Head-mounted display

Abstract

The head mounted display includes a front portion having a display housing and a rear portion having a rear housing. A first member extends between the front and rear portions and is adjustable via actuation of a first rotatable actuator and a first cable mechanism. A second member extends between the front and rear portions and is adjustable via actuation of a second rotatable actuator and a second cable mechanism. A third member extends between the front and rear portions and is adjustable via actuation of a second rotatable actuator and a third cable mechanism.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to commonly assigned, co-pending U.S. Provisional Patent Application No. 63 / 125,503, filed December 15, 2020. Application No. 63 / 125,503 is incorporated herein by reference in its entirety. [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 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 themselves in a virtual environment.

[0003] Conventional head mounted displays have little or no adjustment to accommodate different head sizes and / or to adjust the tightness of the head mounted display. As a result, some users may find it difficult to wear the head mounted display comfortably. For example, being too snug may make the head mounted display difficult to wear. Alternatively, being too loose may not properly secure the head mounted display to the user. Moreover, users have different facial structures and shapes. [Brief description of the drawings]

[0004] The detailed description is set forth with reference to the accompanying drawings. In each drawing, the leftmost digit(s) of a reference number identifies the drawing in which the reference number first appears. The same or similar reference numbers in different drawings indicate similar or identical items. The systems depicted in the accompanying drawings are not to scale, and components within the drawings may not be drawn to scale relative to each other.

[0005] [Figure 1] 1 illustrates a front isometric view of an exemplary head mounted display, according to one embodiment of the present disclosure. [Diagram 2] 2 illustrates a rear isometric view of the head mounted display of FIG. 1 according to one embodiment of the present disclosure. [Diagram 3] 2 illustrates a top view of the head mounted display of FIG. 1 according to one embodiment of the present disclosure. [Figure 4] 2 illustrates a rear view of the head mounted display of FIG. 1 according to one embodiment of the present disclosure. [Figure 5A] 2 illustrates a first side view of the head mounted display of FIG. 1 according to one embodiment of the present disclosure. [Figure 5B] 2 illustrates a second side view of the head mounted display of FIG. 1 according to one embodiment of the present disclosure. [Figure 6A] 2 illustrates an exemplary component of the head mounted display of FIG. 1 in a retracted state, according to one embodiment of the present disclosure. [Figure 6B] 6B illustrates the member of FIG. 6A in an extended state, according to one embodiment of the present disclosure. [Figure 7A] 2 illustrates a first isometric view of an exemplary actuator of the head mounted display of FIG. 1 according to one embodiment of the present disclosure. [Figure 7B] 7B illustrates a second isometric view of the actuator of FIG. 7A according to one embodiment of the present disclosure. [Figure 8] 2 illustrates a side view of an exemplary actuator disposed within a housing of the head mounted display of FIG. 1 according to one embodiment of the present disclosure. [Figure 9] 2 illustrates an isometric view showing an exemplary rear harness of the head mounted display of FIG. 1 according to one embodiment of the present disclosure. [Figure 10A] 2 illustrates a first actuator of the head mounted display of FIG. 1 engaging one or more cables for adjusting the vertical position of the head mounted display on a user according to one embodiment of the disclosure. [Figure 10B]10 illustrates a second actuator of the head mounted display of FIG. 1 engaging one or more cables for adjusting the tightness of the head mounted display on a user according to one embodiment of the present disclosure. [Figure 10C] 2 illustrates a first actuator of the head mounted display of FIG. 1 engaging one or more cables for adjusting the vertical position of the head mounted display on a user according to one embodiment of the disclosure. [Figure 11] 2 illustrates one or more cables coupled to the exemplary top member of the head mounted display of FIG. 1 for adjusting the vertical position of the head mounted display on a user, according to one embodiment of the present disclosure. [Figure 12] 12 illustrates an additional view showing one or more cables of FIG. 11 for adjusting vertical position, according to an embodiment of the present disclosure. [Figure 13] 2 illustrates one or more cables coupled to the exemplary side members of the head mounted display of FIG. 1 for adjusting the tightness of the head mounted display on a user, according to one embodiment of the present disclosure. [Figure 14] 14 illustrates an additional view showing one or more cables of FIG. 13 for adjusting the tightness of a head mounted display according to one embodiment of the present disclosure. [Figure 15A] 2 illustrates an exemplary torsion spring within a side member of the head mounted display of FIG. 1 positioned in a first position, according to one embodiment of the present disclosure. [Figure 15B] 15B illustrates the torsion spring of FIG. 15A positioned in a second position according to one embodiment of the present disclosure. [Figure 16A] 15B illustrates various views of the torsion spring of FIG. 15A according to one embodiment of the present disclosure. [Figure 16B] 15B illustrates various views of the torsion spring of FIG. 15A according to one embodiment of the present disclosure. [Figure 16C] 15B illustrates various views of the torsion spring of FIG. 15A according to one embodiment of the present disclosure. [Figure 16D]15B illustrates various views of the torsion spring of FIG. 15A according to one embodiment of the present disclosure. [Figure 17] 1 illustrates a front isometric view of an exemplary head mounted display, according to one embodiment of the present disclosure. [Figure 18] 18 illustrates a rear isometric view of the head mounted display of FIG. 17 according to one embodiment of the present disclosure. [Figure 19A] 18 illustrates a front view of the head mounted display of FIG. 17 according to one embodiment of the present disclosure. [Figure 19B] 18 illustrates a rear view of the head mounted display of FIG. 17 according to one embodiment of the present disclosure. [Figure 20A] 18 illustrates a first cross-sectional view of an exemplary loudspeaker of the head mounted display of FIG. 17 according to one embodiment of the present disclosure. [Figure 20B] 18 illustrates a second cross-sectional view of the loudspeaker of the head mounted display of FIG. 17 according to one embodiment of the present disclosure. [Figure 21] 18 illustrates one or more cables for adjusting the vertical position of the head mounted display of FIG. 17 on a user according to one embodiment of the present disclosure. [Figure 22] 1 illustrates a rear isometric view of an exemplary head mounted display, according to one embodiment of the present disclosure. [Figure 23A] 23 illustrates a side view of an exemplary actuator of the head mounted display of FIG. 22 according to one embodiment of the present disclosure. [Figure 23B] 23B illustrates a cross-sectional view of the actuator of FIG. 23A according to one embodiment of the present disclosure. [Figure 24A] 23B illustrates a first isometric view of the actuator of FIG. 23A according to one embodiment of the present disclosure. [Figure 24B] 23B illustrates a second isometric view of the actuator of FIG. 23A according to one embodiment of the present disclosure. [Diagram 25] 23 illustrates an isometric view of one or more components of the head mounted display of FIG. 22 according to one embodiment of the present disclosure. [Figure 26]26 illustrates a rear view of one or more members of FIG. 25 engaged with the actuator of FIG. 23A according to one embodiment of the present disclosure. [Figure 27] 26 illustrates an isometric view of one or more members of FIG. 25 engaged with the actuator of FIG. 23A according to one embodiment of the present disclosure. [Figure 28A] 1 illustrates a cross-sectional view of an exemplary planetary gear drive of an exemplary head mounted display according to one embodiment of the present disclosure. [Figure 28B] FIG. 28B illustrates an isometric view of the planetary gear drive of FIG. 28A according to one embodiment of the present disclosure. [Figure 28C] 28B illustrates a perspective view of the planetary gear drive of FIG. 28A according to one embodiment of the present disclosure. [Figure 29A] 1 illustrates a front isometric view of an exemplary face gasket according to one embodiment of the present disclosure. [Figure 29B] 29B illustrates a top view of the exemplary face gasket of FIG. 29A according to one embodiment of the present disclosure. [Figure 29C] 29B illustrates a cross-sectional view of the exemplary face gasket of FIG. 29A according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0006] As introduced above, head mounted displays (HMDs) have a wide range of applications and may in some cases need to accommodate various head sizes among different users. However, conventional HMDs have little or no adjustment to fit different users and / or incrementally tighten. For example, conventional HMDs may use elastic or hook-and-loop straps to secure the HMD. However, such mechanisms are rather crude and rudimentary, and some users may find it difficult to adjust the HMD on the fly and / or in small increments. Thus, the HMD may not fit securely and / or the user may spend time readjusting the HMD. Such changes may diminish the usefulness of the HMD and / or negatively impact the user experience. Additionally, the inability to properly secure the HMD may affect the quality of images presented in a virtual reality (VR) and / or augmented reality (AR) environment. Thus, the HMD may be uncomfortable and / or inconvenient to wear for extended periods of time.

[0007] This application describes, in part, an HMD that fits or wears closely, comfortably, and securely around the user's head. In some cases, an HMD according to this application can take many forms, including helmets, visors, goggles, masks, glasses, and other headgear or eyewear worn on the user's head. The HMD includes a front portion having a face-mounted display adjacent to the user's eyes that outputs images (or other content) for viewing. 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 one or more handheld controllers in conjunction with the HMD to further immerse the user in the VR or AR environment.

[0008] The front of the HMD includes a face gasket that abuts against the user's face. The face gasket includes a complementary shape and / or contour to engage the user's face and seal the display (or housing) against the user's face. The face gasket may include a soft, elastic, or flexible material (e.g., elastomer, foam, etc.) that matches the ergonomics of the face. Additionally, the face gasket may be rolled or wrapped with a fabric material. The face gasket may compress (e.g., fold, roll, etc.) when the HMD is tightened on the user and expand (e.g., lengthen) when the HMD is released from the user. Such deformations may allow for different ergonomics of the face and allow the face gasket to conform to and seal against the user's face. In such cases, the face gasket may have some play or movement to abut against the user's face.

[0009] The rear of the HMD may include a basket, cradle, support, frame, or harness configured to secure around the back of the head. In some cases, the harness may engage under and / or with the occipital bone of the head, thereby gripping the head and securing the HMD. In some cases, the harness or a portion of the harness may be spring-loaded or tension-loaded to maintain constant pressure on the head. Such pressure may help secure the HMD to the user by making the harness ergonomically fitting. The harness may also include one or more articulation joints (e.g., ball joints, pivots, etc.) for gripping against the back of the head. Additionally, the harness may include different material thicknesses and / or voids to provide various levels of stiffness to the harness. For example, different voids and / or material thicknesses throughout the harness may provide a spring-like feel to maintain contact against the head and / or accommodate different shaped heads. In some cases, the harness may include a portion that engages the head above the occipital bone and / or that extends circumferentially and / or radially around at least a portion of the head.

[0010] The harness may couple to a rear housing disposed at the rear of the HMD. The rear housing may house various computing components of the HMD. Additionally, the rear housing may include one or more actuators for adjusting the fit of the HMD to the user. These actuators may be actuated by the user to, for example, tighten or loosen the HMD and / or otherwise adjust the fit of the HMD to the user. By way of example, one or more members may engage the user's head between the front of the HMD and the rear of the HMD. These members may traverse across the top of the head, along the sides of the head, etc. By adjusting the length of these members individually or collectively, the user may adjust the fit and feel of the HMD.

[0011] In some cases, the members may represent chains, cords, sections, straps, bands, etc. that operably couple the front of the HMD and the back of the HMD. By actuating the actuators, the members may be extended or retracted to various degrees to tighten and loosen the HMD. Additionally, the actuators may adjust the vertical fit of the HMD to the user or the vertical position of the display relative to the eyes. Thus, a user may utilize the actuators to accommodate different head sizes, provide incremental amounts of fastening, and / or position the HMD based on user preference.

[0012] The HMD may include various mechanisms for adjusting the fit of the HMD to the user. In one example, a cable mechanism may include one or more cables routed through and coupled to the members to tighten and / or loosen the HMD. For example, an actuator may be operatively coupled to the one or more cables and rotated to pull the one or more cables. Rotating the actuator in a first direction may pull the front and rear of the HMD further apart, thereby loosening the HMD. Alternatively, rotating the actuator in a second direction may pull the front and rear together, thereby tightening the HMD. In such a case, the first cable may be used to loosen the HMD while the second cable may be used to tighten the HMD. That is, pulling the first cable may loosen the HMD and pulling the second cable may tighten the HMD. As the first and second cables are pulled, the first and second cables may be wound around respective spools, reels, rods, etc.

