TW202223488A - Positioning, stabilising, and interfacing structures and system incorporating same - Google Patents

Abstract

A head-mounted display system includes a positioning and stabilising structure structured and arranged to hold a display unit in an operational position over a user's face in use and an interfacing structure for the display unit constructed and arranged to be in opposing relation with the user's face. The interfacing structure comprises a substantially continuous face engaging surface adapted to contact the user's face around a periphery of the user's eyes. The interfacing structure comprises silicone. The interfacing structure is configured and arranged such that force applied to the user's face is distributed around the periphery thereof. The interfacing structure comprises a first compliance at a first region and a second compliance at a second region, wherein the first region and the second region are configured around the periphery of the interfacing structure to allow selective distribution of the force onto the user's face.

Description

Positioning, Stabilization and Interface Structure and Systems Containing The Same

The present technology generally relates to head mounted displays, positioning and stabilization structures, user interface structures and other components for head mounted displays, related head mounted display components and systems, including display units and positioning and stabilization structures, interfaces Structure and or components and methods. The present technology finds particular application in the use of virtual reality head mounted displays and is described in this context. It should be appreciated, however, that the present technology may have broader application and may be used in other head mounted display devices including augmented reality displays.

head mounted display

It should be understood that if any prior art is mentioned herein, the reference does not constitute an admission that the prior art forms part of the common general knowledge in the field in Australia or any other country.

Virtual reality head-mounted displays enable users to have a fully immersive experience of a virtual environment and have wide-ranging applications in fields such as communications, training, medical and surgical practice, engineering, and video gaming.

Virtual reality head mounted displays are typically provided as systems or elements comprising a display unit arranged to remain in an operating position in front of a user's face. The display unit typically includes: a housing containing the display; and a user interface structure constructed and arranged in opposing relation to the user's face, ie the user interface structure faces or is placed opposite the user's face. A user interface structure may extend around the display and define, in conjunction with the housing, a viewing opening to the display. The user interface structure may engage the user's face and include padding for user comfort and/or be light-tight to cut off ambient light from the display. The head mounted display system further includes a positioning and stabilizing structure arranged on the user's head to maintain the display unit in place.

interface structure

The head mounted display may include a user interface structure. Since it is in direct contact with the user's face, the shape and configuration of the interface structure has a direct impact on the effectiveness and comfort of the display unit.

The design of the user interface structure presents many challenges. The face has complex three-dimensional shapes. The size and shape of the nose and head vary widely between individuals. Because the head includes bone, cartilage, and soft tissue, different areas of the face respond differently to mechanical forces.

One type of interface structure extends around the perimeter of the display unit and is intended to seal against the user's face when force is applied to the user interface, wherein the interface structure is in face-to-face engagement with the user's face. The interface structure may include a liner made of polyurethane (PU). With this type of interface structure, there is often a gap between the interface structure and the face, and additional force will be required to force the display unit against the face in order to achieve the desired contact.

An area completely unoccupied by the display unit may allow a gap to form between the facial interface and the user's face through which undesired light pollution can enter the display unit. Light pollution can reduce the effectiveness and enjoyment of the user's overall VR experience. Furthermore, previous systems can be difficult to adjust to be able to apply to various head sizes. Still further, the display unit and associated positioning and stabilizing structures can often be relatively heavy and can be difficult to clean, which can therefore further limit the comfort and usability of the system.

Another type of interface structure incorporates a sheet seal of thin material on a portion of the perimeter of the display unit to provide a seal against the user's face. As with previous types of interface structures, if the face does not fit well with the interface structure, additional force may be required to achieve the seal, or light may leak into the display unit during use. Furthermore, if the shape of the interface structure does not match the shape of the user, it may wrinkle or bend in use, resulting in undesired light transmission.

Positioning and Stabilizing Structures

In order to maintain the display unit in its correct operating position, the head mounted display system further comprises positioning and stabilizing structures arranged on the user's head. In the past, these positioning and stabilizing structures were formed from deployable rigid structures, with straps or deployable rigid structures typically applied under tension to the user's head to hold the display unit in its operative position. Such systems tend to apply clamping pressure on the user's face, which can cause discomfort to the user at localized pressure points. Also, previous systems can be difficult to adjust to achieve a wide range of head sizes. Additionally, the display unit and associated positioning and stabilizing structures are often heavy and difficult to clean, further limiting the comfort and usability of the system.

Certain other head mounted display systems may not be functionally compatible with this technology. For example, positioning and stabilizing structures designed for decorative and visual aesthetics may not have the structural ability to maintain appropriate pressure around the face. For example, too much clamping pressure may cause discomfort to the user, or alternatively, insufficient clamping pressure on the user's face may not effectively seal the display from ambient light.

Certain other head mounted display systems may be uncomfortable or impractical with the present technology. For example, if the system is used for extended periods of time.

Due to these challenges, some head mounted display systems face one or more of the following: obtrusive, unattractive, expensive, disproportionate, difficult to use, and especially when worn for extended periods of time or when the user is unfamiliar with the system uncomfortable. Wrongly sized positioning and stabilizing structures can result in reduced comfort, which in turn shortens the life cycle.

Thus, the interface face of the user interface for a fully immersive experience of the virtual environment is subjected to forces corresponding to the user's movements during the experience.

Material

Materials for the head mounted display assembly include: dense foam for the contact portion in the interface structure, a rigid shell for the housing, and a positioning and stabilizing structure formed by a rigid plastic clamping structure. These materials have various disadvantages, including not allowing the skin covered by the material to breathe, being inflexible, difficult to clean and prone to accumulation of bacteria. As a result, products made from such materials can be uncomfortable to wear for extended periods of time, causing skin irritation in some individuals and limiting the application of the product.

Therefore, there is a need for an improved system that does not have the aforementioned disadvantages.

[Reference to Related Applications] This application claims PCT Patent Application No. PCT/AU2020/051158, filed March 27, 2020, which is incorporated herein by reference in its entirety.

A portion of the disclosure of this patent document contains material that is subject to copyright protection. The copyright owner has no objection to the reproduction by anyone of the patent file or patent disclosure, as it appears in the Patent Office file or records, but otherwise reserves any and all copyright rights whatsoever.

One aspect of the present technology relates to a positioning and stabilizing structure for a head mounted display system (or user interface), the positioning and stabilizing structure including a rear support structure arranged for contact use in use the back area of the person's head. In some forms, the posterior support structure includes a cuff having an occipital portion and a parietal portion.

The cuff or at least one of its occipital and parietal portions may be elastically extendable along at least a portion of its length. In some forms, the cuff is flexible along at least a portion of its length. In some forms, where the rear support structure is a cuff, the occipital portion may extend to the lower portion of the user's head such that it resists upward movement (due to its position in contact with the occipital region of the head) and thereby provides the system with anchor. In some forms, the cuff is oriented in a generally vertical plane (eg, a vertical plane including the coronal plane).

In some forms, the rear support structure is positioned behind the base point of the user's upper ear.

Another aspect of the present technology relates to a positioning and stabilizing structure for a head mounted display system, the positioning and stabilizing structure including a back support and a front support arranged to contact a user in use a rear area of the head, the anterior support is arranged to contact the anterior area of the user's head in use, the dorsal and anterior supports extend transversely to the sagittal plane. In some forms, the positioning and stabilizing structure further includes an adjustment mechanism to allow adjustment between the back support and the front support.

In some forms, the adjustment mechanism allows for lateral adjustment between the rear support portion and the front support portion. In some forms, the adjustment mechanism allows for angular adjustment between the rear support portion and the front support portion.

Another aspect of the present technology relates to a positioning and stabilizing structure for a head mounted display system, the positioning and stabilizing structure including a rear support and a front support arranged to contact a user in use a posterior region of the head, the anterior support is arranged to contact the anterior region of the user's head in use, the posterior and anterior supports extend transversely to the sagittal plane and are laterally offset from each other.

In some forms, the posterior support or occipital support is biased into contact with the occipital region of the user.

Another aspect of the present technology relates to a positioning and stabilizing structure for a head-mounted display system, comprising: a support portion arranged to accommodate, in use, the weight of a display unit of the head-mounted display system; and one or more An adjustment mechanism that allows adjustment of the position of the display unit relative to the support.

In some forms, the adjustment of the display unit relative to the support may be angled relative to the user's head and/or in a front-to-rear direction.

Another aspect of the present technology relates to a positioning and stabilization structure for a head mounted display system that includes a stretchable and rigid elastic member that is substantially inextensible and elastic.

In some forms, the positioning and stabilizing structure further comprises opposing connectors disposed on opposite sides of the user's head and extending in use along a temporal region of the user's head to interconnect the rear support structure or supports to each other connected to the display unit.

In some forms, the connector is rigid along at least a portion of its length. In some forms, each connector includes an arm having one of a front end connected to the display unit and a rear end or support portion connected to the rear support structure. In some forms, the arms are rigid. In some forms, the rear end of the arm is disposed at or behind the user's supra-aural base.

In some forms, the at least one connector further includes an adjustment mechanism for adjusting the positioning and stabilizing structure to accommodate heads of different sizes. In some forms, the adjustment mechanism is provided at the connection between the posterior end of the temporal arm and the posterior support structure.

In some forms, the positioning and stabilizing structure includes one or more connecting tabs that connect to the arms of the connector (ie, the connector arms), and the adjustment mechanism allows the effective length of the connecting tabs to be adjusted. In some forms, the rear end of the connector arm includes an eyelet arranged to receive the tab, and the adjustment mechanism includes a releasable fastening device to fasten the tab to the temporal arm. In some forms, the releasable fastening means may be arranged to fasten the free end of the tab back onto the proximal portion of the tab. Releasable fastening means may take other forms, such as clips or retainers that allow friction, interference, snap or other mechanical securing means.

In some forms, the positioning and stabilizing structure may further include a forehead support connector. In some forms, the forehead support connector may extend generally in the direction of the sagittal plane and connect the posterior or anterior support to the upper edge region of the display unit. In some forms, the forehead support connector may include a strap. In some forms, the strap of the forehead support connector is elastically extendable along at least a portion of its length. In some forms, the strap of the forehead support connector may be flexible along at least a portion of its length.

In some forms, the forehead support connector may also include an adjustment mechanism for adjusting the positioning and stabilizing structure to accommodate heads of different sizes. In some forms, the adjustment mechanism may adjust the effective length of the strap of the forehead support connector when the forehead support connector is in that form.

In some forms, the forehead support connector further includes a forehead support rigidiser that provides rigidity to a portion of the forehead support connector. In some forms, the forehead support rigidizer provides rigidity to a portion of the forehead support connector positioned along the forehead region of the user's head. The extension and positioning of the forehead support rigidity may account for proper positioning of the display unit and relieve pressure applied to the user's cheekbones. In some forms, the forehead support rigidizer may be adjustable (angular or translational) on other components of the forehead support connector (or adapted to be adjustable (angular or translational) relative to other components of the forehead support connector )), such as straps for the forehead support connector, to enable fine positioning of the head-mounted display unit and help improve user comfort and fit.

In some forms, the positioning and stabilizing structure further includes additional rigidizers that can bridge other portions of the structure, such as the rear support structure, front or rear supports, and/or connector arms. In some forms, these additional rigid members may be described to control the movement of the display unit about the rear support structure to further stabilize and support the system. In some forms, these additional rigid members can limit articulation movement at the junction of the temporal connector with the posterior support structure. In some forms, these additional rigid members may also extend along the occipital region of the posterior support structure to further anchor the display unit in its proper operative position. In some forms, these additional rigid members may be adjustable (angular or translational) on other components of the forehead support connector (or adapted to be adjustable relative to other components of the forehead support connector ( angled or pan)) to further aid comfort, adjustability and fit.

In some forms, the positioning and stabilizing structure may allow upward (eg, upward) pivotal movement of the display unit to allow movement of the display unit to a non-operating position without removing the positioning and stabilizing structure (eg, flip-up) . In some forms, the pivotal movement of the display unit involves pivoting means including positioning and stabilizing structures. In some forms, the pivoting means may provide a release mechanism at the forehead support connector and/or a limited articulation area at the temporal connector.

Any of the above-described positioning and stabilizing structures may be incorporated into, or integrated into, or releasably attached to, a protective cap or other headwear. The positioning and stabilizing structure may also include other components integrated therein, such as audio, tactile (tactile) stimulation or feedback.

Another aspect of the present technology relates to an interface structure for a head mounted display unit that is constructed and arranged to be in opposing relation to a user's face.

In some forms, the interface structure includes a face-engaging surface that includes one or more regions of silicone, or one or more layers of fabric material or foam.

In some forms, the interface structure may have varying compliance to allow for a more selective distribution of forces to the user's face. In some forms, one or more regions of the face-engaging surface may be formed with varying thicknesses and/or varying surface finishes such that when pressed against the user's face in use, the resulting The face engaging surface may have variable compliance therealong.

In some forms, the interface structure includes a face joint, a support structure that supports the face joint in place, and a chassis that may be rigid (ie, a rigid chassis).

Another aspect of the present technology relates to an interface structure for a head mounted display system that extends around a display and defines a viewing opening of the display. In some forms, the interface structure may include a plurality of adjustable face engagement portions located on respective ones of left-hand and right-hand sides of the interface structure. The adjustable face engaging portions are movable relative to each other.

In some forms, the adjustable face engagement portion is movable relative to the chassis of the interface structure. The interface structure may include an adjustment mechanism, such as a sliding earth piece (or slidable tab) or a rack and pinion type adjustment mechanism, to allow the user to selectively adjust the spacing of the face engaging portions.

In some forms, the interface structure includes components and/or regions that are removably mounted to the housing of the display unit.

One aspect of the present technology relates to a head mounted display system that includes a positioning and stabilizing structure constructed and arranged to maintain a display unit in an operating position over a user's face. The positioning and stabilizing structure includes a support cuff including a rear support portion adapted to contact a rear region of the user's head and a front support portion adapted to contact a front region of the user's head. The rear support portion of the support hoop is adapted to extend in a first plane, and the front support portion of the support hoop is adapted to extend in a second plane, and the first plane of the rear support portion and the second plane of the front support portion Each of the is adapted to extend transversely to the sagittal plane. The support cuff includes an offset configuration in which the rear support portion is offset from the front support portion such that the first plane of the rear support portion is arranged in line with the rear support portion. The second plane of the front support portion is in a different plane. In an example, the head mounted display system may further include a display unit.

One aspect of the present technology relates to positioning and stabilizing structures that maintain a display unit in an operating position over a user's face. The positioning and stabilizing structure includes a support cuff including a rear support portion adapted to contact a rear region of the user's head and a front support portion adapted to contact a front region of the user's head. The rear support portion of the support hoop is adapted to extend in a first plane, and the front support portion of the support hoop is adapted to extend in a second plane, and the first plane of the rear support portion and the second plane of the front support portion Each of the is adapted to extend transversely to the sagittal plane. The support cuff includes an offset configuration in which the rear support portion is offset from the front support portion such that the first plane of the rear support portion is arranged in line with the rear support portion. The second plane of the front support portion is in a different plane.

One aspect of the present technology relates to a head mounted display system that includes a positioning and stabilizing structure constructed and arranged to maintain a display unit in an operating position over a user's face. The positioning and stabilizing structure includes a support cuff including a rear support portion adapted to contact a rear region of the user's head and a front support portion adapted to contact a front region of the user's head. The rear support portion of the support hoop is adapted to extend in a first plane and the front support portion of the support hoop is adapted to extend in a second plane. Each of a plane and a second plane of the anterior support is adapted to extend transverse to the sagittal plane. The rear support and the front support are movable relative to each other into at least an offset configuration in which the rear support is offset from the front support such that the The first plane of the rear support is arranged in a different plane than the second plane of the front support. In an example, the head mounted display system may further include a display unit.

