodiment of the present disclosure. [Figure 21B] 21B illustrates a front perspective view of the exemplary wire routing assembly of FIG. 21A showing one or more features as semi-transparent for illustrating components of the exemplary wire routing assembly, according to one embodiment of the present disclosure. [Figure 22] 21B illustrates a side view of an exemplary head-mounted display showing that the wire routing assembly of FIG. 21A can be used with the exemplary head-mounted display, according to one embodiment of the present disclosure. [Figure 23] FIG. 1 illustrates a perspective view of an exemplary head-mounted display, according to one embodiment of the present disclosure. [Figure 24] 24 illustrates a top view of the exemplary head-mounted display of FIG. 23 according to one embodiment of the present disclosure. [Figure 25] 24 illustrates a side view of the exemplary head-mounted display of FIG. 23 according to one embodiment of the present disclosure. [Figure 26] 24 illustrates an exemplary sleeve that can be used with the exemplary head-mounted display of FIG. 23, according to one embodiment of the present disclosure. [Figure 27] 27 illustrates an exemplary member operable with the exemplary sleeve of FIG. 26, according to one embodiment of the present disclosure. [Figure 28] 24 illustrates an exemplary member that can be used with the exemplary head-mounted display of FIG. 23, according to one embodiment of the present disclosure. [Figure 29] FIG. 1 illustrates a front perspective view of an exemplary head-mounted display, according to one embodiment of the present disclosure. [Figure 30] 30 illustrates a rear perspective view of the head-mounted display of FIG. 29 according to one embodiment of the present disclosure. [Figure 31] 30 illustrates a front view of the head-mounted display of FIG. 29 according to one embodiment of the present disclosure. [Figure 32]30 illustrates a rear view of the exemplary head-mounted display of FIG. 29 according to one embodiment of the present disclosure. [Figure 33] 30 illustrates a top view of the head-mounted display of FIG. 29 according to one embodiment of the present disclosure. [Figure 34] 30 illustrates a top view of the head-mounted display of FIG. 29 according to one embodiment of the present disclosure. [Figure 35] 30 illustrates a first side view of the head-mounted display of FIG. 29 according to one embodiment of the present disclosure. [Figure 36] 30 illustrates a second side view of the head-mounted display of FIG. 29 according to one embodiment of the present disclosure. [Figure 37] 30 illustrates exemplary components and a flexible printed circuit of the head mounted display of FIG. 29 according to one embodiment of the present disclosure. [Figure 38] 34 is a cross-sectional view of the head-mounted display of FIG. 29 taken along line AA of FIG. 34 showing a member and a flexible printed circuit according to one embodiment of the present disclosure. [Figure 39] FIG. 1 illustrates a perspective view of an exemplary head-mounted display, according to one embodiment of the present disclosure. [Figure 40] 40 illustrates a top view of the head-mounted display of FIG. 39 according to one embodiment of the present disclosure. [Figure 41] 1 illustrates exemplary computing components of an exemplary head-mounted display, according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0006] As described above, head-mounted displays (HMDs) have a wide range of applications and may sometimes need to accommodate various head sizes among different users. However, conventional HMDs offer little ability to adjust to suit different users and / or incrementally fasten and loosen the HMD to the user. For example, conventional HMDs may secure the HMD to the user's head using elastic straps or hook-and-loop straps. However, such mechanisms are rather crude and rudimentary, and users may find it difficult to adjust the HMD on the fly and / or in small increments. Thus, the HMD may not securely attach to the user and / or the user may spend time readjusting or refastening the HMD. However, such changes may impair the usability of the HMD and / or adversely affect the user experience. Furthermore, an inability to properly secure or attach the HMD may affect the quality of images presented in, for example, virtual reality (VR) and / or augmented reality (AR) environments. Conventional HMDs may also include wires, cables, or other cords that can increase the entanglement or bulkiness of the HMD, and therefore may be uncomfortable and / or inconvenient to wear for extended periods of time.

[0007] This application describes, in part, an HMD that fits or attaches closely, comfortably, and securely around a user's head. In some cases, an HMD according to this application can take many forms, including helmets, visors, goggles, masks, glasses, and other head or eyewear worn on a user's head. The HMD may include a front portion having a face-mounted display adjacent to the user's eyes that outputs images (or other content) for viewing by the user. In some cases, the images may be output by an application or computing device (e.g., a video game console) communicatively coupled to the HMD. Additionally, in some cases, the user may operate a handheld controller in conjunction with the HMD to further immerse the user in the VR or AR environment.

[0008] The rear of the HMD may include a basket, cradle, support, frame, or harness configured to secure around the back of the user's head. In some cases, the harness may engage under and / or with the occipital lobe, thereby clutching the back of the user's head and securing the HMD to the user. In some cases, the harness or a portion of the harness may be spring-loaded or tension-loaded to maintain constant pressure on the back of the head. Such pressure may help secure the HMD to the user through an ergonomic fit to the head. Additionally or alternatively, the harness may include one or more ball joints to conform to the user's head. For example, the harness may couple to portions of the HMD via ball joints (e.g., the rear housing) to articulate around one or more axes, positioning the harness comfortably on the head. Nevertheless, in some cases, the harness may include different material thicknesses and / or voids to provide flexure around one or more axes. This multi-axis flexure may allow the harness to evenly distribute force across the back of the head to secure the HMD to the user.

[0009] In some cases, the harness may include a portion that engages with the user's head above the occipital lobe, extending circumferentially and / or radially around at least a portion of the user's head. In some cases, the HMD may also include a harness that engages with the top of the user's head. Thus, in some cases, the HMD may include multiple portions designed to engage with different or respective portions of the user's head. For example, a first portion of the HMD may engage with the user's head below the occipital lobe, a second portion of the HMD may engage with the user's head above the occipital lobe, and / or a third portion may engage along the top of the user's head. The portions of the HMD may cooperate to secure and / or attach the HMD to the user's head.

[0010] The HMD may adjust to accommodate varying head sizes among users and / or incrementally tighten or loosen the HMD on a user. For example, the HMD may include a chain, cord, section, strap, band, or other member operably connecting the front of the HMD and the rear of the HMD. The member may engage with an actuatable mechanism, fastener, fixture, or actuator to secure and release the HMD from the user. As an example, the member may include an attachment mechanism or adjustable element, such as teeth, connectors, slits, tabs, notches, tabs, and / or other slots, that extends along a portion of the member's length and engages with an actuator. The actuator may include a mechanism configured to engage with a slot at different portions along the member's length to tighten or loosen the HMD from the user's head. For example, the actuator may include an attachment mechanism or adjustable element, such as a dial, lever, wheel, slide, buckle, arm, and / or knob.

[0011] In some cases, the engagement between the member and the actuator may resemble a ratchet mechanism, a slide and lock mechanism, a friction mechanism, or the like. Through this engagement and through actuation of the actuator (e.g., pulling, twisting, rotating, etc.), the length of the member may be adjusted. For example, a user may actuate the actuator to adjust the length of the member to position the HMD relative to the user's eyes and / or increase and decrease the fit of the HMD on the user. The actuator may increase or decrease the intervening distance or gap distance between the front of the HMD and the rear of the HMD. Thus, the user may be provided with the option to adjust the distance between the front and rear of the HMD to allow the user to incrementally tighten the HMD to a desired position or fit. In some cases, the actuator may adjust the member below a maximum extension and decrease it above a minimum extension.

[0012] As an example, the actuator may include a rotatable knob with a gear that engages with a slot disposed along a portion of the member's length. Biasing (e.g., rotating) the actuator in a first direction causes the member to retract, thereby shortening its length and tightening the HMD around the user. When tightened, the front and rear of the HMD may extend or transition inward, together, or toward each other, exerting pressure on the user's head to hold the HMD in place. Biasing (e.g., rotating) the actuator in a second, potentially opposite, direction causes the members to extend or move outward or away from each other, thereby increasing their length and loosening the HMD from the user. Thus, the member and actuator may be operably coupled, interact, interconnected, or otherwise engaged to secure and / or attach the HMD to the user. The actuator may also allow the user to conveniently tighten and loosen the HMD on the fly and / or incrementally tighten and loosen the HMD.

[0013] In some cases, an HMD according to the present application may include multiple members for securing and / or attaching the HMD to a user, as well as multiple actuators operably engaging the respective members. For example, an HMD may include one or more side members extending on opposing sides of the HMD between the front of the HMD and the rear of the HMD. A first end of the one or more side members may be hingedly, rotatably, or pivotally coupled to a display worn on the user's face, while a second end of the one or more side members may extend toward the rear of the HMD housing and engage with one or more rear actuators. The one or more side members may be engageable with one or more rear actuators at different positions along the length of the one or more side members, allowing the length to be increased or decreased, thereby loosening or tightening the HMD from the user.

[0014] Additionally or alternatively, the HMD may include one or more top members extending over the top of the HMD between the front of the HMD and the rear of the HMD. A first end of the one or more top members may be coupled to the top of the display, and a second end of the one or more top members may extend toward the rear of the HMD and engage with one or more top actuators. The one or more top members may be engageable with the one or more top actuators at different positions along the length of the one or more top members, allowing the length to be increased or decreased, thereby loosening or tightening the HMD from or onto the user, respectively.

[0015] Thus, when the HMD is worn by a user, one or more side members may extend adjacent to the user's ears and along opposing sides of the user's head, while one or more top members may extend along the top of the user's head. In this sense, the one or more side members and the one or more top members, when fastened, may be utilized to secure the HMD to the user's head in multiple directions, and the HMD may engage or attach to respective parts of the user. Thus, the one or more side members and the one or more top members may help to hold the HMD in a desired position. However, the HMD may include other members designed to engage different parts of the user other than those discussed herein.

[0016] The actuators may be conveniently located on the HMD and may be conveniently actuated by a user to loosen or tighten the HMD. For example, an actuator for biasing one or more side members may be located at the rear of the HMD, and an actuator for biasing one or more top members may be located at the top of the HMD. In some cases, the one or more actuators may be centrally aligned on the HMD. However, in some cases, the top actuator and / or the rear actuator may be located near each other, such as at the rear of the HMD. Such an arrangement may position the top actuator and the rear actuator near each other for the convenience of the user.

[0017] In some cases, the HMD may include one or more wire paths or assemblies that channel wires between the front and rear of the HMD. For example, the rear of the HMD may include a compartment with a wireless transceiver, battery, microphone, input / output devices, and / or other components to enable operation of the HMD. In some cases, the front may include a display and / or antenna. One or more cables may communicatively couple the front and rear of the HMD to provide power, information signals, or images output on the display. In some cases, wires, optical fibers, and / or cables may pass through one or more wire paths to mitigate potential problems of wire tangling and / or detracting from the aesthetic appearance of the HMD. For example, the wire path may include a housing and a slide operably engaged within the housing. The wire path may transition or move between an extended state and a retracted state. To extend at various lengths, the wire path may include channels that route the wires between the front and rear of the HMD. That is, the wires may include sufficient slack (or service loops) to allow the slide to extend at various lengths. As an example, a wire may be disposed within or coupled to a portion of a wire path, such as a slide, to interchangeably couple an antenna located at the front of the HMD with an antenna located at the rear of the device and coupled to a portion on the slide and / or housing and run through the wire path. In some cases, the slide may traverse within the housing and extend telescopically, extending from and retracting into the housing as the user tightens and loosens the HMD.

[0018] In some cases, the wire pathways and one or more upper members may be integrally formed. For example, the upper member may include embedded wires for communicatively coupling the front and rear of the HMD. The upper member may extend at various lengths from the sleeve via actuation of one or more actuators. Additionally, the upper member may retract into the sleeve via actuation of one or more actuators. Thus, integrally forming the upper member and wire pathways into a single component may resemble, for example, a compact housing for connecting and communicatively coupling the front and rear of the HMD.

[0019] Additionally or alternatively, in some cases, the HMD may include a flexible printed circuit (FPC) extending from the front to the rear of the HMD and communicatively coupling one or more components of the HMD. In some cases, the FPC may extend through a sleeve and / or jacket, and in some cases, the top member and the FPC may be joined or adjacent. In some cases, the FPC may include a service loop or slack that allows the FPC to extend or retract. In some cases, the service loop may be located inside the sleeve. For example, the FPC can enter the sleeve, traverse or loop within the sleeve, and exit the sleeve at the opposite end.

[0020] The present disclosure provides a general understanding of the principles of structure, function, manufacture, and use of the systems and methods disclosed herein. One or more examples of the present disclosure are illustrated in the accompanying drawings. Those skilled in the art will understand that the systems and methods specifically described herein and illustrated in the accompanying drawings are non-limiting embodiments. Features illustrated or described in connection with one embodiment, including between systems and methods, can be combined with features of other embodiments. Such modifications and variations are intended to be within the scope of the appended claims.

[0021] FIG. 1 illustrates an exemplary head-mounted display (HMD) 100 positioned on or around the head of a user 102. The HMD 100 may include a front portion 104 and a rear portion 106 that, when fastened, secures to the head of the user 102. The front portion 104 may include a display 108 positioned in front of or above the eyes of the user 102 to render images output by an application (e.g., a video game). Generally, the display 108 may correspond to and / or be associated with a housing in which one or more displays are housed. In some cases, the application may run on a computing device (e.g., a personal computer (PC), game console, etc.) associated with and / or communicatively coupled to the HMD 100. The display 108 may output a series of images (frames) that are viewed by the user 102 through optics within the HMD 100, allowing the user to perceive the images as if immersed in a VR or AR environment.

[0022] The rear portion 106 of the HMD 100 may include components for performing the functions of the HMD 100, such as logic, hardware, memory, a processor, a battery, etc. Additionally, or alternatively, in some cases, some or all of the components may be located in the front portion 104 of the HMD 100. To communicatively couple the front portion 104 and the rear portion 106 of the HMD 100, the HMD 100 may include one or more wires, cords, and / or cables 110 extending between the front portion 104 and the rear portion 106. In some cases, the cables 110 may be routed along the sides of the HMD 100. The cables 110 may provide signal processing, power, and other control between the front portion 104 and the rear portion 106 of the HMD 100. For example, the rear portion 106 of the HMD 100 may include a battery, and power may be routed to the display 108 via the cables 110. However, the cables 110 may be routed through other portions of the HMD 100.

[0023] The HMD 100 includes supports, collars, frames, mounts, and / or other structures that attach, fasten, attach, stabilize, and / or otherwise secure the HMD 100 to the user 102. In some cases, the structures of the HMD 100 may position the display 108 relative to the eyes of the user 102. In some cases, the structures may cooperate with each other to support the weight of the HMD 100 and provide a balanced and comfortable experience when the HMD 100 is worn by the user 102. In some cases, the structures may also include curved surfaces that generally conform to the contours or ergonomics of the user's 102's head (or face).

[0024] In some cases, the HMD 100 may include multiple members and actuators that engage with each other to adjust for various head sizes and / or to tighten and loosen the HMD 100 to and from the user 102. The members and / or actuators may adjust the structure of the HMD 100 to accommodate different users and / or user preferences. For example, the HMD 100 may include a top member 112 that runs along or across the top (crown) of the user's 102's head between the front 104 and rear 106 of the HMD 100. In some cases, the top member 112 may rest on or contact the top of the user's 102's head. In some cases, the top member 112 may include a strap, band, strip, belt, cord, or harness configured to operably change length (or exposed length) to tighten and loosen the HMD 100 to and from the user 102. In some cases, the upper member 112 may be made from materials such as plastic, metal, rubber, composites, and / or any combination thereof.

[0025] The top member 112 may include a first end 114 coupled to the display 108 or to the front 104 of the HMD 100 and a second end extending toward the rear 106 of the HMD 100 (the Z direction). As shown in FIG. 1 , the second end of the top member 112 may extend within a sleeve 116 that extends in a direction from the rear 106 of the HMD 100 toward the front 104 of the HMD 100 (the Z direction). The sleeve 116 may be sized and configured to receive or accommodate the top member 112, a portion of the top member 112, and / or the second end of the top member 112.

[0026] The top member 112 may include teeth, tabs, hooks, tabs, adjustable elements or mechanisms, or other slots 118 disposed longitudinally along the length (Z direction) or a portion of the length of the top member 112 between the first end 114 and the second end. Within the sleeve 116, the slots 118 may operably couple or otherwise engage with an upper actuator 120. In doing so, the top member 112 may operably couple the front 104 of the HMD 100 to the rear 106 of the HMD 100, or may be disposed between the front 104 and rear 106 of the HMD 100. That is, the top member 112 may be coupled to the front 104 at the first end 114 via the display 108, or may be coupled to the rear 106 of the HMD 100 via the second end of the top member 112, which is engaged with the top member 112 and / or the upper actuator 120. In some cases, the upper actuator 120 may resemble a dial, lever, wheel, slide, buckle, and / or knob that is operable (e.g., pivoted, twisted, rotated, pulled, etc.) to adjust the length of the upper member 112.