[0013] Moreover, depending on the actuation direction (e.g., tightening or loosening), the first cable or the second cable may unwind from the respective spool. Slack introduced by one of the first cable or the second cable may be taken up to allow for tightening or loosening of the HMD. In this sense, the first cable and the second cable may operate in unison to provide slack to tighten or loosen the HMD.

[0014] In addition, one or more cables may be used to adjust the vertical fit of the HMD to the user. The vertical fit may adjust the vertical position of the display relative to the user's eyes. Similar to the cables used to tighten and loosen the HMD, the cables for adjusting the vertical fit of the HMD may introduce or take up slack to accommodate different vertical fits.

[0015] To illustrate, the HMD may include multiple members and / or actuators for securing the HMD to a user. One or more side members may extend on opposing sides of the HMD between the front of the HMD and the rear of the HMD. When worn by a user, a first side member may extend along a first side of the head (e.g., the left side) and a second side member may extend along a second side of the head (e.g., the right side). A first end of the side member may be hingedly, rotatably, or pivotally coupled to a display worn on the user's face. A second end of the side member may receive a side arm extending from the rear housing or rear harness. For example, the side member may include a receptacle into which the side arm slides. Engagement between the side member and the side arm operates to couple the front and rear of the HMD. Here, the side members and side arms can slide onto or into each other in a telescopic fashion to adjust the tightness of the HMD.

[0016] The cables of the cable mechanism may be attached to the side members and / or the side arms to tighten and loosen the HMD. As introduced above, the cable mechanism may include a first cable utilized to loosen the HMD and a second cable utilized to tighten the HMD. Pulling the first cable via actuating the actuator in a first direction may cause the side arms to extend from the side members. In other words, the side members and the side arms may extend away from each other to loosen the HMD. Pulling the second cable via actuating the actuator in a second direction may cause the side arms to retract into the side members. Here, the side members and the side arms may move toward each other to tighten the HMD. Moreover, in some cases, the side members and the side arms of the first and second sides may move in unison during tightening and loosening the HMD. Thus, the sides of the HMD may be tightened and loosened in unison.

[0017] The cables of the cable mechanism may be operatively coupled to actuators such as dials, levers, wheels, slides, buckles, arms, and / or knobs. The cables may also be wound around respective spools in operative relationship with the actuators. For example, a first cable may be wound and unwound on a first spool / reel, while a second cable may be wound and unwound on a second spool / reel. When the actuator is actuated in a first direction, the first cable may be wound around the first spool, while the second cable may be unwound from the second spool. That is, while loosening the HMD, the actuator may be rotated in a first direction to wind the first cable onto the first spool and extend the side arms from the side members to loosen the HMD. At the same time, the second cable may be unwound from the second spool to provide slack for loosening the HMD. To enable pulling on the first cable and extending the lateral arm, one end of the first cable may be coupled to the actuator and / or the first spool, while an opposite second end may be coupled to the second lateral member.

[0018] Alternatively, during tightening of the HMD, the actuator can be rotated in a second direction to unwind the first cable from the first spool while the second cable can be wound around the second spool. In this case, the second cable can be pulled to retract the lateral arm into the lateral member to tighten the HMD. One end of the second cable can be coupled to the actuator and / or the second spool while an opposite second end can be coupled to the lateral arm to enable pulling the second cable to retract the lateral arm.

[0019] The HMD may include pulleys coupled to the lateral members and / or lateral arms. The pulleys may route the cables through the lateral members and lateral arms. The pulleys may also reverse the direction of the pulling force. For example, routing the first and second cables around the pulleys may operate to respectively loosen and tighten the HMD depending on the cable being pulled. In some cases, torsion springs may be used to take up or wind up any unwanted slack in the first and / or second cables. Reducing the amount of slack may increase the responsiveness of the HMD.

[0020] In addition to including the side members and lateral arms, the HMD may include a top member disposed across the crown of the head between the front and rear of the HMD. The top member may include a cable mechanism similar to the side members and arms that serve to adjust the vertical position of the HMD on the user. For example, the top member may include a first cable wound around a first spool and a second cable wound around a second spool. Pulling the first cable may lower the vertical position of the display (e.g., the HMD is lowered vertically on the user) and pulling the second cable may raise the vertical position of the display (e.g., the HMD is raised vertically on the user). In such a case, the first cable may be wound around the first spool to lower the HMD, while the second cable may be unwound from the second spool to provide slack. Conversely, the second cable may be wound around the second spool to elevate the HMD while the first cable may be unwound from the first spool to provide slack. The upper member and arms may include pulleys for routing one or more cables and / or for pulling the first and second cables of the upper member in corresponding directions.

[0021] The HMD may include multiple actuators for adjusting the vertical position of the HMD as well as tightening and loosening the HMD, respectively. For example, the HMD may include a first actuator for adjusting the vertical position of the HMD via the top member and the arms. In addition, the HMD may include a second actuator for tightening and loosening the HMD to the user via the side members and the arms. Thus, the HMD may include one actuator for adjusting the tightening (e.g., the distance between the front and the back) of the HMD and another actuator for adjusting the vertical fit of the HMD. That is, one or more side members may help tighten and / or loosen the HMD to the user, while one or more top members may help position the HMD vertically on the user. However, in some cases, a single actuator may be used to actuate each of the top member, the side members, and the arms.

[0022] In some cases, rather than including a cable mechanism, the HMD may include straps, bands, or other members that engage the actuators. As also discussed above, the members may traverse along the sides of the head and / or across the top of the head. However, the members may include teeth, connectors, slits, tabs, notches, and / or other slots that extend along a portion of the member's length and engage with the actuators. The actuators may include complementary mechanisms configured to engage with slots, for example, at different portions along the length of the member. For example, the actuators may include dials, levers, wheels, slides, buckles, arms, and / or knobs with gears that engage with the slots. In some cases, this engagement between the members and the actuators may resemble a ratchet mechanism, a slide and lock mechanism, a friction mechanism, or the like.

[0023] For example, the first side member may have a slot extending longitudinally along a portion of its length. Similarly, the second side member may have a slot extending longitudinally along a portion of its length. At the rear of the rear housing, for example, the actuator may have one or more gears that engage with the slots of the first and second side members. Activating the actuator in a first direction may cause the first and second side members to extend from the rear housing to loosen the HMD. Alternatively, activating the actuator in a second direction may cause the first and second side members to retract into the rear housing to tighten the HMD. Additionally, a top member having a slot extending along a portion of its length may engage the gears to extend or retract its length. This extension or retraction may lower or raise, respectively, the vertical position of the HMD on the user.

[0024] The HMD may include one or more loudspeakers for outputting sound to the user. In some cases, the loudspeakers may be attached to or integrated within the side members of the HMD. For example, a first side member may include a first loudspeaker for outputting sound to the user's left ear, and a second side member may include a second loudspeaker for outputting sound to the user's right ear. The loudspeakers may include components for repositioning and / or changing the orientation or proximity of the loudspeakers to the user. For example, the first loudspeaker may be coupled to the first side member via one or more ball joints (e.g., ball and socket), and the second loudspeaker may be coupled to the second side member via one or more additional ball joints. The ball joints may provide for varying degrees of movement about one or more axes. Additionally, the first loudspeaker and / or the second loudspeaker may be coupled or mounted to a slide that telescopically extends and retracts. The slide may provide translational or longitudinal movement to extend or retract the loudspeaker, while the ball joint provides rotational movement.

[0025] In some cases, the HMD may include one or more wire paths or assemblies that direct wires, optical fibers, or other cables between the front and rear of the HMD. For example, the rear housing may house a wireless transceiver, a battery, a microphone, input / output devices, a processor, modules, and / or other components to enable operation of the HMD. In some cases, the front may include a display, an antenna, a microphone, input / output devices, a processor, modules, etc. One or more cables may communicatively couple the front and rear to provide power, information signals, or images to be output on the display. In some cases, the wires, optical fibers, and / or cables may pass through one or more wire paths to mitigate potential problems of wires tangling and / or detracting from the aesthetic appearance of the HMD. In some cases, the wire paths may be integrally formed within one or more top members and / or one or more side members.

[0026] Additionally or alternatively, in some cases, the HMD may include a flexible printed circuit (FPC) that extends from the front to the back of the HMD and communicatively couples components of the HMD. In some cases, the FPC may include service loops or slack that allow the FPC to extend or retract. In some cases, the service loops may be disposed inside the sleeve.

[0027] The present disclosure provides a general understanding of the principles of the 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 appreciate 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 may be combined with features of other embodiments, including between the systems and methods. Such modifications and variations are intended to be included within the scope of the appended claims.

[0028] FIG. 1 illustrates a front isometric view of an exemplary HMD 100. As shown in FIG. 1, the HMD 100 may include a top member 102 extending from a front 104 of the HMD 100 toward a rear 106 of the HMD 100. A first end of the top member 102 is shown coupled (e.g., via a hinge) to a display housing 108 (which may house one or more displays) of the HMD 100. As a result, the top member 102 may be configured to pivot relative to the display housing 108 so that the display housing 108 conforms to the user's face. In some cases, in addition to including one or more displays, the display housing 108 may include batteries, sensors, adjustment mechanisms, buttons, interfaces, controllers, modules, etc. to perform operations of the HMD 100. A second end of the top member 102 may extend into or through a sleeve 110. Within the sleeve 110, the top member 102 may engage one or more arms and / or cable mechanisms as discussed herein. These arms and cable mechanism may act to increase or decrease the length of the top member 102 exposed from the sleeve 110. For example, the cable mechanism of the top member 102 may engage with a first actuator 112 to adjust the vertical position of the HMD 100 on the user. The cables of the cable mechanism may be wound or unwound by actuation of the first actuator 112 to telescopically extend and retract the top member 102 at various lengths from the sleeve 110.

[0029] Adjusting the top member 102 may act to adjust the vertical position of the display housing 108 on the user. For example, retracting the top member 102 (or arm) into the sleeve 110 may decrease the exposed length of the top member 102 and raise the display housing 108 relative to the user's face. Extending the top member 102 may increase the exposed length of the top member 102 and lower the display housing 108 relative to the user's face. In this sense, the first actuator 112 may be used to adjust the vertical position of the display housing 108 on the user.

[0030] In some cases, the top member 102 may include a flexible material (e.g., rubber, plastic, etc.) configured to arc, flex, and / or otherwise conform to the user's head. Fabric covered foam pads may be bonded to the top member 102 and / or sleeve 110 and may include rubber knobs to allow for easy installation and removal (e.g., for cleaning or replacement) from the top member 102. In such cases, the rubber knobs may be pressed into holes in the sleeve 110.

[0031] The HMD 100 also includes one or more side members, such as a first side member 114 and a second side member 116. The first side member 114 and the second side member 116 may extend along opposite sides of the HMD 100 between the front portion 104 and the rear portion 106. The first side member 114 and the second side member 116 are shown coupled to opposite sides (e.g., left and right) of the display housing 108. In some cases, the first side member 114 and the second side member 116 may be pivotally coupled to the display housing 108 to allow the display housing 108 to pivot to accommodate a user.

[0032] One or more arms may extend from the rear 106 of the HMD 100 to engage with the first and second side members 114, 116, respectively. For example, a first lateral arm 118 may extend to engage with the first lateral member 114, and a second lateral arm 120 may extend to engage with the second lateral member 116. As discussed herein, the first lateral arm 118 and the second lateral arm 120 may be components of a rear harness 122 of the HMD 100.