In an example, the head mounted display system may further include an adjustment mechanism constructed and arranged to allow selectable adjustment of the rear support portion relative to the front support portion. In an example, an adjustment mechanism may be constructed and arranged to allow in (1) an in-line configuration wherein the first plane of the rear support is arranged coplanar with the second plane of the front support A selectable adjustment is made between the at least one offset configuration of (2). In one example, the at least one offset configuration forms a separation or displacement between the first plane and the second plane, and the adjustment mechanism allows for selectable adjustment of the separation or displacement. In an example, the adjustment mechanism may allow for angular adjustment of the angle formed between the first plane of the rear support and the second plane of the front support. In an example, the rear support may include elastic straps that are biased into contact with the user's occipital region. In an example, the rear support may be configured and arranged to engage the user's head along a portion of the occiput. In an example, the anterior support may be configured and arranged to engage the user's head along the upper portion of the frontal bone. In an example, the head mounted display system may further include at least one connector constructed and arranged to interconnect the rear support and the front support to the display unit. In an example, the rear support portion and the front support portion in the offset configuration may generate a moment configured to cancel or resist a moment induced by the display unit. In an example, the rear support includes elastic straps that are biased into contact with a portion of the occipital bone, the elastic straps generating additional moments to counteract or resist caused by the display unit torque. In an example, the display unit includes a housing including a display visible to a user when the head-mounted display unit is in the operating position, and an interface structure constructed and arranged to interact with The user's faces are in opposing relationship, and the user interface structure extends around the display and defines a viewing opening to the display. In an example, the positioning and stabilizing structure may further comprise a pair of central support structures, each of the pair of central support structures is adapted to be positioned about a respective one of the user's ears, and wherein the display unit is rotatable grounded to the pair of central support structures to enable the display unit to rotate relative to the Frankfurt level. In an example, at least one of the front support and the rear support may be rotatable relative to the pair of central support structures.

One aspect of the present technology relates to positioning and stabilizing structures that maintain a display unit in an operating position over a user's face. The positioning and stabilizing structure includes a support cuff including a rear support portion adapted to contact a rear region of the user's head and a front support portion adapted to contact a front region of the user's head. The rear support portion of the support hoop is adapted to extend in a first plane, and the front support portion of the support hoop is adapted to extend in a second plane, and the first plane of the rear support portion and the second plane of the front support portion Each of the is adapted to extend transversely to the sagittal plane. The rear support and the front support are movable relative to each other into at least an offset configuration in which the rear support is offset from the front support such that the The first plane of the rear support is arranged in a different plane than the second plane of the front support.

In an example, the positioning and stabilizing structure may further include an adjustment mechanism constructed and arranged to allow selectable adjustment of the rear support portion relative to the front support portion. In an example, an adjustment mechanism may be constructed and arranged to allow in (1) an in-line configuration wherein the first plane of the rear support is arranged coplanar with the second plane of the front support A selectable adjustment is made between the at least one offset configuration of (2). In one example, the at least one offset configuration forms a separation or displacement between the first plane and the second plane, and the adjustment mechanism allows for selectable adjustment of the separation or displacement. In an example, the adjustment mechanism may allow for angular adjustment of the angle formed between the first plane of the rear support and the second plane of the front support. In an example, the rear support may include elastic straps that are biased into contact with the user's occipital region. In an example, the rear support may be configured and arranged to engage the user's head along a portion of the occiput. In an example, the anterior support may be configured and arranged to engage the user's head along the upper portion of the frontal bone. In an example, the positioning and stabilizing structure may further include at least one connector constructed and arranged to interconnect the rear support portion and the front support portion to the display unit. In an example, the rear support portion and the front support portion in the offset configuration may generate a moment configured to cancel or resist a moment induced by the display unit. In an example, the portion of the rear support includes an elastic strap that is biased into contact with a portion of the occipital bone, the elastic strap creating an additional moment to counteract or resist the display by the display The moment caused by the element. In an example, the positioning and stabilizing structure may further comprise a pair of central support structures, each of the pair of central support structures is adapted to be positioned about a respective one of the user's ears, and wherein the display unit is rotatable grounded to the pair of central support structures to enable the display unit to rotate relative to the Frankfurt level. In an example, at least one of the front support and the rear support may be rotatable relative to the pair of central support structures.

One aspect of the present technology relates to a head mounted display system that includes a positioning and stabilizing structure constructed and arranged to, in use, maintain a display unit in an operative position over a user's face. The positioning and stabilizing structure includes a support portion configured and arranged to accommodate the weight of the head mounted display unit. The support portion includes a pair of central support structures, each of the pair of central support structures being adapted to be positioned about a respective one of the user's ears. In an example, the display unit is rotatably connected to the pair of central support structures to enable the display unit to rotate relative to the Frankfurt level. In an example, the head mounted display system may further include a display unit.

One aspect of the present technology relates to positioning and stabilizing structures that maintain a display unit in an operating position over a user's face. The positioning and stabilizing structure includes a support portion configured and arranged to accommodate the weight of the display unit. The support portion includes a pair of central support structures, each of the pair of central support structures being adapted to be positioned about a respective one of the user's ears. The display unit is rotatably connected to the pair of central support structures to enable the display unit to rotate relative to the Frankfurt level.

One aspect of the present technology relates to a head mounted display system that includes a positioning and stabilizing structure constructed and arranged to, in use, maintain a display unit in an operative position over a user's face. The positioning and stabilizing structure includes a rear support portion adapted to contact the rear region of the user's head and a front support portion adapted to contact the front region of the user's head. The rear support includes a substantially inextensible and substantially resilient rigid member. The rigidizer includes a plurality of slots on at least one side of the rigidizer, and the plurality of slots form a plurality of hinges. In an example, the head mounted display system may further include a display unit.

One aspect of the present technology relates to positioning and stabilizing structures that maintain a display unit in an operating position over a user's face. The positioning and stabilizing structure includes a rear support portion adapted to contact the rear region of the user's head and a front support portion adapted to contact the front region of the user's head. The rear support includes a substantially inextensible and substantially resilient rigid member. The rigidizer includes a plurality of slots on at least one side of the rigidizer, and the plurality of slots form a plurality of hinges.

One aspect of the present technology relates to a head mounted display system comprising: a positioning and stabilizing structure constructed and arranged to, in use, maintain a display unit in an operating position over a user's face; and An interface structure for a display unit constructed and arranged to be in opposing relation to a user's face. The interface structure includes a substantially continuous face-engaging surface adapted to contact the user's face around the periphery of the user's eyes. The interface structure includes silicone. The interface is configured and arranged such that the force applied to the user's face is distributed around its perimeter. The interface structure includes a first compliance at a first region and a second compliance at a second region, wherein the first region and the second region are configured to surround the perimeter of the interface structure to Allowing the force to be selectively distributed over the user's face. In an example, the head mounted display system may further include a display unit.

Another aspect of the present technology relates to an interface structure for a display unit that is constructed and arranged in opposing relation to a user's face. The interface structure includes a substantially continuous face-engaging surface adapted to contact the user's face around the periphery of the user's eyes. The interface structure includes silicone. The interface is configured and arranged such that the force applied to the user's face is distributed around its perimeter. The interface structure includes a first compliance at a first region and a second compliance at a second region, wherein the first region and the second region are configured to surround the perimeter of the interface structure to Allowing the force to be selectively distributed over the user's face.

One aspect of the present technology relates to a head mounted display system comprising: a positioning and stabilizing structure constructed and arranged to, in use, maintain a display unit in an operating position over a user's face; and An interface structure for a display unit, constructed and arranged in opposing relation to a user's face, the interface structure extending around the display and defining (or forming) a viewing opening for the display, when the display unit is in its place In the operating position, the display is visible to the user. The interface structure includes face engaging portions at respective left and right hand sides of the viewing opening, the face engaging portions being constructed and arranged to slidably move relative to each other. In an example, the head mounted display system may further include a display unit.

Another aspect of the present technology relates to an interface structure for a display unit that is constructed and arranged in opposing relation to a user's face. The interface structure extends around the display and defines (or forms) a viewing opening of the display, which is visible to the user when the display unit is in the operating position. The interface structure includes movable face engaging portions at respective ones of the left and right hand sides of the viewing opening, the movable face engaging portions constructed and arranged to slidably move relative to each other.

Another aspect of the present technology relates to a head mounted display system or element including any form of positioning and stabilizing structure and/or interface structure described above, and a display unit coupled thereto.

Another aspect of the technology includes a virtual reality display interface or device that includes examples of aspects of the head mounted display system described above.

In examples of aspects of the head mounted display system described above, the display unit includes a display configured to selectively output a computer-generated image that is visible to a user in the operating position.

In the above example of aspects of the head mounted display system, the display unit includes a housing.

In some forms, the housing supports the display.

In an example of an aspect of the head mounted display system described above, the display unit includes an interface structure coupled to the housing and arranged to be opposite the face of the user in the operative position relation.

In some forms, the interface structure at least partially forms a viewing opening configured to at least partially receive the user's face in the operative position.

In some forms, the interface structure is at least partially constructed of an opaque material configured to at least partially block ambient light from reaching the viewing opening in the operational position.

In an example of an aspect of the head mounted display system described above, the display unit includes at least one lens coupled to the housing and disposed within the viewing opening and aligned with the display so as to be in the operating position.

v In some forms, the user can view the display through at least one lens.

In the above example of aspects of the head mounted display system, the control system has at least one sensor in communication with the processor.

In some forms, at least one sensor is configured to measure the parameter and communicate the measurement to the processor.

In some forms, the processor is configured to alter the computer-generated image output by the display based on the measurements.

Another aspect of the present technology includes an augmented reality display interface or device including examples of aspects of the head mounted display system described above.

In examples of aspects of the head mounted display system described above, the display unit includes a display constructed of a transparent or translucent material and configured to selectively provide a computer-generated image viewable by a user.

In the above example of aspects of the head mounted display system, the display unit includes a housing.

In some forms, the housing supports the display.

In an example of an aspect of the head mounted display system described above, the display unit includes an interface structure coupled to the housing and arranged to be opposite the face of the user in the operative position relation.

In the above examples of aspects of the head mounted display system, in the operating position, the positioning and stabilizing structure is configured to support the display unit.

In the examples of aspects of the head mounted display system described above, the display is configured to be aligned with the user's eyes in the operating position such that the user can at least partially view the physical environment through the display regardless of computer-generated output from the display image.

In an example of the aspect of the head mounted display system described above, the head mounted display system further includes a control system having at least one sensor in communication with the processor.

In some forms, at least one sensor is configured to measure the parameter and communicate the measurement to the processor.

In some forms, the processor is configured to alter the computer-generated image output by the display based on the measurements.

In some forms, the at least one lens includes a first lens configured to align with the user's left eye in the operating position and a first lens configured to align with the user's right eye in the operating position the second lens

In some forms, the first lens and the second lens are Fresnel lenses.

In some forms, the display includes a binocular display divided into a first segment and a second segment, the first segment aligned with the first lens and the second segment aligned with the second lens.

In some forms, the controller has at least one button selectively engageable by a user's finger, the controller is in communication with the processor and is configured to send a message to the processor when the at least one button is engaged a signal, the processor is configured to alter a computer-generated image output by the display based on the signal.

In some forms, the at least one lens includes a first lens configured to align with the user's left eye in the operating position and a first lens configured to align with the user's right eye in the operating position the second lens.

Of course, some of these aspects may form sub-aspects of the present technology. The sub-aspects and/or individual aspects of the aspects may be combined in various ways and also constitute other aspects or sub-aspects of the technology.

Other features of the technology will become apparent in view of the information contained in the following detailed description, abstract, drawings and claims.

Before the present technology is described in further detail, it is to be understood that the present technology is not limited to the specific examples described herein, which may vary. It is also to be understood that the terminology used in this disclosure is for the purpose of describing the specific examples described herein only and is not intended to be limiting.

The following description is provided in relation to various examples that may share one or more common features and/or characteristics. It should be understood that one or more features of any one example may be combined with one or more features of another example or other examples. Additionally, in any of the examples, any single feature or combination of features may constitute a further example.

Head mounted display systems in accordance with examples of the present technology are constructed and arranged to provide a balanced system, that is, without over-tightening at any singularity along the user's head and/or face, while providing a system that surrounds the user's eyes is substantially completely sealed, ie, provides or facilitates full immersion in the use of a virtual reality head-mounted display. That is, head mounted display systems according to examples of the present technology provide a more uniform fit, structured and arranged to distribute pressure (eg, general and regional load distribution) in a comfortable and stable manner to reduce hot spots or localized stress points.

Furthermore, head mounted display systems according to examples of the present technology include a soft and flexible (eg, elastic) material (eg, a breathable material, eg, a fabric-foam composite) constructed and arranged to allow contact with a user's head The top is more consistent and cushioned for comfort. Furthermore, head mounted display systems according to examples of the present technology include a simple adjustment mechanism to facilitate adjustment on the user's head and allow a wide fit range.

head mounted display

Positioning and Stabilizing Structures

In order to maintain the display unit in its correct operating position, the head mounted display system further comprises positioning and stabilizing structures arranged on the user's head. A comfortable positioning and stabilizing structure needs to be able to accommodate loads caused by the weight of the display unit in a manner that minimizes discomfort from face imprinting and prolonged use. There is also a need to allow for a universal fit without sacrificing comfort, usability and manufacturing costs. Design criteria may include tunability over a predetermined range of low-touch simple setup solutions with low dexterity thresholds. Further considerations include catering to dynamic environments in which head mounted display systems may be used. As part of the immersive experience of the virtual environment, the user can communicate, ie speak, while using the head mounted display system. In this way, the user's jaw or mandible can move relative to the other bones of the skull. Additionally, the entire head may move during use of a head-mounted display system (eg, a virtual reality display). For example, movement may include movement of the user's upper and, in some cases, lower body, and in particular, movement of the head relative to the upper and lower body.

3a and 3b illustrate a positioning and stabilization structure 14 for a head mounted display system or element 10 according to a first example of the present technology. The head mounted display system 10 includes a head mounted display unit 12 (or display unit 12), and positioning and stabilizing structure 14 for maintaining the display unit 12 in an operative position above the user's face in use.

The display unit 12 includes a user interface structure 11 that is constructed and arranged in opposing relation to the user's face, ie the user interface structure faces or is positioned opposite the user's face, as shown in Figure 3c. The user interface structure 11 extends around the display housed by the display unit housing 22 . The user interface structure 11 may extend around the display and define a viewing opening (ie, an opening for viewing) to the display. The user interface structure 11 extends around the user's eyes and can engage (eg, light seal) the user's face, eg, along the user's nose, cheeks, and/or forehead.

In the example of Figures 3a to 3c, the positioning and stabilizing structure 14 includes a rear support cuff 16 (also referred to as a rear support structure) adapted to contact an area of the user's head (eg, positionable) and at least one connector At the top of the user's head), a connector is constructed and arranged to interconnect (connect) the rear support cuff 16 and the display unit 12 . In the illustrated example, the at least one connector includes opposing temporal connectors 18 disposed on respective sides of the user's head that connect the rear support cuff 16 with the display unit housing of the display unit 12 Corresponding rear edge regions 20 of 22 are interconnected, and forehead support connectors 24 that extend across the user's frontal bone to interconnect (or connect) the rear support cuff 16 with the upper edge region 21 of the display unit housing 22 . It should be appreciated, however, that one or more connectors may be provided to interconnect the rear support cuff 16 with the head mounted display unit 12 .