[0027] The upper actuator 120 may be attached to, mounted on, or otherwise coupled to the sleeve 116. A first portion of the upper actuator 120 may extend through the sleeve 116 to be grasped by the user 102, while a second portion of the upper actuator 120 may be disposed inside the sleeve 116 and operably engage with the slot 118 of the upper member 112. For example, the upper actuator 120 may include teeth, gears (e.g., spurs), pinions, tabs, or sprockets that engage with the slot 118. In some cases, the engagement between the upper member 112 and the upper actuator 120 may resemble a ratchet mechanism, a slide and lock mechanism, a female / male connector, a friction mechanism, or the like. Thus, the upper actuator 120 may be mateable with the upper member 112 at different positions along its length to allow the length of the upper member 112 extending from the sleeve 116 to be increased or decreased.

[0028] As an example, the upper actuator 120 may include a rotatable knob having a sprocket, and the upper member 112 may include a slot 118 sized and configured to engage the sprocket, or vice versa. By rotating the upper actuator 120 in a first direction (e.g., clockwise and / or about the Y axis), the front portion 104 of the HMD 100 and the rear portion 106 of the HMD 100 may move inward and closer to each other (Z direction), thereby decreasing the gap distance disposed between the front portion 104 and the rear portion 106. The upper actuator 120 may retract the upper member 112 into and / or within the sleeve 116 (Z direction) such that the HMD 100 may pull the front portion 104 of the HMD 100 and the rear portion 106 of the HMD 100 inward, exerting a greater force or tension on the user 102. The pressure and / or force may clamp and / or secure the HMD 100 to the user 102. Additionally, when tightened, the upper actuator 120 may lock and / or maintain engagement with the slot 118 to hold the HMD 100 in place, prevent the upper member 112 from backing out of the sleeve 116, and position the HMD 100 on the user 102. Rotating the knob in a second, opposite direction (e.g., counterclockwise and / or about the Y axis) may cause the front portion 104 of the HMD 100 and the rear portion 106 of the HMD 100 to move outward and away from each other (e.g., in the Z direction), thereby increasing the gap distance disposed between the front portion 104 and the rear portion 106. In doing so, the front portion 104 of the HMD 100 and the rear portion 106 of the HMD 100 may extend or be allowed to move apart from one another to apply less force or tension to the user 102 to loosen the HMD 100. In this sense, when loosened, the upper member 112 may extend from the sleeve 116 (in the Z direction) so that the front 104 and rear 106 of the HMD 100 are permitted to move apart, allowing the user 102 to remove the HMD 100 and / or reduce the force applied by the HMD 100.

[0029] In some cases, actuation of the upper actuator 120 can vertically align the display 108 with respect to the eyes of the user 102. For example, extending and retracting the upper member 112 can provide slack or uptake slack for adjusting the vertical position of the display 108 on the face of the user 102.

[0030] 1 depicts the sleeve 116 as being a fixed length, the sleeve 116 may be longer or shorter than shown. For example, the sleeve 116 may be long such that the slot 118 is enclosed or disposed within the sleeve 116 between its fully extended and fully retracted states. That is, the slot 118 may be internal to the sleeve 116 such that the slot 118 is not visible from outside the HMD 100. Disposing the slot 118 within the sleeve 116 may prevent hair from becoming entangled within the slot 118 and / or the upper actuator 120. Thus, the upper member 112 may extend and retract within the sleeve 116, and the slot 118 may be disposed within the sleeve 116, at various lengths.

[0031] Additionally, the HMD 100 may include one or more adjustable members that traverse laterally (in the Z direction) or along the sides of the user's 102's head between the front 104 and rear 106 of the HMD 100. For example, the HMD 100 may include a first side member 122 and a second side member 124 that extend along the sides of the user's 102's head from the front 104 of the HMD 100 toward the rear 106 of the HMD 100. In some cases, the first side member 122 may be located on a first side (e.g., the left) of the HMD 100, while the second side member 124 may be located on a second side (e.g., the right) of the HMD 100, spaced apart in the X direction. As shown in FIG. 1 , in some cases, the first side member 122 and the second side member 124 may be located on opposite sides of the HMD 100 or coupled to opposite sides of the display 108.

[0032] In some cases, the first side member 122 and the second side member 124 may include or correspond to straps, bands, strips, belts, cords, or harnesses that vary in length to fasten and loosen the HMD 100 to and from the user 102. For example, the first side member 122 may include a first end 126 coupled to the display 108 or to the front 104 of the HMD 100 and a second end extending laterally toward the rear 106 of the HMD 100 (in the Z direction). In some cases, the first side member 122 and / or the second end of the first side member 122 may extend or move within a compartment or housing 128 located at the rear 106 of the HMD 100. Similarly, the second side member 124 may include a first end that couples to the display 108 or the front 104 of the HMD 100 and a second end that extends into the housing 128 toward the rear 106 of the HMD 100 (Z direction).

[0033] In some cases, first end 126 of first side member 122 and first end of second side member 124 can be pivotally, hingedly, rotatably, or pivotally attached or otherwise coupled to display 108. Pivotally coupling to display 108 may allow first side member 122 and second side member 124 to manipulate, adapt, and accommodate different head sizes, or allow angular positioning of display 108 on user 102.

[0034] The housing 128 may be sized and configured to receive the first side member 122 (or the second end of the first side member 122) and the second side member 124 (or the second end of the second side member 124). In some cases, the first side member 122 and the second side member 124 may extend telescopically into the housing 128 of the HMD 100, allowing the first side member 122 and the second side member 124 to extend from and retract into the housing 128. As discussed herein, the first side member 122 and / or the second side member 124 may include teeth, tabs, hooks, adjustable attachment mechanisms, and / or other slots disposed along a length or a portion of the length of the first side member 122 and the second side member 124. The slots in the first side member 122 and / or the slots in the second side member 124 may operably couple or otherwise engage with rear actuators located at the rear 106 of the HMD 100. Thus, the first side member 122 and the second side member 124 may couple the front 104 of the HMD 100 and the rear 106 of the HMD 100, or in other words, may be disposed between the front 104 and the rear 106 of the HMD 100. In some cases, the first side member 122 and / or the second side member 124 may engage with rear actuators within the housing 128.

[0035] The rear actuators may resemble dials, levers, wheels, slides, buckles, and / or knobs that can be actuated (e.g., turned, twisted, rotated, pulled, etc.). The rear actuators may include teeth, gears (e.g., spurs), pinions, or sprockets that engage with slots in the first and second side members 122, 124. In some cases, the engagement between the first and second side members 122, 124 and the rear actuators may resemble a ratchet mechanism, a slide and lock mechanism, a female / male connector, a friction mechanism, etc. Thus, the rear actuators may be mateable with the first and second side members 122, 124 at different positions along the lengths of the first and second side members 122, 124, respectively, allowing the lengths of the first and second side members 122, 124 to be adjusted via actuation of the rear actuators.

[0036] As an example, the rear actuator may include a rotatable knob with a sprocket, and the first and second side members 122, 124 may include slots (similar to slots 118) sized and configured to engage with the sprocket. By rotating the rear actuator in a first direction (e.g., clockwise and / or about the Z axis), the front 104 of the HMD 100 and the rear 106 of the HMD 100 can move inward and closer to each other (in the Z direction). When actuated in the first direction, the rear actuator may retract the first and second side members 122, 124 toward or within the housing 128 or toward the rear 106 of the HMD 100. Retracting the first and second side members 122, 124 may cause the HMD 100 to exert a greater force or tension on the user 102 to tighten the HMD 100. When tightened, the rear actuator may lock and / or maintain engagement with the slots in the first and second side members 122, 124 to hold the HMD 100 in place and position the HMD 100 on the user 102. Rotating the knob in a second, opposite direction (e.g., counterclockwise and / or about the Z axis) may cause the front 104 of the HMD 100 and the rear 106 of the HMD 100 to move outward and away from each other (e.g., in the Z direction). Doing so may reduce the force applied against the user 102 and the HMD 100 may loosen from the user 102. Upon loosening, the first and second side members 122, 124 may extend from the housing 128, thereby pushing the front 104 and rear 106 of the HMD 100 apart.

[0037] Using the top actuator 120 and the rear actuator, the user 102 can position or otherwise attach the HMD 100 according to the user's preferences. For example, the user 102 can adjust the top member 112, the first side member 122, and / or the second side member 124 to secure the HMD 100 to the user 102 in multiple directions, providing the ability to accommodate different feel and positioning of the HMD 100 on the user 102.

[0038] The HMD 100 may include loudspeakers for providing sound to the user 102. For example, the HMD 100 may include a first loudspeaker 130 located adjacent the left ear of the user 102 and a second loudspeaker 132 located adjacent the right ear of the user 102. As shown in FIG. 1 , the first loudspeaker 130 may be coupled to the first side member 122, and the second loudspeaker 132 may be coupled to the second side member 124. Thus, when the first side member 122 and the second side member 124 are extended and / or retracted, the first loudspeaker 130 and the second loudspeaker 132 may move correspondingly with the first side member 122 and the second side member 124. Additionally, in some cases, the first loudspeaker 130 and / or the second loudspeaker 132 may be pivotally coupled to the first side member 122 and the second side member 124, respectively, to position the first loudspeaker 130 and the second loudspeaker 132 adjacent the left and right ears, respectively, of the user 102 (Y axis).

[0039] As described above, a computing device such as a game console may be associated with the HMD 100 and may provide image data content to be presented on the display 108. Additionally or alternatively, the user 102 may manipulate a handheld controller associated with a content item displayed on the display 108. For example, the user 102 may grasp, hold, or grasp the handheld controller, and such grasping may be associated with an action within the VR environment, such as dropping an object, grabbing an object, etc. In some cases, the display 108 may present images thereon at a refresh rate based on receiving data from the handheld controller (e.g., proximity data indicative of the user's 102 grasp or hand position). The HMD 100 may include a network interface to communicatively couple the HMD 100 to a computing device and / or handheld controller. The HMD 100 may be communicatively coupled to a network in any manner, such as by a global or local wired or wireless connection (e.g., a local area network (LAN), an intranet, Wi-Fi, Bluetooth, ZigBee, Z-Wave, etc.). Thus, the network may facilitate communication between the computing device, the handheld controller, and / or the HMD 100. For example, the front portion 104 of the HMD 100 may include a first wireless interface or a first antenna 134, and the rear portion 106 of the HMD 100 may include a second wireless interface or a second antenna disposed within the housing 128. In some cases, the HMD 100 may transmit signals or data via the first antenna 134 or the second antenna depending on which antenna is closest to or facing the computing device (e.g., a game console).

[0040] The surface of the HMD 100 that contacts the user 102 may be padded and may be of sufficient area to comfortably distribute compressive forces. Additionally or alternatively, the portion of the HMD 100 that contacts the user 102 may be shaped and / or contoured to match the ergonomics of the head. For example, the first end 126 of the first side member 122 and the first end of the second side member 124 may be proximate to or potentially contact the face of the user 102, and the first side member 122 and / or the second side member 124 may include cushioning or other padding. However, other portions of the HMD 100 may also include cushioning or other padding to increase the comfort of the HMD 100.

[0041] FIG. 2 shows a rear perspective view of the HMD 100 being worn by the user 102. As discussed above with respect to FIG. 1 , the top member 112 may be operably coupled to the top actuator 120 to help secure the HMD 100 to the user 102. For example, the top member 112 may be positioned over or on the top (e.g., crown) of the HMD 100 or the user 102. A second end 200 of the top member 112 may extend into the sleeve 116 (in the Z direction). As shown in FIG. 2 , the slot 118 can engage with the top actuator 120 to tighten or loosen the HMD 100 to the user 102. That is, the top actuator 120 may be engageable at different positions on the top member 112 via engagement with the slot. Actuating the top actuator 120 may change the exposed length of the top member 112 outside the sleeve 116, thereby tightening or loosening the HMD 100 to the user 102. Additionally, as discussed above, while FIG. 2 shows slot 118 disposed externally of sleeve 116, in some cases, slot 118 may be configured and / or positioned on upper member 112 such that slot 118 is disposed internally of sleeve 116 between the fully extended and fully retracted states of upper member 112 from sleeve 116. Thus, hair may be prevented from becoming entangled with slot 118 and / or upper actuator. Additionally or alternatively, slot 118 may engage upper actuator 120 at a position closer to rear 106 of HMD 100. In doing so, slot 118 may remain within sleeve 116 between the fully retracted and fully extended states.

[0042] 2, the first side member 122 and the second side member 124 extend from the front 104 of the HMD 100 to the rear 106 of the HMD 100. The first side member 122 and the second side member 124 may be operably coupled to a rear actuator 202 to assist in securing the HMD 100 to the user 102.

[0043] The rear actuator 202 may be attached to, mounted on, or otherwise coupled to the housing 128. A first portion of the rear actuator 202 may extend outside the housing 128 to be grasped by the user 102, while a second portion of the rear actuator 202 may be disposed within or inside the housing 128 to operably engage the first and second side members 122, 124. For example, the second ends of the first and second side members 122, 124, respectively, may be routed through the housing 128 to operably engage the first and second side members 122, 124 with the rear actuator 202. As discussed above, the rear actuator 202 may include teeth, gears, pinions, or sprockets that engage slots in the first and second side members 122, 124, respectively. In doing so, the rear actuator 202 may be mateable with the first and second side members 122, 124 at different locations on or along the first and second side members 122, 124.

[0044] In some cases, the housing 128 may include side arms or other members into which the first side member 122 and / or the second side member 124 extend. For example, the housing 128 may include receptacles or channels for receiving the first side member 122 and / or the second side member 124. By way of example, the housing 128 may include a passageway, slot, or channel through which the first side member 122 and the second side member 124 (e.g., second ends) traverse. As the rear actuator 202 is actuated, the first side member 122 and the second side member 124 can extend into the housing 128 and retract out of the housing 128 to tighten and loosen the HMD 100 on the user 102.

[0045] To allow sleeve 116 to bend, pivot, or rotate, sleeve 116 may be pivotally or rotatably coupled to housing 128 via hinge 204. In some cases, hinge 204 may include a mechanical structure (i.e., a knuckle and pin) or may include other structures, such as a piece of fabric or material, that allow sleeve 116 to bend or rotate in the X, Y, and / or Z directions.

[0046] FIG. 2 also illustrates a second loudspeaker 132 coupled to the second side member 124 .

[0047] 3 shows a top view of the HMD 100. In some cases, the upper actuator 120 and the rear actuator 202 may be centered with respect to each other (Z-axis) and / or centered on the HMD 100.

[0048] The HMD 100 may include a rear harness 300 for clutching, grasping, or otherwise engaging the back of the user's 102's head. When the HMD 100 is worn by the user 102, the rear harness 300 may extend circumferentially or radially around at least a portion of the back of the user's 102's head (X direction). For example, the rear harness 300 may engage with the sides and / or back of the user's 102's head. In some cases, the rear harness 300 may include features, contours, and / or structures that correspond to the ergonomic shape of the user 102. The rear harness 300 may also be configured to flex at specific spots and / or positions to abut the user's 102's head and secure the HMD 100. In some cases, the rear harness 300 may include a first portion 302 designed to engage the user's 102's head above the occipital lobe and a second portion 304 designed to engage the user's 102's head below the occipital lobe. First portion 302 and / or second portion 304 may include cushioning or other materials to enhance the comfort of the user.

[0049] The first side member 122 and the second side member 124 are shown extending between the front 104 and rear 106 of the HMD 100. In some cases, the first side member 122 and / or the second side member 124 may include multiple components, portions, or sections. For example, the first side member 122 may include a first section 306 that hinge-like, rotatably, or pivotally couples the first side member 122 to the display 108. The second section 308 may couple to or otherwise extend from the first section 306 toward the rear 106 of the HMD 100 (in the Z direction). In some cases, the first section 306 may comprise a rigid section to provide structural support, and the second section 308 may comprise a flexible or semi-rigid section that curves toward the rear 106 of the HMD 100. As shown in FIG. 3 , the second section 308 can extend within, across, abut, or along the rear harness 300 toward the rear actuator 202. In some cases, the rear harness 300, such as the first portion 302, may include a channel, surface, or passageway for the first side member 122 (or an end thereof) to extend into and / or along. As noted above, the rear actuator 202 can engage with the first side member 122, such as a slot included on or in the second section 308 of the first side member 122, and the second section 308 may arc, bend, or otherwise curve through or along the rear harness 300 to engage with the rear actuator 202. In some cases, the first side member 122 may extend along or within both the first portion 302 and / or one or more of the housing 128.