[0033] The first lateral arm 118 can engage with the first lateral member 114 to extend or retract the first lateral member 114 toward or away from the rear 106. Similarly, the second lateral arm 120 can engage with the second lateral member 116 to extend or retract the second lateral member 116 toward or away from the rear 106. As discussed herein, the HMD 100 can include an actuator operably engaged with a cable mechanism for extending and retracting the first lateral member 114 and the second lateral member 116. For example, actuating the actuator in a first direction can cause the first lateral member 114 and the second lateral member 116 to extend from the first lateral arm 118 and the second lateral arm 120, respectively. This movement can increase the exposed length of the first lateral arm 118 and the second lateral arm 120, loosening the HMD 100. Alternatively, actuating the actuator in a second direction can cause the first lateral member 114 and the second lateral member 116 to retract towards the first lateral arm 118 and the second lateral arm 120, respectively. This movement can decrease the exposed length of the first lateral arm 118 and the second lateral arm 120, thereby tightening the HMD 100.

[0034] The HMD 100 further includes a rear harness 122 that engages the back of the head. In some cases, the rear harness 122 may include slots or features that allow the rear harness 122 to flex or conform to the head (e.g., above and below the user's occipital bone). The rear harness 122 may additionally or alternatively be spring-loaded (e.g., a leaf spring) to apply pressure to the back of the head.

[0035] 2 illustrates a rear isometric view of the HMD 100. The rear 106 of the HMD 100 is shown including a rear housing 200. The rear housing 200 may house various components of the HMD 100, such as a battery, an antenna, a processor, a printed circuit board (PCB), etc. In addition, the rear housing 200 is shown including a first actuator 112 and a second actuator 202. As shown, in some cases, the first actuator 112 may be disposed vertically above the second actuator 202.

[0036] Within the rear housing 200, the first actuator 112 may engage with the cable arrangement of the top member 102, and the second actuator 202 may engage with the cable arrangement of the first side member 114 and / or the second side member 116, respectively. As introduced above, the first actuator 112 and the top member 102 may be used to adjust the HMD 100 vertically on the user or relative to the user's eyes, while the second actuator 202 may be used to tighten and loosen the HMD 100. Additionally, the rear harness 122 may include a first lateral arm 118 and a second lateral arm 120 that engage with or into the first lateral member 114 and the second lateral member 116, respectively. In some cases, the first lateral member 114 and the second lateral member 116 may slide over the first lateral arm 118 and the second lateral arm 120, respectively.

[0037] The HMD 100 may include various tubes for routing or directing the cables of the cable mechanism. For example, a first tube 204 and a second tube 206 are shown routed from the rear housing 200 to the second side member 116. The first tube 204 and the second tube 206 may direct respective cables used to extend and retract the second side member 116 from the second lateral arm 120. Although not shown in FIG. 2, tubes may similarly connect to the first side member 114 to direct cables used to extend and retract the first side member 114 from the first lateral arm 118.

[0038] Similarly, a third tube 208 and a fourth tube 210 are shown routed from the rear housing 200 to the sleeve 110. The third tube 208 and the fourth tube 210 can respectively guide cables used to extend and retract the upper member 102 from the sleeve 110. These cables can engage the upper member 102, the sleeve 110, and / or the upper arm 212. In some cases, the upper arm 212 can be coupled to or engaged with the sleeve 110. Here, similar to the first lateral arm 118 and the second lateral arm 120, the rear harness 122 can include an upper arm 212 that extends into the sleeve 110. The upper arm 212 can similarly engage the upper member 102 to be extended and retracted to various lengths, for example, as discussed above with respect to the first lateral member 114 and the first lateral arm 118.

[0039] 3 illustrates a top view of the HMD 100 showing the top member 102 extending from the front 104 towards the rear 106 into the sleeve 110. Similarly, a first side member 114 and a second side member 116 may extend around the sides of the HMD 100 to engage with a first side arm 118 and a second side arm 120, respectively. A rear harness 122 is shown extending from the rear 106 to engage with a user's head. In some cases, a rear housing 200 may be coupled to the rear harness 122. Additionally, a third tube 208 and a fourth tube 210 are shown routed between the rear housing 200 and the sleeve 110 to guide cables that adjust the vertical position of the display housing 108 on the user.

[0040] 4 illustrates a rear view of the HMD 100. A first tube 204 and a second tube 206 are shown extending from the second side member 116 into the rear housing 200 from the right side and toward the rear 106 of the HMD 100. Similarly, a fifth tube 300 and a sixth tube 302 are shown extending from the first side member 114 into the rear housing from the left side and toward the rear 106 of the HMD 100. The fifth tube 300 and the sixth tube 302 may house cables for extending and retracting the first side member 114, respectively. A first side arm 118 and a second side arm 120 are further shown extending into the first side member 114 and the second side member 116, respectively, around the sides of the HMD 100.

[0041] Additionally, a third tube 208 and a fourth tube 210 are shown extending from the sleeve 110 into the rear housing 200, from the top of the HMD 100 towards the rear 106. Also, an upper arm 212 is shown extending into the sleeve 110 for engaging a cable mechanism to increase or decrease the length of the upper member 102 exposed from the sleeve 110.

[0042] In some cases, the first side member 114 and the second side member 116 may extend and retract in unison via actuation of the second actuator 202. Additionally, the engagement between the first side member 114 and the first lateral arm 118 and the engagement between the second side member 116 and the second lateral arm 120 may couple the front 104 and rear 106 of the HMD 100.

[0043] 5A and 5B illustrate first and second side views, respectively, of the HMD 100. As shown in FIG. 5A, the fifth tube 300 and the sixth tube 302 extend from the first side member 114 to the rear housing 200. The cables in the fifth tube 300 and the sixth tube 302 may engage with the second actuator 202. In FIG. 5B, the first tube 204 and the second tube 206 extend from the second side member 116 to the rear housing 200. The cables in the first tube 204 and the second tube 206 may engage with the second actuator 202. Depending on the direction of actuation of the second actuator 202, the first side member 114 may extend from or retract across the first side arm 118, and the second side member 116 may extend from or retract across the second side arm 120.

[0044] Similarly, a third tube 208 and a fourth tube 210 extend from the sleeve 110 to the rear housing 200. Cables within the third tube 208 and the fourth tube 210 may engage the first actuator 112. Depending on the direction of actuation of the first actuator 112, the upper member 102 may extend or retract from the sleeve 110 by various lengths.

[0045] The rear harness 122 may extend from the rear housing 200 to point the back of the head when the HMD 100 is worn. In some cases, the rear harness 122 may include a pad that rests on the top of the user's head. The rear harness 122 may also be spring-loaded or tensioned to accommodate the ergonomics of different heads.

[0046] 6A and 6B illustrate side views of the HMD 100, showing the second side member 116 in a fully retracted and fully extended position, respectively. In Figures 6A and 6B, the second side member 116 is shown in perspective to illustrate engagement with the second lateral arm 120. Although the discussion herein is directed to the second lateral member 116, it should be understood that the first lateral member 114 and the first lateral arm 118 may operate in a similar manner.

[0047] Beginning with FIG. 6A, the second side member 116 is shown fully retracted over the second lateral arm 120. Clamping the HMD 100 via the second actuator 202 may reduce the exposed length of the second lateral arm 120. The second side member 116 may slide over the second lateral arm 120, or alternatively stated, the second lateral arm 120 may be received within the second lateral member 116. In such a case, the second side member 116 and the second lateral arm 120 may be in a sliding relationship. However, in some cases, the second side member 116 and the second lateral arm 120 may slide alongside one another, within one another, etc. For example, the second lateral arm 120 may be configured to slide within the second side member 116 via a track system or a mechanism on the second side member 116 and / or the second lateral arm 120 that engages to enable sliding movement.

[0048] To position or receive the second lateral arm 120, the second side member 116 may include tabs or other channels. For example, as shown, the second side member 116 may include a number of channels 600 into which the second lateral arm 120 is configured to slide. The channels 600 may represent U-shaped channels shaped to receive the sides, ends, or edges of the second lateral arm 120. As shown, the second side member 116 may include one or more channels 600 disposed on the top and / or bottom of the second side member 116. In some cases, the channels 600 may act to align the second lateral arm 120 within the second side member 116.

[0049] In FIG. 6B, the second side member 116 is shown fully extended from the second lateral arm 120. Extending the second side member 116 exposes a greater length of the second lateral arm 120. That is, relaxing the HMD 100 may increase the exposed length of the second lateral arm 120. In some cases, the second side member 116 may be configured to extend between 0 millimeters (mm) and 65 mm relative to the second lateral arm 120.

[0050] A first tube 204 and a second tube 206 are further shown for routing cables within the second side member 116 and / or along the second side arm 120 .

[0051] 7A and 7B illustrate the first actuator 112. Although the discussion herein is directed to and describes the components of the first actuator 112, it should be understood that the second actuator 202 may include similar components.

[0052] The first actuator 112 includes a knob 700 that can be grasped and actuated by a user. For example, the knob 700 can include ridges or grooves for the user to grasp and rotate. The first actuator 112 further includes a reel for engaging a cable of a cable mechanism. For example, the first actuator 112 can include an extension reel 702 and a retraction reel 704. The extension reel 702 and the retraction reel 704 can represent spools for taking in a cable of a cable mechanism associated with adjusting the vertical position of the display housing 108. In some examples, the extension reel 702 can include a spool for receiving a first cable corresponding to the extension cable. The retraction reel 704 can include a second spool for receiving a second cable corresponding to the retraction cable. The extension reel 702 and the retraction reel 704 can be coupled to the knob 700 such that during rotation of the knob 700, the extension reel 702 and the retraction reel 704 rotate.

[0053] When the first actuator 112 is actuated, depending on the direction of actuation, the cable around the extension reel 702 and retraction reel 704 may be wound and unwound. For example, if the first actuator 112 is actuated to lower the display housing 108 (e.g., clockwise), the first cable is taken up by the extension reel 702. As discussed herein, pulleys within the upper member 102, sleeve 110, and / or about the upper arm 212 may generate a pulling motion to lower the display housing 108. At the same time, the retraction reel 704 may introduce slack into the second cable to allow the first cable to be taken up by the extension reel 702.

[0054] To allow for this movement, the first and second cables may be wound in opposite directions around the extension reel 702 and retraction reel 704. For example, the first cable may be wound in a first direction (e.g., clockwise) around the extension reel 702, and the second cable may be wound in a second direction around the retraction reel 704. Thus, during take-up of the first cable, the second cable may be unwound to allow the display housing 108 to be lowered. Conversely, when the first actuator 112 is actuated to raise the display housing 108 (e.g., counterclockwise), the second cable is taken up by the retraction reel 704. At the same time, the extension reel 702 may introduce slack into the first cable to allow the second cable to be taken up by the retraction reel 704 (assuming different winding directions of the first cable and the second table). Thus, during the uptake of the second cable, the first cable may be unwound to allow the display housing 108 to rise.

[0055] The knob 700 is further shown including a ratchet mechanism including a first ratchet arm 706(1) and a second ratchet arm 706(2). The first ratchet arm 706(1) and the second ratchet arm 706(2) may be disposed on the underside of the knob 700. In some cases, the first ratchet arm 706(1) and the second ratchet arm 706(2) may each include two arms that extend radially outward. Additionally, the first ratchet arm 706(1) and the second ratchet arm 706(2) may be diametrically opposed from one another. The first ratchet arm 706(1) and the second ratchet arm 706(2) may include arms (e.g., teeth) that engage with teeth on the rear housing 200. That is, when the first actuator 112 is coupled to the rear housing 200, the first ratchet arm 706(1) and the second ratchet arm 706(2) may mate with teeth on the rear housing 200. This engagement may provide a ratchet-like action to allow a user to rotate the first actuator 112. Additionally, the engagement between the first ratchet arm 706(1) and the second ratchet arm 706(2) and the teeth on the rear housing 200 may prevent back-driving of the first actuator 112.

[0056] 8 illustrates the engagement between the first actuator 112 and the second actuator 202 and the rear housing 200. As described above in FIGS. 7A and 7B, the second actuator 202 may have similar components as the first actuator 112, such as an extension reel 800 and a retraction reel 802 for winding / unwinding the cable. In FIG. 8, the first actuator 112 is shown disposed away from the rear housing 200, while the second actuator 202 is shown residing within the rear housing 200.