Temporal connector

Each opposing temporal connector 18 includes a temporal arm 26 . Each temporal arm 26 includes a front end 28 that mounts to a corresponding rear edge region 20 of the display unit housing 22 and a rear end 30 that forms part of a releasable coupling to connect the temporal arm 26 to the rear support cuff 16 .

In some forms, each temporal arm 26 includes a rigid member 32 , a resilient (eg, elastomer and/or fabric) member 34 , and a tab 36 disposed at the rear end 30 for connection to the rear support cuff 16 . In one example, a portion of each temporal arm 26 contacts an area of the user's head in use, eg, above the user's ear, near the supraauricular base. In one example, the temporal arm 26 is arranged to extend, in use, generally along or parallel to the Frankfort Horizontal plane of the head, and is higher than the cheekbones of the user, eg, above the cheekbones.

An advantage of the positioning and stabilizing structure 14 is that it is relatively self-supporting and/or able to maintain its shape without being worn. This can make it more intuitive or obvious to the user how to use the positioning and stabilizing structure, and can be contrasted with a positioning and stabilizing structure that is completely floppy and does not maintain shape. In one form, the rigidizer provides the self-supporting aspect of positioning and stabilizing the structure.

rigid parts

In some forms of this technology, such as in rigidizer 32, rigidizer 32 may take the form of stiffened and/or thickened elements. In one form, the rigidizer 32 may be encapsulated within the elastic (eg, elastomeric and/or fabric) member 34 of each temporal arm 26 . For example, FIG. 3d shows an example of an elastic member 34 (eg, elastomer and/or fabric) in the form of a cover configured to enclose the rigid member 32 . In an example, the fabric component 34 includes a face-contacting side disposed on one side of the rigidizer 32, which can provide a soft face-contacting surface 35 adapted to contact a user's face in use. In some alternative forms, the rigidizer may be sewn or otherwise attached (eg, overmolded) to the elastic member 34, or the elastic member may be made of a material that can be selectively stiffened by heat treatment. For example, Figure 3e shows an example of an elastic member 34 (eg, elastomer and/or fabric) attached to the face-contacting side of the rigid member 32, which may provide a soft face-contact suitable for contacting the user's face in use Surface 35. In one example, elastic member 34 may comprise a fabric material or a fabric-foam composite (eg, a breathable material, eg, a multi-layer construction including an outer fabric layer and an inner foam layer) to provide soft support for rigid member 32 to cushion against resistance Rely on the user's head to optimize comfort. The rigidizer 32 may allow each temporal arm 26 or other components attached to or formed therewith to maintain the shape and configuration in use when not being worn by the user. Advantageously, maintaining the temporal arm 26 in use prior to use can prevent or limit deformation when the user puts on the positioning and stabilizing structure, and allows the user to quickly fit or wear the display system 10 .

In one example, rigidizer 32 may be made of a rigid material, such as Hytrel ^® (thermoplastic polyester elastomer). In the example of Figures 3a to 3c, the rigid nature (ie, non-extensibility) of the rigid members 32 of each temporal arm 26 limits the magnitude of elongation or deformation of the temporal arm 26 in use. Advantageously, this configuration enables more efficient (ie, direct) transfer of tension through the temporal arm 26 .

In some forms, the positioning and stabilizing structure may be designed, eg, "out of the box" and generally into its in-use configuration or shape. In addition, the positioning and stabilizing structure may be arranged out of the box, eg, a rigid member may be formed to maintain the shape of some or part of the positioning and stabilizing structure. Advantageously, the orientation of the positioning and stabilizing structure is clear to the user, as the shape of the positioning and stabilizing structure is generally curved, much like the back of the user's head. That is, the positioning and stabilizing structure is generally dome-shaped.

Another aspect of the positioning and stabilizing structures described herein is to direct the display unit 12 in direct contact with the user's face, ie, the force of the positioning and stabilizing structure, ie the force vector, may cause the display unit to be perpendicular or normal to the user pressure on the face.

In the example, the rigidizer 32 forms a lever arm (eg, the rigidizer arm 32 ), ie, a means to pivot about the rear support collar 16 . Advantageously, the rear support collar 16 may provide anchor points for the positioning and stabilizing structure 14, thus forming a pivot point. The rigid member may be hinged about the anchor point of the rear support cuff 16 to enable the forehead support connector 24 to raise or lower the position of the display unit 12 relative to the user's nose. Advantageously, this configuration can minimize the magnitude of the clamping pressure to stabilize the display unit 12 on the user's head.

In some forms of the present technology, the rigid member may be curved such that it assumes a crescent, semicircular, or partial crescent shape.

The rigidizer arms 32 may have a generally elongated and flat configuration (eg, see Figure 3a). In other words, the rigidizer arms are longer and wider (the direction from top to bottom in the plane of the paper) than the thick (the direction into the plane of the paper). In an example, the thickness and/or width of the rigidiser arm 32 may vary along at least a portion of its length, eg, the rigidiser arm 32 may include wider and thinner sections along its length to facilitate attachment and dispensing load.

While the rigidiser arms may be flat as shown in Figures 3a to 5c, it should be understood that the rigidiser arms may have a desired spatial configuration in the direction into the plane of the paper (see eg Figures 6 and 7a to 7c), in particular To allow for improved alignment with the shape of the user's face (eg, the shape of the side regions of the user's head (see, eg, Figures 7a to 7c ). As shown in Figures 6 and 7a to 7c, the rigidizer arms have A three-dimensional shape with curvature in all three axes (X, Y, and Z). Although the thickness of the rigidizer arm may be substantially uniform, its height or width may vary over its entire length. The shape of the rigidizer arm 32 and The purpose of the size is to fit snugly on the user's head so as to remain unobtrusive and maintain a low profile (ie, without looking overly bulky).

The rigidiser arm may have a longitudinal axis, which may be understood as an axis substantially parallel to the plane of the paper, along which the rigidiser arm extends (see Figure 5a and dashed line in Figure 7a as an example).

In some forms of the technology, the rigidizer (eg, rigidizer arm 32 ) is more rigid than the elastic (eg, elastomeric and/or fabric) member 34 , and less rigid than the display unit housing 22 . In particular, the rigidizer arm and/or the elastic member is such that, in combination, the rigidizer arm imparts shape and increased stiffness to the elastic member in at least one direction or in or around at least one axis.

The rigidizer 32 is capable of bending or deforming along its length, but resists or prevents the positioning and stabilizing structure from extending along the longitudinal axis of the rigidizer (see Figures 5a and dashed lines in Figure 7a). As shown in Figures 5a and 7a, the longitudinal axis of the rigidizer extends along the length of the rigidizer (eg, approximately through its center) and may be straight (Fig. 5a) or curved (Fig. 7a). The rigid member may be substantially inextensible and elastic. Rigid members according to the present technology preferably have one or more of the following features: retaining their shape, allowing the part to reorient forces, ie force vectors, around curves, such as around the cheeks, or around the ears, the ability to bend and/or at Structures that maintain a predetermined form are provided in some planes.

In one form, the rigidizer 32 may be flexible or capable of conforming to the user's head along the longitudinal axis of the rigidizer. However, in one form, the rigid member may be configured such that it cannot bend or deform across its width. This allows the positioning and stabilization of the structure to be comfortable while maintaining its structural function of anchoring the display in place (eg, the rigid member is flexible in one direction (to the user's head) but not in the other direction provide support or load bearing).

In some forms, rigidizer 32 may have an arcuate or curved shape. Bending may be provided in one or more selected areas of the rigid member to allow the rigid member to easily bend or articulate at that area. The bends may be areas of weakness to achieve flexibility in the rigid member so that the weakened portion acts as a living hinge. This flexibility is beneficial for fitting a wide range of user head sizes. The bends may be positioned to allow portions of the rigidizer to flex outward toward the user's ears and/or inward toward the center of the user's head.

In some forms, the rigidizer 32 includes a plurality of slots (eg, on each side of the arm, ie, on the anterior and posterior sides of the arm), and the plurality of slots along the component (such as the temporal Connector 18) forms a plurality of hinges. A hinge forms a flexible portion in each arm. For example, the hinge allows the arm to articulate and conform to minor changes in the cheek area and more evenly distribute the load on the face when the headgear is tensioned, when compared to a rigid member arm without any flexible portion. In some forms, where the rigidizer extends elongated in a generally longitudinal direction, the hinges and/or weakened regions may extend transverse to the longitudinal direction or may extend in the longitudinal direction to increase allowable compliance.

In some forms, the slots are generally parallel to one another, generally evenly spaced from one another, and include similar widths and depths in the thickness of the arms. It should be understood, however, that the slots may include other suitable arrangements and configurations to vary the position and flexibility characteristics of the arms, eg, the number of slots, slots on one or both sides (front and/or rear) of the arms , the spacing between the slots, the width, the depth, the orientation or angle of the slots on the arms (eg, the slots are angled relative to each other to provide bends of different orientations). In an example, one or more of the slots may be filled with a flexible material, eg, a narrow depression or groove formed by the slot may receive the flexible material. In an alternative example, the hinge may be provided by multiple flexible sections (eg, flexible sections formed of flexible or bendable material) spaced apart by rigid sections.

In some forms, the rigidizer 32 may include a material that guides or defines the direction or path of stretch of the elastic (eg, elastomeric and/or fabric) component (ie, the rear support cuff 16 ). In other words, the user stretches the positioning and stabilizing structure 14 in a direction substantially parallel to the longitudinal axis of the rigidizer 32 (see dashed lines in Figure 7a). Stretching of the positioning and stabilizing structure 14 in other directions results in rotation of the rigidizer relative to the display unit housing 22, which is undesirable. The rigidity of the rigid member biases the rigid member towards its natural unrotated, untwisted and undeformed state. To some extent, this makes the positioning and stabilizing structure 14 a self-adjusting head mounted display system. In an example, the rigidizer can be biased to a specific size (eg, a relatively small fit), and the rigidizer can be adjusted to the user's head, such as by opening or bending outward to scale the head size , thereby conforming to the shape of the user's head and providing support as required.

In some forms, elastic (eg, elastomeric and/or fabric) components may encapsulate the rigid members. For example, the fabric can be overmolded onto one side of the rigid member (eg, see Figure 3e). The rigid member may be encapsulated within a suitable elastic (eg, elastomer and/or fabric) material to improve user comfort and wear resistance (eg, see Figure 3d). A fabric may be disposed on the user contact side of the rigid member to provide a soft contact with the user's skin.

In some forms, the rigidizer can be formed separately from the elastic member, and then a protective sleeve (cover or enclosure) containing a user contact material (eg, Breath-O-Prene™) can be wrapped or slid over the rigidizer. In alternative embodiments, the rigidizer may be fabricated by adhesive, ultrasonic welding, sewing, hook and loop material, and/or stud connections. In one embodiment, the user-contacting material (ie, a soft or comfortable material (eg, Breath-O-Prene™) arranged to contact the user's skin in use) may be on both sides of the rigid member, or may be Optionally only on the user contact side of the rigid member to reduce material volume and cost.

The rigidizer may also be formed from a layer of additional material, such as silicone, polyurethane, or other adhesive material, applied to the elastic member, which may be applied to the elastic member to reinforce the elastic member. Silicone beads or polymer overmolding can also be used.

A rigid member may have a composite structure of two or more materials (rigid or semi-rigid). For example, a rigid member can be constructed by thickening or treating the fabric to make it stiffer or to prevent the material from stretching. In an example, the fabric can be printed such that the ink from the printing limits or reduces the ability of the fabric to stretch. Additionally, the fabric can be sewn in selected areas to stiffen it. Also, the fabric can be ultrasonically welded in selected areas to stiffen the fabric.

In some alternative forms, the rigidizer may be constructed from a nonwoven material, such as a mesh, such that it resists stretching in at least one direction. Alternatively, the rigidizer may be formed from a woven material, wherein the texture of the material is aligned such that the fabric does not stretch in the transverse direction in use to secure and anchor the positioning and stabilizing structure.

In an example, the rigidizer may be formed of Hytrel®, and the display unit housing 22 may be formed of polypropylene (PP). PP is a thermoplastic polymer with good fatigue resistance. Hytrel® is ideal for forming rigid members 32 because this material resists creep. Since these materials cannot be integrally bonded, the display unit housing 22 may be overmolded to the rigid member 32 to form a secure connection, ie, the joint between the front end 28 of the arm 26 and the rear edge region 20 of the display unit housing 22 .

In an alternative form, the rigidizers (eg, rigidizer arms) may be made of TPE that provides high elastic properties. For example, Dynaflex™ TPE compounds or Medalist ^® MD-1 15 can be used. The housing may be made of polypropylene (PP) material. The advantage of the rigid part moulded in TPE is that it enables the rigid part and the display unit housing to be permanently connected to each other. In other words, a fusion bond or chemical bond (molecular adhesion) is formed between the two components.

The joint connecting the rigid member to the display unit housing can provide a target point of flexibility, and the joint can be shaped and formed to allow bending in the desired direction and degree. Thus, once the head mounted display system is worn and the temporal arm 26 is stressed by tension from the rear support cuff 16 of the positioning and stabilizing structure 14, the rigidizers 32 can flex at the joints to allow them to maintain the face frame shape while at the same time Helps maintain the temporal arm 26 in a desired position relative to the user's face.

While the rigidizer and display unit housing have been described as being permanently connected to each other, it is contemplated that the rigidizer (ie, the temporal arm) may be detachable from the display unit housing, eg, by mechanical clip (snap fit) elements. This arrangement can provide a modular system with replaceable display units and/or positioning and stabilizing structures.

rear support hoop (or support hoop)

The rear support structure or hoop 16 may have the form of a hoop in an annular form (similar to the annular form of the rear support hoop 316 shown in Figure 7b), and be arranged to have a three-dimensional profile curve to fit or conform to the user's The shape of the back of the head, eg, the shape of the top of the user's head. In an example, the support cuff provides a cuff-type or annular arrangement (eg, a closed loop) that is adapted to enclose or encircle a portion of a user's head therebetween. It should be understood that the support cuff is not limited to annular or circular, for example, the support cuff may be oval or partially circular/oval or C-shaped. The rear support cuff 16 includes a parietal portion or parietal strap portion 38 adapted in use to be adjacent the parietal bone of the user's head, and an occipital portion or occipital strap portion 40 adapted in use to be adjacent to the occipital bone of the user's head. occipital bone. In an example, the occipital portion 40 is preferably arranged in use along a portion of the occipital bone, eg, along a portion of the occipital bone adjacent or proximate the junction where the neck muscles attach to the occipital bone, and the parietal portion 38 is preferably arranged in use behind the coronal plane. In an example, the occipital portion 40 is adapted to be positioned along a portion of the occipital bone above the junction where the neck muscles attach to the occipital bone. The junction may also be referred to as the external occipital protuberance (EOP). However, the exact location of the occipital portion 40 on the user's head may vary depending on the size and shape of the occipital portion 40 used on the user's head with which it is used, for example, the occipital portion 40 may be positioned adjacent to the neck muscles of the occipital bone. The attached part, above it or below it. In an example, the occipital portion 40 may be disposed below or below the occipital bone near the junction to which the neck muscles are attached. Such a hoop-like arrangement (eg, annular or circular or oval or partially circular/oval or C-shaped) of the rear support hoop 16 anchors the positioning and stabilizing structure 14 around the rear or rear bulge of the user's head , providing an effective support structure to keep the weight (ie, the display unit) at the front of the user's head. The rear support cuff 16 may be formed of an elastic material that can be used to stretch the cuff and hold the rear support cuff 16 securely in place.