[0050] Similarly, the second side member 124 may include a first section 310 that hinge-like, rotatably, or pivotally couples the second side member 124 to the display 108. The second section 312 may be coupled to or otherwise extend from the first section 310 toward the rear 106 of the HMD 100. In some cases, the first section 310 may comprise a rigid section to provide structural support, and the second section 312 may comprise a flexible or semi-rigid section that curves toward the rear 106 of the HMD 100. As shown in FIG. 3 , the second section 312 can extend within, across, abut, or along the rear harness 300 toward the rear actuator 202. Thus, in some cases, the rear harness 300, such as the first portion 302, may include a channel, surface, or passageway through which the second side member 124 (or an end thereof) extends. The rear actuator 202 can engage with the second side member 124, such as a slot included in the second section 312. The second section 312 can be arced, bent, or otherwise curved through or along the rear harness 300 and / or housing 128 to engage the rear actuator 202.

[0051] The top member 112 may also extend between the front 104 and rear 106 of the HMD 100. The HMD 100 may include an upper pad 314 that underlies the sleeve 116 and the top member 112 (in the Y direction). Additionally, the upper pad 314 may be sized to be larger than the width of the sleeve 116 and / or the top member 112 (in the X direction). The upper pad 314 may provide cushioning between the sleeve 116 and the user 102 and / or between the top member 112 and the user 102. The upper pad 314 may also prevent the user's 102's hair from becoming entangled with the slot 118 and / or the upper actuator 120.

[0052] The HMD 100 may include a face cushion 316 coupled to the display 108. The face cushion 316 may be optimized to match the ergonomics of the user 102 to wrap around the front of the user's 102 head and seal against the user's 102 face. When the HMD 100 is fastened to the user 102, the face cushion 316 may prevent or substantially prevent light from penetrating into the display 108. For example, the face cushion 316 may include a deformable material (e.g., foam) that conforms to the contours of the user 102. The face cushion 316 may also include a nasal recess, which may aid in the positioning or alignment of the HMD 100 relative to the user's 102 eyes.

[0053] 4 shows a bottom view of the HMD 100. As discussed above with respect to FIG. 3, the first side member 122 and the second side member 124 may traverse channels in the rear harness 300 to extend toward and engage the rear actuator 202. For example, as shown in FIG. 4, the rear harness 300 may include a first channel 400 disposed on a first side (e.g., left) of the HMD 100 and a second channel 402 disposed on a second side (e.g., right) of the HMD 100. The first channel 400 and the second channel 402 may assist in routing the first side member 122 and the second side member 124, respectively, to engage with the rear actuator 202. For example, in some cases, the second section 308 of the first side member 122 may extend into the first channel 400, and the second section 312 of the second side member 124 may extend into the second channel 402. Thus, actuating the rear actuator 202 may engage the first side member 122 and the second side member 124 at different positions or lengths to advance the front 104 and rear 106 of the HMD 100 in the Z direction and tighten the HMD 100 to the user 102. In other words, when tightened, the distance between the first section 306 of the first side member 122 and the entrance to the first channel 400 may decrease, while the distance between the first section 310 of the second side member 124 and the entrance to the second channel 402 may decrease. By actuating the rear actuator 202 in different directions, the second section 308 of the first side member 122 and the second section 312 of the second side member 124 can extend from the first channel 400 and the second channel 402, respectively, loosening the HMD 100.

[0054] 5 shows a side view of the HMD 100. The first section 306 of the first side member 122 may be coupled to the display 108, and the second section 308 of the first side member 122 may extend from the first section 306 toward the rear 106 of the HMD 100. As described above, the second section 308 of the first side member 122 may comprise a semi-rigid or flexible material that curves or flexes around the back of the user's 102's head and engages with the rear actuator 202, thereby allowing the first side member 122 to adjust in length via the rear actuator 202. In some cases, the second section 308 may extend into the first channel 400 within or adjacent to the rear harness 300. For example, FIG. 5 illustrates, in dashed lines, the second section 308 of the first side member 122 extending into the first channel 400 and toward the rear actuator 202. Similarly, the second section 312 of the second side member 124 may include a semi-rigid or flexible material to curve or flex around the back of the user's 102's head, allowing the second side member 124 to adjust in length when the rear actuator 202 is actuated. In some cases, the second section 312 may extend into the second channel 402 within or adjacent to the rear harness 300. For example, FIG. 5 illustrates, in dashed lines, the second section 312 of the second side member 124 extending into the second channel 402 and toward the rear actuator 202.

[0055] 5 shows an upper pad 314 positioned under the top member 112 and / or sleeve 116 (e.g., in the Y direction) to rest on the head of the user 102 when the HMD 100 is worn by the user 102. In some cases, the top member 112 may be coupled to the front 104 of the HMD 100 via a structure of the first antenna 134 and / or may extend through a slot in the structure of the first antenna 134.

[0056] 6 illustrates a front view of the HMD 100, showing that the upper member 112 extends between the front 104 and rear 106 of the HMD 100 and extends into the sleeve 116 to engage the upper actuator 120, thereby allowing the length of the upper member 112 to be adjusted, extended into, and retracted from the sleeve 116. In some cases, the upper member 112 may be centered on the HMD 100.

[0057] FIG. 7 illustrates a rear view of the HMD 100, showing that the first side member 122 and the second side member 124 extend into or are disposed within the housing. For example, as discussed above, the first side member 122 and the second side member 124 may include an end or portion (e.g., a length thereof) that engages with the rear actuator 202. As shown in FIG. 7, the first side member 122 may include a second end 700 opposite the first end 126 coupled to the display 108. The second end 700 may correspond to the end or portion of the second section 308 of the first side member 122 that engages with the rear actuator 202. As described above, the first side member 122 may include a slot 702 disposed adjacent to the second end 700 of the first side member 122 and / or along the length of the first side member 122 proximal to the second end 700. The slot 702 may be complementary to engage with a feature of the rear actuator 202 .

[0058] Similarly, the second side member 124 may include a second end 704. The second end 704 may be opposite the first section 310 coupled to the display 108. The second end 704 may correspond to the end of the second section 312 of the second side member 124 that engages with the rear actuator 202. The second side member 124 may include a slot 706 disposed adjacent to the second end 704 of the second side member 124 and / or along the length of the second side member 124 proximal to the second end 704. The slot 706 may be complementary for engaging a feature of the rear actuator 202.

[0059] 7, in the rear portion 106, such as within the housing 128, of the HMD 100, the first side member 122 and the second side member 124 may intersect or overlap. When actuated, the second ends (i.e., 700 and 704) of the first side member 122 and the second side member 124 may traverse in the X direction. For example, when tightened, the first side member 122 and the second side member 124 may extend through the rear actuator 202. Thus, the second ends of the first side member 122 and the second side member 124 may extend further apart from each other (in the X direction). When loosened, the first and second side members 122, 124 can extend rearward through the rear actuator 202, and the second ends of the first and second side members 122, 124 can move toward each other (in the X direction). Rotating the rear actuator 202 in one direction increases the overlap between the second ends 700, 704, while rotating the rear actuator 202 in the opposite direction decreases the overlap. In this manner, the first and second side members 122, 124 can form a closed loop, the length of which is adjustable to accommodate a variety of different head sizes.

[0060] The first side member 122 and the second side member 124 may extend and retract uniformly, that is, as the first side member 122 and the second side member 124 engage the rear actuator 202, the first side member 122 and the second side member 124 may extend and retract at the same time and by the same amount.

[0061] In some cases, the first side member 122 and the second side member 124 may engage with the rear actuator 202 at any position (in the X direction) within the housing 128 and / or the rear harness 300. For example, the first side member 122 and the second side member 124 may engage with the rear actuator 202 at a position close to or adjacent to the rear harness 300 and spaced apart from the rear 106 of the HMD 100 in the Z direction. In some cases, the first side member 122 and the second side member 124 may engage with the rear actuator 202 at a position close to or adjacent to the rear 106 of the HMD 100, such as under an outer cover of the housing 128 at the rear 106 of the HMD 100.

[0062] 8A and 8B show detailed cross-sectional views illustrating the engagement between the top member 112 and the top actuator 120. The top member 112 extends into the sleeve 116 (in the Z direction) and operably engages with the top actuator 120. For example, as shown in FIG. 8B, the top member 112 includes a slot 118 that engages with the top actuator 120. While the slot 118 is shown as a series of teeth extending longitudinally (in the Z direction) along at least a portion of the length of the top member 112, the slot 118 may include any female / male feature for engaging with a corresponding male / female feature on the top actuator 120. For example, the slot 118 may resemble a detent, lip, snap, bend, friction fit, clip, latch, catch, etc. The top actuator 120 can be rotated (about the Y axis) to shorten and lengthen the length of the top member 112 exposed or disposed outside the sleeve 116, thereby tightening and loosening the top member 112. As described above, to accommodate and / or receive the upper member 112, the sleeve 116 includes a channel or passageway that allows the upper member 112 to extend into and out of the sleeve 116 (in the Z direction). Additionally, the first side member 122 and / or the second side member 124 may include similar features and may similarly engage the rear actuator 202.

[0063] 9 shows a perspective view of a wire pathway 900. In some cases, the wire pathway 900 may be used to route one or more wires, cables, cords, or optical fibers between different portions of an HMD. For example, the wire pathway 900 may route one or more wires between a front portion of the HMD, such as the front portion 104 of the HMD 100, and a rear portion of the HMD, such as the rear portion 106 of the HMD 100.

[0064] The wire pathway 900 may include a housing 902 extending between a first end 904 and a second end 906. Between the first end 904 and the second end 906, the housing 902 may be arcuate, resembling a hemispherical, semicircular, and / or semicylindrical shape designed to extend over the top or crown of a user's head.

[0065] The slide 908 is operably engaged with or within the housing 902 and is capable of extending and retracting from the housing 902 to various lengths. As an example, the housing 902 may resemble a sleeve from which the slide 908 can telescopically extend and retract. In some cases, FIG. 9 shows the wire path 900 in a retracted or retracted state, or a partially retracted state. In the retracted state, the first end 910 of the slide 908 may extend from the first end 904 of the housing 902 (in the Z direction) so as to protrude from within an interior or channel of the housing 902 and be exposed outside the housing 902. However, in some cases, the slide 908 may be configured to collapse or extend completely within the housing 902 in the retracted state. For example, when transitioning to the extended state, the first end 910 of the slide 908 may extend (in the Z direction) from within the housing 902 and protrude outward from the housing 902. In other words, in the extended or partially extended state, the first end 910 of the slide 908 may protrude from the first end 904 of the housing 902 a greater distance than shown in FIG.

[0066] In some cases, the slide 908 may include a similar contour, geometry, curvature, and structure as the housing 902, allowing the slide 908 to extend from and retract within the housing 902. In doing so, the housing 902 and slide 908 may form a convenient mechanism for extending the length of the wire pathway 900.

[0067] As described above, the wire pathway 900 can extend between portions of the HMD. In some cases, the wire pathway 900 may include wires that communicatively couple computing components located at the front of the HMD to computing components located at the rear of the HMD. For example, as shown in FIG. 9 , a slide 908 includes wires 912 that protrude or extend from a first end 910 of the slide 908. In some cases, the wires 912 may be partially disposed within (e.g., embedded within) the slide 908 and / or may extend along and be coupled to one or more surfaces of the slide 908. As discussed herein, the wires 912 may extend from the first end 910 of the slide 908, through the housing 902, to the second end 906 of the housing 902, communicatively coupling the front and rear of the HMD. As an example, the wires 912 may communicatively couple an antenna located at the front of the HMD (e.g., the first antenna 134 of the HMD 100) to an antenna located at the rear of the HMD. In other examples, the wire 912 may provide power to a display of an HMD (e.g., the display 108 of the HMD 100) or may provide a signal or data to render a content item on the display. While FIG. 9 may illustrate the wire path 900 or slide 908 including a single wire, in some cases the wire path 900 may include two or more wires or may include a bundle of wires extending between the first end 910 of the slide 908 and the second end 906 of the housing 902.

[0068] FIG. 10 shows a front view of wire pathway 900. In some cases, wire pathway 900 may include two portions that are abutted, attached, or coupled via fasteners 1000 (e.g., screws, rivets, bolts, pins, etc.). For example, housing 902 may include two halves that are coupled by fasteners 1000. When coupled together, housing 902 may form a channel through which slide 908 can telescopically extend from first end 904 of housing 902. However, wire pathway 900 and / or housing 902 may include a different shape, profile, or curvature than that shown in FIG. 10 and / or fasteners 1000 may be omitted. As an example, wire pathway 900 may include two halves that snap fit together and may have a smooth contour and perimeter without notches, ridges, and / or protrusions.

[0069] 11A and 11B illustrate end views of the wire pathway 900. In particular, FIG. 11A shows a view of the first end 904 of the housing 902, and FIG. 11B shows a view of the second end 906 of the housing 902.

[0070] The first end 904 of the housing 902 may include a first opening 1100 through which the slide 908 may extend. For example, as shown in FIG. 11A , the slide 908 may extend from the first end 904 of the housing 902. The second end 906 of the housing 902 may include a second opening 1102. Disposed between the first opening 1100 and the second opening 1102 may be a channel 1104. The channel 1104 may extend along the housing 902 between the first end 904 and the second end 906.

[0071] Channel 1104 may provide a channel or passageway for slide 908 within housing 902. For example, as slide 908 extends from and retracts into housing 902, channel 1104 may allow slide 908 to telescopically engage with housing 902.

[0072] In some cases, the channel 1104, a surface of the channel 1104, and / or the interior surface of the housing 902 may include protrusions, ribs, or other struts to secure or position the slide 908 within the housing 902 and / or channel 1104. For example, the channel 1104 may include a rib 1106 disposed at the top of the channel 1104 and extending between the first end 904 (or first opening 1100) of the housing 902 and the second end 906 (or second opening 1102) of the housing 902. The rib 1106 may abut, contact, or otherwise operably provide a surface along which the slide 908 may move.

[0073] The ribs 1106 may also offset the slide 908 from contacting the inner surface of the channel 1104. In some cases, the ribs 1106 may offset the slide from the inner surface of the channel 1104 to provide an area through which one or more wires may extend. Such an offset may prevent the wires from interfering with or inhibiting movement of the slide 908 within the housing 902 and / or channel 1104.

[0074] 11A to the second end 906 of the housing 902, as shown in FIG. 11B. That is, the first end of the wire 912 may be disposed at the first end 910 of the slide 908, and the second end of the wire 912 may be disposed at the second end 906 of the housing 902. Thus, the wire 912 may traverse the slide 908, the housing 902, and the channel 1104 between the first end 910 of the slide 908 and the second end 906 of the housing 902.

[0075] In some cases, a portion of the wire 912 may be coupled to or integral with the slide 908 such that the wire 912 elongates or extends, contracts or retracts with movement of the slide 908. For example, a portion of the wire 912 may be routed through the slide 908, extend through a channel or passage in the slide 908, be coupled to an outer surface of the slide 908, and / or be embedded within the slide 908. In doing so, the wire 912 may remain coupled to the slide 908 as the slide 908 extends from and retracts into the housing 902.

[0076] The housing 902 may include an elongated slot 1108 through which a portion of the wire 912 extends. In some cases, the elongated slot 1108 may extend from the second end 906 of the housing 902, or the second opening 1102, toward the interior of the housing 902, or toward the first end 904 of the housing 902 (the Z direction). The elongated slot 1108 may be sized and configured to receive at least a portion of the wire 912. For example, as shown in FIG. 11B , the elongated slot 1108 may include a conduit through which a portion of the wire 912 may extend.

[0077] As described above, the wire 912 may be configured to elongate as the slide 908 extends from the housing 902 and contract as the slide 908 retracts into the housing 902. In some cases, a first portion of the wire 912 may be routed with the slide 908, a second portion of the wire 912 may be routed within the elongated slot 1108, and a third portion interposed between the first and second portions may be coiled, looped, serpentine, or routed within the channel 1104. The third portion may provide slack that allows the slide 908 to operably extend at various lengths from the housing 902 while also allowing the slide 908 to collapse or retract within the housing 902. For example, because the wire pathway 900 may be integrated with the HMD, the slack allows the slide 908 to extend from the housing 902 and adjust to the wire pathway 900 for various head sizes of users wearing the HMD.