[0057] The rear housing 200 includes cavities, pockets, or receptacles for receiving the first actuator 112 and the second actuator 202. For example, the first actuator 112 may reside in the first receptacle 804 and the second actuator 202 is shown residing in the second receptacle 806. When coupled to the rear housing 200, the extension reel and the retraction reel may reside in the first receptacle 804 and the second receptacle 806, respectively.

[0058] Proximal to the openings of the first and second receptacles 804, 806, the rear housing 200 may include ratchet teeth 808. The ratchet teeth 808 may be arranged in a circle around the openings to the first and second receptacles 804, 806. The ratchet teeth 808 may be complementary to engage with the first and second ratchet arms 706(1) and 706(2) of the first actuator 112. The first and second ratchet arms of the second actuator 202 may similarly engage with ratchet teeth arranged around the periphery of the second receptacle 806.

[0059] FIG. 9 shows a perspective view of the HMD 100 and illustrates the rear harness 122 engaged with the rear housing 200. As shown, the upper arm 212 may be pivotally coupled to the rear housing 200 via a ball joint 900. In some examples, a ball portion of the ball joint 900 may extend from or be a component of the upper arm 212. A socket portion of the ball joint 900 may be a component of the rear housing 200. Coupling of the ball portion within the socket portion may form the ball joint 900. Coupling the upper arm 212 to the rear housing 200 via the ball joint 900 may help to fit the rear harness 122 to the user's head. For example, the ball joint 900 may allow the rear harness 122 to pivot in a particular direction and / or axis to secure the HMD 100 to the user.

[0060] 10A and 10B illustrate perspective views of cables routed around the reels of the first actuator 112 and the second actuator 202, respectively.

[0061] Beginning with FIG. 10A, the extension reel 702 and retraction reel 704 are shown residing in a first receptacle 804. A first cable 1000 is shown wrapped, wound, or wound around the extension reel 702. The first cable 1000 may correspond to an extension cable such that when the first cable 1000 is pulled, the display housing 108 may lower onto the user's face. In other words, the first cable 1000 may be pulled to loosen the fit of the HMD 100. In some cases, the first cable 1000 may be wrapped around the extension reel 702 in a first direction, such as clockwise.

[0062] The second cable 1002 is shown wrapped, wound, or wound around the retraction reel 704. The second cable 1002 may correspond to a retraction cable such that when the second cable 1002 is pulled, the display housing 108 may rise on the user's face. In other words, the second cable 1002 may be pulled to tighten the fit of the HMD 100. In some cases, the second cable 1002 may be wrapped around the retraction reel 704 in a second direction, such as counterclockwise.

[0063] A wrap spring 1004 is shown operatively coupling the extension reel 702 and the retraction reel 704. As shown, the wrap spring 1004 may engage the extension reel 702 and the retraction reel 704 at a location between the first cable 1000 and the second cable 1002. In some cases, the wrap spring 1004 may be coupled to the extension reel 702 and / or the retraction reel 704. The wrap spring 1004 may lock upon actuation of the first actuator 112 to lower the display housing 108. For example, rotation of the knob 700 in a first direction associated with raising the display housing 108 may cause the wrap spring 1004 to tighten around the retraction reel 704, pulling the second cable 1002. When rotated in the opposite direction, the wrap spring 1004 may not engage the retraction reel 704, but may lower the display housing 108 via the first cable 1000. Depending on the direction of rotation, the spring and / or pulley may take up slack.

[0064] The first actuator 112, the extension reel 702, and / or the retraction reel 704 may further include tabs, protrusions, loops, or other features to physically separate the first cable 1000, the second cable 1002, and the wrap spring 1004. These features may prevent the first cable 1000, the second cable 1002, and the wrap spring 1004 from entangling. Additionally, these features may help guide the first cable 1000 and / or the second cable 1002 during winding and unwinding. A viscous clutch 1006 may further be included to overcome slip torque and prevent the retraction reel 704 from spinning with the extension reel 702.

[0065] 10B, a third cable 1008 and a fourth cable 1010 are shown wound around the extension reel 800 of the second actuator 202. The third cable 1008 and the fourth cable 1010 may correspond to extension cables that, when pulled, cause the HMD 100 to loosen from the user. In other words, the third cable 1008 and the fourth cable 1010 may be pulled to loosen the fit of the HMD 100. In some cases, the third cable 1008 and the fourth cable 1010 may be wound around the extension reel 800 in a first direction, such as clockwise.

[0066] As the second actuator 202 can loosen the sides of the HMD 100 in unison, i.e., simultaneously, the extension reel 800 can be operatively coupled to a cable for loosening the first side member 114 (e.g., third cable 1008) and a cable for loosening the second side member 116 (e.g., fourth cable 1010). As shown, the third cable 1008 and the fourth cable 1010 can be separated by a partition for routing to the first side member 114 and the second side member 116, respectively.

[0067] A fifth cable 1014 and a sixth cable 1016 are shown wound around the retraction reel 802 of the second actuator 202. The fifth cable 1014 and the sixth cable 1016 may correspond to retraction cables that, when pulled, tighten the HMD 100 from the user. In other words, the fifth cable 1014 and the sixth cable 1016 may be pulled to tighten the fit of the HMD 100. In some cases, the fifth cable 1014 and the sixth cable 1016 may be wound around the retraction reel 802 in a second direction, such as counterclockwise.

[0068] As the second actuator 202 can clamp the sides of the HMD 100 in unison, i.e., simultaneously, the retract reel 802 can be operatively coupled to a cable for clamping the first side member 114 (e.g., the fifth cable 1014) and a cable for clamping the second side member 116 (e.g., the sixth cable 1016). As shown, the fifth cable 1014 and the sixth cable 1016 can be separated by a partition for routing to the first side member 114 and the second side member 116, respectively.

[0069] A wrap spring 1020 is shown operatively coupling the extension reel 800 and the retraction reel 802. As shown, the wrap spring 1020 may engage the extension reel 800 and the retraction reel 802 at a location between the third cable 1008 / fourth cable 1010 and the fifth cable 1014 / sixth cable 1016. In some cases, the wrap spring 1020 may be coupled to the extension reel 800 and / or the retraction reel 802. The wrap spring 1020 may lock during actuation of the second actuator 202 to clamp the HMD 100 to the user. For example, during rotation of the second actuator 202 in a direction associated with clamping the HMD 100, the wrap spring 1020 may tighten around the retraction reel 802 and pull the fifth cable 1014 and the sixth cable 1016. When rotated in the opposite direction, the wrap spring 1020 may not engage the retraction reel 802 but may loosen the HMD 100 via the third cable 1008 and the fourth cable 1010. Depending on the direction of rotation, the spring and / or pulleys may take up the slack. A viscous clutch 1022 may further be included to overcome slip torque and prevent the retraction reel 704 from spinning with the extension reel 702.

[0070] In some cases, the diameter ratio of the extension reel 702 (or extension reel 800) and retraction reel 704 (or retraction reel 802) may be configured or designed to match the force ratio, otherwise the first cable 1000 (or the third cable 1008 and the fourth cable 1010) and the second cable 1002 (or the fifth cable 1014 and the sixth cable 1016) may not be wound at an equal speed. This may cause slack to be introduced into the first cable 1000 or the second cable 1002. In some cases, the HMD 100 may have equal force ratios (2:1 and 2:1) for the first cable 1000 (2:1) and the second cable 1002 (2:1) to allow the diameters of the extension reel 702 and retraction reel 704 to be the same size (1:1). If there is a difference in the force ratio (1:1 and 2:1), then the extension reel 702 and retraction reel 704 should also have a 2:1 ratio for their diameters.

[0071] 10C illustrates a simplified diagram of the first actuator 112, the wrap spring 1004, the extension reel 702, and the retraction reel 704. As shown, the wrap spring 1004 may be wrapped around the extension reel 702 and the retraction reel 704. The first cable 1000 may represent an extension cable coupled to the extension reel 702. Thus, when the extension reel 702 is rotated, the extension reel 702 may take up the first cable 1000 to lower the display housing 108. The second cable 1002 may represent a retraction cable coupled to the retraction reel 704. When the retraction reel 704 is rotated, the retraction reel 704 may take up the second cable 1002 to raise the display housing 108.

[0072] The first actuator 112 is further shown to include a shaft 1024. The shaft 1024 and the stretch reel 702 may be keyed together via a mounting 1026 (e.g., a key slot, etc.), which may transfer rotational motion of the shaft 1024 to the stretch reel 702.

[0073] During the lowering of the display housing 108, the extension reel 702 takes up the slack in the second cable 1002 while the retraction reel 704 may freewheel (e.g., spin freely). Once all the slack in the second 1002 has been taken up, the top member 102 may begin to experience relative motion that begins to unwind the second cable 1002 from the retraction reel 704. In this manner, the slack is removed.

[0074] Conversely, during the elevation of the display housing 108, the extension reel 702 and retraction reel 704 are directly coupled together by the wrap spring 1004. This means that the retraction reel 704 winds the second cable 1002 until the cable reaches a hard stop within the top member 102. In either case, the retraction reel 704 continues to wind the second cable 1002. Meanwhile, the extension reel 702 unwinds the first cable 1000.

[0075] The second actuator 202 may similarly wind and unwind the cables of the first side member 114 and the second side member 116 to tighten and loosen the HMD 100.

[0076] 11 illustrates the routing of cables within the upper member 102, the sleeve 110, and / or the inner sleeve (shown in FIG. 12). As shown, one or more cables, such as a first cable 1000 and a second cable 1002, may be used to adjust the HMD 100.

[0077] The first cable 1000 may be routed through the sleeve 110 around one or more pulleys, such as the first pulley 1100, the second pulley 1102, and the third pulley 1104. As shown, the first cable 1000 may enter the sleeve 110, be wrapped around the first pulley 1100, be wrapped around the second pulley 1102, and then be wrapped around the third pulley 1104. In some cases, the first pulley 1100 may be coupled to the sleeve 110, while the second pulley 1102 and the third pulley 1104 may be coupled to the inner sleeve. In some cases, as discussed herein, the first cable 1000 may be coupled or anchored to the top member 102 and / or the inner sleeve at a first location 1106. The opposite end of the first cable 1000 may be operably coupled to the first actuator 112 (or another actuator) and / or to a spool engaged with the first actuator 112. For example, the first cable 1000 may be engaged with a draw reel 702 that is operably coupled to the first actuator 112.

[0078] In some cases, the first cable 1000 may correspond to a cable that, when pulled, stretches the top member 102. The display housing 108 may then vertically descend on the user. In such a case, as the first cable 1000 is pulled, the first cable 1000 may be wound around the tension reel 702. For example, given the routing of the first cable 1000, pulling the first cable 1000 may stretch the top member 102 (and / or the inner sleeve) further outwardly from the sleeve 110. Meanwhile, at the same time, the second cable 1002 may be unwound to provide slack to the first cable 1000 and allow the first cable 1000 to be pulled to stretch the top member 102 from the sleeve 110.

[0079] The second cable 1002 may be routed through the sleeve 110 and around one or more pulleys, such as the fourth pulley 1108 and / or the fifth pulley 1110. In some cases, the fourth pulley 1108 and / or the fifth pulley 1110 may be coupled to the inner sleeve. In addition, the second cable 1002 may be anchored to the top member 102 at a second location 1112. An opposite end of the second cable 1002 may be operably coupled to the first actuator 112 (or another actuator) and / or a retraction reel 704 engaged with the first actuator 112.

[0080] In some cases, the second cable 1002 may correspond to a retraction cable that, when pulled, retracts the top member 102 into the sleeve 110. The display housing 108 may then be raised vertically above the user. In such a case, when the second cable 1002 is pulled, the second cable 1002 may be wound around the retraction reel 704. Given the routing of the second cable 1002, for example, pulling the second cable 1002 may retract the top member 102 and / or the inner sleeve into the sleeve 110. Additionally, to provide tension (e.g., slack) in the second cable 1002, the first cable 1000 may be unwound from the extension reel 702, allowing the second cable 1002 to be wound around the retraction reel 704.