In an example, the three-dimensional shape of the rear support cuff may have a generally circular three-dimensional shape adapted to cover the parietal and occipital bones of the user's head in use.

In the example, the occipital portion 40 engages the occipital bone to hold the occipital portion 40 and the rear support cuff 16 in place and prevent the positioning and stabilizing structure from riding up the back of the user's head. Additionally, the parietal portion 38 may capture or pass over the upper portion of the user's parietal bone, thereby preventing the positioning and stabilizing structure from sliding back down the user's head.

The rear support cuff 16 further includes opposing attachment straps or tabs 42 (see, eg, Figure 3a).

In the example, the rear support cuff 16 is oriented in a substantially vertical direction, ie arranged in a vertical plane substantially parallel to the coronal plane. This arrangement of the rear support cuff 16 properly orients the rear support cuff 16 on top of the user's head to support lateral (ie, level) tension applied by the connecting straps 42 and to support the weight of the display unit 12 .

The rear support cuff 16 and the connecting straps 42 may be formed of elastic and/or fabric materials to help conform to the shape of the user's head, eg, the rear support cuff 16 and the connecting straps 42 provide the ability to stretch. Furthermore, such elastic and/or fabric material behind the user's head may allow for easier lifting of the display unit 12 off the user's face, eg, when the positioning and stabilizing structure 14 is held on the user's head , move the display unit 12 away from the user's eyes to talk to someone. For example, the rear support cuff 16 may be a neoprene material, or other fabric-foam composite material (eg, a breathable material, eg, a multi-layer construction including an outer fabric layer and an inner foam layer), or a spacer fabric. Advantageously, the fabric can provide a soft support structure to stabilize the display unit 12 on the user's head, and allow the positioning and stabilizing structure 14 to cushion against the user's head to optimize comfort.

The rear support cuff including the portion of the temporal arm 26 may be stretchable. This enables the positioning and stabilizing structure 14 to be stretched, which results in a comfortable (or relatively flat) force-displacement (or extension) profile. In an example, when the positioning and stabilizing structure 14 is stretched apart under a load L, the strain forces may be distributed substantially uniformly across the positioning and stabilizing structure 14 . Accordingly, the positioning and stabilizing structure 14 has a relatively flat force (y-axis) distribution with respect to displacement (x-axis), thereby illustrating the force variation when the positioning and stabilizing structure 14 is extended, especially when compared to prior art structures Not much.

Adjustable (connecting) straps

Straps will be understood as structures designed to resist tension. In use, the attachment strap 42 is part of the positioning and stabilizing structure 14 under tension. In some forms of the present technology, the connection straps 42 may be flexible and, for example, non-rigid. An advantage of this is that the attachment straps are more comfortable for the user to tighten their head.

As will be described, some straps will apply elastic force due to tension. The straps positioning the stabilizing structure 14 provide a holding force to overcome the effects of gravity on the display unit 12 . In this way, the strap may form part of the positioning and stabilizing structure to maintain the light-tight position of the display unit on the user's head.

In some forms, the positioning and stabilizing structure 14 provides a holding force as a safety margin to overcome potential effects of disruptive forces on the display unit in use, such as from head and body motion, or accidental interference with the display unit. The strap may be configured to direct a force to draw the interface surface of the display unit 12 into sealing contact with a portion of the user's face in use. In an example, the strap may be configured as a tether.

In the form of FIGS. 3 a to 3 c , the attachment strap 42 is adjustable and operates to vary the distance between the rear support band 16 and the display unit housing 22 of the display unit 12 . Each strap 42 passes through an eyelet 44 in the sheet 36 of the corresponding temporal arm 26 in use. The length of each strap 42 through the sheet 36 of the corresponding temporal connector 18 can be adjusted by pulling more or less (adjusted length, ie, adjusted) straps 42 through the corresponding eyelet 44 . The strap 42 may be fastened to itself after passing through the eyelet 44 in the sheet 36, such as by hook and loop fasteners, which allow for fine or subtle adjustment of the strap for comfort and fit (eg, elasticity). Therefore, the distance between the rear support band 16 and the display unit housing 22 can be adjusted to accommodate different head sizes. Such an adjustable strap arrangement also allows adjustment when the display unit 12 is on the user's head, eg, the user can pull on the strap 42 to tighten back.

In an example, the thickness and/or width of the rear support cuff 16 and/or strap 42 may vary along at least a portion of its length. For example, the rear support cuff 16 may include wider and thinner sections along its length, eg, adjacent the wider portion of the strap 42, to facilitate connection to the temporal arm 26 and load distribution. The straps 42 may also be thinner along their free ends to facilitate passage through the eyelets 44 in the respective temporal arms 26 .

In some arrangements, the straps or rigidizers provide a strut arrangement. For example, the rigidizer may include a portion with a plurality of holes, and one end of the strap 42 may provide a stud adapted to be press fit into a selected one of the holes (eg, overmolded or ultrasonically welded to the strap). The studs and holes are configured to provide a snap fit arrangement. In other forms, the strap may be secured to itself by an arrangement of holes and studs.

In some arrangements, an adjustment mechanism is provided for adjusting the distance between the rear support band 16 and the display unit housing 22 . The rigidizer may include apertures to allow the strap 42 to form a loop, thereby forming an annular portion of the strap 42 . The rigidizer may be provided with a push tab that is preloaded or biased by a spring to allow engagement and disengagement of the looped portion of the strap 42 . A grip portion may be provided on the side of the aperture opposite the push tab to allow the user to stabilize the positioning and stabilizing structure on his face. The gripping portion may prevent disassembly of the annular portion by preventing the annular portion from being pulled back through the aperture.

In some forms of the present technology, more than one positioning and stabilizing structure 14 is provided with a display unit, each positioning and stabilizing structure configured to provide a holding force corresponding to a different range of sizes and/or shapes. For example, one form of positioning and stabilizing structure 14 may be suitable for large size heads but not for small size heads, while another form of positioning and stabilizing structure may be suitable for small size heads but not for small size heads Large size head. In this way, the display unit can be provided with a different set of positioning and stabilizing structures, which are suitable for different size and/or shape ranges. Advantageously, the display unit is universal and allows for better fit and comfort.

Modifications to the rear support hoop

Extended Rigid

Figures 5a to 5c illustrate a support for a head mounted display system or element 210 according to a third example of the present technology. In Figures 5a to 5c, the same reference numerals denote similar or identical parts as in Figures 3a to 3c, but with the addition of 200 to allow for, for example, the display device 212, the positioning and stabilizing structure 214, the rear support collar 216, A distinction is made between examples of temporal connector 218, posterior edge region 220, display unit housing 222, parietal portion 238, occipital portion 240, connecting strap 242, and the like. In the third example, the support for the head mounted display assembly 210 does not include forehead support, ie, the display unit 212 is supported by the positioning and stabilizing structure 214 without any forehead support connectors or forehead support straps.

FIG. 6 shows a support for a head mounted display system or element 310 according to a fourth example of the present technology. In the fourth example shown in Figure 6, the same reference numerals denote similar or identical parts as in Figures 3a to 3c, but with the addition of 300 to allow, for example, the display device 312, the positioning and stabilizing structure 314, the rear support The hoop 316, temporal connector 318, display unit housing 322, forehead support connector 324, temporal arm 326, rigidizer 332, parietal portion 338, occipital portion 340, forehead support strap 348, etc. are distinguished between examples. In a fourth example, the support for the head mounted display system 310 includes opposing temporal connectors 318 each having a temporal arm 326 having an extending rigid member 358 . Each extended rigid member 358 may extend from the corresponding temporal arm 326 to the rear support cuff 316 to enhance support for the display unit 312 in use. Each extended rigidizer 358 may extend along a portion of the posterior support cuff 316 and may extend into one or both of the parietal portion 338 and the occipital portion 340 . For example, each extended rigidizer 358 may include a Y-shape as shown in FIG. 6 that extends into the parietal portion 338 and the occipital portion 340 . Alternatively, each extending rigidizer 358 may extend into only one of the parietal portion 338 and the occipital portion 340, eg, only along the occipital portion 340, as shown in Figure 7a discussed below. In the example of FIG. 6 , the parietal and occipital portions of the extending arms of the rigidizer 358 are provided along the parietal portion 338 and the occipital portion 340 of the rear support cuff 316 , which are positioned proximate the The parietal and occipital bones of the user's head to support the corresponding portions of the rear support cuff 316 .

The extended rigidizer 358 increases the length of the temporal connector 318 , thereby increasing the lever arm moment created around the rear support cuff 316 . In use, the larger lever arm extends the moment of inertia further behind the user's head when compared to the first and second examples. Advantageously, this may provide better comfort for the user by reducing the tension applied to the forehead support connector 324 to support the display unit 312 .

Additionally, the extension arms of rigid member 358 may provide a more even distribution of pressure on the user's head due to the weight of display unit 312 and any clamping forces exerted by tension forces induced in positioning and stabilizing structure 314.

When the forehead support connector 324 is tightened, the extending arms of the rigidizer 358 may illustrate the rear support cuff 316 that prevents the positioning and stabilizing structure 314 from moving vertically upward, ie, traveling upward, on the user's head. The extending arms of the rigidizer 358 may more effectively secure the occipital portion 340 of the rear support cuff 316 below the corresponding occipital bone of the user's head (eg, the occipital portion along the junction adjacent to which the neck muscles attach to the occipital bone).

In other words, the occipital portion 340 of the extended rigidizer 358 engages the occipital bone to hold the occipital portion 40 and the rear support cuff 16 in place during use. Additionally, in use, the parietal portion 338 of the extended rigidizer 358 may capture or pass over the upper portion of the user's parietal bone to prevent the positioning and stabilizing structure from sliding back down the user's head during use.

In an embodiment, each of the parietal portion 338 and the occipital portion 340 may have different elastic properties to provide increased stability for positioning and stabilizing structures on the user's face in use.

In an example, the parietal portion 338 may be constructed of an extensible material to allow adjustment of the positioning and stabilizing structure in use. For example, the parietal portion 338 may be made of an elastic material. The extensibility provided by the elastic parietal portion may allow a more suitable range for the user. Additionally, the occipital portion 340 may be made of a material having a lower extensibility than the parietal portion 338 . That is, the occipital portion 340 may be constructed of a material that has less stretch for a given force than the material used for the parietal portion 338 . This is to hold the positioning and stabilizing structure in place while allowing some adjustment to the position of the display unit on the user's face.

Rigid piece with offset extension

Figures 7a to 7c represent a modification of the fourth example of Figure 6 . In this example, each temporal arm 326 includes a rigid member 360 that extends offset. Each offset extending rigid member 360 may extend from the respective temporal arm 326 to the occipital portion 340 of the rear support cuff 316, ie, take a substantially J-shaped form, to enhance support for the display unit 312 in use.

The offset extending rigidizer 360 extends along a portion of the occipital bone, such as along a portion of the occipital bone adjacent to the junction where the neck muscles attach to the occipital bone, to securely anchor the positioning and stabilizing structure 314 to the display unit 312 is supported over the user's nose and cheeks.

As best shown in Figures 7a and 7c, medial and temporal adjustment mechanisms 362, 364 may be provided to the temporal arm 326 and the offset extending rigidizer 360. The intermediate adjustment mechanism 362 may be adapted to connect the first offset extending rigid member 360 to the second offset extending rigid member 360 such that the intermediate adjustment mechanism 362 is located between the first and second intermediate adjustment mechanisms 362 . The intermediate adjustment mechanism 362 may have an adjustable length to control the distance between opposing arms of the rigidizer 360 . An intermediate adjustment mechanism 362 may be mounted between opposing arms of the offset extending rigidizer 360 about the intermediate region of the occipital portion. In one example, the intermediate adjustment mechanism 362 may be in the form of a strap passing through opposing holes 363 in the respective rear ends 368 of the opposing arms of the offset extending rigidizer 360 (see Figure 7b). The distance between opposing arms of rigidizer 360 can be controlled by pulling more or less straps 362 through apertures 363 .

A temporal adjustment mechanism 364 may be provided on each temporal arm 326 along the temporal region of the user's head. The temporal adjustment mechanism 364 may be adjustable and operate to vary the distance between the offset extended rigid member 360 and the display unit housing 322 .

The offset extension rigidizer 360 may be formed from a flat member and then bent or deformed into a shape suitable for use. For example, rigidizer 360 may be die cut from sheet material.

Adjustable support hoop and offset configuration

9a-10c illustrate a positioning and stabilization structure 514 for a head mounted display system 510 according to another example of the present technology. Head mounted display system 510 includes display unit 512, and positioning and stabilizing structure 514 is configured to hold display unit 512 in place on the user's face.

The positioning and stabilizing structure 514 includes: a support cuff 516, which can be positioned between the frontal and temporal bones of the user's head; and opposing connectors 518, which are disposed on the respective sides of the user's head, which will support the cuff 516 Interconnected to respective rear edge regions 520 of the display unit housing 522 . In the example shown, when in use, the connector 518 is connected to a portion of the support cuff 516 at a location closer to the mid-coronal plane than the anterior coronal plane of the head.

Each connector 518 includes an arm 526 having a front end 528 that mounts to the rear edge region 520 of the display unit housing 522 and a rear end 530 that forms part of a link 564 to connect the arm 526 to the support band 516 .

The support cuff 516 may have a three-dimensional contoured curve to fit or conform to the shape of the user's head. The support cuff 516 includes an anterior portion 538 (also known as an anterior support or anterior support) and an occipital portion 540 (also known as a dorsal or posterior support), the anterior portion 538 being disposed generally on the frontal or parietal bone, Or between the frontal and parietal bones (eg, contacting the anterior region of the user's head), the occipital portion 540 is arranged to lie approximately on the occipital or parietal bones, or between the occipital and parietal bones (eg, contacting the back of the user's head) area). The occipital portion 540 is preferably arranged along a portion of the occipital bone (eg, along a portion of the occipital bone adjacent to the junction where the neck muscles attach to the occipital bone), and the frontal portion 538 is preferably arranged in front of the coronal plane extending through Attachment point on the ear. In the example shown, the anterior portion 538 and the occipital portion 540 extend transverse to the sagittal plane. For example, as shown in Figures 10a-10c, the anterior or anterior support portion 538 of the support cuff 516 is adapted to extend or lie in the plane 539, and the occipital or posterior support portion 540 of the support cuff 516 is adapted to extend in the plane 549 Extends in or lies in plane 549, and each of plane 539 and plane 549 is adapted to extend transverse to the sagittal plane. In an example, plane 549 may be referred to as the first plane and plane 539 may be referred to as the second plane, just to distinguish planes 549 , 539 . That is, although the terms "first" and "second" may be used, they are not intended to denote any order unless otherwise indicated, but are simply used to distinguish different elements, such as planes.

Anterior portion 538 and occipital portion 540 may be rigid components and include adjustment mechanism 562 . In particular, the rigid members of the anterior and occipital portions may be any form of rigid member or rigid member arm previously described. In an example, anterior portion 538 and/or occipital portion 540 may include a plurality of slots (eg, on one or both sides of anterior portion 538 and/or occipital portion 540 ) that form a plurality of slots along the component Hinge, see eg slot 543 in the occipital portion of Figures 9a and 9b. The hinge forms a flexible portion in the anterior portion 538 and/or the occipital portion 540 . The hinge allows the anterior portion 538 and/or the occipital portion 540 to articulate and accommodate minor changes in the user's head and distribute the load on the head more evenly.