[0078] 12A and 12B show engagement between the housing 902 and the slide 908. In FIGS. 12A and 12B, the housing 902 is shown as translucent to show movement of the slide 908 within the housing 902, e.g., within the channel 1104 of the housing 902. In some cases, FIG. 12A illustrates the wire pathway 900 in a retracted or partially retracted state, while FIG. 12B illustrates the wire pathway 900 in an extended or partially extended state. That is, compared to the retracted state, in the extended state, the first end 910 of the slide 908 may extend farther from the first end 904 of the housing 902, thereby exposing a greater length of the slide 908 outside of the housing 902.

[0079] 12A , in the retracted state, the slide 908 may minimally protrude or extend from the housing 902 (in the Y and Z directions). For example, a first end 910 of the slide 908 may protrude from the first end 904 of the housing 902. A second end 1200 of the slide 908, opposite the first end 910, is shown disposed within the housing 902 in the retracted state, closer to the second end 906 of the housing 902 within the channel 1104.

[0080] In some cases, the housing 902, slide 908, and / or channel 1104 may include features such as a flange or stop against which the second end 1200 of the slide 908 abuts in the retracted state. Thus, in some cases, the slide 908 may be prevented from extending fully into the housing 902. In other cases, in the retracted state, the second end 1200 of the slide 908 may abut against a stop such that the first end 910 of the slide 908 extends from the housing 902 or such that the first end 910 of the slide 908 is substantially planar or aligned with the first end 904 of the housing 902.

[0081] In the retracted state, FIG. 12A shows that the wire 912 may route from the first end 910 of the slide 908 within the housing 902 or channel 1104 to the second end 906 of the housing 902. The housing 902 may include a conduit (e.g., an elongated slot 1108) for receiving the wire 912 (or a portion of the wire 912) and routing the wire 912 from the first end 910 of the slide 908 to the second end 906 of the housing 902. In some cases, as shown in FIGS. 12A and 12B , the wire 912 may route from a first side (e.g., right) of the wire path 900 to a second side (e.g., left) of the wire path 900. Such routing may prevent the wire 912 from buckling or crimping when the slide 908 transitions between the retracted state and the extended state. In some cases, the stiffness of the wire 912, or the thickness of the wire 912, may prevent the wire 912 from buckling.

[0082] 11A and 11B , a first portion 1202 of the wire 912 may, in some cases, be attached to, embedded in, or coupled to the slide 908. The first portion 1202 of the wire 912 may extend from a first end 910 of the slide 908 along the longitudinal direction (Z direction) of the slide 908 toward a second end 1200 of the slide 908. A second portion 1204 of the wire 912, opposite the first portion 1202, may extend from the second end 906 of the housing 902, into the elongated slot 1108, and toward the first end 904 of the housing 902. A third portion 1206 of the wire 912 may extend between the first portion 1202 and the second portion 1204 and may provide slack for the slide 908 to extend from the housing 902. In other words, the third portion 1206 of the wire 912 may extend from the second end 1200 of the slide 908 to the position where the wire 912 engages the elongated slot 1108. Between these two positions, or as shown in FIG. 12A between the first portion 1202 and the second portion 1204 of the wire 912, the wire 912 may be coiled or curled within the housing 902 and / or the channel 1104. Thus, the third portion 1206 may provide excess wire to allow the slide 908 to extend from the housing 902 when the wire pathway 900 transitions between the retracted and extended states.

[0083] 12B , in the extended state, the slide 908 may extend or protrude from the housing 902 (in the Y and Z directions). In some cases, the slide 908 may telescopically extend from the first end 904 of the housing 902. In the extended state, the first end 910 of the slide 908 may protrude a greater distance from the first end 904 of the housing 902 compared to the distance the first end 910 of the slide 908 protrudes from the first end 904 of the housing 902 in the retracted state. In other words, compared to the retracted state, in the extended state, the second end 1200 of the slide 908 may be positioned at a greater distance from the second end 906 of the housing 902 than in the retracted state. As shown in FIG. 12B , the third portion 1206 may accordingly provide slack for the slide 908 to extend. 12B, the third portion 1206 extends or elongates to allow the slide 908 to extend to the extended state. The wire 912 may have sufficient slack, or the third portion 1206 may include sufficient length, to accommodate the slide 908 extending from the housing 902.

[0084] In some cases, slide 908 and / or housing 902 may include features such as tabs, flanges, or stops that prevent slide 908 from disengaging from housing 902 in the extended state. Thus, the stops may prevent slide 908 from fully exiting channel 1104 and separating from housing 902.

[0085] 13 illustrates a side view of the wire path 900, showing the wire path 900 in an extended or partially extended state. A first end 910 of the slide 908 is shown extending from the first end 904 of the housing 902.

[0086] The housing 902 and slide 908 may be arcuate, curved, and / or include a similar curvature or length that allows the slide 908 to extend from and retract into the housing 902.

[0087] FIG. 14 illustrates a perspective view of a head-mounted display (HMD) 1400. In some cases, the HMD 1400 may include similar components or features as the HMD 100. For example, the HMD 1400 may include a display, a structure that adjusts and accommodates various head sizes, a loudspeaker for outputting audio to a user wearing the HMD 1400, etc. However, as shown in FIG. 14 , the HMD 1400 includes a wire path 1402 for routing one or more wires between a front portion 1404 of the HMD 1400 and a rear portion 1406 of the HMD 1400. In some cases, the wire path 1402 may be similar to, correspond to, or include similar features as the wire path 900. For example, the wire path 1402 may include a housing 1408 and a slide 1410 operable to telescopically extend from the housing 1408 at various lengths.

[0088] The wire path 1402 may be disposed below (in the Y direction) the top member 1412 and the sleeve 1414. In some cases, the housing 1408 and the sleeve 1414 may be attached or coupled to one another. The top member 1412 may be similar to and / or equivalent to the top member 112 and may have an adjustable length to extend and retract to accommodate various users wearing the HMD 100 and / or to accommodate different user fits. For example, the top member 1412 may include a slot 1416 that engages with an top actuator 1418. The top actuator 1418 may be coupled to a sleeve 1414 having an opening through which the top member 1412 can extend and retract. In doing so, the top member 1412 may have an adjustable length.

[0089] The wire pathway 1402 is configured to extend and retract as the upper member 1412 is adjusted. Thus, the wire pathway 1402 can be adjusted to accommodate different users and / or as the upper actuator 1418 is actuated. As the upper member 1412 extends from the sleeve 1414, such that the length increases, the wire pathway 1402 can correspondingly increase in length. For example, when the upper member 1412 extends from the sleeve 1420, the length of the slide 1410 extending from the housing 1408 can increase. Correspondingly, when the upper member 1412 extends into the sleeve 1420, such that the length decreases, the wire pathway 1402 can correspondingly decrease in length. For example, when the upper member 1412 extends into the sleeve 1414, the length of the slide 1410 extending from the housing 1408 can decrease and retract into the housing 1408.

[0090] The upper actuator 1418 can drive and retract the slide 1410 from and into the housing 1408. For example, if the upper member 1412 operably couples the front portion 1404 of the HMD 1400 and the rear portion 1406 of the HMD 1400 via the sleeve 1414, when the upper actuator 1418 is actuated, the front portion 1404 of the HMD 1400 and the rear portion 1406 of the HMD 1400 may extend apart (in the Z direction) or retract together (in the Z direction). Movement of the front portion 1404 and the rear portion 1406 of the HMD 1400 can cause the slide 1410 to correspondingly extend from and retract into the housing 1408.

[0091] In some cases, the housing 1408 and the sleeve 1414 may include similar lengths and / or extend similar distances from the rear 1406 of the HMD 1400.

[0092] The wires routed through the wire pathway 1402 may include sufficient slack to allow the slide 1410 to extend from and retract into the housing 1408. Thus, the wires may be movable within the housing 1408 to allow the slide 1410 to extend. For example, the wire pathway 1402, such as the housing 1408, may include channels to route the wires between the front 1404 and rear 1406 of the HMD 1400 and / or to assist or prevent the wires from getting caught, buckling, or crimping within the housing 1408 when the slide 1410 is telescopically extended from the housing 1408.

[0093] In some cases, routing wires through the wire pathway 1402 can avoid wires being routed or positioned with the sides of the HMD 1400, which can increase the aesthetic appearance of the HMD 1400 and / or prevent cables and / or parts of the user (e.g., hair) from becoming entangled or tangled with the wires. In other words, rerouting cables or other wires between parts of the head-mounted display can, for example, facilitate freedom of movement of the user and / or reduce external noise on the sides of the head-mounted display. In some cases, the wire pathway 1402 can be configured to route a single wire, multiple wires, cords, and / or bundles of wires. For example, the wire pathway 1402 can include a first wire for providing power to a display at the front 1404 of the HMD 1400, a second wire for communicatively linking an antenna of the HMD 1400, and / or a third wire for providing image data for output on a display of the HMD 1400. However, in some cases, the HMD 1400 may additionally or alternatively include wires routing with the HMD 1400 to communicatively couple components at the front 1404 of the HMD 1400 with components at the rear 1406 of the HMD 1400.

[0094] 15 shows a top view of the HMD 1400. In FIG. 15, portions of the top member 1412 and sleeve 1414 are shown as semi-transparent to show wires 1500 routing from the front 1404 of the HMD 1400 to the back 1406 of the HMD 1400. The wires 1500 are generally represented by dotted lines in the wire paths 1402.

[0095] As shown, the wires 1500 may be routed from a first end 1502 of the slide 1410 along the longitudinal length of the slide 1410 (in the Z direction) to the rear 1406 of the HMD 1400 to one or more components disposed in a compartment or housing at the rear 1406 of the HMD 1400. A second end may be disposed within the housing 1408.

[0096] A first end 1502 of the slide 1410, or a first end of the top member 1412, may be hingedly, rotatably, or pivotally coupled to the HMD 1400 to enable adjustment of the display on the user's face. In some cases, the wires 1500 may route within the slide 1410 along a first side 1504 of the wire pathway 1402 and transition to routing through the housing 1408 along a second side 1506 of the wire pathway 1402 (i.e., away from the first side 1504 in the X direction). The wire pathway 1402 may include channels on each side or component of the wire pathway 1402 for receiving and routing the wires 1500.

[0097] 16 illustrates a side view of a head-mounted display (HMD) 1600. In some cases, the HMD 1600 may include similar components to the HMD 100 and / or the HMD 1400. For example, the HMD 1600 may include members and actuators for adjusting the size of the HMD 1600 when worn by a user and may include wire paths such as the wire path 900 or the wire path 1402 for routing wires between a front portion 1602 and a rear portion 1604 of the HMD 1600.

[0098] The HMD 1600 may include a harness 1606 disposed at the rear 1604 of the HMD 1600 to adjust and / or accommodate various users. The harness 1606 may be centered with the longitudinal axis (Z direction) of the HMD 1600 to clutch the center of the back of the user's head. That is, when the HMD 1600 is worn by a user, the harness 1606 can pivot and point, grip, or clutch around the back of the user's head. The harness 1606 may also be spring- or tension-type (e.g., a helical spring, a torsion spring, a conical spring, etc.) to extend and maintain contact with the back of the user's head. The harness 1606 may also flex around one or more axes to conform to the back of the head.

[0099] In some cases, the harness 1606 may include a frame 1608 pivotally coupled to a housing 1610 at the rear 1604 of the HMD 1600. In some cases, the frame 1608 may be coupled to the housing 1610 via a first hinge 1612, a strut 1614, and / or a second hinge 1616. The first hinge 1612 may be coupled to a first end of the strut 1614 and may allow the strut 1614 to translate horizontally and vertically toward the front 1602 and top of the HMD 1600 (in the Y and Z directions). The struts 1614 may pivot about the first hinge 1612 to move outward from the housing 1610 toward or extend away from the user, and / or may pivot about the first hinge 1612 (X-axis) to move inward or toward the housing 1610 (Z-direction). In doing so, the harness 1606 may be positioned horizontally and vertically to clutch the back of the head. The struts 1614 may be centered with the longitudinal axis of the HMD 1600 (Z-direction).

[0100] Additionally, the frame 1608 may pivot about a second hinge 1616 (X-axis) to further assist in clutching the occipital lobe. For example, the second hinge 1616 may be coupled to a second end of the strut 1614, allowing the frame 1608 to reposition and / or clutch under the occipital lobe. In doing so, when secured to a user, the harness 1606 may lock the HMD 1600 under the base of the head to provide stability and prevent movement of the HMD 1600 (e.g., when the head is tilted). Additionally, the frame 1608 may be centered with the longitudinal axis of the HMD 1600 (Z-direction) and coupled to the occipital lobe.

[0101] As discussed herein, the harness 1606 may include springs (e.g., helical springs, torsion springs, conical springs, etc.), shapes, specific material thicknesses, and / or other biasing members to apply a constant pressure or force against the back of the head. For example, the harness 1606 may include springs 1618 (e.g., torsion springs, leaf springs, etc.) disposed between the struts 1614 and the housing 1610. The springs 1618 may operably engage with the struts 1614 to position the struts 1614 outward from the housing 1610 to abut against the user's head. The springs 1618 may apply a force to the struts 1614 to translate the struts 1614 in the Z direction or toward the front 1602 of the HMD 1600. Additionally, in some cases, the springs 1618 may be disposed on the pins of the first hinge 1612 to bias the struts 1614 about the X axis.

[0102] Because the harness 1606 is designed to clutch the back of the head, the harness 1606 may include a pad 1620 coupled to the frame 1608 to enhance user comfort. In some cases, the struts 1614 may be hingedly, rotatably, or pivotally coupled to a first side of the frame 1608, and the pad 1620 may be coupled to a second side of the frame 1608 opposite the first side. Additionally, the shape of the frame 1608 and / or pad 1620 may bend, curve, arc, or include other features and / or shapes to accommodate user ergonomics. Additionally or alternatively, the harness 1606 may engage or couple to the housing via a ball joint for articulation about one or more axes.

[0103] The HMD 1600 may further include other structures for positioning and / or securing the HMD 1600. For example, the housing 1610 may include lateral supports 1622 configured to extend circumferentially or radially around a portion of the user's head. In some cases, the lateral supports 1622 may include flanges or other protrusions extending outward from the center of the HMD 1600 to engage with left and right portions of the user's head. When the HMD 1600 is fastened to the user (e.g., via an adjustable top member and / or adjustable side members), the lateral supports 1622 may distribute compressive forces across the head. The portions of the lateral supports 1622 that contact the head may include padding.

[0104] 16, the lateral supports 1622 may be positioned above the harness 1606 (in the Y direction). In some cases, the lateral supports 1622 may grip or clutch the back of the user's head at a location above the occipital lobe. Thus, the HMD 1600 may include structure (e.g., the harness 1606) that clutches the user's head below the occipital lobe, and structure (e.g., the lateral supports 1622) that clutch the user's head above the occipital lobe.

[0105] FIG. 17 shows a top perspective view of the HMD 1600. As shown, the harness 1606 extends from the housing 1610 in a direction toward the front 1602 of the HMD 1600 (the Z direction). As discussed above, the harness 1606 may be permitted to rotate and position to conform and clutch the user's occipital lobe via the first hinge 1612, struts 1614, and second hinge 1616. Additionally, FIG. 17 shows that the harness 1606 may include a spring 1700 (or other biasing member) to maintain pressure or force against the user's head, which may further help secure the HMD 1600 to the user. The spring 1700 may bias the frame 1608 to clutch and / or position it below the occipital lobe about the X axis.

[0106] When the HMD 1600 is secured to a user, or while the HMD 1600 is secured to a user, the first hinge 1612, strut 1614, second hinge 1616, spring 1618, and / or spring 1700 may collectively act in concert to position the frame 1608 relative to the occipital lobe. That is, because the occipital region between users may include different shapes or ergonomics, the harness 1606 may be positioned and adjusted to accommodate different users.

[0107] The harness 1606 may also be configured to operate in conjunction with a member to increase or decrease the size of the HMD 1600 on the user. For example, the HMD 1600 may include a member that engages with an actuator to adjust the length of the member. By way of example, and as shown in FIG. 17 , the HMD 1600 may include a member 1702 (which may correspond to and / or correspond to the second side member 124) and an actuator 1704 (which may correspond to and / or correspond to the rear actuator 202). When the HMD 1600 is fastened to the user, through actuation of the actuator 1704, the member 1702 may retract into the housing 1610 via the channel 1706. Conversely, upon pulling the front 1602 of the HMD 1600 toward the rear 1604 of the HMD 1600, the harness 1606 may reposition horizontally (Z direction) and vertically (Y direction) to engage the user's head.