[0081] The first cable 1000 and the second cable 1002 may be routed within the third tube 208 and the fourth tube 210, respectively, to the sleeve 110. That is, the first cable 1000 may be disposed within the third tube 208 disposed between the sleeve 110 and the rear housing 200. The second cable 1002 may be disposed within the fourth tube 210 disposed between the sleeve 110 and the rear housing 200.

[0082] 12 illustrates an additional view of the first cable 1000 and the second cable 1002 routed within the sleeve 110. As discussed above, the upper member 102 is shown extending from the sleeve 110. Additionally, the upper member 102 may be operably coupled to an inner sleeve 1200. In some cases, the upper member 102 may telescopically extend from and retract into the sleeve 110. In some cases, the HMD 100 may further include an upper arm 212, which may reside within a portion of the sleeve 110.

[0083] The first cable 1000 is shown routed around pulleys, such as the first pulley 1100, the second pulley 1102, and / or the third pulley 1104. In some cases, the first pulley 1100, the second pulley 1102, and / or the third pulley 1104 may be coupled to the top member 102, the sleeve 110, and / or the inner sleeve 1200. For example, the first pulley 1100 may be coupled to the sleeve 110, while the second pulley 1102 and the third pulley 1104 may be coupled to the inner sleeve 1200. In doing so, the first cable 1000 may be routed within the sleeve 110 around the first pulley 1100, around the second pulley 1102, and then around the third pulley 1104. In addition, the first cable 1000 is shown tethered to the upper member 102, for example, at a first location 1106. The opposite end of the first cable 1000 can be operably coupled to the first actuator 112 via the tension reel 702.

[0084] The second cable 1002 is shown routed around pulleys such as the fourth pulley 1108 and the fifth pulley 1110. The fourth pulley 1108 and / or the fifth pulley 1110 may be coupled to the inner sleeve 1200. As shown, the second cable 1002 may be routed within the sleeve 110 around the fourth pulley 1108 and then around the fifth pulley 1110. Additionally, in some cases, the second cable 1002 may be tethered to the top member 102 at the second location 1112. The opposite end of the second cable 1002 may be operably coupled to the first actuator 112 via the retraction reel 704.

[0085] The routing of the first cable 1000 and the second cable 1002 within the top member 102, the sleeve 110, and / or the inner sleeve 1200 and around the pulleys may act to vertically adjust the HMD 100 on the user. That is, the first cable 1000 and the second cable 1002 may be pulled to vertically lower and raise the HMD 100, respectively. In some cases, the first pulley 1100, the second pulley 1102, the third pulley 1104, the fourth pulley 1108, and / or the fifth pulley 1110 may be idler pulleys to guide and tension the first cable 1000 and / or the second cable 1002, respectively.

[0086] 13 illustrates the routing of the cables within the second side member 116, showing a fourth cable 1010 and a sixth cable 1016. In some cases, the fourth cable 1010 may be wound around a first pulley 1300 and a second pulley 1302. In some cases, the first pulley 1300 may be coupled (e.g., attached) to the second side arm 120. The second pulley 1302 may be coupled (e.g., attached) to the second side member 116. The fourth cable 1010 may enter the second side member 116, be wound around the first pulley 1300, be wound around the second pulley 1302, and then be coupled (e.g., secured) to the second side member 120. That is, an end of the fourth cable 1010 may be coupled to the second actuator 202 (or a component thereof, such as the draw reel 800). A second, opposite end of the fourth cable 1010 may be coupled to the second side member 120.

[0087] The sixth cable 1016 may enter the second side member 116 and be wound around the third pulley 1304 and the fourth pulley 1306. The third pulley 1304 and / or the fourth pulley 1306 may be coupled to the second side arm 120. In some cases, the third pulley 1304 may represent an arm of a torsion spring in the second side member 116 (as discussed herein). That is, the third pulley 1304 may be omitted and instead the sixth cable 1016 may be wound around an arm or other protrusion of the torsion spring. A first end of the sixth cable 1016 may be coupled to the second actuator 202 (or a component thereof such as the retraction reel 802), while a second opposite end may be coupled to the second side member 120.

[0088] In some cases, the operation of the fourth cable 1010 and the sixth cable 1016 may resemble a mechanism for stretching the second side member 116 to various extensions. During actuation of the second actuator 202, the routing of the fourth cable 1010 and the sixth cable 1016 may cause the HMD 100 to tighten and / or loosen from the user. For example, considering the routing of the fourth cable 1010 around the first pulley 1300 and the second pulley 1302, pulling the fourth cable 1010 may stretch the second side member 116 (or otherwise increase the distance between the front 104 and the rear 106 of the HMD 100). This may loosen the HMD 100 from the user. Meanwhile, the sixth cable 1016 may provide slack for stretching the second side member 116. For example, when the second actuator 202 is actuated to loosen the HMD 100, the sixth cable 1016 may provide slack for the fourth cable 1010 to be pulled to extend the second side member 116. That is, pulling the fourth cable 1010 may wind the fourth cable 1010 around the extension reel 800 and unwind the sixth cable 1016 from the retraction reel 802.

[0089] Alternatively, when the second actuator 202 is actuated to clamp the HMD 100, the sixth cable 1016 can be pulled to retract the second side member 116. That is, routing the sixth cable 1016 around the third pulley 1304 and the fourth pulley 1306 can retract the second side member 116, thereby reducing the distance between the front 104 and rear 106 of the HMD 100. Here, pulling the sixth cable 1016 can wrap the sixth cable 1016 around the retraction reel 802 and unwind the fourth cable 1010 from the extension reel 800.

[0090] The second side member 116 can be disposed at least partially across the second lateral arm 120. Tightening the HMD 100 can cause the second lateral arm 120 to retract into the second lateral member 116 or the second lateral member 116 to retract across the second lateral arm 120. Loosening the HMD 100 can cause the second lateral arm 120 to extend from the second lateral member 116 or the second lateral member 116 to extend from the second lateral arm 120.

[0091] The fourth cable 1010 and the sixth cable 1016 may be routed within the first tube 204 and the second tube 206, respectively, to the second side member 116. That is, the fourth cable 1010 may be disposed within the first tube 204 between the second side member 116 and the rear housing 200. The sixth cable 1016 may be disposed within the second tube 206 between the second side member 116 and the rear housing 200.

[0092] The second side member 116 is also shown including an end 1308 for pivotally coupling to the display housing 108. The end 1308 may be coupled via fasteners, snap fits, compression joints, or the like.

[0093] Although FIG. 13 illustrates second side member 116 and second lateral arm 120, first side member 114 may include similar features for receiving first lateral arm 118, and first side member 114 may similarly extend from and retract across first lateral arm 118.

[0094] 14 illustrates an additional view of the fourth cable 1010 and sixth cable 1016 routed within the second side member 116 and the second lateral arm 120. As discussed above, the second side member 116 may be disposed across the second lateral arm 120 such that the second side member 116 may extend at various lengths from the second lateral arm 120. Thus, in some cases, the second side member 116 may telescopically extend from and retract into the second lateral arm 120.

[0095] The fourth cable 1010 is shown routed around pulleys, such as a first pulley 1300 and a second pulley 1302. In some cases, the first pulley 1300 may be coupled to the second lateral arm 120. The second pulley 1302 may be coupled to the second side member 116. Additionally, the fourth cable 1010 may be anchored to the second lateral arm 120 at a first location 1400. An opposite end of the fourth cable 1010 may be operably coupled to the second actuator 202 via a tension reel 800.

[0096] The sixth cable 1016 is shown routed around the third pulley 1304 and the fourth pulley 1306. The third pulley 1304 may be coupled to the second side member 116, while the fourth pulley 1306 may be coupled to the second lateral arm 120. The sixth cable 1016 may be anchored to the second lateral arm 120 at a second location 1402. An opposite end of the sixth cable 1016 may be operably coupled to the second actuator 202 via the retraction reel 802. In some cases, the sixth cable 1016 may not rotate around the third pulley 1304, as discussed herein, but rather around a hook of a torsion spring.

[0097] The routing of the fourth cable 1010 and the sixth cable 1016 within the second side member 116 and around the pulleys may act to loosen and tighten the HMD 100 on the user, i.e., the fourth cable 1010 and the sixth cable 1016 can be pulled to loosen and tighten the HMD 100, respectively.

[0098] 15A and 15B illustrate various views of the second side member 116 and the sixth cable 1016. Specifically, in FIG. 15A and 15B, a torsion spring 1500 is utilized to maintain tension on the sixth cable 1016. In FIG. 15A, the torsion spring 1500 may be in a preloaded or loaded state, while in FIG. 15B, the torsion spring 1500 may be in a preloaded or loaded state. FIG. 15A and 15B further illustrate the sixth cable 1016 being routed within the second tube 206.

[0099] The torsion spring 1500 may take up slack in the sixth cable 1016 and / or allow the user to remove the HMD 100 without loosening the fourth cable 1010. That is, the user may remove the HMD 100 without actuation of the second actuator 202. For example, after the user tightens the HMD 100, it may be inconvenient to loosen the HMD 100 and then tighten the HMD 100 again at a later stage. As an example, the user may discontinue use of the HMD 100. Rather than loosening the HMD 100 via the second actuator 202, the torsion spring 1500 may provide some play to allow the user to pull the display housing 108 to separate the display housing 108 from the user's face. This separation may allow the user to pull the HMD 100 over and / or over his / her head. When the user stops pulling on the display housing 108 , the torsion spring 1500 may spring back and pull the sixth cable 1016 , reducing the distance between the front 104 and rear 106 of the HMD 100 .

[0100] In some cases, the torsion spring 1500 may include a third pulley 1304 around which the sixth cable 1016 is wound. Additionally or alternatively, the sixth cable 1016 may be wound or wrapped around a prong or hook of the torsion spring 1500. Regardless of the particular embodiment, the sixth cable 1016 may be operatively engaged with the torsion spring 1500 to provide some degree of movement. Further details of the torsion spring are discussed herein with respect to FIGS. 16A-16D. In some cases, the torsion spring 1500 may provide a few millimeters, centimeters, or inches of play to allow the user to remove and re-seat the HMD 100. This play may temporarily change the size of the HMD 100. For example, in a preloaded or unloaded state as shown in FIG. 15A, the third pulley 1304 or the sixth cable 1016 can be looped around the torsion spring 1500 in a first position 1502. When a user pulls the HMD 100, for example, on the display housing 108, the torsion spring 1500 can be coiled to place the third pulley 1304 or the sixth cable 1016 in a second position 1504. In the second position 1504, the torsion spring 1500 can be in a maximum coiled position. That is, in the second position 1504, the HMD 100 may not be pulled further apart. This results in a gap distance 1506. In some cases, the gap distance can be 13 millimeters. However, in the retracted state as shown in FIG. 15A, the torsion spring 1500 may still exert a biasing force to remove slack in the sixth cable 1016.

[0101] Figures 16A-16D illustrate various views of torsion spring 1500. In particular, Figure 16A illustrates an isometric view of torsion spring 1500, Figure 16B illustrates a first side view of torsion spring 1500, Figure 16C illustrates an end view of torsion spring 1500, and Figure 16D illustrates a second side view of torsion spring 1500.

[0102] The torsion spring 1500 may be present in the first side member 114 and the second side member 116. For example, the torsion spring 1500 may be present in the end 1308 of the second side member 116. The torsion spring 1500 includes a body coil 1600 to provide bias to the torsion spring 1500. A first end of the torsion spring 1500 may include a static leg 1602. The static leg 1602 may remain stationary during winding and unwinding of the torsion spring 1500. In some cases, the static leg 1602 may be coupled to the first side member 114 and / or the second side member 116 to remain stationary.