In some forms, the adjustment mechanism 562 may be disposed on one or both rigidizer arms, and/or at the connection point between the anterior portion 538 and the occipital portion 540 . The adjustment mechanism 562 may be adjustable and operate to move the anterior portion 538 and the occipital portion 540 relative to each other. In some forms, the adjustment mechanism 562 may be adjustable and operate to vary the distance between the anterior portion 538 and the occipital portion 540 (eg, the distance or displacement between the planes 539 , 549 of the anterior portion 538 and the occipital portion 540 ) 545 (eg offset, as shown in Figure 10b). In some forms, the adjustment mechanism 562 may be adjustable and operable to change the angle between the anterior portion 538 and the occipital portion 540 .

In some forms, the anterior portion 538 and the occipital portion 540 can be articulated about the adjustment mechanism 562 of the support cuff 516 such that the anterior portion 538 can be rotated forward or backward, for example, relative to the coronal plane, and the occipital portion 540 can be raised relative to the Frankfurt level. or lower.

In some forms, the anterior portion 538 and the occipital portion 540 can be hinged to adjust the distance between the anterior portion 538 and the occipital portion 540 . In some forms, the adjustment mechanism 562 can include a sliding element wherein at least one anterior or occipital portion can slide between an in-line position and at least one offset position. Planted in an in-line position, the anterior part is coplanar with the occipital part. In at least one offset position, the anterior portion is in the offset plane (ie, non-coplanar) of the occipital portion. The offset plane may or may not be parallel to the plane of the occiput.

The adjustment mechanism 562 may further include a guide 566 for guiding one of the anterior or occipital portions as they move relative to each other between the in-line and offset positions. The guides 566 may take the form of elongated slots disposed in either of the anterior or occipital portions, and corresponding guide pins disposed in the other of the anterior or occipital portions. Guides 566 enable corresponding guide pins to move within the elongated slots for sliding adjustment.

In some forms, the guide 566 provides camming and sliding motion to the anterior and occipital portions. The guides may take the form of in-line, arcuate slots, or other variations to introduce additional motion behavior between the anterior and occipital portions. In addition, the guides 566 may be arranged at specific angles relative to the Frankfurt horizontal in order to adjust the motion behavior of the anterior and occipital portions 538, 540.

The adjustment mechanism 562 enables the anterior and occipital portions 538, 540 of the cuff 516 to be configured in any one or combination of parallel and coplanar arrangements with each other, parallel and offset from each other, angled with each other and with the temporal arm. The advantages of some of the above combinations are described below.

Referring to Figure 10a, an in-line configuration is shown in which the anterior portion 538 is arranged in the same plane as the occipital portion 540, as shown in phantom, ie the plane 539 formed by the anterior portion 538 of the cuff 516 and the occipital portion 540 of the cuff 516 The resulting planes 549 are coplanar. The anterior and occipital portions can be moved relative to each other, eg, from an in-line configuration to one or more offset positions, eg, where the planes 539, 549 are not coplanar. Referring to Figures 10b and 10c, an offset configuration is shown in which the anterior portion 538 has been offset into a plane different but parallel to the plane of the occipital portion 540. As shown in Figures 10b and 10c, anterior portion 538 may be more or less offset from occipital portion 540 (eg, the offset configuration forms a gap between plane 549 (eg, first plane) and plane 539 (eg, second plane) Spacing, distance or displacement 545, and the adjustment mechanism allows for selective adjustment of the spacing or displacement. That is, in Figures 10b and 10c, the plane 539 formed by the anterior portion 538 of the cuff 516 and the plane formed by the occipital portion 540 of the cuff 516 549 is offset or non-coplanar. In an example, as shown in Figure 10b, the offset planes 539, 540 may be substantially parallel to each other, but spaced apart by displacement 545 such that plane 539 is not in line with plane 549 (ie, substantially parallel but not coplanar). In an alternative example, as shown in Figure 10c, the offset planes may not be parallel, ie, plane 539 is arranged at an angle to plane 549.

In some forms, the anterior and occipital portions are constrained to a parallel configuration with each other, ie, the portions cannot be rotated out of the parallel configuration. Examples of such configurations are shown in Figures 10b and 10c. Figures 11a and 11b show the corresponding schematic diagrams of Figures 10b and 10c, respectively.

Referring to the schematic representation of Figure 11a, an in-line configuration is shown, ie there is no offset between the anterior and occipital portions 538,540. In this configuration, the counterclockwise moment Mw is produced by the weight Fw of the display unit 512 and its horizontal displacement D2 from the pivot point 541 of the display system at the contact area of the front 538 of the support band 516 (ie, Mw=Fw ×D2). Since both the anterior and occipital portions 538, 540 are aligned, no internal moments are created within the anterior and occipital portions to assist or prevent the resistance provided by the positioning and stabilizing structure 514, ie, there is no clockwise generated by the anterior and occipital portions moment. By comparison, and with reference to Figure 11b, when an offset (ie, displacement D1 ) is introduced between the anterior and occipital portions, a corresponding clockwise moment Mt (ie, Mt=Ft×D1 ) is generated in the hoop 516 , which Helps to resist the moment Mw induced by the display unit 512 on the system.

In the parallel and offset configuration of Fig. 11b, the space introduced between the anterior and occipital portions creates a clockwise moment Mt that counteracts the counterclockwise moment Mw created by the display unit 512 on the user's face. Advantageously, such a structure can balance the torque applied to the system 510, thereby improving the comfort of use when wearing the positioning and stabilizing structure.

Furthermore, as shown in FIGS. 11 a to 11 c , the position of the pivot point 541 indicates the length D2 of the moment arm of the moment Mw caused by the display unit 512 . However, as this pivot point 541 moves forward on the forehead (under different adjustments of the support collar 516), the surface on which the front portion 538 will be positioned becomes more vertical. While this may reduce the induced moment, it may be necessary to increase the clamping pressure on the support collar to resist the support collar 516 sliding down the face. Thus, achieving a balance between these competing criteria allows for a more optimal solution, which contributes to the comfort and fit of the user. In one example, the anterior portion 538 (eg, providing the pivot point 541 ) is configured and arranged along the upper portion of the frontal bone or along a portion of the parietal bone (eg, in the case of a less vertical head shape in the case of a user above the forehead) engages the user's head, which allows for a reduction in force to prevent the positioning and stabilizing structure from sliding off the front of the user's head under the weight of the display unit 512 when in use. The reduction in force provides improved comfort while stably supporting the display system. In an example (see eg Figure 13a), a forehead support 25 (eg a forehead pad) may optionally be provided to the display unit to provide a light load contact point on the user's forehead, eg with to increase stability. In this example, the forehead support would apply less force than the front 538, eg, to avoid discomfort at the forehead (eg, red marks on the skin).

In some other forms, in addition to being offset from the anterior portion 538, the occipital portion 540 may be independently angled relative to the anterior portion 538, as shown in FIG. 11c. Adjusting the angle of the occipital portion 540 to become more vertically oriented enables the occipital portion 540 to more effectively apply downward loads to the positioning and stabilizing structure. Advantageously, this can balance the load of the display unit 512 more efficiently, resulting in a more stable positioning and stable structure. Additionally, adjusting the angle of the occipital portion 540 may more effectively anchor the occipital portion to the user, ie, the unique shape of the user's head. In this example, adjusting the angle of the occipital portion 540 increases the offset (ie, displacement D1+) between the anterior portion and the occipital portion, which increases the clockwise moment Mt in the hoop 516 (ie, Mt=Ft×D1+) , to more effectively illustrate the resistance to the moment Mw induced by the display unit 512 on the system.

In some other forms, the anterior portion 538 may be independently angled (or moved) relative to the occipital portion 540 . Angled the front may allow the center of mass of the head mounted display system to be optimally positioned on the user's head. Advantageously, controlling the position of the center of mass can help balance the moment loads on the head mounted display system and thus improve the stability of the positioning and stabilizing structure. In use, this prevents the head mounted display system from sliding down the user's face.

As shown in the embodiment of Figures 9a to 10c, the occipital portion 540 may further include an intermediate adjustment mechanism. In some forms, the adjustment mechanism is in the form of a connection strap 542 . For example, as shown in Fig. 10a, straps 542 may be installed around the posterior, mid-region of occipital portion 540 through opposing holes 563 in corresponding posterior ends 568 of opposing arms of occipital portion 540 (similar to the straps in Fig. 7b). 362).

Strap 542 may be formed of an elastic material to help conform to the shape of the user's head. In some forms, the distance between the rear ends 568 can be changed by manual control, ie, by pulling more or less straps through the holes 563 . Both elastic and manually controlled methods are used to maintain positive pressure on the occipital portion 540, thereby maintaining positioning and stabilizing the structure in use. Advantageously, straps 542 maintain tension in the positioning and stabilizing structure during dynamic loading situations (eg, a user moving their head and body while operating head mounted display unit 512).

In some forms, the intermediate adjustment mechanism does not support the moment load of the display unit 512 . In this form, the anterior and occipital portions are configured to balance the head mounted display on the user's head, so straps 542 are not required to support the moment loads applied by the display unit 512 . In this way, the intermediate adjustment mechanism is decoupled from the bearing loads in the positioning and stabilizing structure.

As shown in Figures 12a and 12b, the positive pressure, ie, preload, exerted by the strap 542 on the positioning and stabilizing structure holds the occipital portion 540 of the support cuff 516 near the occiput of the user's head. The load applied by the occipital portion 540 may be small enough in magnitude to counteract the dynamic loads applied to the head mounted display in use, and not apply excessive pressure to the occipital portion of the user. The tension applied to strap 542 can help prevent the head mounted display from sliding along the user's face in use.

For example, Figure 12a shows a first example of a preload applied by strap 542. In this configuration, the counterclockwise moment Mw is generated by the weight vector Fw of the display unit 512 and its horizontal displacement D2 from the pivot point 541 of the display system (ie, Mw=Fw×D2), and the clockwise moment Mt is via the tension vector The offset (ie, displacement D1 ) between Ft and the anterior and occipital portions 538 , 540 is created in the cuff 516 (ie, Mt=Ft×D1 ) to resist the moment Mw. Furthermore, by bending the occipital portion 540 inwardly (by the preload applied by the strap 542 ), an additional force vector Fb is created, which creates an additional moment Mb (ie, Mb=Fb×D3). Thus, the moments Mt and Mb together more effectively account for the resistance to the moment Mw induced on the system by the display unit 512 .

Figure 12b shows a second example of the preload applied by strap 542. In this configuration, the counterclockwise moment Mw is generated by the weight vector Fw of the display unit 512 and its horizontal displacement D2 from the pivot point 541 of the display system (ie, Mw=Fw×D2), and the clockwise moment Mt is via the tension vector The offset (ie, displacement D1 ) between Ft and the anterior and occipital portions 538 , 540 is created in the cuff 516 (ie, Mt=Ft×D1 ) to resist the moment Mw. Furthermore, by bending the occipital portion 540 outward (by the preload applied by the strap 542 ), an additional force vector Fb2 is created, which creates an additional moment Mb2 (ie, Mb2 =Fb2×D3). In this example, the moment Mt opposes the moments Mw and Mb2 induced on the system.

In some forms, the intermediate adjustment mechanism may include a rigidly constrained elastic portion. For example, rigidly constrained elastics are mounted around the posterior, medial region of occipital portion 540 and pass through opposing holes 563 in each rear end 568 . The length of the rigidly constrained elastic portion can be manually controlled, ie, adjustable, to increase or decrease the distance between the rear ends 568, and thus adjust the size of the positioning and stabilizing structure to accommodate differently shaped and/or shaped heads.

The rigidly constrained elastic portion includes an elastic member and a non-elastic member. The two parts are connected together, whereby the elongation of the elastic part is limited by the length of the non-elastic part. In some forms, the elastic member is shorter in length than the inelastic member so as to allow the elastic member to stretch until the stretched length equals the length of the inelastic member. For example, when the rigidly constrained elastic portion is mounted to the positioning and stabilizing structure in use, the user can apply a dynamic load to the head mounted display, eg, the user jumps and moves around, and the elastic member applies a dynamic load to the user's head Sufficient tension to prevent positioning and stabilizing structures from slipping. If the user applies an excessive dynamic load to the head-mounted display, the non-resilient member prevents the occipital portion 540 from moving away from the user's head, ie, loosens the fit, and ensures that the head-mounted display does not slip off the user's head .

Referring to Figure 12c, the positioning and stabilizing structure 514 may exhibit height adjustment in a manner that provides intuitive fit and adjustment. In addition, the structure provides responsive stability that can accommodate the dynamic movements of the user. Another feature of this design is that the reaction forces induced by the display unit 512 are accommodated by the anterior and occipital portions 538, 540, while still allowing fine independent adjustment of the display unit. In particular, adjustment of display unit 512 in the front and rear directions controls the contact pressure of the interface structure on the face (eg, adjustment until the forehead pad provided to the interface structure lightly touches the face), adjustment in front 538 helps to accommodate Different head sizes and positions of the display unit 512 in the up-down position (eg, earphone-type adjustment relative to the ear (eg, self-leveling contact)), while the adjustment of the occipital portion 540 helps match the position of the contact point and The amount of counter-torque generated contributes to comfort and load distribution in the positioning and stabilizing structure 514 (eg, the occipital portion 540 provides a combination of the following properties: stiffness for controlling the direction of pull, compliance for comfort and gripping , elastic for automatic retention of the system fit, and with optional adjustable coupling).

Referring to FIG. 13b , the forehead support connector 524 may also include a forehead support rigidizer 556 . In some forms, the forehead support rigidizer may be pre-tensioned to apply a moment load to the positioning and stabilizing structure 514 that causes the display unit housing 522 to rotate inwardly, ie, rotate rearwardly toward the user's face in use (eg, arrows). Advantageously, the display unit housing 522 is directed to (or toward) the user's face without requiring the positioning and stabilizing structure 514 to be tensioned by the straps 542 to pull the display unit to (or toward) the user's face. The moment load created by the pre-tensioned forehead support stiffener 556 acts similarly to the spring load on the display unit 512 . Schematic lines 566 and 568 of FIG. 13b illustrate the corresponding loaded and unloaded conditions applied to rigid member 556 . In the loaded condition (line 566), the positioning and stabilizing structure is used on the user's head, wherein the display unit 512 is pushed towards the user's face, and the rigid member 556 behaves like a leaf spring, away from the user's face . In the unloaded or unloaded state (line 568), the rigidizer 556 is preloaded to deflect the display unit housing 522 inwardly in preparation for receiving the user's face.

central support structure

14a-14b, another embodiment of a positioning and stabilizing structure 614 for a head mounted display system 610 is disclosed. The head mounted display system 610 differs from the embodiment shown in Figures 9a to 13b in that the head mounted display system 610 further comprises a central support structure 662, such as a hub member, arranged to be positioned around the user's ear . In the example shown, the central support structure 662 may include a central portion or hub connected to the positioning and stabilization structure 614 of the anterior portion 638 and/or the occipital portion 640 .

In an example, the hub member 662 is rotatably connected to the anterior portion 638 (also referred to as the anterior portion) and/or the occipital portion 640 (also referred to as the posterior portion). The anterior and occipital portions can be hinged about the hub 662 to enable the anterior portion 638 to rotate forward or rearward, eg, relative to the coronal plane, while the occipital portion 640 can be raised or lowered relative to the Frankfurt level.

Referring to Figure 14b, examples of two possible configurations of the front portion 638 relative to the hub 662 are shown. In the first example (shown in solid lines), the anterior portion 638 is disposed near the parietal bone. In the second example (shown in phantom), the anterior portion 638 is disposed near the frontal bone.