[0108] 18 shows a top view of the harness 1606 of the HMD 1600, showing the frame 1608 operably coupled to the housing 1610 via a first hinge 1612, a strut 1614, a second hinge 1616, a spring 1618, and a spring 1700 (e.g., a torsion spring, a leaf spring, etc.). The frame 1608 can be curved, arced, or include other features and / or shapes (e.g., in the X direction) to clutch the head and / or to radially wrap or extend circumferentially around at least a portion of the back of the head. For example, the frame 1608 may be semicircular, substantially semicircular, arced, or curved.

[0109] The frame 1608 can include a flared or curved first portion extending in a first direction away from the longitudinal axis (Z-axis) of the frame 1608 to clutch the right side of the back of the user's head. The frame 1608 can also include a flared or curved second portion extending in a second direction away from the longitudinal axis of the frame 1608 to clutch the left side of the back of the user's head. In some cases, the frame 1608 can include a third portion sandwiched between the first and second portions and that is flat to clutch the central portion of the back of the user's head.

[0110] As shown, the spring 1700 can bias the frame 1608 about the X-axis to maintain pressure against the head. For example, depending on the orientation of the spring 1700, the spring 1700 can bias the frame toward the top or bottom of the HMD 1600. Additionally, in some cases, the spring 1700 can be positioned over the pin of the second hinge 1616 to bias the frame 1608 about the X-axis.

[0111] The harness 1606 may include additional features to assist in positioning the harness 1606 around the user and / or to improve user comfort. For example, FIG. 18 shows that the frame 1608 may include a slot 1800. In some cases, the slot 1800 may be located on the back (or first side) of the frame 1608, opposite the front (or second side) of the frame 1608 that includes the pad 1620. The slots 1800 may extend heightwise (Y-direction) of the frame 1608, or from the bottom 1802 of the frame 1608 to the top 1804 of the frame, and may be spaced apart laterally (X-direction) of the frame 1608. Fasteners 1806 may extend through the mounts 1808 to engage with the slots 1800. For example, the fasteners 1806 may be positioned through the mounts 1808 and coupled to the slots 1800 and / or the frame 1608. However, the fasteners 1806 can be loosened to allow the frame 1608 to be repositioned along the slot 1800 (Y direction), thus providing the user with an additional degree to personalize the fit of the HMD 1600.

[0112] 19 illustrates a user 1900 wearing an HMD 1600. As discussed above with respect to the HMD 100, the user 1900 may wear the HMD 1600 for the purpose of immersing the user 1900 in a VR or AR environment.

[0113] The user 1900 may actuate one or more actuators of the HMD 1600 to secure and / or tighten the HMD 1600. For example, the user 1900 may actuate an actuator 1704 operably coupled to the member 1702. When the user 1900 actuates the actuator 1704 to tighten the HMD 1600, the rear portion 1604 and the front portion 1602 of the HMD 1600 may be directed inward (in the Z direction) to tighten the HMD 1600 to the user 1900. When tightened, the harness 1606 may engage with the back of the user's 1900's head, as shown in FIG. 19 . That is, as the HMD 1600 tightens on the user 1900, the harness 1606 may be urged against the back of the user's 1900's head. As discussed above, the harness 1606 may include hinges (e.g., first hinge 1612 and second hinge 1616) and struts (e.g., strut 1614) that allow the harness 1606 to reposition laterally and vertically to accommodate the user 1900. Thus, as shown in FIG. 19 , the harness 1606 may engage the back of the head of the user 1900 below the occipital lobe.

[0114] Moving the actuator 1704 in the opposite direction may decrease the force applied by the HMD 1600, loosening the HMD 1600 from the user 1900 and / or adjusting the fit of the HMD 1600. In doing so, and when loosened, the harness 1606 may maintain contact with the back of the user's 1900's head. That is, by including spring 1618 and spring 1700, the harness 1606 can maintain contact or pressure on the back of the user's 1900's head. As the user 1900 adjusts the HMD 1600 to change the force applied by the HMD 1600, the harness 1606 may be directed inward (i.e., toward the user 1900, toward the front 1602 in the Z direction) and outward (away from the user 1900, toward the rear 1604 in the Z direction) and may be permitted to pivot (X-axis) to clutch the head.

[0115] 19 , when the HMD 1600 is worn by a user 1900, the lateral supports 1622 may extend circumferentially around at least a portion of the back of the head of the user 1900, such as on the left and right sides of the user 1900. In some cases, the harness 1606 or frame 1608 may be positioned within the lateral supports 1622 (in the Z direction) when the HMD 1600 is worn by a user.

[0116] FIG. 20 illustrates an exemplary harness 2000. In some cases, the harness 2000 may be usable with an HMD, such as HMD 100 and / or HMD 1400. The harness 2000 may be positioned at the rear of the HMD to abut or clutch against the back of the user's head, such as the occipital lobe. As shown in FIG. 20 , the harness 2000 may include struts 2002 that extend from the rear of the HMD and engage with a frame 2004 of the harness 2000 via hinges 2006. The hinges 2006 may assist in positioning the frame 2004 relative to the back of the user's head. For example, the harness 2000 may exert a force on the back of the head, just below the occipital lobe, to provide stability and position the harness 2000 below the base of the head. In some cases, the frame 2004 may be spring-loaded to conform to the user. Additionally or alternatively, the frame 2004 may be coupled to the struts 2002 via ball joints for pivoting, allowing the frame 2004 to rest against the user's head.

[0117] Figures 21A and 21B illustrate perspective views of wire path 2100. Figure 21A illustrates wire path 2100 in a retracted or partially retracted state, and Figure 21B illustrates wire path 2100 in an extended or partially extended state.

[0118] In some cases, wire pathway 2100 may be similar to and / or include similar features as wire pathway 900 and / or wire pathway 1402. For example, wire pathway 2100 may include a housing 2102, a slide 2104 that extends telescopically from a first end 2106 of the housing 2102, and a wire 2108 that extends from a first end 2110 of the slide 2104, through the housing 2102, and to a second end 2112 of the housing 2102. In FIG. 21B , wire 2108 is generally represented by a dashed line to illustrate wire 2108 routing through wire pathway 2100.

[0119] In some cases, the wire pathway 2100 may include an actuator 2114 operable to extend the slide 2104 at various lengths from the housing 2102. In some cases, the actuator 2114 may include features similar to the upper actuator 120 discussed previously herein. The actuator 2114 may be disposed on or coupled to the housing 2102 and may operably engage with the slide 2104. For example, the actuator 2114 may include teeth that engage with slots 2116 in the slide 2104. Through actuating the actuator 2114, the slide 2104 can adjust its length and extend at various lengths from the first end 2106 of the housing 2102. For example, actuating the actuator 2114 can extend the slide 2104 from the housing 2102 or retract it into the housing 2102, or transition the slide 2104 between an extended state or a retracted state. Thus, the engagement between the actuator 2114 and the slide 2104 may resemble a ratchet mechanism that moves the slide 2104 in and out of the housing 2102. The housing 2102 may include a channel for receiving the slide 2104 as the length of the slide 2104 is adjusted.

[0120] As discussed above, the wire 2108 may include a sufficient amount of slack to allow the slide 2104 to telescopically extend within the housing 2102. Additionally, the housing 2102 and / or slide 2104 may include features that allow the wire 2108 to extend and retract without getting caught, pinched, or buckling. Thus, a user may manipulate the actuator 2114 to accommodate various head sizes or tightnesses.

[0121] 22 illustrates an HMD 2200 being worn by a user 2202 that includes a wire pathway 2100. In some cases, the HMD 2200 can correspond to, correspond to, or include similar features as the HMD 100, HMD 1400, and / or HMD 1600 discussed herein above. For example, the HMD 2200 can include one or more members that adjust in length to accommodate various user head sizes and / or adjust the fit of the HMD 2200 on the user 2202. The one or more members may span or extend between the front 2204 and rear 2206 of the HMD 2200 and may engage or be operably coupled to one or more actuators.

[0122] 22 , the wire pathway 2100 extends between the front 2204 and rear 2206 of the HMD 2200 and spans the top of, or the crown of, the user's 2202 head. For example, the first end 2106 of the slide 2104 may be coupled to a display 2208 located on the front 2204 of the HMD 2200. In some cases, the first end 2106 may be hingedly, rotatably, or pivotally coupled to the display 2208 to allow the display 2208 to adjust and accommodate the user 2202.

[0123] The slide 2104 extends into the housing 2102 and can engage with the actuator 2114 via a slot 2116 on the slide 2104. A second end 2112 of the housing 2102 can engage with a rear portion 2206 of the HMD 2200, such as a housing or compartment 2210.

[0124] The user 2202 can utilize the actuator 2114 to extend the length of the slide 2104 that protrudes from the housing 2102, thereby adjusting the distance between the front 2204 and rear 2206 of the HMD 2200. That is, actuating the actuator 2114 can cause the slide 2104 to extend from or retract into the housing 2102. Once the slide 2104 is coupled to the display 2208 and the housing 2102 is coupled to the compartment 2210, actuating the actuator 2114 moves the slide 2104 to tighten and / or loosen from the user 2202.

[0125] 22, the housing 2102 and / or slide 2104 may include a curvature that corresponds to or substantially corresponds to the shape of the top of the head of the user 2202. Additionally, padding 2212 may be disposed between the housing 2102 and the user 2202 to increase the comfort of the HMD 2200. FIG. 22 also shows that the HMD 2200 may include a harness 2214, which may be similar to, correspond to, or include similar features as the harness 1606.

[0126] 23 illustrates an exemplary HMD 2300. As shown in FIG. 23, the HMD 2300 may include a top member 2302 extending from a front 2304 of the HMD 2300 toward a rear 2306 of the HMD 2300. A first end 2308 of the top member 2302 is shown coupled to a display 2310 of the HMD 2300 via a hinge 2312. As a result, the top member 2302 may be configured to pivot relative to the display 2310 (e.g., about an X-axis) so that the display 2310 views the user's face when worn.

[0127] As shown in FIG. 23 and as discussed above with respect to HMD 100, HMD 1400, HMD 1600, and / or HMD 2200, the top member 2302 may include a second end disposed within the sleeve 2314. The top member 2302 may include a slot that engages with an top actuator 2316 coupled to the sleeve 2314. In some cases, the slot in the top member 2302 may be similar to the slot 118, and the top actuator 2316 may be similar to the top actuator 120, as discussed herein above with respect to HMD 100. By actuating the top actuator 2316, the top member 2302 can telescopically extend and retract from the sleeve 2314 to various lengths, thereby increasing or decreasing the fit of the HMD 2300 on the user. In other words, actuating the top actuator 2316 can increase or decrease the exposed length of the top member 2302 from the sleeve 2314. The slots in the top member 2302 may be located within or within the sleeve 2314 .

[0128] In some cases, the upper member 2302 may include a flexible material (e.g., rubber, plastic, etc.) configured to arc, bend, and / or otherwise conform to the user's head. In some cases, the upper member 2302 may also include notches that allow the upper member 2302 to bend or flex.

[0129] In some cases, the upper member 2302 may include a wire that runs between the front 2304 and the rear 2306 of the HMD 2300. In some cases, the wire may be integrally formed within the upper member 2302 and may extend between a first end 2308 of the upper member 2302 and a second end of the upper member 2302. Between the first end 2308 and the second end, the wire may traverse around a slot in the upper member 2302. Additionally, the wire may include slack outside of (e.g., not embedded within) the upper member 2302 that allows the upper member 2302 to extend and retract to various lengths from the sleeve 2314.

[0130] 23 illustrates the upper member 2302 extending into the sleeve 2314 at a first end 2318 of the sleeve 2314. A second end 2320 of the sleeve 2314 opposite the first end 2318 can be coupled to the rear 2306 of the HMD 2300 via a hinge 2322. The hinge 2322 can pivotally couple the second end 2320 of the sleeve 2314 to the rear 2306 of the HMD 2300.

[0131] The HMD 2300 includes a rear actuator 2324 that can engage one or more side members, such as a first side member 2326 and a second side member 2328. In some cases, the first side member 2326 and the second side member 2328 can be similar to the first side member 122 and the second side member 124, as discussed above with respect to the HMD 100, while the rear actuator 2324 can be similar to the rear actuator 202 so as to operably engage the first side member 2326 and / or the second side member 2328.

[0132] FIG. 24 shows a top view of the HMD 2300. As shown, the top member 2302 extends from the front 2304 of the HMD 2300 toward the rear 2306 of the HMD 2300 and can operably engage with the top actuator 2316 via a slot 2400 extending along a portion of the length of the top member 2302. In FIG. 24, the slot 2400 is generally represented by a dashed line. In some cases, the slot 2400 can be similar to the slot 118, as discussed herein above with respect to the HMD 100. Thus, by actuating the top actuator 2316, the top member 2302 can extend from and retract into the sleeve 2314 at various lengths, thereby tightening and loosening the HMD 2300 to and from the user. FIG. 24 also illustrates the second end 2402 of the top member 2302 disposed within the sleeve 2314.

[0133] 25 illustrates a side view of the HMD 2300 and shows that the top member 2302 is pivotally coupled to the front 2304 of the HMD 2300 at a first end 2308 and via a hinge 2312. A second end 2320 of the sleeve 2314 may be pivotally coupled to the rear 2306 of the HMD 100 via a hinge 2322. Thus, the HMD 2300 may be configured to fit the user's head when worn.

[0134] The second end 2320 of the top member 2302 can traverse through the opening in the first end 2318 of the sleeve 2314, and the slot 2400 can engage with the top actuator 2316. Additionally, as described above, the top member 2302 can include wires disposed therein (e.g., embedded within the top member 2302) or coupled thereto for communicatively coupling one or more computing components (e.g., antenna, display, etc.) located in the front portion 2304 with one or more computing components (e.g., antenna, battery, etc.) located in the rear portion 2306.

[0135] 26 illustrates a sleeve 2314 of an HMD 2300. In some cases, the sleeve 2314 may comprise a single piece of material or may comprise multiple portions (e.g., two halves) assembled or joined together. As shown, the sleeve 2314 may include an arcuate shape between a first end 2318 and a second end 2320.

[0136] The first end 2318 may include an opening 2600 sized and configured to receive the top member 2302. In some cases, the opening 2600 may comprise an opening for a channel 2602 disposed within the sleeve 2314. The channel 2602 may include a passageway through which the top member 2302 may telescopically extend and retract, thereby allowing the HMD 2300 to tighten and loosen from the user. Within the channel 2602, the slot 2400 may engage with the top actuator 2316. The channel 2602 may also be sufficiently sized to allow one or more wires to extend therethrough.

[0137] A second end 2320 of the sleeve 2314 may include a hinge 2322 for pivotally coupling the sleeve 2314 to a rear portion 2306 of the HMD 2300, such as a housing.

[0138] 26, the sleeve 2314 may include an opening 2604 located proximate the second end 2320 of the sleeve 2314. The opening 2604 may extend through the entire sidewall of the sleeve 2314 to provide access or passageway into the channel 2602. For example, as described above, the top member 2302 may include a wire embedded therein, where a first end of the wire may extend from the first end 2308 of the top member 2302, while a second end of the wire may extend from the second end of the top member 2302. When the second end 2402 of the top member 2302 is disposed within the sleeve 2314, the second end of the wire exits the sleeve 2314 and / or the channel 2602 through the opening 2604. However, the opening 2604 may be located elsewhere proximate the second end 2320 of the sleeve 2314.

[0139] 27 shows a perspective view of the top member 2302. As shown, the top member 2302 can include an arcuate member extending between a first end 2308 and a second end 2402. As described above, the second end 2402 can be sized and configured for insertion through the opening 2600 such that the top member 2302 can telescopically extend from and retract into the sleeve 2314.

[0140] The top member 2302 may include a wire 2700. In some cases, the wire 2700 may be embedded within the top member 2302. In FIG. 27 , the wire 2700 is generally represented by a dashed line to illustrate the wire 2700 within the top member 2302. Additionally, or alternatively, the wire 2700 may be attached, adhered, attached, or otherwise coupled to the top member 2302. As shown, the wire 2700 may include a first end 2702 extending from a first end 2308 of the top member 2302 and a second end 2704 extending from a second end 2402 of the top member 2302. Between the first end 2702 and the second end 2704, the wire 2700 may traverse through, along, and / or within the top member 2302. Additionally, if the top member 2302 includes a slot 2400 disposed through a thickness or portion of the top member 2302 , the wire 2700 may traverse with or around the slot 2400 .