[0103] A second end of the torsion spring 1500 includes the dynamic leg 1604. As described above, the sixth cable 1016 may be wrapped around the dynamic leg 1604. For example, the sixth cable 1016 may be looped around the dynamic leg 1604 to pull the dynamic leg 1604 when a user provides a biasing force to the display housing 108. The engagement between the sixth cable 1016 and the dynamic leg 1604 may be similar to a pulley such that the sixth cable 1016 may be looped or wrapped around the dynamic leg 1604. Alternatively, the third pulley 1304 may be disposed around the dynamic leg 1604.

[0104] The torsion spring 1500 may further include a stop leg 1606. The stop leg 1606 may prevent the torsion spring 1500 from further coiling or stretching. For example, briefly returning to FIG. 15B, the second side member 116 may have a degree of travel equal to the gap distance 1506. When the second side member 116 is extended by the gap distance 1506, the stop leg 1606 may prevent the second side member 116 from being pulled further. This may further prevent the torsion spring 1500 from coiling. In some cases, the stop leg 1606 may contact a protrusion on the first side member 114 or the second side member 116.

[0105] 17 illustrates a front isometric view of an HMD 1700, which may in some cases include similar components as the HMD 100. For example, the HMD 1700 may include a front portion 1702 and a rear portion 1704. The front portion 1702 of the HMD 1700 may include a display housing 1706 that houses a display for outputting content to a user. The rear portion 1704 of the HMD 1700 may include a rear housing 1708.

[0106] The display housing 1706 may be coupled to the rear housing 1708 via one or more members. For example, the HMD 1700 may include a first side member 1710 that engages with a first side arm 1712 extending from the rear harness 1714. A second side member 1716 may engage with a second side arm 1718 extending from the rear harness 1714. The first side member 1710 may extend from a variety of lengths relative to the first side arm 1712 to loosen and tighten the HMD 1700 on the user. That is, the first side member 1710 may slide over or otherwise engage the first side arm 1712 to adjust the length, as similarly discussed above with respect to the first side member 114. Similarly, the second lateral member 1716 may engage with the second lateral arm 1718 .

[0107] Additionally, the HMD 1700 may include a top member 1720 that is positioned across the top of the user's head when the HMD 1700 is worn. The top member 1720 may adjust in length to adjust the vertical position of the display housing 1706 on the user's face.

[0108] In some examples, the HMD 1700 may include actuators for adjusting the length of the first side member 1710, the second side member 1716, and the top member 1720. These actuators may engage with a cable mechanism of the HMD 1700, as similarly discussed above with respect to the HMD 100. For example, the cable mechanism of the first side member 1710 and the second side member 1716 may engage with an actuator disposed at the rear 1704 of the rear housing 1708. Additionally, the cable mechanism of the top member 1720 may engage with a first actuator 1722 in the rear housing 1708. As discussed in detail herein, the cable mechanism may be routed through one or more tubes of the HMD 1700.

[0109] The HMD 1700 may include loudspeakers for outputting sound to a user. For example, the HMD 1700 may include a first loudspeaker 1724 located adjacent the user's left ear and a second loudspeaker 1726 located adjacent the user's right ear. As shown in FIG. 17, the first loudspeaker 1724 may be coupled to the first side member 1710 and the second loudspeaker 1726 may be coupled to the second side member 1716. Thus, when the first side member 1710 and the second side member 1716 are extended and / or retracted, the first loudspeaker 1724 and the second loudspeaker 1726 may move correspondingly with the first side member 1710 and the second side member 1716, respectively.

[0110] In some cases, the first loudspeaker 1724 and / or the second loudspeaker 1726 may be pivotally coupled to the first side member 1710 and the second side member 1716, respectively. This may position the first loudspeaker 1724 and the second loudspeaker 1726 adjacent to the left and right ears of a user, respectively. For example, as discussed in detail herein, the first loudspeaker 1724 may be coupled to the first side member 1710 via a ball joint. The ball joint may provide the first loudspeaker 1724 with varying degrees of movement to position the first loudspeaker 1724. Similarly, the second loudspeaker 1726 may be coupled to the second side member 1716 via a ball joint to position the second loudspeaker 1726. Additionally, the first loudspeaker 1724 and / or the second loudspeaker 1726 may slide for longitudinal adjustment. Considering that the first side member 1710 and the second side member 1716 may extend to different lengths, this lateral movement, in addition to the pivotable movement, provides a user option for repositioning the first loudspeaker 1724 and the second loudspeaker 1726.

[0111] Although a first loudspeaker 1724 and a second loudspeaker 1726 are shown coupled to the first side member 1710 and the second side member 1716, respectively, the first loudspeaker 1724 and the second loudspeaker 1726 may be coupled to the rear housing 1708 or other portions of the HMD 2200.

[0112] 18 illustrates a rear isometric view of the HMD 1700. The rear 106 of the HMD 100 is shown to include a rear housing 1708. The rear housing 1708 may include similar components (e.g., antenna, processor, PCB, etc.) as described above with respect to the rear housing 200. Additionally, the rear housing 1708 is shown to include a first actuator 1722 and a second actuator 1800.

[0113] Within the rear housing 200, a first actuator 1722 may engage with a cable arrangement of the top member 1720 and a second actuator 1800 may engage with a cable arrangement of the first side member 1710 and / or the second side member 1716. The first actuator 1722 and top member 1720 may be used to adjust the HMD 100 vertically on the user or relative to the user's eyes, while the second actuator 1800 may be used to tighten and loosen the HMD 100. Also, as introduced above, the rear harness 1714 may include a first lateral arm 1712 and a second lateral arm 1718 that engage with or within the first lateral member 1710 and the second lateral member 1716, respectively.

[0114] 19A and 19B respectively illustrate front and rear views of the HMD 1700. A first loudspeaker 1724 may be coupled to the first side member 1710 via a first loudspeaker arm 1900, and a second loudspeaker 1726 may be coupled to the second side member 1716 via a second loudspeaker arm 1902. As discussed herein, the first loudspeaker arm 1900 may be coupled to the first side member 1710 via a ball joint for adjusting the position of the first loudspeaker 1724. Similarly, the second loudspeaker arm 1902 may be coupled to the second side member 1716 via a ball joint for adjusting the position of the second loudspeaker 1726. The first loudspeaker arm 1900 and the second loudspeaker arm 1902 may also slide in a direction 1904. The pivotable nature of the first arm 1900 and the second speaker arm 1902, as well as the sliding nature of the loudspeakers in the direction 1904, allows the first loudspeaker 1724 and the second loudspeaker 1726 to be repositioned according to a user's preferences.

[0115] In FIG. 19B, the HMD 1700 may include various tubes for routing or directing the cables of the cable mechanism. For example, a first tube 1906 and a second tube 1908 are shown routed from the rear housing 1708 to the top member 1720. The first tube 1906 and the second tube 1908 may direct respective cables used to extend and retract the top member 102. A third tube 1910 and a fourth tube 1912 are shown routed from the first side member 1710 to the rear housing 1708. The third tube 1910 and the fourth tube 1912 may direct respective cables used to extend and retract the first side member 1710. A fifth tube 1914 and a sixth tube 1916 are shown routed from the second side member 1716 to the rear housing 1708. The fifth tube 1914 and the sixth tube 1916 may guide cables used to extend and retract the second side member 1716, respectively.

[0116] At the rear 1704 of the HMD 1700, the cable mechanism may engage with a first actuator 1722 and a second actuator 1800. For example, the cable mechanism of the top member 1720 may engage with the first actuator 1722. The engagement of the cable mechanism of the top member 1720 with the first actuator 1722 may be similar to that described above with respect to the HMD 100. Additionally, the cable mechanism of the first side member 1710 and the second side member 1716 may engage with the second actuator 1800. The engagement of the cable mechanism of the first side member 1710 and the second side member 1716 with the second actuator 1800 may be similar to that described above with respect to the first side member 114 and the second side member 116, respectively, engaging with the second actuator 202. Additionally, cables may be routed within first side member 1710 and second side member 1716 as similarly discussed above with respect to first side member 114 and second side member 116 .

[0117] FIG 20A illustrates a cross-sectional view showing components of the HMD 100, such as the first side member 1710, the first loudspeaker 1724, and the first loudspeaker arm 1900. In some cases, the view shown in FIG 20A may represent a front cross-sectional view from the front 1702 to the rear 1704 of the HMD 1700. While FIG 20A illustrates and discusses components of the first side member 1710, the first loudspeaker 1724, and the first loudspeaker arm 1900, it should be understood that the second side member 1716, the second loudspeaker 1726, and the second loudspeaker arm 1902 may include similar components and / or function similarly.

[0118] The first loudspeaker 1724 may reside within the shell 2000. The shell 2000 may include a generally hemispherical shape within which the first loudspeaker 1724 resides, as shown. The first loudspeaker 1724 may be oriented to output sound toward the direction of the user. The first loudspeaker 1724 may include a speaker grill 2002 having an orifice that allows sound generated by the first loudspeaker 1724 to exit from within the shell 2000 toward the direction of the user. The speaker grill 2002 may be coupled to the shell 2000 via a snap fit, fasteners, adhesive, or the like.

[0119] The first loudspeaker arm 1900 may slidably engage with and into a ball joint 2004 for translating longitudinally within the first loudspeaker arm 1900. For example, as discussed above, the first loudspeaker arm 1900 may engage with a ball joint 2004 (or a component thereof) to allow the first loudspeaker arm 1900 to translate in a direction 1904. The direction 1904 may allow the first loudspeaker 1724 to be positioned horizontally and / or vertically relative to a user. For example, the ball joint 2004 may include a flange that engages into a slide or channel of the first loudspeaker arm 1900. This engagement may allow the first loudspeaker arm 1900 to slidably engage with the ball joint 2004. In other words, the ball joint 2004 can slide within the first loudspeaker arm 1900 to be positioned at various positions along the length of the first loudspeaker arm 1900.

[0120] The ball joint 2004 also pivotally couples to the first side member 1710 to change the position and / or orientation of the first loudspeaker 1724. For example, the ball joint 2004 may provide rotatable and / or pivotable movement to the first loudspeaker arm 1900. Thus, the first loudspeaker 1724 may be disposed in a variety of positions and / or orientations. For example, as the HMD 1700 accommodates a variety of users, the first loudspeaker 1724 may be adjusted to accommodate different users.

[0121] In some cases, the ball of the ball joint 2004 may extend from the first side member 1710 while the socket of the ball joint 2004 may be integrated into the first loudspeaker arm 1900. The first loudspeaker arm 1900 may couple to the first side member 1710 via a ball and socket engagement.

[0122] In some cases, wires, cables, or other filaments may be routed through the ball joint 2004 to communicatively couple the first loudspeaker 1724 with other portions of the HMD 1700. For example, as shown, one or more wires 2006 may be routed through the ball joint 2004. The wires 2006 may provide sound to the first loudspeaker 1724 for output. In doing so, the wires 2006 may be routed through the first loudspeaker arm 1900 to reach the first loudspeaker 1724. Additionally, the wires 2006 may be routed through the first side member 1710. However, in some cases, the HMD 1700 may include additional wires routed through the first side member 1710 and / or the first loudspeaker arm 1900 to communicatively couple to the first loudspeaker 1724.

[0123] FIG 20B illustrates the first loudspeaker 1724. In some cases, the view shown in FIG 20B may represent a top cross-sectional view from the top of the HMD 1700 toward the bottom of the HMD 1700. As mentioned above, the first loudspeaker arm 1900 may be coupled to the first side member 1710 via a ball joint 2004, and a wire 2006 may be routed through the ball joint 2004 and the first loudspeaker arm 1900.

[0124] 21 illustrates a detailed view of the HMD 1700 showing the routing of wires used to vertically adjust the position of the HMD 1700 on the user. As introduced above, the HMD 1700 may include a first tube 1906 and a second tube 1908 extending from the rear housing 1708. In some cases, the HMD 1700 may include additional tubes, such as a seventh tube 2100 extending from the rear housing 1708. The first tube 1906 and the seventh tube 2100 may be attached or coupled together.