In some forms, the anterior portion 638 may be independently angled (or moved) relative to the occipital portion 640 . The front can be adjusted to move towards the center of gravity of the display system. In some forms, the occipital portion can be moved up or down to position and stabilize the structure against the occipital support of the user's head. In some other forms, the occipital portion 640 may include a type of weight (w) that balances the display unit 612 (eg, see Figures 14a and 14b).

Referring to Figure 14c, in use, the hub 662 can guide the force (ie the force vector) around the user's ear exerted by the anterior portion 638 and the occipital portion 640. For example, in some forms, the occipital portion 640 can be hinged about the hub 662 to a position that is offset and parallel to the anterior portion 638 . In this configuration, the force, ie, a vector, applied to the occipital portion 640 can translate around the perimeter of the hub 662 and through the anterior portion 638 .

Referring now to Figure 14d, in some forms, the hub member 662 is also rotatably connected to the display unit 612. The display unit can be hinged about the hub 662 to enable the display unit to rotate, ie move relative to the Frankfurt level. For example, the display unit is raised or lowered relative to the user's eyes. That is, the positioning and stabilizing structure may allow upward (eg, upward) pivotal movement of the display unit to allow movement of the display unit to a non-operating position without removing the positioning and stabilizing structure (eg, flip-up). In some forms, the pivoting movement (or pivoting movement) of the display unit involves a pivoting arrangement (or pivoting movement) including positioning and stabilizing structures. In some forms, the pivotal arrangement may provide a release mechanism at the forehead support connector (eg, the release mechanism releasably locks the display unit in operative (ie lowered) and non-operative (ie raised) positions) And/or provide a limited hinge area at the temporary connector (eg, the limited hinge area may limit the hinge movement of the temporary connector, eg, at the connection to the display unit).

In some forms, the hub member 662 can accommodate some of the weight of the display unit 612, thereby creating a pivot axis for the head mounted display system 610 around the user's ears and in the region of the mid-coronal plane. This can reduce the load on the front and facilitate angular adjustment of the display unit 612 about the hub 662 .

Examples of two possible configurations of the display unit 612 are shown in Figure 14d. In the first example, the display unit 612 is arranged in front of the user's eyes, ie, generally parallel to the Frankfurt level. In a second example, the display unit is shown in a raised position above the user's eyes, ie angled with respect to the Frankfurt horizontal. Advantageously, moving the display unit 612 between these two positions enables the user to remove the display unit 612 from their eyes during use (eg, playing a game) or before putting on and taking off the head mounted display system 610 move away.

In some forms, the audio device (A), ie earphones (eg, noise cancellation), may be located on the hub 662 (see Figure 14b). Audio device A may be configured to releasably engage hub 662, eg, around a snap-in feature. In some forms, in use audio device A may be placed on hub 662 to encapsulate the user's ear.

Materials and Composites

In one form of the present technology, the positioning and stabilizing structure 14 includes a strap constructed from a laminate of an elastic (eg, elastomeric and/or fabric) skin-contacting layer, an inner foam layer, and an outer fabric layer. In other words, the positioning stabilization structure 14 includes at least one strap 14 . In one form, the foam is porous to allow moisture (eg, sweat) to pass through the straps. In one form, the outer fabric layer includes loop material to engage with the hook material portion, ie, the tab portion 54 . In some forms of this technology, the skin contact layer is made of a material that helps draw moisture away from the user's face. This helps maintain comfort if the user sweats while wearing the user interface.

In one form of the present technology, positioning and stabilization structures 14 are provided that are configured to have a low profile or cross-sectional thickness to reduce the perceived or actual bulk of the device (or display system). In an example, the positioning and stabilizing structure 14 includes at least one strap 14 having a generally rectangular cross-section. In another example, the positioning and stabilizing structure includes at least one strap having a profile with one or more rounded edges to provide greater comfort and reduce the risk of the strap marking or irritating the user.

In some forms, the straps of the positioning and stabilizing structure 14 may be made at least partially from or include at least one synthetic polymer, such as nylon and/or polyurethane (eg, Lycra). Furthermore, the straps may comprise different layers of different materials, for example. Different layers can be welded to each other. In an example, the straps may include different layers of different materials, eg, an outer layer made of an aesthetically pleasing material and/or a soft and/or pleasing material that faces the user's head inner layer. For example, the straps forming the parietal portion of the cuff can be made of inexpensive and/or comfortable materials. In another example, referring to Figures 28 and 29, a strap (eg, strap 14) may include an inner layer 17 of low density polyurethane foam having a thickness of 2.5-4.0 millimeters (mm), and be configured to surround the inner layer 17. Outer layer 15 of layer 17 . The outer layer 15 may be formed from a laminate of nylon, polyester, another similar material that can be manufactured to provide a soft outer surface, or a mixture thereof. Laminate layers may include one or more layers. In some forms, the outer layer 15 may be formed from a blend of nylon and polyester. Therefore, the choice of strap material can improve the comfort of the strap.

In some forms, the outer layer 15 of the straps of the positioning and stabilizing structure 14 may include an elastic member of elastic nylon braid formed to be free (or longitudinally) on the inner layer 17 serving as a rigidizer ) slide (eg, Figure 28). The rigidizer (ie, inner layer 17 ) may serve as a frame (or support) for strap 14 and may be formed from a material such as TPE, which is advantageously both lightweight and provides controlled flexibility.

In an example, the strap may be a single layer component such as an elastomer/fabric. Alternatively, the straps may be composite or multi-layer components, such as fabric and foam composites, or outer fabric layers and inner spacer panels. The straps may be made of spandex or spandex/foam composites, or may be formed of other suitable materials such as 3D spacer fabric or double-knit interlocking fabric.

Different materials for the strap portions and/or the different layers of the different straps can be selected depending on the specific properties/functions/requirements. In an example, the straps of the positioning and stabilizing structure may be BPA free, and ^Gelamid® may be used for at least a portion of the straps.

In some forms, it is desirable that at least one material of the straps used to position and stabilize the structure be breathable. In another example, the straps may be formed from breathable neoprene replacements. For example, a neoprene replacement can have inner and outer elastic layers that include a porous, four-way stretchable fabric. The inner layer is designed to wick moisture away from the surface of the skin, while the outer fabric is a loop fabric designed to receive ^Velcro® hooks.

The fabric on the user contact side may preferably have the same fabric as the fabric on the non-user contact side so that the stretch properties of the strap are approximately equal on both sides. Also, preferably, the fabric on the user contact side has the same heat shrink properties as the non-user contact side. This is to prevent the positioning and stabilizing structure from deforming unevenly when handled or exposed to heat or otherwise thermoformed.

The fabric on the user contact side may be a different fabric than the non-user contact side so that the fabric on the user contact side is more comfortable than the non-user contact side.

The straps can be cut from sheets of material (eg, flame laminated), or from rolls of narrow elastic (eg, elastomer and/or fabric) straps, then thermoformed and ultrasonically welded to create rounded edges, then ultrasonically welded on Together. The straps may have a geometry that allows them to nest on the sheet to increase throughput, eg, the geometry may be substantially linear.

In some forms, the positioning and stabilizing structure may include straps configured as separate elements. In this way, the positioning and stabilizing structure may be constituted by strap elements, ie strap elements. For example, the strap 48 may be attached to the parietal portion 38, such as by a welded joint. Individual elements can be joined together during the manufacturing process. Alternatively, the straps of the positioning and stabilizing structure may be configured as or made from a single piece. In another example, strap 48 and parietal portion 38 may be cut from one sheet of material.

Designing the straps individually may allow for relatively little flexibility in manufacturing the straps, which contributes to increased throughput and a simpler manufacturing process. Furthermore, the design of the strap pieces may allow for less material waste when cutting from sheet material, eg due to the generally rectangular shape of the parietal straps. Furthermore, manufacturing the strap elements as separate components may allow for the replacement of materials that are less expensive, more comfortable, and/or have an aesthetically pleasing color.

By using different materials, different strap thicknesses, and/or different components, it is possible to additionally reduce the width of the straps of the positioning and stabilizing structure 14, and thus reduce the footprint. Different materials and/or less expensive materials may be used for some components or portions of structure 14, eg, with the same support and/or comfort. In an example, the parietal portion of the cuff may have an increased thickness compared to the occipital portion of the cuff. This increases comfort. Additionally, the smaller overall dimensions of the occipital portion of the cuff may allow the user to flex their head back toward their spine (eg, in a posterior direction) with additional freedom of movement.

The joints between adjacent strap portions may be configured as thinned regions or thinned junctions to facilitate bending. The thinned area can be used as an inflection point or hinge (eg, a living hinge) to provide increased flexibility when needed. Bend points or hinges can be reinforced using hot melt seam tape, or a thinner fabric layer with adhesive backing, or other reinforcement methods.

The hinged feature of this connection may allow the strap to better conform to the shape of the user's head. A combination of linear and nonlinear joints can be used to achieve the desired level of flexibility and bending orientation, as well as the desired level of three-dimensional shaping, to form a part constructed from a series of parts that were originally flat materials such as fabric or paper. Such shaping may include darts, pleats, gathered or curved seams.

In some examples, materials with different degrees of flexibility may be combined in an alternating fashion to form controlled regions of flexibility. Components can be stacked one on top of the other and ultrasonically welded together with no space in between. The user interface components may be constructed of a soft material, such as a soft fabric.

In an example, the forehead support connectors 24 that extend through the user's frontal bone to connect to the support cuff 16 may be connected together by welding, such as ultrasonic welding. In an example, portions of the forehead support connector 24 and the cuff 16 may overlap. These components can be placed in an ultrasonic welding tool.

The advantage of the ultrasonic welding process is that flush or butt joints do not increase the thickness of the components at the joint and are visually appealing, unlike stitching where the components must overlap and which results in uneven thickness. Even if the edges of two or more parts are butted together and stitched without any overlap or substantial overlap to form the stitch, the stitch will result in a rougher, stiffer and raised joint. In addition, flush or butt joints formed by ultrasonic welding can result in a smooth connection, which reduces skin irritation, chafing, or facial markings, even when reinforced with seam reinforcement tape. The advantage of using the overlapping ultrasonic welding variant is that multiple parts can be connected in a single machine in one operation. Additionally, the ultrasonic welding process can be designed such that the joints are embodied as thinned regions or thinned portions between components.

In an embodiment, the strap can be thermoformed, and then the edges of the strap can be ultrasonically cut. Thermoformed and ultrasonically cut straps provide rounded edges that provide significantly reduced facial imprinting in use. Additionally, the thermoformed and ultrasonically cut edges are softer and less frictional, which provides a more comfortable feel on the user's face in use, eg, around the user's ears.

In another embodiment, at least a portion of the positioning and stabilizing structure may be constructed of spacer fabric, wherein the edges of the spacer fabric may be ultrasonically welded. This rounds the edges of the spacer fabric, reducing facial marks and increasing user comfort.

In embodiments, one or more aspects of the positioning and stabilizing structure may be configured to enhance comfort. For example, the rigid member may be relatively thin. In another example, the straps may include nylon rigidizers encapsulated in foam. In such an embodiment, the density of the foam may be increased to improve comfort and reduce the chance of feeling nylon rigidity. Alternatively, the thickness of the foam can be used to alter the softness or roundness of the edges of the straps. For example, thicker foam layers are more likely to produce rounder corners than thinner foam layers. In another embodiment, the foam may start from one thickness and be compressed to another thickness during processing.

In one embodiment, the foam on the user contact side may be less dense or have a lower stiffness than the foam on the non-user contact side. It is also possible to have more than one foam layer and more than one component.

In some alternative embodiments, the rigidizer may comprise a semi-rigid molded part overmolded with a soft polymeric material such as TPE, TPU. The polymeric material provides a softer material that contacts the user's face in use. In some forms, the molded part may have a soft touch or flocked coating.

In certain forms of the present technology, the positioning and stabilizing structure may be formed with a biocompatible material as the outer surface, such as silicone rubber, fabric laminate, and the like. Biocompatible materials can be non-toxic and reduce any risk of skin reactions.

In some forms of the present technology, the positioning and stabilizing structures may be formed from durable materials that can withstand everyday use, including repeated disassembly and cleaning.

In some forms, the reduction in the overall weight of the head mounted display may be proportional to the reduction in one or more of the following: (a) the number of parts; (b) the stiffness of the positioning stabilization structure; (c) The stiffness of the interface structure; and (d) the ability to adjust the characteristics of the head mounted display, such as the ability to adjust, for example, the positioning and stabilization structure or the interface structure.

For example, foam (eg, polyurethane foam or viscoelastic foam) or foam-like parts can be lighter and more compliant than silicone parts. In another example, spacer fabric comprising a lightweight material such as fabric may be used to bridge portions of the positioning and stabilizing structure to illustrate weight savings. However, where some stiffness is required, the use of silicone or TPE (eg, in frame rigidizers) may be appropriate.

Forehead support arrangement

Referring to FIG. 3 a , the forehead support connector 24 of the positioning and stabilizing structure 14 may be connected to the upper edge region 21 of the display unit housing 22 . In some forms, the connector 24 may connect to the display unit housing 22, eg, around a forehead support 25 (see, eg, Figure 13a), which may be adjusted to allow the positioning and stabilizing structure to adapt to the configuration of the user's face .

forehead support

Referring now to Figure 13a, a forehead support 25 may be connected to the upper edge region 21 of the display unit housing 22, and in some forms may be mechanically coupled to the forehead support connector 24. The support 25 may include a forehead contact portion 27 adapted to contact the user's forehead to support and stabilize the load of the display unit 12 .

The forehead support 25 may be configured to be substantially straight or may be curved. Where the connector (ie, the forehead support 25) is curved, the curvature generally follows the curvature of the user's forehead. While this is the most likely configuration, it is within the scope of the present invention to use forehead supports 25 with opposite curvatures, or any combination thereof. The forehead support 25 may be made of thermoplastic material.

The forehead support 25 may be presented at an angle generally parallel to the user's forehead to provide improved comfort for the user. Advantageously, this may reduce the likelihood of pressure ulcers that may result from uneven presentation. In use, some user anatomy may require the forehead support 25 to be positioned high above the forehead. In this case, the presentation angle of the support 25 can be adjusted to suit the user.

The forehead support 25 may be provided with one or more openings. These openings may serve a variety of purposes, including attachment points to the housing, attachment points to any other support surface, attachment points for securing the head-mounted display to the user's straps (eg, forehead support straps 48 ) Connection points, and holes for forehead contact parts such as the forehead contact pad (or forehead pad).

In some forms of forehead support 25, the aperture is designed to receive a forehead pad. Apertures may be arranged around the forehead support 25 in a manner that allows the user to adjust the position of the forehead pad.

The aperture is also designed to allow the user to securely attach the forehead pad to the forehead support 25 . In some forms, the aperture is designed to allow the user to securely and reversibly connect the forehead pad to the forehead support 25 . In some forms, the forehead pad is adapted to releasably engage the forehead support 25 .

In one form, the forehead pad is generally plate or disc-shaped. In other forms, the pad may have a concave surface corresponding to the convex portion of the user's forehead in use. Possible shapes for the base of the forehead pad include rectangular and oval.

In one form, the forehead pad may include one or more sections. In an embodiment, two base portions of the forehead pad are provided so as to be positioned over the user's left and right eyebrows.

forehead contact

The forehead contact portion 27 includes a forehead contact surface 29 which, in the use position, is located on the forehead region of the user. In some forms, the forehead contact portion 27 may be made of an elastomeric material.

Contact surface 29 may optionally include a raised surface pattern. This pattern reduces the likelihood of a suction effect on the surface, thereby reducing blood draw in the area and making the contact part more comfortable. The raised pattern has the added benefit of reducing sweating. In another embodiment, the surface may be sandblasted to improve ventilation and reduce the likelihood of sweating.