[0141] As discussed above, the second end 2704 of the wire 2700 may be fed or disposed through the opening 2604 of the sleeve 2314. To allow the upper member 2302 to extend from the sleeve 2314 at various lengths, the wire 2700 may include sufficient length and / or slack to tighten and loosen the HMD 2300 to and from the user. For example, the wire 2700 may include slack 2706 between the second end 2402 of the upper member 2302 and the second end 2704 of the wire 2700. The slack 2706 may allow the upper member 2302 to extend from the sleeve 2314 at various lengths. In some cases, the slack 2706 may coil within the sleeve 2314 to prevent the wire 2700 from buckling or crimping as it extends from and retracts into the sleeve 2314.

[0142] The top member 2302 may include a material (e.g., rubber, composite, plastic, etc.) that allows the top member 2302 to bend or arch. Additionally, the top member 2302 may include indentations, depressions, splits, or notches 2708 that allow or assist the top member 2302 to bend.

[0143] 28 shows a perspective view of a second side member 2328. The second side member 2328 may include a first end 2800 for hingedly or pivotally coupling to a front 2304 (e.g., a display) of the HMD 2300 and a second end 2802 for engaging with a rear actuator 2324 of the HMD 2300. For example, as shown, the second side member 2328 may include a slot 2804 extending along at least a portion of the length of the second side member 2328 and configured to engage with the rear actuator 2324 at various positions. In some cases, the slot 2804 may be similar to the slot 706.

[0144] As shown, the second side member 2328 may have an arcuate shape designed to extend between the front 2304 and rear 2306 of the HMD 2300. As such, the second side member 2328 may comprise a flexible and / or semi-rigid material (e.g., plastic, composite, rubber, etc.).

[0145] The first side member 2326 may include similar features as the second side member 2328. For example, the second side member 2328 may correspond to the first side member rotated about the Z axis.

[0146] 29 illustrates an example HMD 2900. As shown in FIG. 29, the HMD 2900 may include a top member 2902 extending from a front 2904 of the HMD 2900 toward a rear 2906 of the HMD 2900. A first end 2908 of the top member 2902 is shown coupled to a display 2910 of the HMD 2900 (e.g., via a hinge). As a result, the top member 2902 may be configured to pivot relative to the display 2910 so that the display 2910 views the user's face when worn.

[0147] The top member 2902 may extend into or through the sleeve 2912 and route to a rear 2906 of the HMD 2900. As discussed in detail herein, a second end of the top member 2902, or a portion of the top member 2902, may engage with a first actuator 2914 to adjust the fit of the HMD 2900 on a user when in use. For example, the top member 2902 may include a slot that engages with the first actuator 2914. In some cases, the slot in the top member 2902 may be similar to the slot 118, and the first actuator 2914 may be similar to the top actuator 120, as discussed herein above with respect to the HMD 100. Thus, by actuating the first actuator 2914, the top member 2902 can telescopically extend to various lengths, thereby increasing or decreasing the fit of the HMD 2900 on the user. In some cases, the slots in the top member 2902 may be located inside the rear of the HMD 2900. The top member 2902 may include a flexible material (e.g., rubber, plastic, etc.) configured to arc, bend, and / or otherwise conform to the user's head.

[0148] The HMD 2900 also includes one or more side members, such as a first side member 2916 and a second side member 2918. In some cases, the first side member 2916 and the second side member 2918 may be similar to the first side member 122 and the second side member 124, as discussed above with respect to the HMD 100. The first side member 2916 and the second side member 2918 extend along opposite sides of the HMD 2900, between the front portion 2904 and the rear portion 2906, and may engage a second actuator 2920. In such cases, the first side member 2916 and / or the second side member 2918 may extend into or be received by a portion of the housing at the rear of the HMD 2900.

[0149] In some cases, the second actuator 2920 may be similar to the rear actuator 202 and operatively engages the first side member 2916 and the second side member 2918. Actuating the second actuator 2920 can increase or decrease the exposed length of the first side member 2916 and the second side member 2918 to tighten or loosen the HMD 2900 to / from the user.

[0150] As shown, the first actuator 2914 and the second actuator 2920 may be positioned or located proximate to the rear 2906 of the HMD 2900. That is, for example, compared to an HMD 100 in which the top actuator 202 is located at the top of the HMD 100, the first actuator 2914 of the HMD 2900 may be positioned closer to, adjacent to, and / or at the rear 2906 of the HMD 2900. In some cases, positioning the first actuator 2914 and / or the second actuator 2920 at the rear 2906 of the HMD 2900 may allow a user to more conveniently tighten and loosen the HMD 2900 (i.e., because the first actuator 2914 and the second actuator 2920 may be positioned proximate to one another). Details of the first actuator 2914 and the second actuator 2920 are discussed herein.

[0151] The HMD 2900 may further include a rear harness 2922 that engages with the back of the user's head when the HMD 2900 is worn. In some cases, the rear harness 2922 may include indentations or features that allow the rear harness 2922 to flex or conform to the user's head (e.g., above or below the user's occipital lobe). In some cases, the rear harness 2922 may engage with or be coupled to a housing at the rear 2906 of the HMD 2900 using one or more ball joints.

[0152] As discussed further herein, the HMD 2900 may include a flexible printed circuit board assembly (FPCBA), one or more wires coupled together, and / or a flexible printed circuit (FPC) that communicatively couples components of the front portion 2904 with components of the rear portion 2906. In some cases, the FPC may be routed through a jacket and / or sleeve 2912 to hide the FPC and provide a clean aesthetic to the HMD 2900. In some cases, the FPC may be coupled to portions of the top member 2902 to route the FPC between the front portion 2904 and the rear portion 2906. Additionally, the FPC may include a service loop that provides slack for the FPC, thereby allowing the FPC to extend and retract as the HMD 2900 is tightened and loosened from the user (e.g., via actuating the first actuator 2914 and the second actuator 2920). In some cases, the FPC may include an "S-shaped" service loop that routes within the sleeve 2912 to provide slack for the FPC when extended and retracted.

[0153] Although the HMD 2900 (or other HMDs discussed herein) is shown and described as including a first actuator 2914 and a second actuator 2920 that engage the top member 2902 and the first and second side members 2916 and 2918, respectively, in some cases, the HMD 2900 may include a single actuator that tightens and loosens the HMD 2900 to and from the user. For example, in some cases, the top member 2902, the first side member 2916, and the second side member 2918 may engage a single actuator located at the rear 2906 of the HMD 2900. In this sense, the functionality of the first actuator 2914 and the second actuator 2920 may be combined into a single actuator. For example, actuating (e.g., rotating) the actuator in a first direction may tighten the HMD 2900, while actuating (e.g., rotating) the actuator in a second direction may loosen the HMD 2900. To enable such manipulation, in some cases, the top member 2902, the first side member 2916, and the second side member 2918 may include slots that engage with a single actuator. In some cases, the top member 2902 may engage with a first portion (e.g., a first gear) of the single actuator, while the first side member 2916 and the second side member 2918 may engage with a second portion (e.g., a second gear) of the single actuator. The first and second portions may be operably coupled to a single actuator such that actuating the single actuator tightens and loosens the HMD 2900 from the user's head in multiple directions (e.g., vertically and horizontally). In some cases, the first and second portions (or other portions of a single actuator) may each include respective ratios (e.g., gear ratios) for tightening the top member 2902, the first side member 2916, and the second side member 2918. For example, the top member 2902, the first side member 2916, and / or the second side member 2918 may extend and / or retract at different rates.

[0154] Additionally or alternatively, the HMD 2900 (or other HMDs discussed herein) may include self-fastening features that fasten the HMD 2900 to the user. For example, one or more of the top member 2902, the first side member 2916, and / or the second side member 2918 may be operably coupled to one or more motors within the HMD 2900. Actuating the one or more motors may fasten the top member 2902, the first side member 2916, and / or the second side member 2918. In some cases, the HMD 2900 may include sensors disposed throughout the HMD 2900 (e.g., on the display 2910, on the rear harness 2922, etc.) that sense forces exerted by the HMD 2900 on the user. If the force is too low, which may indicate the HMD 2900 is not securely fastened to the user, the one or more motors may tighten one or more of the top member 2902, the first side member 2916, and / or the second side member 2918 until the HMD 2900 is securely coupled to the user. Alternatively, if the sensors determine that the HMD 2900 is too tight, the one or more motors can loosen one or more of the top member 2902, the first side member 2916, and / or the second side member 2918. In some cases, the self-fastening feature may be used in combination with a user manually (or physically) manipulating the first actuator 2914 and / or the second actuator 2920.

[0155] In some cases, the HMD 2900 (or another communicatively coupled device) may store a user's head size characteristics or fastening preferences in association with a user profile in order to automatically fasten the HMD 2900 to the user when worn. Such characteristics may also learn user behavior to determine preferences associated with the user wearing the HMD 2900.

[0156] Additionally, in some cases, the HMD 2900 may be communicatively coupled to a mobile device to electronically tighten and loosen the HMD 2900. For example, the HMD 2900 may include a motor operable through an application on the mobile device to tighten and loosen the HMD 2900. Such a motor may also, in some cases, be operable through one or more buttons located on the HMD 2900.

[0157] The HMD 2900 may also include one or more loudspeakers disposed on the first side member 2916 and / or the second side member 2918 for outputting sound to the user.

[0158] 30 illustrates a first actuator 2914 and a second actuator 2920 disposed at or adjacent to a rear 2906 of the HMD 2900. In some cases, the first actuator 2914 and / or the second actuator 2920 may be coupled to or disposed on a housing 3000 of the HMD 2900. In some cases, the first actuator 2914 may be disposed above (in the Y direction) the second actuator 2920. Within the housing 3000, the first actuator 2914 can engage with the top member 2902, and the second actuator 2920 can engage with a first side member 2916 and / or a second side member 2918. For example, the first actuator 2914 and / or the second actuator 2920 may include teeth, gears (e.g., spurs), pinions, tabs, or sprockets that engage with slots in the top member 2902, the first side member 2916, and the second side member 2918, respectively, within the housing 3000. Thus, the first actuator 2914 may be mateable with the top member 2902 at different positions along the length of the top member 2902, causing the top member 2902 to extend various lengths from the housing 3000. In some cases, the first actuator 2914 and the top member 2902 may adjust the HMD 2900 vertically on the user or relative to the user's eyes.

[0159] Additionally, the second actuator 2920 may be mateable with the first and second side members 2916, 2918 at different positions along the length of the first and second side members 2916, 2918, respectively, and may extend the first and second side members 2916, 2918, respectively, at different lengths from the housing 3000 (similarly shown and discussed with respect to FIG. 7). In some cases, the housing 3000 may include wings, arms, or extensions for receiving the first and second side members 2916, 2918, respectively.

[0160] In some cases, the housing 3000 may contain components of the HMD 2900, such as various input / output devices, a battery, memory, a processor, a network interface, etc. To communicatively couple the components with the display 2910 or other components located on the front 2904 (e.g., an antenna) of the HMD 2900, the HMD 2900 may include an FPC 3002. As discussed above, the FPC 3002 may route between the front 2904 and rear 2906 of the HMD 2900. In some cases, at least a portion of the FPC 3002 may be coupled (e.g., adhesively) to at least a portion of the top member 2902. For example, the FPC 3002 may be coupled to an inner surface of the top member 2902 proximate a first end 2908 of the top member 2902 or proximate the front 2904 of the HMD 2900. Additionally or alternatively, in some cases, the FPC 3002 may be disposed within a jacket, casing, or other sheath that wraps around (or a portion of) the upper member 2902 to secure the FPC 3002 to the upper member 2902.

[0161] FIG. 31 illustrates a front view of the HMD 2900, showing that the top member 2902 extends from the front 2904 into the sleeve 2912, and that the pad 3004 is positioned below and / or coupled to the sleeve 2912.

[0162] 32 shows a rear view of the HMD 2900. In some cases, the first actuator 2914 and / or the second actuator 2920 may be disposed along a longitudinal axis 3200 (or plane) extending through the center of the HMD 2900. In doing so, in some cases, the first actuator 2914 and / or the second actuator 2920 may be disposed at the center (X direction) of the HMD 2900.

[0163] 33 illustrates a top view of the HMD 2900 showing that the upper member 2902 extends from the front 2904 to the rear 2906 and through the sleeve 2912 to engage the first actuator 2914. A rear harness 2922 extends from the rear 2906 of the housing 3000, etc., and is shown to engage the user's head when worn.

[0164] 34 shows a bottom view of the HMD 2900 showing that the top member 2902 extends from the front 2904 to the rear 2906 and through the sleeve 2912 to engage the first actuator 2914. A rear harness 2922 extends from the rear 2906 of the housing 3000, etc. and is shown to engage the user's head when worn.

[0165] 35 and 36 illustrate first and second side views of the HMD 2900. As discussed above, the top member 2902 can extend through the sleeve 2912. For example, in some cases, the top member 2902 may extend into a first end 3500 of the sleeve 2912 and exit at a second end 3502 of the sleeve 2912. Similarly, as discussed above, the FPC 3002 may be coupled along a portion of the top member 2902, such as adjacent the front 2904 of the HMD 2900 and / or the back 2906 of the HMD 2900. Additionally or alternatively, a jacket may be disposed over the FPC 3002 and / or top member 2902 to abut or couple the top member 2902 and the FPC 3002. For example, the jacket may conceal the FPC 3002. At positions in between, the FPC 3002 may snake within the sleeve 2912 to provide a service loop or slack for the FPC 3002. In some cases, the FPC 3002 may be coupled to the top member 2902 at a position outside of the sleeve 2912 and may snake back and forth (e.g., in the Z direction) within the sleeve 2912 to provide slack for the FPC 3002 to extend and retract.

[0166] Also, as shown in FIGS. 35 and 36 , the rear harness 2922 may extend from the housing 3000 to point the back of the head when the HMD 2900 is worn. The rear harness 2922 may include components to conform to individual head shapes. For example, a spring or other biasing member may couple the rear harness 2922 and the housing 3000 to provide pressure against the back of the head. This pressure may cause the rear harness 2922 to conform to the user to provide a secure and comfortable fit. Additionally or alternatively, the rear harness 2922 may include cutouts (e.g., slits, oval shapes, etc.) or void spots that allow the rear harness 2922 to flex around one or more axes. For example, depending on the location and / or shape of the cutouts, the rear harness 2922 may flex at specific locations around one or more axes. This bend may allow the rear harness 2922 to fit over the back of the user's head, reducing pressure points and / or distributing pressure evenly across the back of the head. In such cases, the rear harness 2922 may bend toward the front of the HMD 2900, toward the back 2906 of the HMD 2900, toward one or more sides of the HMD 2900, and / or toward the top of the HMD 2900.

[0167] Different materials and / or thicknesses in portions of the rear harness 2922 can also affect the flex of the rear harness 2922. For example, different portions of the rear harness 2922 may be thicker and other portions may be thinner. This varying thickness can affect the portions or locations of the rear harness 2922 that are configured to flex to conform to the user's head. The multi-axis flex of the rear harness 2922 can provide passive suspension for the back of the head.

[0168] Additionally, in some cases, the rear harness 2922 may include a pad 3004 that rests on the user's head. In this sense, in some cases, the pad 3004 may be integrally formed with the rear harness 2922. However, in some cases, the pad 3004 may comprise a separate component. In some cases, the rear harness 2922 and / or the pad 3004 may be coupled to a sleeve 2912, which may position the sleeve 2912 on the HMD 2900 or serve to position the sleeve 2912 on the HMD 2900 (e.g., prevent the sleeve 2912 from being repositioned and / or moved).

[0169] In some cases, the first actuator 2914 and / or the second actuator 2920 may be located on a portion of the housing 3000 that extends toward the front 2904 of the HMD 2900. In some cases, the first actuator 2914 may be positioned closer to the front 2904 of the HMD 2900 than the second actuator 2920 (in the Z direction). In some cases, this may assist in coupling the top member 2902 to the first actuator 2914 and / or providing a comfortable fit and feel of the HMD 2900 when worn. That is, the curvature of the top member 2902 may be continued into the housing 3000 by positioning the first actuator 2914 and / or the second actuator 2920 as shown. Additionally, positioning the first actuator 2914 and / or the second actuator 2920 on an inwardly sloping portion may assist a user in manipulating the first actuator 2914 and / or the second actuator 2920. In some cases, the second actuator 2920 may be substantially horizontally aligned with the first side member 2916 and the second side member 2918. As discussed above, the first actuator 2914 and / or the second actuator 2920 may be angled, positioned, and / or include corresponding shapes and / or features to engage with the top member 2902 and the first and second side members 2916 and 2918, respectively.