[0125] The first tube 1906 may receive the first inner tube 2102, and the second tube 1908 may receive the second inner tube 2104. The first inner tube 2102 and the second inner tube 2104 may be coupled to the display housing 1706. As shown, the first inner tube 2102 and the second inner tube 2104 may extend from the display housing 1706 into the first tube 1906 and the second tube 1908, respectively. The first inner tube 2102 and the second inner tube 2104 may translate and / or slide into the first tube 1906 and the second tube 1908, respectively. In some cases, the first tube 1906 and / or the second tube 1908 may include a mechanism (e.g., a channel, tab, slot, protrusion, etc.) to allow translation of the first inner tube 2102 and the second inner tube 2104, respectively.

[0126] The HMD 1700 includes wires or cables routed through the first tube 1906, the second tube 1908, the seventh tube 2100, the first inner tube 2102, and / or the second inner tube 2104. For example, the HMD 1700 may include a first cable 2106 and a second cable 2108. In some cases, the first cable 2106 may correspond to an extension cable that, when pulled, lowers the display housing 1706 on the user. Meanwhile, the second cable 2108 may correspond to a retraction cable that, when pulled, raises the display housing 1706 on the user. The first cable 2106 and the second cable 2108 may be operably coupled to a first actuator 1722 to extend and retract their lengths (e.g., via spools or reels).

[0127] As shown, the first cable 2106 may be routed from the rear housing 1708, through the seventh tube 2100, and then into the first tube 1906. In some cases, an end of the first cable 2106 may be coupled to the first inner tube 2102 as location 2110. Additionally, the first cable 2106 may be wound or wrapped around open or more pulleys within or outside the seventh tube 2100 and / or the first tube 1906. Additionally, the pulleys may be located on the top member 1720. The second cable 2108 may be routed through the second tube 2108, through the second inner tube 2104, and coupled to the display housing 1706 at location 2112.

[0128] 22 illustrates an HMD 2200 having dual concentric knobs 2202 disposed at the rear of the HMD 2200. In some cases, the HMD 2200 may include similar components as the HMD 100 and / or HMD 1700. However, as shown in FIG. 22, the HMD 100 may include dual concentric knobs 2202 for tightening, loosening, and / or adjusting the vertical position of the HMD 2200 on the user.

[0129] The dual concentric knob 2202 may engage with one or more members to tighten and loosen the HMD 2200 on the user and / or adjust the vertical position of the HMD 2200. In some cases, one or more members may engage with the dual concentric knob 2202 within the rear housing of the HMD 2200. For example, an upper member may extend through the upper sleeve 2204 and engage with the dual concentric knob 2202. Side members may extend through the first and second side sleeves 2206 and 2208, respectively. In some cases, the upper sleeve 2204, the first side sleeve 2206, and / or the second side sleeve 2208 may represent a harness of the HMD 2200 that engages with the back of the head, or a rear housing of the HMD 2200.

[0130] The dual concentric knob 2202 may include a first knob 2210 and a second knob 2212. The first knob 2210 may be operable to adjust the vertical position of a display (or display housing) of the HMD 2200 on the head. The second knob 2212 may be operable to tighten and loosen the HMD 100 to a user. That is, an upper member disposed within the upper sleeve 2204 may be operably engaged with the first knob 2210. Side members disposed within the first side sleeve 2206 and the second side sleeve 2208 may be operably engaged with the second knob 2212.

[0131] As discussed herein, the first knob 2210 and the second knob 2212 may include gears that engage with slots in the top and side members, respectively. The side members may overlap to allow the side members to tighten and loosen. The first knob 2210 and the second knob 2212 may independently actuate in multiple directions. For example, the first knob 2210 may engage with the top member and rotate in a first direction (e.g., clockwise) to lower the display on the user and rotate in a second direction (e.g., counterclockwise) to raise the display on the user. The second knob 2212 may engage with the side member and rotate in a first direction (e.g., clockwise) to loosen the HMD 2200 and rotate in a second direction (e.g., counterclockwise) to tighten the HMD 2200.

[0132] 23A and 23B illustrate detailed views of the dual concentric knob 2202. In particular, FIG. 23A shows a side view of the dual concentric knob 2202 and FIG. 23B shows a cross-sectional view of the dual concentric knob 2202. As shown, the first knob 2210 can be embedded, nested, or reside within at least a portion of the second knob 2212.

[0133] The first knob 2210 may include a first member, mechanism, or shaft 2300 that extends through the second knob 2212 to adjust the vertical position of the HMD 2200. A first gear 2302 on the first shaft 2300 may engage with a slot located in or extending along the length of the top member. Rotating the first knob 2210 may cause the first gear 2302 to engage with the slot in the top member to raise or lower the display housing. A thrust bearing between the first gear 2302 and the second gear 2306 keeps the bands separated.

[0134] Similarly, the second knob 2212 may include a second member, mechanism, or shaft 2304. In some cases, the second shaft 2304 may be integrated within the second knob 2212 (e.g., as a single component). The second shaft 2304 may include a second gear 2306 that engages with a slot disposed in or extending along the length of a side member. As shown, the second gear 2306 may have a longer longitudinal length for engaging with multiple members (e.g., two side members) as compared to the first gear 2302, which may engage with a single member (e.g., a top member).

[0135] The first shaft 2300 may be coupled to a third gear 2308 to prevent backdriving of the top member and / or the first knob 2210. The third gear 2308 may represent a face gear that engages with a complementary face gear on the rear housing. For example, the teeth of the third gear 2308 may engage with teeth of an additional gear in the rear housing to prevent backdriving. Similarly, the second shaft 2304 may be coupled to a fourth gear 2310 to prevent backdriving of the side member and / or the second knob 2212. The fourth gear 2310 may represent a face gear that engages with a complementary face gear on the rear housing. For example, the teeth of the fourth gear 2310 may engage with teeth of an additional gear on the housing to prevent backdriving.

[0136] In some cases, a gap distance 2312 may be interposed between the first knob 2210 and the second knob 2212. A spring 2314 may be wrapped around a portion of the first shaft 2300 between a surface of the first knob 2210 and a surface of the second knob 2212 to position the first knob 2210 away from the second knob 2212. When a user wishes to adjust the position of the display housing vertically, the user may push the first knob 2210 to deflect the first knob 2210 inward. This deflection may disengage the third gear 2308 from a complementary gear in the rear housing, allowing the user to lower or raise the display housing. Although FIG. 23B illustrates the spring 2314 in a particular location, the spring 2314 may be located elsewhere in the rear housing and / or the dual concentric knob 2202.

[0137] 24A and 24B illustrate isometric views of the dual concentric knob 2202. As mentioned above, the dual concentric knob 2202 can include multiple actuators, such as a first knob 2210 that adjusts the vertical position of the display housing, and a second knob 2212 that operates to tighten and loosen against the side of the head.

[0138] As shown, the first knob 2210 and the second knob 2212 may be in a stacked relationship. In some cases, the first knob 2210 may be disposed in front of the second knob 2212, and the second knob 2212 may include a larger diameter than the first knob 2210. Additionally, the first knob 2210 and the second knob 2212 may be concentric.

[0139] 25 illustrates a rear isometric view of the HMD 2200 and shows the members engaged with the dual concentric knob 2202. The HMD 2200 may include a top member 2500 that engages with a first knob 2210 of the dual concentric knob 2202 to adjust the vertical position of the display. Additionally, the HMD 2200 may include a first side member 2502 and a second side member 2504 that engage with a second knob 2212 of the dual concentric knob 2202 to tighten / loosen the HMD 2200. Opposite ends of the top member 2500, the first side member 2502, and the second side member 2504 do not bond or engage with the dual concentric knob 2202 and may engage with a display or display housing. Additionally, each of the top member 2500, first side member 2502, and second side member 2504 may include a slot for engaging with the first knob 2210 or the second knob 2212, respectively.

[0140] FIG. 26 illustrates a rear view showing the dual concentric knob 2202 engaged with an upper member 2500, a first side member 2502, and a second side member 2504.

[0141] The top member 2500 includes a slot 2600 extending along at least a portion of the length of the top member 2500 and configured to engage with the first gear 2302 of the first knob 2210. Depending on the direction of actuation, the first knob 2210 engages the slot 2600 to either shorten the length of the top member 2500 (e.g., raise the display) or increase the length of the top member 2500 (e.g., lower the display).

[0142] The first side member 2502 includes a slot 2602 extending along at least a portion of the length of the first side member 2502 and configured to engage with the second gear 2306 of the second knob 2212. Additionally, the second side member 2504 includes a slot 2604 extending along at least a portion of the length of the second side member 2504 and configured to engage with the second gear 2306 of the second knob 2212. Depending on the direction of actuation, the second knob 2212 engages with the slot 2602 and the slot 2604 to shorten the length of the first side member 2502 and the second side member 2504 (e.g., tighten the HMD 2200) or to increase the length of the first side member 2502 and the second side member 2504 (e.g., loosen the HMD 2200).

[0143] In some cases, the top member 2500, the first side member 2502, and the second side member 2504 include flexible and / or semi-rigid materials for routing along or across the top of the head. For example, the top member 2500, the first side member 2502, and the second side member 2504 can be made from materials such as plastic, rubber, composite materials, etc.

[0144] 27 illustrates a rear view of the HMD 2200, showing the dual concentric knob 2202 engaged with the top member 2500, the first side member 2502, and the second side member 2504. Rotating the second knob 2212 in a first direction (e.g., clockwise) increases the overlapping relationship between the first side member 2502 and the second side member 2504. Rotating the second knob 2212 in the opposite direction decreases the overlapping relationship.

[0145] 28A-28C illustrate a planetary gear drive 2800 that may be used to tighten and loosen the HMD. In some examples, the planetary gear drive 2800 may be integrated into the HMD 2200.

[0146] The planetary gear drive 2800 is shown including gears and ratchets for tightening and loosening the HMD and / or vertically adjusting the position of the display of the HMD on the user. As shown in FIG. 28A, the planetary gear drive 2800 may include a knob 2802. The knob 2802 may be operatively coupled to a first gear 2804 and a second gear 2806. The first gear 2804 may engage with a slot in the side member (e.g., rack and pinion) to tighten and loosen the HMD on the user. The operation of the first gear 2804 with the side member may be similar to that described above with respect to the second gear 2306, the first side member 2502, and the second side member 2504. The second gear 2806 may engage with a slot in the top member (e.g., rack and pinion) to raise and lower the display on the user. The operation of the second gear 2806 with the upper member may be similar to that described above with respect to the first gear 2302 and the upper member 2500. Additionally, the planetary gear drive 2800 may include a third gear 2808 and a fourth gear 2810 to prevent backdriving.

[0147] In some cases, the planetary gear drive 2800 may be configured to extend / retract the top member, the first side member, and / or the second side member simultaneously (i.e., in parallel). That is, the planetary gear drive 2800 may include a single knob for adjusting the top member, the first side member, and / or the second side member simultaneously. The planetary gear drive 2800 may have planetary gears 2812 for extending / retracting the top member and the first / second side members by different lengths. For example, with the planetary gear 2812, a quarter turn of the knob 2802 may retract the top member by a first amount and retract the first and second side members by a second amount that is different from the first amount.

[0148] 29A-29C illustrate an exemplary gasket 2900 that couples to the display housing 108 (or the frame of the display housing 108), the display housing 1706 (or the frame of the display housing 1706), and / or the display housing of the HMD 2200.

[0149] 29A, the gasket 2900 may include a first side 2902 (or surface) for coupling to the display housing 108 and an opposing second side 2904 (or surface) for sealing against a user. The second side 2904 of the gasket 2900 may include features, contours, surfaces, and shapes to match the ergonomics of a user. This may allow the gasket 2900 to wrap around the forehead of the user and seal against the user's face. For example, when the HMD 100 and / or HMD 1700 are fastened to a user, the gasket 2900 may prevent or substantially prevent light from penetrating into the interior of the display housing 108 and / or display housing 1706.