In some forms, the contact surface 29 may have cutaway portions to improve flexibility of the contact portion. Another advantage of the cut-out portion is that the contact portion 27 can better accommodate rolling and twisting of the display unit on the user's face in use. Another advantage of the cutouts in the contacts is that they can reduce the effects of a single pressure point on the forehead, eg reducing discomfort.

In some forms, the contact portion includes a sheath that defines a hollow chamber filled with a viscous medium such that the wall of the sheath forming the contact surface 29 is substantially on its side facing away from the user's forehead region Withstand the pressure of viscous media. The hollow cavity filled with viscous material can be used as a part of the contact between the user and other parts of the positioning and stabilizing structure, such as part of the support cuff, and can also be used in the interface part.

In some forms, the forehead contact may comprise materials including rubber and flexible plastic. In some embodiments, the contact portion is composed of cured liquid silicone rubber or silicone of suitable hardness. These examples are illustrative only and not limiting in any way.

Forehead Support Connector Strap

3a to 3c, the forehead support connector 24 of the positioning and stabilizing structure 14 includes a forehead support strap 48 disposed generally along or parallel to the sagittal plane of the user's head . The strap 48 is adapted to be connected between the upper edge region 21 of the display unit housing 22 and the parietal portion 38 of the rear support cuff 16 . In one example, strap 48 may be non-adjustably attached (eg, by welding) to parietal portion 38 , and strap 48 may be adjustably attached to display unit housing 22 by adjustment mechanism 50 .

Strap 48 is adjustable to allow for dimensional control of forehead support connector 24 . The ends or tabs 54 of the straps 48 pass through the forehead support holes 52 in the upper edge region 21 of the display unit 12, as shown in Figures 3a and 3c. The strap 48 may be secured to itself after passing through the aperture 52 in the display unit 12, for example by hook and loop fasteners, which allow for fine or subtle adjustment of the strap for comfort and fit (eg, elasticity). In one example, the forehead support strap 48 may comprise a similar material as the rear support cuff 16 and/or the attachment strap 42, eg, a fabric-foam composite (eg, a breathable material, eg, including an outer fabric layer and an inner Multilayer construction of foam layers).

The forehead support connector 24 supports the weight of the display unit 12 . The length of the straps 48 between the upper edge region 21 of the display unit 12 and the parietal portion 38 of the cuff 16 can be adjusted by pulling more or less of the straps 48 through the holes 52 . Accordingly, the strap can be adjusted to raise or lower the position of the display unit 12 relative to the user's nose, eg, to adjust the angle or raise the display unit 12 relative to the user's face. Advantageously, this adjustment may move the display unit housing 22 away from the user's nose to relieve pressure felt on the face, nose and/or cheeks. The forehead support connector 24 secures the display unit 12 in place so that the display unit does not slide down or sideways over the user's head.

In one example, the thickness and/or width of the forehead support strap 48 may vary along at least a portion of its length, eg, the forehead support strap 48 may include wider and thinner sections along its length, for easy connection and load distribution.

In one example, the adjustment mechanism 50 is positioned out of contact with the user's frontal region in use.

In an alternative example, the positioning and stabilizing structure 14 does not include the forehead support connector 24/forehead support strap 48, eg, see the examples of Figures 5a to 5c.

4a to 4c illustrate a support for a head mounted display system 110 according to a second example of the present technology. In Figures 4a to 4c, the same reference numerals denote similar or identical parts as in Figures 3a to 3c, but with the addition of 100 to allow for, for example, the display device 112, the positioning and stabilizing structure 114, the rear support collar 116, Temporal connector 118, posterior edge region 120, display unit housing 122, forehead support connector 124, temporal arm 126, parietal portion 138, occipital portion 140, connecting strap 142, forehead support strap 148, adjustment mechanism 150 , forehead support hole 152, end 154, etc. examples. Referring to FIG. 4c , the forehead support connector 124 may also include a forehead support rigidizer 156 . The forehead support rigidizer 156 may provide further stability and support for the display unit 112 above the user's nose and cheeks, ie, reduce pressure on the user's nose and cheeks. The rigidizer 156 may be attached to the upper edge region 121 and form at least a portion of the forehead support aperture 152 to receive the ends or tabs 154 of the straps 148 for positioning and sizing of the stabilization structure 114 . As shown, a forehead support strap 148 is disposed below the forehead support rigidizer 156 for comfort and load distribution.

In some forms, the adjustment mechanism 150 may also include an angle adjustment mechanism for easily raising the visor from the in-use position to the stowed position, ie, the unused position.

In one example, the system may be constructed and arranged to redistribute one or more components from the display unit to the positioning and stabilizing structure, eg, redistributing weight from the display unit to the positioning and stabilizing structure. For example, forehead support rigidizer 156 and/or forehead support strap 148 may be used to at least partially support one or more non-positioned essential electrical components, such as batteries, hard drive storage, to transfer weight from the user's head The front of the unit is shifted to a more central position, that is, to balance the weight of the display unit. In an alternative example, one or more components of the display unit may be at least partially supported by the rear support cuff 116 and/or the temporal connector 118 to redistribute weight.

interface structure

The user interface can be partially characterized according to the design intent of where the interface structure engages the face in use. Some interface structures may be limited to engagement with regions of the user's face that protrude beyond the arc of curvature of the face-engaging surface of the interface structure. These areas may typically include the user's forehead and cheekbones. This can lead to discomfort for the user at the localized pressure point. Other facial regions may not be engaged at all by the interface structure, or may only be engaged in a negligible manner, which may not be sufficient to increase the translation distance of the clamping pressure. These areas may typically include the sides of the user's face, or the area adjacent to and surrounding the user's nose. To the extent that there is a mismatch between the shape of the user's face and the structure of the interface, either or both form an appropriate contact or other relationship.

In some embodiments of the present technology, the interface structure may include a single seal-forming element that, in use, covers a portion of each of the nasal ridge area, the frontal bone area, and the left and right infraorbital rim areas of the face. In some embodiments, the interface structure can be designed for mass manufacturing. For example, the interface structure can be designed to comfortably fit a variety of different facial shapes and sizes.

8, in one form of the present technology, the head mounted display system 410 further includes an interface structure 411 that provides a facial interface or face interface 413 arranged to be in use with the The user's faces are engaged and in opposing relationship. In some forms, the interface structure 411 may provide a cushioning function to improve the overall comfort of the user. In some forms, the facial interface 413 may be arranged to at least partially block light from entering the display unit housing 422 in use.

The interface structure 411 extends around the display housed by the display unit housing 422 . The interface structure 411 may extend around the display and define a viewing opening of the display. In an example, the facial interface 413 extends around the user's eyes and can engage (eg, light seal) the user's face, eg, along the user's nose, cheeks, and/or forehead.

The positioning and stabilizing structure 414 may be connected to the display unit housing 422, whereby the interface structure 411 of the present technology remains in an operable position on the user's face. In some alternative forms, the positioning and stabilizing structure 414 may be attached to a portion of the interface structure 411, thereby holding the interface structure 411 of the present technology in an operable position on the user's face.

Figure 15a shows a front cross-sectional view of another embodiment of an interface structure 611 in use, wherein the interface structure 611 is otherwise generally formed to be symmetrical on either side of the central axis A-A. The left-hand side of the central axis A-A shows an example of an interface structure 611 as it may be positioned to engage a user's face in use generally around the perimeter of the user's eyes. The right hand side of the central axis A-A shows an example of the user's face below the interface structure 611 , showing the area of the face that may be in contact with the interface structure 611 in use. Broadly speaking, the interface structure 611 may be formed over the cranioparietal muscle 601, the region of the user's sphenoid bone 603, spanning the lateral cheek region 605 between the sphenoid bone 603 and the left or right zygomatic arch 607, above the zygomatic arch 607, It spans the inner cheek region 609 from the zygomatic arch 607 towards the alar ridge 619, and on the nasal ridge 617 below the point of the bridge of the user's nose to enclose a portion of the user's face therebetween.

The interface structure 611 provides a substantially continuous facial interface or face-engaging surface 613 around the perimeter of the user's eyes, i.e., the facial interface or face-engaging surface 613 is adapted to contact the user's face in the following areas: the upper canthus, the sphenoid bone Regionally, spanning the outer cheek area between the sphenoid bone and the left or right zygomatic arch, above the zygomatic arch, spanning the inner cheek area from the zygomatic arch toward the alar ridge, and on the nasal ridge below the point of the user's nasal bridge, to use A part of the person's face is enclosed in between. That is, the interface structure 611 provides continuous contact (eg, at least a light seal) around the entire eye of the user to prevent or at least reduce the ingress of unwanted light. In this regard, the substantially continuous facial interface or face engaging surface 613 may be contoured and/or angled along its perimeter to conform or closely follow the contours/facial contours of the patient's face.

In use, the interface structure 611 may be pressed against the user's face (eg, via a positioning and stabilizing structure), and the interface structure 611 is configured and arranged such that the compressive force or load applied to the user's face is distributed around its perimeter or spread out so that the load is not concentrated on the minimum number of contact points. Additionally, the interface structure 611 includes varying flexibility around its perimeter that is configured to allow selective distribution of forces to the user's face. For example, the interface structure may include a first degree of compliance at a first region and a second degree of compliance at a second region, and the first and second regions are configured around the perimeter of the interface structure to allow selective distribution of forces onto the user's face. This arrangement allows for a higher level of pressure distribution over areas of the user's face that are more suitable for absorbing pressure, such as the canthus and sphenoid bone.

In some forms of the present technology, a system is provided in which the interface structure is integrally formed with the display unit housing. In some forms of the present technology, such as the embodiments shown in Figures 15b, 16a-16c, 18, 19, and 20a-20d, a system is provided in which the interface structure is formed as a separate removable component that The removal component is configured to be integral with and retained by the display unit housing so as to engage and be in opposing relation to the user's face in use. That is, the display unit housing may provide a common frame configured and arranged to removably retain each of the plurality of interface structures (each corresponding to a different size and/or shape range and/or material type) to allow for swapping variations of the interface structure based on fit or user preference.

Referring to FIG. 8, when the interface structure 411 is formed as a removable component, multiple embodiments of the interface structure 411 can be formed, where each embodiment is configured to correspond to a different range of sizes and/or shapes. For example, head mounted display system 410 may include a form of interface structure 411 suitable for use with large sized heads. This may not be suitable for users with smaller sized heads and may therefore result in reduced comfort and performance. An interface structure 411 suitable for small size heads may not be suitable for large size heads, and may also result in reduced user comfort and performance. Accordingly, a removable interface structure 411 may be advantageous as it enables a user to customize the head mounted display system 410 and select the interface structure 411 that best suits their personal facial simulation characteristics. In some further embodiments, users can measure their facial simulation features in order to custom design and form suitable interface structures 411 . The removable interface structure 411 also allows for applications such as medical use, where the structure 411 may be disposable or may allow individual cleaning to comply with surgical procedures.

15b, when the interface structure 611 is formed as a removable component, it may be formed as a chassis 621 comprising a rigid or semi-rigid material configured to facilitate engagement with the display unit housing 622. For example, in some embodiments, the chassis 621 may be formed of a plastic material. The chassis 621 may include one or more engagement elements 623 around its perimeter, the engagement elements 623 being configured to removably mate with corresponding elements configured on the display unit housing 622 . Suitable engagement elements may include one or more of clips, fasteners, magnets, or Velcro, so long as the number and location of engagement elements used in any given embodiment ensures that the chassis 621 and The display unit housings 622 are fixed relative to each other without allowing significant sliding between them. For example, as shown in Figures 15a and 15b, the engagement elements 623 may be two clips laterally spaced apart from each other so as to be positioned on symmetrically opposite sides of the central axis A-A. Similar engagement elements 723 are shown in Figures 16a to 16c. In some further embodiments, in addition to the clips formed in the upper in-use portion of the chassis, a series of indentations may be formed in the lower in-use portion of the chassis. As will be understood by those skilled in the art, other combinations of engagement elements are also considered to be within the functional scope of the present technology. In some further embodiments, the display unit housing may include grooves that engage the outer perimeter of the chassis to provide additional vertical support for the engaging elements and further reduce relative movement between the display unit housing and the interface structure .

The chassis 621 serves as a base for the rest of the interface structure 611 . Additionally, the chassis 621 may provide some rigidity and necessary structure for the interface support structure 615 of the interface structure 611, and also to the facial interface or face engaging surface 613 through the interface support structure. The chassis 621 may be adhesively bonded to the support structure 615, or in some embodiments mechanically bonded to the support structure 615, wherein the method used to bond the chassis 621 to the support structure 615 depends on the composition of the materials and their specific structure. The chassis 621 is generally bendable laterally across the face of the user. In some embodiments, the curvature may generally correspond to the curvature of the user's face. In some embodiments, such as in Fig. 16b, the curvature of the chassis 721 may be relatively small, wherein the support structure 715 is formed to extend therefrom to bridge the distance to the user's face, and thus has a transverse direction across the user's face. depth of change. In other words, the support structure 715 may extend to a greater depth in regions adjacent to the sides of the user's face than in regions adjacent to the central axis A-A of the user's face to a smaller depth. In some embodiments, the chassis 621, 721, 821 may advantageously remain the same size and shape, while the remainder of the interface structure 611, 711, 811 may vary to provide multiple modular embodiments, or to suit the user A custom-designed modular embodiment of a personal facial simulation feature.

In some embodiments, two or more of the face engaging surfaces of the chassis, support structure, and interface structure may be integrally formed as a single piece including different thicknesses and finishes across it to provide at the chassis A desired level of rigidity or cushioning is provided at the face engaging surface. For example, in some such embodiments, the interface structure may be formed from a single silicone body. In alternative embodiments, the interface structure may be integrally formed as a single piece from a foam or elastomeric material.

In some embodiments, chassis 721 may be formed as a separate component from the remainder of interface structure 711 fabricated as a single integrally formed body (eg, see Figures 16a-16c). For example, in some embodiments, one or more regions of the facial interface or face-engaging surface 713' may be formed together around the perimeter of the interface structure 711' as an inward extending from the support structure 715' (see, eg, FIG. 17A ) Protruding flange-like edges (eg, membranes or flaps). Alternatively, in some embodiments, the face-engaging surface 713'' may be supported by a spring-like support flange 725'' that originates from the support structure 715'' and is substantially hidden from the face-engaging surface 713' ' (see, for example, Figure 17b). For example, both the support flange 725" and the support structure 715" may be formed of silicone, with the support flange 725" having a thinner material thickness than the support structure 715", so as to provide a better material for engaging the user's face. Portions of the interface structure 711 ″ provide a more compliant but resilient spring-like support. In some embodiments, the face-engaging surfaces 713" may loosely cover the support flange 725" such that each face-engaging surface may independently respond to compressive pressure applied when interacting with the user's face in use . In some embodiments, the overlaid face-engaging surfaces 713" may be combined with the support flange 725", the overlying face-engaging surfaces overlying the support flanges, whereby they effectively form a single body that conforms to the Responsive to compressive pressure applied when interacting with the user's face in use.

The face engaging surface 713 may include one or more regions of silicone, or one or more layers of fabric material or foam. One or more regions of the face engaging surface 713 may be formed with varying thicknesses and/or varying surface finishes, whereby the resulting face engaging surface 713 when pressed against the user's face in use There may be variable compliance along it.

Some or all of the face engaging surfaces 713 may be areas of (relatively) reduced friction. When silicone is used, this can be achieved by providing a so-called matte finish. With the reduced friction area, the sealing surface can adhere to the user's face compared to without the reduced friction area. For example, areas of reduced friction may be provided to allow the sides of the user's nose to slide freely along the face engaging surface 713 . Likewise, a fabric or foam material with a (relatively) reduced friction outer surface finish may be used to form a portion or all of face engaging surface 713 .