[0170] FIG. 37 shows the top member 2902, sleeve 2912, and FPC 3002. The sleeve 2912 is shown as transparent to show the routing of the FPC 3002 within the sleeve 2912. In some cases, the FPC 3002 may be coupled to the underside of the top member 2902. Additionally, as discussed above, in some cases, the top member 2902 and / or the FPC 3002 may be disposed with a jacket 3700. The jacket 3700 may be wrapped over, around, and / or wrapped around the top member 2902 and / or the FPC 3002 to couple the top member 2902 and / or the FPC 3002 together. The jacket 3700 may extend along a portion of the length of the top member 2902 and / or the FPC 3002. In some cases, the jacket 3700 may extend into the first end 3500 of the sleeve 2912.

[0171] The jacket 3700 may include an end 3702 where the FPC 3002 exits the jacket 3700 and loops back in a direction toward the front 2904 of the HMD 2900. The FPC 3002 may include a service loop 3704 disposed within a sleeve 2912 and providing slack that allows the FPC 3002 to extend and retract as the upper member 2902 extends and retracts. In some cases, the service loop 3704 may remain within the sleeve 2912 as the upper member 2902 extends and / or retracts. For example, in some cases, the jacket 3700 may be coupled to the sleeve 2912. After snaking through the sleeve 2912, the FPC 3002 may exit the sleeve 2912 at a second end 3502, at which point the FPC 3002 may be coupled to the upper member 2902 and extend into the housing 3000.

[0172] To further illustrate, a first end of the FPC 3002 may be coupled adjacent to the first end 2908 of the top member 2902. The FPC 3002 can then be coupled to the top member 2902 and / or extend through the jacket 3700. In some cases, the FPC 3002 may exit the jacket 3700 at an end 3702 of the jacket 3700, at which point the FPC 3002 may extend in a direction toward the front 2904 of the HMD 2900 before looping back and extending in a direction toward the rear 2906 of the HMD 2900 (i.e., thereby providing a service loop 3704). The FPC 3002 may then exit the sleeve 2912, and a second end of the FPC 3002 may be communicatively coupled to a component within the housing 3000. In some cases, rather than the jacket 3700 including ends, the jacket 3700 may include a slit or slot through which the FPC 3002 exits (and / or re-enters) to create a service loop 3704.

[0173] In some cases, the portion of the FPC 3002 exiting the top member 2902 and / or the second end 3502 may also be disposed in a jacket or other sheath to further provide an aesthetic appearance to the HMD 2900. Additionally, while the above discussion is in terms of the sleeve 2912 being a separate component or feature as the housing 3000, in some cases the sleeve 2912 may be integrally formed with the housing 3000.

[0174] FIG. 38 illustrates a cross-sectional view of a portion of the HMD 2900 taken along line AA in FIG. 34. As shown, the FPC 3002 may loop within a sleeve 2912 to provide a service loop 3704. The sleeve 2912 may include an area or chamber for the FPC 3002 to loop back toward the second end 3502 of the sleeve.

[0175] FIG. 39 illustrates an HMD 3900 having a single knob 3902 disposed at the rear of the HMD 3900. The single knob 3902 may engage one or more members to tighten and loosen the HMD 3900 to a user. In some cases, one or more members may engage with the single knob 3902 within the rear housing of the HMD 3900. For example, an upper member may extend through an upper sleeve 3904 and engage with the single knob 3902. Side members may extend through side sleeves 3906 and 3908 and engage with the single knob 3902. In such cases, a user may manipulate the single knob 3902 to control the tightening and loosening of the upper and side members (e.g., via the single knob 3902 engaging slots in the upper and side members, respectively). In some cases, the side members may overlap within the rear housing to allow the side members to tighten and loosen (or extend and retract). The upper member may spool, coil, or extend within another portion of the housing, allowing the upper member to tighten and loosen (or extend and retract).

[0176] In some cases, the single knob 3902 may be considered a dual concentric knob that includes multiple knobs or actuators for tightening and loosening the top and side members, respectively. For example, the single knob 3902 may include multiple knobs that are nested within one another or integrated with one another. For example, FIG. 39 shows that the single knob 3902 may include a first knob 3910 and a second knob 3912. In some cases, the first knob 3910 may be positioned in front of the second knob 3912. As shown, in some cases, the second knob 3912 may include a larger diameter than the first knob 3910. In some cases, the first knob 3910 and the second knob 3912 may be concentric.

[0177] The first knob 3910 and the second knob 3912 may be independently actuable in multiple directions to tighten and loosen the HMD 3900. For example, the first knob 3910 engages with an upper member and can be rotated in a first direction (e.g., clockwise) to tighten the HMD 3900 and in a second direction (e.g., counterclockwise) to loosen the HMD 3900. The second knob 3912 engages with a side member and can be rotated in a first direction (e.g., clockwise) to tighten the HMD 3900 and in a second direction (e.g., counterclockwise) to loosen the HMD 3900. In some cases, the first knob 3910 and the second knob 3912 may engage with upper and side members within the rear housing, the upper sleeve 3904, and / or the side sleeves 3906 and 3908, respectively.

[0178] FIG. 40 shows a top view of the HMD 3900 of FIG. 39. As described above, the side sleeves 3906 and 3908 may route the side members toward the rear of the HMD 3900 to engage with the single knob 3902. In some cases, the side members can engage with one of the first knob 3910 or the second knob 3912. Similarly, the top sleeve 3904 may route the top member toward the rear of the HMD 3900 to engage with the single knob 3902 or one of the first knob 3910 or the second knob 3912. As shown, the first knob 3910 may be located in front of the second knob 3912 (e.g., the second knob 3912 may be located near the HMD 3900 or rear housing), and the first knob 3910 and the second knob 3912 may be concentric.

[0179] 41 illustrates example components of an HMD 4100, such as a VR headset, according to an embodiment of the present disclosure. The HMD 4100 may be equivalent to, correspond to, or similar to the HMD 100, HMD 1400, HMD 1600, HMD 2200, HMD 2300, and / or HMD 2900 referenced herein, and thus the components of the HMD 4100 shown in FIG. 29 may be implemented in the HMD 100, HMD 1400, HMD 1600, HMD 2200, HMD 2300, HMD 2900, and / or HMD 3900.

[0180] In some cases, the HMD 4100 may be implemented as a standalone device worn by a user (e.g., on the user's head), may be head-mountable, for example, by allowing the user to secure the HMD 4100 to their head, and may be adjustable to accommodate different users. In some embodiments, the HMD 4100 includes a VR or AR headset that includes a near-eye or near-to-eye display.

[0181] The HMD 4100 may include one or more processors 4102 and memory 4104 (e.g., computer-readable media). In some implementations, the processor 4102 may include a central processing unit (CPU), a graphics processing unit (GPU), both a CPU and a GPU, a microprocessor, a digital signal processor, or other processing units or components known in the art. Alternatively or additionally, the functionality described herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on a chip (SOCs), complex programmable logic devices (CPLDs), etc. In addition, each processor 4102 may have its own local memory, which may also store program modules, program data, and / or one or more operating systems.

[0182] The memory 4104 may include volatile and nonvolatile memory, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Such memory includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVDs) or other optical memory, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, RAID storage systems, or any other medium that can be used to store desired information and that can be accessed by a computing device. The memory 4104 may be implemented as a computer-readable storage medium (“CRSM”), which may be any available physical medium that is accessible by the processor 4102 to execute instructions stored on the memory 4104. In one basic implementation, the CRSM may include random access memory (“RAM”) and flash memory. In other implementations, the CRSM may include, but is not limited to, read-only memory ("ROM"), electrically erasable programmable read-only memory ("EEPROM"), or any other tangible medium that can be used to store desired information and that can be accessed by the processor 4102.

[0183] In general, the HMD 4100 may include logic (e.g., software, hardware, and / or firmware, etc.) configured to implement the techniques, functions, and / or operations described herein. The memory 4104 is shown as including various modules, such as instructions, data stores, etc., which may be configured to execute on the processor 4102 to perform the techniques, functions, and / or operations described herein. While several exemplary functional modules are shown as stored in the memory 4104 and executable on the processor 4102, the same functionality may alternatively be implemented in hardware, firmware, or as a system-on-chip (SOC) and / or other logic.

[0184] The operating system module 4106 may be configured to manage the hardware coupled within the HMD 4100 for the convenience of the other modules. Additionally, in some instances, the HMD 4100 may include one or more applications 4108 stored in the memory 4104 or otherwise accessible to the HMD 4100. In some cases, the applications 4108 include a game application 4110. However, the HMD 4100 may include any number or type of applications. The game application 4110 may be configured to initiate gameplay of a video-based interactive game (e.g., a VR game) playable by a user and to output frames to be rendered on a display panel of the HMD 4100.

[0185] The HMD 4100 includes input devices 4112 and output devices 4114. The input devices 4112 may include control buttons. In some implementations, one or more microphones may function as input devices 4112 for receiving audio input, such as a user's voice. In some implementations, one or more cameras or other types of sensors (e.g., inertial measurement units (IMUs)) may function as input devices 4112 for receiving gestural input, such as the user's hand and / or head movements. In some embodiments, additional input devices 4112 may be provided in the form of a keyboard, keypad, mouse, touchscreen, joystick, etc. In other embodiments, the HMD 4100 may omit a keyboard, keypad, or other similar form of mechanical input. Instead, the HMD 4100 may be implemented with a relatively simple form of input device 4112, a network interface (wireless or wired based), a power source, and processing / memory capabilities. For example, a limited set of one or more input components (e.g., dedicated buttons for initiating configuration, powering on / off, etc.) may be used, and the HMD 4100 may thereafter be used. In one implementation, the input device 4112 may include controls such as basic volume control buttons for increasing / decreasing the volume, as well as power and reset buttons.

[0186] The output device(s) 4114 may include an electronic display 4116, which may be the same as or similar to the display 108 described above. The output device(s) 4114 may further include, without limitation, light emitting elements (e.g., LEDs), vibrators for producing tactile sensations, speakers (e.g., headphones), etc. For example, a light emitting element (e.g., LED) to indicate a status such as when the power is on.

[0187] The HMD 4100 may further include a wireless unit 4118 coupled to one or more antennas 4120 to facilitate wireless connection to a network. The wireless unit 4118 may implement one or more of a variety of wireless technologies, such as Wi-Fi, Bluetooth, radio frequency (RF), etc. It should be understood, however, that the HMD 4100 may further include a physical port for communicating with a network, connected peripheral devices (including PCs, game consoles, etc.), or other wireless networks, and for facilitating a wired connection to a plug-in network device.

[0188] The HMD 4100 may further include an optical subsystem 4122 that directs light from the electronic display 4116 to the user's eyes using one or more optical elements. The optical subsystem 4122 may include various types and combinations of different optical elements, including, but not limited to, apertures, lenses (e.g., Fresnel lenses, convex lenses, concave lenses, etc.), filters, etc. In some embodiments, one or more optical elements in the optical subsystem 4122 may have one or more coatings, such as an anti-reflective coating. The magnification of image light by the optical subsystem 4122 may allow the electronic display 4116 to be physically smaller, lighter, and consume less power than larger displays. Additionally, the magnification of image light may increase the field of view (FOV) of the displayed content (e.g., images). For example, the FOV of the displayed content may be such that the displayed content is presented using nearly all (e.g., 120-150 degrees diagonal), or in some cases all, of the user's FOV. AR applications may have a narrower FOV (e.g., an FOV of approximately 40 degrees). The optical subsystem 4122 may be designed to correct one or more optical errors, such as, but not limited to, barrel distortion, pincushion distortion, longitudinal chromatic aberration, transverse aberration, spherical aberration, field curvature, astigmatism, etc. In some embodiments, content provided to the electronic display 4116 for display is pre-distorted, and the optical subsystem 4122 corrects that distortion when receiving image light from the electronic display 4116 generated based on the content.

[0189] The HMD 4100 may further include one or more sensors 4124, such as sensors used to generate movement, position, and orientation data. These sensors 4124 may be or include gyroscopes, accelerometers, magnetometers, video cameras, color sensors, or other movement, position, and orientation sensors. The sensors 4124 may also include a sub-portion of sensors, such as a set of active or passive markers that can be viewed externally by a camera or color sensor to generate movement, position, and orientation data. For example, a VR headset may include multiple markers on its exterior, such as reflectors or lights (e.g., infrared or visible light), that, when viewed by an external camera or illuminated with light (e.g., infrared or visible light), may provide one or more reference points for interpretation by software to generate movement, position, and orientation data. The HMD 4100 may include a light sensor that is sensitive to light (e.g., infrared or visible light) projected or scattered by a base station in the HMD 4100's environment.

[0190] In one example, the sensors 4124 may include an inertial measurement unit (IMU) 4126. The IMU 4126 may be an electronic device that generates calibration data based on measurement signals received from accelerometers, gyroscopes, magnetometers, and / or other sensors suitable for detecting motion, correcting errors associated with the IMU 4126, or some combination thereof. Based on the measurement signals, such motion-based sensors, such as the IMU 4126, may generate calibration data that indicates an estimated position of the HMD 4100 relative to an initial position of the HMD 4100. For example, multiple accelerometers may measure translational motion (forward / backward, up / down, left / right), and multiple gyroscopes may measure rotational motion (e.g., pitch, yaw, roll). The IMU 4126 may, for example, rapidly sample the measurement signals and calculate an estimated position of the HMD 4100 from the sampled data. For example, the IMU 4126 may integrate measurement signals received from an accelerometer over time to estimate a velocity vector and integrate the velocity vector over time to determine an estimated position of a reference point on the HMD 4100. A reference point is a point that can be used to describe the position of the HMD 4100. Although a reference point may generally be defined as a point in space, in various embodiments, the reference point is defined as a point within the HMD 4100 (e.g., the center of the IMU 4126). Alternatively, the IMU 4126 provides sampled measurement signals to an external console (or other computing device), which determines the calibration data.

[0191] As mentioned, in some embodiments, the sensor 4124 may include a light sensor that is sensitive to light emitted by a base station in the environment of the HMD 4100 for purposes of tracking the position and / or orientation, posture, etc. of the HMD 4100 in 3D space. Calculation of the position and / or orientation may be based on timing characteristics of the light pulses and the presence or absence of light detected by the sensor 4124.

[0192] The HMD 4100 may further include an eye tracking module 4128. A camera or other optical sensor internal to the HMD 4100 may capture image information of the user's eyes, and the eye tracking module 4128 may use the captured information to determine the interpupillary distance, the three-dimensional (3D) position of each eye relative to the HMD 4100, including the magnitude of twist and rotation (i.e., roll, pitch, and yaw) and the gaze direction of each eye (e.g., for distortion adjustment purposes). In one example, infrared light is emitted within the HMD 4100 and reflected from each eye. The reflected light is received or detected by a camera of the HMD 4100 and analyzed to extract eye rotation from changes in the infrared light reflected by each eye. Many methods for tracking the eyes of the user 102 may be used by the eye tracking module 4128. In some cases, the eye tracking module 4128 may track up to six degrees of freedom (i.e., 3D position, roll, pitch, and yaw) of each eye, and at least a subset of the tracked quantities may be combined from the user's two eyes to estimate a point of gaze (i.e., a 3D location or position within the virtual scene at which the user is viewing). For example, the eye tracking module 4128 may integrate information from past measurements, measurements identifying the position of the user's head, and 3D information describing the scene presented by the electronic display 4116. Information about the position and orientation of the user's eyes may be used to determine a point of gaze within the virtual scene presented by the HMD 4100 at which the user is viewing.

[0193] The HMD 4100 may include a head tracking module 4130. The head tracking module 4130 may utilize one or more of the sensors 4124, as described above, to track head movement, including rotation of the user's head. For example, the head tracking module 4130 may track up to six degrees of freedom (i.e., 3D position, roll, pitch, and yaw) of the HMD 4100. These calculations may be performed for each frame in a series of frames, so that the application 4108 can determine how to render a scene in the next frame depending on the head position and orientation. In some embodiments, the head tracking module 4130 is configured to predict the future position and / or orientation of the HMD 4100 based on current and / or past data. This is because the application is required to render frames before the user actually sees the light (and therefore the image) on the electronic display 4116. During execution, the head tracking module 4130 of the HMD 4100 may generate data regarding the position and orientation of the HMD 4100 that is provided to the application to inform the application regarding how to render the next frame in a sequence of frames according to the user's head position / orientation. This allows images to be rendered within the image area on the electronic display 4116 in a manner that leads the user to believe they are looking around a virtual environment containing objects (both stationary and moving), which move within the scene in a predictable manner as the user's head moves. Thus, frames can be rendered based on this future prediction of head position and / or orientation made at an earlier point in time, such as approximately 25-30 milliseconds (ms) before rendering the frame. The rotation data provided by the head tracking module 4130 may be used to determine both the direction of rotation of the HMD 4100 and the amount of rotation of the HMD 4100, in any suitable units of measure. For example, the direction of rotation may be output simply in terms of positive or negative horizontal and positive or negative vertical, corresponding to left, right, up, and down. The amount of rotation may be in degrees, radians, etc.The angular velocity may be calculated to determine the rotational speed of the HMD4100.