[0150] As shown, the second side 2904 of the gasket 2900 may include a plurality of curved surfaces that generally correspond to the facial features of a user. For example, the second side 2904 may include or consist of a forehead portion 2906, a first cheek portion 2908, a second cheek portion 2910, and a nose portion 2912 that extends between the first cheek portion 2908 and the second cheek portion 2910. The forehead portion 2906 may curve and / or bend across the user's forehead and seal the gasket 2900 to the user along an upper portion. The first cheek portion 2908 and the second cheek portion 2910 may seal the gasket 2900 on the sides (e.g., against the cheeks of the user). The nose portion 2912 may seal the gasket 2900 along a lower portion.

[0151] Collectively, the forehead portion 2906, the first cheek portion 2908, the second cheek portion 2910, and the nose portion 2912 may aid in positioning or positioning the HMD 100 and / or HMD 1700 relative to the user's eyes. Additionally, the forehead portion 2906, the first cheek portion 2908, the second cheek portion 2910, and the nose portion 2912 may provide a continuous surface shaped to abut and conform to the user's head (or face).

[0152] The gasket 2900 is configured to deform and distort to provide a customized fit according to the user's preferences. For example, as introduced above, the HMD 100 and / or HMD 1700 may be fastened to the user's head to provide a different feel and / or to securely fit the user. In such a case, depending on the level of fastening, the gasket 2900 may maintain contact with the user's face. In this sense, the gasket 2900 may be elastic or include a degree of movement to abut against the user's face. This may be achieved by deformation (e.g., expansion and contraction) of the gasket 2900. For example, the gasket 2900 may include a middle portion 2914 interposed between the first side 2902 and the second side 2904. The middle portion 2914 may deflect, bend, roll, curl during fastening of the HMD 100 and / or HMD 1700. Moreover, the intermediate portion 2914 may stretch, unfold, or expand during loosening of the HMD 100 and / or HMD 1700. Such deformation of the intermediate portion 2914 may act to maintain contact with the user's face during loosening and tightening of the HMD 100 and / or HMD 1700 on the user.

[0153] In some cases, the gasket 2900 may be permanently coupled to the display housing 108 and / or the display housing 1706 via adhesives, fasteners, clamps, overholds, etc. Additionally or alternatively, in some cases, the gasket 2900 may be removably coupled to the display housing 108 and / or the display housing 1706 via magnets, hook and loop, press fit, snap fit, etc. For example, the gasket 2900 may be removably coupled to the display housing 108 and / or the display housing 1706 for cleaning and / or disinfection. Additionally, the display housing 108 and / or the display housing 1706 may be configured to receive multiple gaskets 2900, each gasket 2900 may include a respective contour, shape, size, etc. By alternating between the gaskets 2900, a user may achieve different feel and / or secure fit of the HMD 100 and / or the HMD 1700, and / or different gaskets may be for different sizes or shapes of faces.

[0154] The gasket 2900 may include a deformable material that conforms to the shape of a user. For example, in some cases, the gasket 2900 may be made from an elastomeric material (e.g., a synthetic or rubber material). Such a material may help conform to the user, provide a tight seal, and allow for repeated use, sterilization, cleaning, and reuse of the gasket 2900.

[0155] 29B shows a rear view of the gasket 2900, illustrating the second side 2904. As introduced above, the second side 2904 can include a continuous body for adjacently sealing against the user's face. In some cases, the second side 2904 can include a surface for sealing against the user's face. The surface can be flat, curved, and / or rounded. Such contours can help limit light intrusion and / or provide a comfortable feel.

[0156] 29C illustrates a cross-sectional view of the gasket 2900 along line AA in FIG. 29B. As shown, a first side 2902 of the gasket 2900 may include a surface for coupling to the display housing 108 and / or the display housing 1706, while a second side 2904 of the gasket 2900 may include a surface for engaging a user's face. In some cases, the surface of the second side 2904 may include a particular length, width, and / or height for abutting and sealing against the user's face. Moreover, as discussed above, the middle portion 2914 may span between the first side 2902 (or a surface of the first side 2902, a body, etc.) and the second side 2904 (or a surface of the first side 2902, a body, etc.).

[0157] The intermediate portion 2914 may stretch and contact to various lengths based on the tightening and loosening of the HMD 100 and / or HMD 1700 and to maintain contact with the user. For example, as shown in FIG. 29C, the intermediate portion 2914 may be in an extended state (e.g., the intermediate portion 2914 may not experience a compressive force). However, when the HMD 1700 and / or HMD 1700 is tightened, the intermediate portion 2914 may compress, buckle, roll, or fold on itself. For example, the intermediate portion 2914 near the forehead portion 2906 may deflect downward toward the nose portion 2912. When loosened, the intermediate portion 2914 may expand, unfold, or spread out. This elasticity of the intermediate portion 2914 may provide the gasket 2900 with some movement and / or movement to maintain contact with the user's face.

[0158] 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.

[0159] Although the subject matter has been described in language specific to structural features and / or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described. Rather, the particular features and acts are disclosed as example forms of implementing the claims.

Claims

1. A head mounted display, a display housing including a display; a rear housing containing an actuator, said actuator including an extension reel and a retraction reel; a rear harness coupled to the rear housing, the rear harness including a first arm and a second arm; a first member coupled to a first side of the display housing and extending in a direction toward the rear housing, the first member operatively engaging the first arm; a second member coupled to a second side of the display housing and extending in a direction toward the rear housing, the second member operatively engaging the second arm; and a first cable mechanism configured to extend and retract the first member at various lengths from the first arm, the first cable mechanism having a first extension cable wrapped in a first direction around an extension reel and a first retract cable wrapped in a second direction opposite the first direction around a retract reel; a second cable mechanism configured to extend and retract the second member at various lengths from the second arm, the second cable mechanism having a second extension cable wrapped around the extension reel in the first direction and a second retraction cable wrapped around the retraction reel in the second direction. Head-mounted display.

2. A face gasket comprising: a first portion coupled to the display housing; a second portion for engaging a user; and 10. The head mounted display of claim 1, further comprising a face gasket including: an intermediate portion disposed between the first portion and the second portion, the intermediate portion configured to deform to adjust a distance between the first portion and the second portion.

3. A first loudspeaker arm, a first end pivotally coupled to the first member; a first loudspeaker arm including a second end; a first loudspeaker coupled to the second end of the first arm; and a second loudspeaker arm, a first end pivotally coupled to the second member; a second loudspeaker arm including a second end; The head mounted display of claim 1 , further comprising: a second loudspeaker coupled to the second end of the second arm.

4. The second cable mechanism, One or more first pulleys; one or more second pulleys, the first extension cable is routed around the one or more first pulleys; the first reverse cable is routed around the one or more second pulleys; The second cable mechanism includes: one or more third pulleys; one or more fourth pulleys; the second extension cable is routed around the one or more third pulleys; The head mounted display of claim 1 , wherein the second retraction cable is routed around the one or more fourth pulleys.

5. Actuating the actuator in a third direction causes the first extension cable to extend the first member from the first arm; actuating the actuator in a fourth direction causes the first retraction cable to retract the first member over the first arm; actuating the actuator in the third direction causes the second extension cable to extend the second member from the second arm; The head mounted display of claim 1 , wherein actuating the actuator in the fourth direction causes the second retraction cable to retract the second member over the second arm.

6. The head mounted display of claim 1 , wherein the rear harness is pivotally coupled to the rear housing via a ball joint.

7. A head mounted display, The front and The rear and a first member extending between the front and rear sections, the first member being adjustable via actuation of a rotatable actuator and a first cable mechanism; wherein the first cable mechanism includes a first extension cable wrapped in a first direction around an extension reel of a rotatable actuator, and a first retraction cable wrapped in a second direction opposite to the first direction around a retraction reel of the rotatable actuator. a second member extending between the front and rear portions, the second member being adjustable via actuation of the rotatable actuator and a second cable mechanism; wherein the second cable mechanism includes a second extension cable wound around the extension reel in the first direction and a second retraction cable wound around the retraction reel in the second direction. A head mounted display.

8. a first loudspeaker pivotally coupled to the first member via a first ball joint; The head mounted display of claim 7 , further comprising: a second loudspeaker pivotally coupled to the second member via a second ball joint.

9. a first loudspeaker arm including the first loudspeaker and a second loudspeaker arm including the second loudspeaker, the first loudspeaker arm slidably engages the first ball joint; The head mounted display of claim 8 , wherein the second loudspeaker arm slidably engages the second ball joint.

10. The first cable mechanism, one or more first pulleys associated with retracting the first member; one or more second pulleys associated with stretching the first member; wherein the first reverse cable is routed around the one or more first pulleys and the first extension cable is routed around the one or more second pulleys; The second cable mechanism includes: one or more third pulleys associated with retracting the second member; one or more fourth pulleys associated with stretching the second member; The head mounted display of claim 7 , wherein the second retraction cable is routed around the one or more third pulleys and the second extension cable is routed around the one or more fourth pulleys.

11. Further comprising: a first arm extending from said rear portion and operably engaging said first member; and a second arm extending from said rear portion and operably engaging said second member; at least one of the one or more first pulleys or the one or more second pulleys is disposed within or coupled to the first member or the first arm; The head mounted display of claim 10, wherein at least one of the one or more third pulleys or the one or more fourth pulleys is at least one of disposed within the second member or the second arm or coupled to the second member or the second arm.

12. A wearable display, The front and The rear and a first member extending between the front portion and the rear portion; a second member extending between the front portion and the rear portion; an actuator provided at the rear portion, wherein the length of the first member and the length of the second member are adjusted through the operation of the actuator, the actuator having an extension reel and a retraction reel; a first extension cable adapted to increase the length of the first member, wherein the first extension cable is wound in a first direction around the extension reel; a first retraction cable adapted to shorten a length of the first member, wherein the first retraction cable is wrapped around the retraction reel in a second direction opposite the first direction; a second extension cable adapted to increase the length of the second member, wherein the second extension cable is wound around the extension reel in the first direction; a second retraction cable adapted to shorten the length of the second member, wherein the second retraction cable is wrapped around the retraction reel in the second direction; A wearable display comprising:

13. Actuating the actuator in a third direction stretches the first member and the second member to relax the wearable display; The wearable display of claim 12 , wherein actuating the actuator in a fourth direction retracts the first member and the second member to clamp the wearable display.

14. a first loudspeaker pivotally coupled to the first member via a first ball joint; The wearable display of claim 12 , further comprising: a second loudspeaker pivotally coupled to the second member via a second ball joint.

15. a display housing located at the front; a face gasket coupled to the display housing, a first portion coupled to the display housing; a second portion for engaging a user; and 13. The wearable display of claim 12, further comprising a face gasket including: an intermediate portion disposed between the first portion and the second portion, the intermediate portion configured to deform to adjust a distance between the first portion and the second portion.

16. The wearable display of claim 12 , wherein the first member and the second member are configured to overlap at the rear portion.

17. The vehicle further includes a rear housing disposed at the rear, the rear housing including a first gear, The wearable display of claim 12 , wherein the actuator further includes a second gear that engages with the first gear to reduce back-driving of the actuator.

18. A display housing disposed at the front portion and a rear harness disposed at the rear portion, a first end of the first member coupled to the display housing; a second end of the first member disposed within the rear harness; a first end of the second member coupled to the display housing; The wearable display of claim 12 , wherein the second end of the second member is disposed within the rear harness.

19. The method of claim 19, wherein the first ball joint is engaged with a first channel of the first loudspeaker arm to slidably engage the first loudspeaker arm with the first ball joint; The head mounted display of claim 9 , wherein the second ball joint is engaged with a second channel of the second loudspeaker arm to slidably engage the second loudspeaker arm with the second ball joint.

20. A head mounted display as described in claim 7, further comprising a third member extending between the front and rear portions, the third member being adjustable in length.

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