[0194] Although various examples and embodiments are described individually herein, the examples and embodiments can be combined, rearranged, and modified to arrive at other variations within the scope of the present disclosure. Moreover, while the present subject matter has been described in language specific to structural features and / or methodological acts, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described. Rather, the specific features and acts are disclosed as exemplary forms of implementing the claims. The inventions described in the original claims of this application are set forth below. [1] A head-mounted display, a front portion including a display; a rear portion including a housing and a rear actuator coupled to the housing; a sleeve coupled to the housing and extending from the housing in a direction toward the front of the head mounted display, the sleeve including an opening and an upper actuator; a first member extending between the front portion of the head mounted display and the rear portion of the head mounted display, a first end coupled to a top of the display; a second end portion passing through the opening and disposed within the sleeve; a first member comprising one or more slots extending along a portion of the length of the first member and operably engaging the upper actuator; a second member coupled to a first side of the display and extending between the front of the head mounted display and the rear of the head mounted display, the second member including one or more slots extending along a portion of a length of the second member that operably engage the rear actuator; and a third member coupled to a second side of the display and extending between the front of the head-mounted display and the rear of the head-mounted display, the third member including one or more slots extending along a portion of the length of the third member that operably engage with the rear actuator. [2] at least one of the upper actuator or the rear actuator includes a rotatable knob having a gear; the gear of the upper actuator is operable to engage the one or more slots extending along the portion of the length of the first member; the gear of the rear actuator is operable to engage the one or more slots extending along the portion of the length of the second member; The head-mounted display of [1], wherein the gear of the rear actuator is operable to engage with the one or more slots extending along the portion of the length of the third member. [3] actuating the upper actuator in a first direction increases a gap distance between the front portion of the head mounted display and the rear portion of the head mounted display; actuating the upper actuator in a second direction reduces the gap distance between the front portion of the head mounted display and the rear portion of the head mounted display; actuating the rear actuator in a third direction increases the gap distance between the front portion of the head mounted display and the rear portion of the head mounted display; The head-mounted display described in [1], wherein actuating the rear actuator in a fourth direction reduces the gap distance between the front of the head-mounted display and the rear of the head-mounted display. [4] the second member pivotally coupled to the first side of the display; The head-mounted display according to [1], wherein the third member is pivotally connected to the second side of the display. [5] The head-mounted display described in [1] further comprises a harness pivotally coupled to the housing. [6] The harness extends from the housing in a direction toward the front portion, and the harness a frame having a first side and a second side; a strut including a first end and a second end, the first end of the strut pivotally coupled to the housing via a first hinge and the second end of the strut pivotally coupled to the first side of the frame via a second hinge; a first biasing member disposed between the first end of the strut and the housing; a second biasing member disposed between the second end of the strut and the first side of the frame; [5] The head-mounted display described in [5], including a pad coupled to the second side of the frame. [7] The head-mounted display described in [1] further comprises a flexible printed circuit (FPC) extending from the front to the rear, the FPC being positioned through the sleeve, and the FPC including a service loop positioned inside the sleeve. [8] A head-mounted display, The front and The rear and a first member extending between the front and rear portions, the first member having a length adjustable via actuation of a first rotatable actuator; a second member extending between the front and rear portions, the second member having a length adjustable via actuation of a second rotatable actuator; a third member extending between the front and rear portions, the third member having a length adjustable via actuation of the second rotatable actuator. [9] the first member is disposed along an upper portion of the head mounted display, the second member is disposed along a first side surface of the head mounted display, The head-mounted display described in [8], wherein the third member is arranged along a second side of the head-mounted display, and the second side is opposite the first side.

[10] the first member includes a first adjustable element extending along a portion of the length of the first member, the first adjustable element operable to engage the first rotatable actuator; the second member includes a second adjustable element extending along a portion of the length of the second member, the second adjustable element being operable to engage the second rotatable actuator; or [8] The head-mounted display described in [8], wherein the third member includes at least one of a third adjustable element extending along a portion of the length of the third member, and the third adjustable element is operable to engage with the second rotatable actuator.

[11]

[10] The head-mounted display described in

[10] , wherein at least one of the first adjustable element, the second adjustable element, or the third adjustable element includes at least one of a slot, a notch, a tab, a slit, or a tooth.

[12] [8] The head-mounted display described in [8], further comprising a sleeve extending from the rear of the head-mounted display, the sleeve including a channel configured to receive the first member, the first member telescopically extending from the sleeve or retracting into the sleeve via actuation of the first rotatable actuator.

[13]

[12] A head-mounted display as described in

[12] , wherein the first rotatable actuator is coupled to the sleeve and extends through at least a portion of the sleeve to engage with the first member.

[14] the front portion of the head mounted display includes a display;

[12] The head-mounted display described in

[12] , wherein the first member includes a first end coupled to an upper portion of the display and a second end disposed within the sleeve.

[15] the second member includes a first end pivotally coupled to a first side of the display and a second end operably coupled to the second rotatable actuator;

[14] A head-mounted display as described in

[14] , wherein the third member includes a first end pivotally coupled to a second side of the display and a second end operably coupled to the second rotatable actuator.

[16] The head-mounted display described in [8] further comprises a pad coupled to the first member.

[17] a strut extending from the rear portion, the strut having a first end and a second end pivotally coupled to the rear portion; The head-mounted display described in [8] further comprises a harness pivotally coupled to the second end of the strut.

[18] a first biasing member engages the first end of the strut, the first biasing member biasing the strut in a forward direction; A head-mounted display as described in

[17] , wherein a second biasing member engages with the second end of the strut and the harness, and the second biasing member biases the harness in a direction toward the top or bottom of the head-mounted display.

[19] a sleeve including a first end and a second end; [8] The head-mounted display described in [8] further comprising: a flexible printed circuit (FPC) extending from the front to the rear, the FPC being positioned through the first end and the second end of the sleeve and including a service loop positioned inside the sleeve between the first end and the second end.

[20] A wearable display, The front and The rear and a first actuator; a second actuator; a first member extending from the front portion toward the rear portion and engaging the first actuator; a second member extending from the front portion toward the rear portion and engaging the second actuator; a third member extending from the front portion toward the rear portion and engaging with the second actuator.

[21] the first actuator is engageable with the first member along a portion of the length of the first member; the second actuator is engageable with the second member along a portion of the length of the second member; The wearable display of

[20] , wherein the second actuator is engageable with the third member along a portion of the length of the third member.

[22] the first actuator is operable to engage the first member at different locations along a length of the first member; the second actuator is operable to engage the second member at different locations along a length of the second member;

[20] The wearable display described in

[20] , wherein the second actuator is operable to engage the second member at different positions along the length of the third member.

[23] the wearable display is configured to increase a gap distance between the front portion and the rear portion by actuating the first actuator in a first direction and actuating the second actuator in a second direction; The wearable display described in

[20] , wherein the wearable display is configured to reduce the gap distance between the front and rear portions by actuating the first actuator in a third direction and actuating the second actuator in a fourth direction.

[24] the first actuator comprising a first rotatable knob; the second actuator comprises a second rotatable knob; the first member includes at least one of a slot, a notch, a tab, or a tooth that operably engages with the first rotatable knob; the second member includes at least one of a slot, a notch, a tab, or a tooth that operably engages with the second rotatable knob; or

[20] The wearable display described in

[20] , wherein the third member includes at least one of a slot, a notch, a tab, or a tooth that operably engages with the second rotatable knob.

[25] the first actuator is located above the wearable display; The wearable display of

[20] , wherein the second actuator is located at the rear of the wearable display.

[26]

[20] A wearable display as described in

[20] , further comprising a sleeve extending from the rear of the wearable display, the sleeve including a channel, and the first member engaging with the first actuator within the channel.

[27] a housing disposed at the rear; a strut pivotally coupled to the housing and extending from the housing;

[20] The wearable display described in

[20] , further comprising a support pivotally connected to the strut, the support configured to engage with the user's head when the wearable display is worn by the user.

[28] a first spring disposed at a first end of the strut, the first spring biasing the strut in a first direction; or A wearable display as described in

[27] , further comprising at least one of: a second spring disposed at a second end of the strut, the second spring biasing the support in a second direction different from the first direction.

[29] further comprising a wire routing assembly configured to transition between an extended state and a retracted state, the wire routing assembly comprising: a housing having a first end, a second end, and a channel extending between the first end and the second end of the housing, the second end of the housing being coupled to the rear of the wearable display; a slide at least partially disposed within the channel, the slide having a first end and a second end, the first end of the slide extending from the first end of the housing and coupled to the front portion, the slide configured to telescopically extend from or retract into the housing to transition the wire routing assembly between the extended state and the retracted state;

[20] The wearable display described in

[20] , comprising: a wire extending from the first end of the slide to the second end of the housing.

Claims

1. A head mounted display, a front portion including a display having a top, a bottom, a first side, and a second side opposite the first side; a rear section including a rear actuator; a first side member pivotally coupled to the first side of the display at a first end of the first side member and extending between the front of the head mounted display and the rear of the head mounted display, the first side member including a second end operably engaged with the rear actuator to adjust a length of the first side member; a second side member pivotally coupled to the second side of the display at a first end of the second side member and extending between the front of the head mounted display and the rear of the head mounted display, the second side member including a second end operably engaged with the rear actuator to adjust a length of the second side member; A harness located at the rear, a first portion configured to engage over an occipital lobe of a user's head, the first portion comprising one or more channels through which the first and second side members extend; a second portion configured to engage beneath the occipital lobe of the user's head; a gap between the first portion and the second portion to provide bending about one or more axes; the rear actuator is disposed on the first portion of the harness; Head-mounted display.

2. the rear actuator comprises a rotatable knob having a gear; the gear of the rear actuator is operable to engage one or more slots extending along a portion of the length of the first side member; The head mounted display of claim 1 , wherein the gear of the rear actuator is operable to engage one or more slots extending along a portion of the length of the second side member.

3. actuating the rear actuator in a first direction increases a gap distance between the front of the head mounted display and the rear of the head mounted display; The head mounted display of claim 1 , wherein actuating the rear actuator in a second direction reduces the gap distance between the front of the head mounted display and the rear of the head mounted display.

4. The head mounted display of claim 1 , wherein the rear portion of the head mounted display further includes a housing, the rear actuator being coupled to the housing.

5. The head mounted display of claim 1 , further comprising a flexible printed circuit (FPC) extending from the front portion to the rear portion.

6. A head mounted display, a front portion including a display having a top, a bottom, a first side, and a second side opposite the first side; a rear portion including a rotatable actuator; a first side member extending between the front and rear portions, the first side member including a first end pivotally coupled to the first side of the display and a second end operatively coupled to the rotatable actuator, the first side member being adjustable in length via actuation of the rotatable actuator; a second side member extending between the front and rear portions, the second side member including a first end pivotally coupled to the second side of the display and a second end operably coupled to the rotatable actuator, the second side member being adjustable in length via the actuation of the rotatable actuator; A harness located at the rear, a first portion configured to engage over an occipital lobe of a user's head, the first portion comprising one or more channels through which the first and second side members extend; a second portion configured to engage beneath the occipital lobe of the user's head; a gap between the first portion and the second portion to provide bending about one or more axes; the rotatable actuator is disposed on the first portion of the harness. Head-mounted display.

7. the first side member is disposed along a first side surface of the head mounted display, The head mounted display of claim 6, wherein the second side member is disposed along a second side of the head mounted display, the second side of the head mounted display being opposite the first side of the head mounted display.

8. the first side member includes a first adjustable element extending along a portion of the length of the first side member, the first adjustable element being operable to engage the rotatable actuator; or 7. The head mounted display of claim 6, wherein the second side member includes a second adjustable element extending along a portion of a length of the second side member, the second adjustable element being operable to engage with the rotatable actuator.

9. The head mounted display of claim 8 , wherein at least one of the first adjustable element or the second adjustable element includes at least one of a slot, a notch, a tab, a slit, or a tooth.

10. The head mounted display of claim 6 , further comprising an upper member extending between the front and rear portions, the upper member being adjustable in length.

11. The head mounted display of claim 10 , wherein the top member includes a first end coupled to the top of the display.

12. The head mounted display of claim 10 , further comprising a pad coupled to the upper member.

13. The head mounted display of claim 6 , further comprising a flexible printed circuit (FPC) extending from the front portion to the rear portion.

14. A wearable display, The front and The rear and a display disposed on the front portion, the display having a top, a bottom, a first side, and a second side opposite the first side; an actuator disposed on the rear; a first side member extending from the front portion toward the rear portion, a first end of the first side member pivotally coupled to the first side of the display and a second end of the first side member engaged with the actuator; a second side member extending from the front portion toward the rear portion, a first end of the second side member pivotally coupled to the second side of the display and a second end of the second side member engaged with the actuator; A harness located at the rear, a first portion configured to engage over an occipital lobe of a user's head, the first portion comprising one or more channels through which the first and second side members extend; a second portion configured to engage beneath the occipital lobe of the user's head; a gap between the first portion and the second portion to provide bending about one or more axes; The actuator is disposed on the first portion of the harness. Wearable display.

15. the actuator is engaged with the first side member along a portion of a length of the first side member; The wearable display of claim 14 , wherein the actuator is engaged with the second side member along a portion of a length of the second side member.

16. the actuator is operable to engage the first side member at different locations along a length of the first side member; The wearable display of claim 14 , wherein the actuator is operable to engage the second side member at different positions along a length of the second side member.

17. the wearable display is configured to increase a gap distance between the front and rear portions via actuating the actuator in a first direction; The wearable display of claim 14 , wherein the wearable display is configured to reduce the gap distance between the front and rear portions via actuating the actuator in a second direction.

18. the actuator comprises a rotatable knob; the first side member includes at least one of a slot, notch, tab, or tooth that operably engages the actuator; or The wearable display of claim 14 , wherein the second side member includes at least one of a slot, a notch, a tab, or a tooth that operably engages with the actuator.

19. The wearable display of claim 14 , further comprising an upper member extending between the front and rear portions, the upper member being adjustable in length.

20. The wearable display of claim 14 , further comprising a housing disposed at the rear.

21. and a wire routing assembly configured to transition between an extended state and a retracted state, the wire routing assembly comprising: a housing having a first end, a second end, and a channel extending between the first end and the second end of the housing, the second end of the housing being coupled to the rear of the wearable display; a slide at least partially disposed within the channel, the slide having a first end and a second end, the first end of the slide extending from the first end of the housing and coupled to the front portion, the slide configured to telescopically extend from or retract into the housing to transition the wire routing assembly between the extended state and the retracted state; and a wire extending from the first end of the slide to the second end of the housing. The wearable display of claim 14 .

22. The head mounted display of claim 1 , further comprising an upper member extending between the front and rear portions, the upper member being adjustable in length.

23. the rotatable actuator comprises a rotatable knob having a gear; the gear of the rotatable actuator is operable to engage one or more slots extending along a portion of a length of the first side member; The head mounted display of claim 6 , wherein the gear of the rotatable actuator is operable to engage with one or more slots extending along a portion of a length of the second side member.

24. the actuator comprises a rotatable knob having a gear; the gear of the actuator is operable to engage one or more slots extending along a portion of a length of the first side member; The wearable display of claim 14 , wherein the gear of the actuator is operable to engage with one or more slots extending along a portion of a length of the second side member.

25. the head mounted display is configured to increase a gap distance between the front and rear portions via actuating the rotatable actuator in a first direction; The head mounted display of claim 6, wherein the head mounted display is configured to reduce a gap distance between the front and rear portions via actuating the rotatable actuator in a second direction.

26. the rear actuator is operable to engage the first side member at different locations along a length of the first side member; The head mounted display of claim 1 , wherein the rear actuator is operable to engage the second side member at different positions along a length of the second side member.

27. the rotatable actuator is operable to engage the first side member at different positions along a length of the first side member; The head mounted display of claim 6 , wherein the rotatable actuator is operable to engage the second side member at different positions along a length of the second side member.

28. The head mounted display of claim 22 , wherein the top member includes a first end coupled to the top of the display.

29. The wearable display of claim 19 , wherein the top member includes a first end coupled to the top of the display.

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