Some or all of the face engaging surface 713 may be a (relatively) high friction area. When silicone is used, this can be achieved by providing a so-called polished surface. With a high friction area, the sealing surface can adhere better to the user's face, thereby reducing slippage of the display unit housing 722, than without the reduced friction area. Likewise, a fabric or foam material with a (relatively) high friction outer surface finish may be used to form part or all of the face engaging surface 713 .

In some embodiments, one or more different regions of the face-engaging surface 713 may be formed with different finishes or different levels of friction in order to optimize the grip and retention properties of the face-engaging surface 713 while also improving user comfort properties (eg, having one or more areas of a matte surface and one or more areas of a polished surface). In some embodiments, the entire face engaging surface 713 may be formed using a combination of two or more materials, where different materials may be used in different areas. This can improve the retention of the display unit housing 722 while also improving user comfort.

In some embodiments, the thermal wicking properties of the face-engaging surface can be improved through the use of a silicone material, thereby improving user comfort.

Referring to Figures 18 and 19, the support structure 715 may be formed to include one or more distinct regions 715', 715" having different thicknesses and/or being further supported by the addition of reinforcing ribs 715"'. In some areas, the support structure may be thinner 715', or generally provide less resistance to compression, such as in areas adjacent to the user's zygomatic arch, cheekbones, and nose. In some other areas, the support structure may be thicker 715", or may generally be configured to provide greater resistance to compression, for example, in areas adjacent to the user's forehead or sphenoid bone. In some embodiments, the thickness of the support structure 715 may vary incrementally thereon, rather than as distinct regions having a single thickness. In some embodiments, the reinforcement ribs 715"" may be formed as wide regions of thicker material, while in other embodiments, the reinforcement ribs 715"" may be formed of narrow and/or less compliant materials The resulting lace-like support.

The thinner areas of the support structure 715 may provide more compliant but resilient cushion support for the upper face engaging surface 713 . For example, in some embodiments, the thinner regions may be formed of a silicone material having a thickness of 0.3-0.5 mm. Conversely, thicker regions of support structure 715 may provide less compliant, more resistant, and relatively rigid structural support for the upper face engaging surface 713 . For example, in some embodiments, the thicker regions may be formed from a silicone material having a thickness of 1.5-2 mm. By forming the support structure 715 from a plurality of different thicker and thinner regions or a mixture of incrementally varying thicknesses, the load resistance of the support structure 715 may be optimized. Thus, in use, the overall compliance of the interface structure 711 at any given point around the perimeter of the user's face may be a result of the characteristics of the chassis 721 , the support structure 715 and the face engaging surface 713 .

In some embodiments, it may be advantageous for the interface structure 711 to balance compliance for elasticity and rigidity so as to disperse the resistance exerted by the interface structure 711 when compressed against the user's face in use. Additionally, it may be advantageous to provide an interface structure 711 in which the translational distance of compressive pressure applied when interacting with the user's face in use is spread out over areas of the user's face that are more suitable for absorbing pressure, rather than allowing loading Locally focus on the fewest number of touch points. Accordingly, the overall compliance of the disclosed interface structure 711 can be formed to allow the face-engaging surface 713 to be suitably molded to the user's face. This may advantageously reduce the areas of the face engaging surface 713 that are spaced from, or do not sufficiently interact with, the user's face to facilitate dispersing pressure. For example, referring to Figure 15a, the regions of the user's upper zygomatic bone 601 and sphenoid bone 603 below the temporal region can withstand higher pressure levels, while the regions on either side of the user's zygomatic arch 607 can withstand lower pressure levels. pressure level. Furthermore, for some areas, it may be preferable to receive only relatively light pressure or no pressure at all, such as on the zygomatic arch 607 itself or on the user's nasal ridge 617 . In areas that can only withstand light or are substantially free of pressure, it is advantageous for the face engaging surface 713 to be highly compliant so as to interact gently there, thereby reducing or preventing the ingress of unwanted light.

In some further embodiments, the interface structure 811 may include a discrete chassis 821, a support structure 815, and a face engaging surface 813 (eg, see Figures 20a-20d). For example, the face engaging surface 813' may be formed as a foam pad 829' attached directly to the upper portion 827 of the support structure 815 (eg, see Figure 21a). The upper portion 827 of the support structure 815 may be formed to extend inwardly from the perimeter of the walls of the support structure 815 as a spring-like flange for supporting the face engaging surface 813' to prevent buckling in use.

In some alternate embodiments, the face-engaging surface 813 ″ covers a foam pad 829 ″ attached directly to the upper portion 827 of the support structure 815 (eg, see FIG. 21 b ) such that the foam pad 829 ″ is on the face-engaging surface 813'' below. For example, the silicone or fabric face engaging surface 813" may be loosely supported or at least partially bonded to the foam pad 829". In another form, the face engaging surface 813" may extend at least partially on or beyond the foam cushion 829". The foam cushion 829" may serve as a spring-like compliant but somewhat resilient cushion support that is hidden beneath the face engaging surface 813". In such an embodiment, the material that contacts the user's face may be a material that is easier to clean than foam, and thus the hygiene of the interface structure 811 may be improved.

The foam pads (eg, foam pad 829', foam pad 829'') may be made of, for example, any suitable material, such as one or more of the following example materials: polyethylene, PU, EVA. In some cases, the foam pad may be a semi-open closed cell foam, such as a foam made of polyurethane. Semi-open cell foam pads may have limited permeability, eg, permeability characteristics in the range of about 0 to 20 liters per minute. The cross-section through the foam pad may take the shape of a substantially triangular or pear shape, with a sealing surface that follows the contours of the user's face. The foam used can define the physical properties of the entire interface structure 811 . The foam can allow the interface structure 811 to accommodate major changes and successfully conform to the contours of the user's face. The compliant nature of the foam padding can also provide micro-adjustment and thus can form a comfortable interface layer when interacting with the user's skin.

In another example of the present technology, the foam pad 829 ″ may be affixed (removably or permanently) to the support structure 815 or, in some further embodiments, directly to the chassis 821 . The foam pad 829" may be configured to have varying stiffness along different regions thereof to increase user comfort.

In some forms of the present technology, the face-engaging surface of the interface structure may include a cushion formed from a semi-compressible material such as a dense foam (eg, polyurethane foam or viscoelastic foam) or other similar material , such as rubber, which can be formed to be substantially elastically compressible while resisting compression to some extent. The resulting semi-rigid yet elastically compressible pad can additionally be formed to maintain a curvature with a relatively small radius, thereby providing a "one-size-fits-most" user interface pad.

In some forms of the present technology, the interface structure may be sized within a range of widths and/or shapes so as to be customizable to mimic the features of the user's face. For example, referring to FIG. 22 , the interface structure 911 may include two adjustable face engagement surfaces 913 ′, each face engagement surface 913 ′ being located on a respective one of the left and right hand sides of the interface structure 911 . Each adjustable face-engaging surface 913 ′ is slidably movable relative to each other and movable relative to the substantially rigid chassis 920 . As the adjustable face engaging surfaces 913' are slidably moved away from each other, the overall width W of the interface structure 911 may increase. As the adjustable face engaging surfaces 913' are slidably moved toward each other, the overall width W of the interface structure 911 may decrease. In some embodiments, the interface structure 911 may also include two static face engaging surfaces 913", one spanning the user's nose area and one spanning the user's forehead area. Each of the two static face-engaging surfaces 913 ″ can be formed with sufficient length such that respective distal ends 914 ″ of the two static face-engaging surfaces 913 ″ are relative to the respective distal ends of the adjustable face-engaging surfaces 913 ′. Ends 914' overlap. In this way, the adjustable and static face-engaging surfaces 913', 913'' may together form a functionally continuous interface structure 911 around the user's eyes. The resulting interface structure 911 can provide an improved fit for the user's personal facial mimicry features, which can advantageously improve the translation distance of the interface structure 911 that increases the clamping pressure applied to the user's face when tightening the locating element and stabilizing structure Ability. This can also improve the comfort of the interface structure 911 and can reduce the occurrence of localized pressure points. In some further embodiments, the static face engagement surfaces 913 ″ can be formed with a shape and length such that they can also mask the interior of the display unit housing 922 to prevent unwanted light from entering. In some further embodiments, the static face engagement surface 913 ″ may be formed with a shape and length such that an air gap is formed between the static face engagement surface 913 ″ and the adjustable face engagement surface 913 ′. This can advantageously improve the breathability and comfort of the head mounted display system 910 .

In some embodiments, the adjustable face engaging surface 913' can be moved relative to the chassis 920 or the display unit housing 922 by adjusting the relative position of the aperture mirror 923 within the display unit housing 922 accordingly. For example, referring to Figures 23a and 23b, the relative position of the axes D-D, E-E of the eyepiece 923 through the display unit housing 922 may be adjustable. In some embodiments, the adjustment can be made by moving a slidable tab protruding outward from the display unit housing 922 . Since the spacing between the user's eyes may be proportional to the width of the user's head, adjustment of the relative position of the eyepiece 923 may also provide appropriate adjustment of the width of the interface structure 911 . For example, the relative position of the axes D-D, E-E through the eyepiece 923 can be moved from a wider width XX (Fig. 23a) to a narrower width YY (Fig. 23b), thus also changing the overall width of the face engaging surface 913' from a wider width XX (Fig. 23a) to a narrower width YY (Fig. 23b) The wide width XX' (Fig. 23a) to the narrower width YY' decreases proportionally by a corresponding distance (Fig. 23b). Likewise, eyepiece 923 can be moved from narrower width YY' (Fig. 23b) to wider width XX (Fig. 23a), thereby changing the overall width of face engaging surface 913' from narrower width YY' (Fig. 23b) to wider width XX ' increases proportionally to the corresponding distance (Fig. 23a). In some embodiments, the face engaging surface surrounding nose piece 931 is also adjustably movable by movement of the relative positions of axes D-D, E-E through the eyepiece. For example, when the interface structure 911 is moved to a narrower configuration (eg, Figure 23b), the nose piece 931 is adjustably narrowed and positioned into the space between the eyepieces in the display unit housing 922, or when the interface structure 911 is moved To the wider configuration (eg, Figure 23a), the nose piece is adjustably pulled wider and removed from the space between the eyepieces in the display unit housing 922.

In some alternative embodiments, the adjustable face engagement surface is movable relative to the chassis by a uniquely configured adjustment mechanism, such as a slidable tab or a rack and pinion type adjustment mechanism.

The profile of the sides of the nose, including the frontal process above the nasal bone, proximate the maxilla, and the lateral cartilage can be highly variable between users. Additionally, the bridge of the nose can be particularly sensitive when forces are applied to it through the interface structure. Furthermore, it may be important to avoid blocking the user's air passage during use. An interface structure can thus be formed to avoid applying compressive pressure to the nasal region. Referring to Figures 15a and 15b, the chassis 621 includes a nose piece 631 that effectively leaves a gap in the otherwise substantially continuous face engaging surface 613. The nose piece 631 may be formed wider and deeper than the user's nose in order to avoid one or more of the potential problems discussed above. In some further embodiments, the nose piece 631 may be generally saddle-shaped. The nose bridge 631 may be formed as a continuation of the remainder of the face engaging surface 613 , or in some embodiments, the nose bridge 631 may be formed as a discontinuous portion of the face engaging surface 613 . In embodiments where the nose piece 631 is a discontinuous portion, the nose piece 631 may be formed to be removable. This can advantageously improve the ease of cleaning the nose piece 631 . Exemplary nose pieces 731, 831 are also shown in Figures 16a to 16c and Figures 20a to 20d.

For example, in some embodiments, the face-engaging surface 1013 of the nose piece 1031 provided to the chassis 1021 may be formed of a pliable material, such as flaps 1033, that can easily be elastically bent inward to accommodate the user's nose (eg, See Figure 24). In use, the flaps 1033 may be located on the side of the bridge of the user's nose. In some embodiments, the face-engaging surface 613 of the nose piece 631 may be formed as a cover of loose material that allows the user's nose to enter without applying any significant resistance. Alternatively, in some embodiments, the face engaging surface 613 of the nose piece 631 may be formed from a portion of a highly stretchable and extrudable material, such as one or more of fabric or foam.

Typically, an interface structure in accordance with the present technology may be constructed of one or more materials, such as silicone, fabric material, or foam. For example, in some forms of the present technology, the interface structure may include a layer of viscoelastic polyurethane foam. In another example, in some forms of the present technology, the interface structure may include a liquid silicone rubber (LSR) layer overmolded onto a polycarbonate or nylon chassis.

In some forms of the present technology, the interface structure is constructed of a biocompatible material such as silicone rubber.

In some forms of the present technology, one or more portions of the interface structure may be formed to be substantially opaque. In some further forms of the present technology, one or more portions of the interface structure may be a tinted matte black. This advantageously reduces unwanted light entry through the interface structure itself.

It should be understood that the choice of material can affect the compressibility, compliance and/or elasticity of the interface structure. For example, different foams with different densities will have correspondingly different compression properties. Additionally, different silicone materials with different thicknesses or flexibility will have different compression properties.

In some forms of the present technology, the interface structure may be constructed of a biocompatible material such as silicone rubber. In some further forms, the face engaging surface of the interface structure may be removable. For example, the face-engaging surface may be a removable single-use or washable cover.

Interface structures have advantages in one or more forms of the present technology. For example, in addition to the aforementioned advantages, the human facial structure can include human-to-human variation, which presents challenges in designing face-engaging surfaces that can accommodate many facial variations. These variations may include differently shaped facial structures (eg, differently shaped noses and/or differently curved cheeks) and/or different tissue contents (eg, more or less fatty tissue). These changes can result in interface structures that work well for one person but poorly for another. Also, the perceived comfort level can vary from person to person independent of facial structure.

In some forms of the present technology, the interface structures may also include one or more forehead interface structures. The forehead interface structure may be adapted to engage with the user's forehead above the display unit housing. The forehead interface structure can also be integrated with the positioning and stabilizing structure, or as a separate area of the interface structure.

medical application

The positioning and stabilizing structure and/or the interface structure may be adapted to comprise biocompatible materials, and in use, various components of the positioning and stabilizing structure and the interface structure may contact eg the skin of a user. Designing the positioning and stabilizing structure and the interface structure to include such materials is intended to protect the user from potential biological risks arising from the use of the structure.

Material Biocompatibility

According to the ISO 10993-1 standard, biocompatible materials are considered to be materials that have been adequately evaluated for their biological response in relation to safety in use. When used, the evaluation takes into account the nature and duration of expected contact with human tissue. In some forms of the present technology, materials used to position and stabilize structures and interface structures may undergo at least some of the following biocompatibility tests: Cytotoxicity-Elution Test (MeM Extract): ANSI/AAMI/ISO 10993-5 Skin Sensitization: ISO 10993-10 Irritant: ISO 10993-10 Genotoxicity - Bacterial Mutagenicity Test: ISO 10993-3 Implants: ISO 10993-6

clean

In some forms, the positioning and stabilizing structures and interface structures are designed to be used by a single user and cleaned in the user's home, eg, by washing in soapy water, without the need for specialized equipment for disinfection and sterilization.

In some other forms, components of positioning and stabilizing structures and interface structures are used in laboratories, clinics, and hospitals, where a single head mounted display system can be reused on multiple people or used in medical procedures. In every laboratory, clinic and hospital, the head mounted display system or its associated components can be reprocessed and exposed to processes such as thermal disinfection, chemical disinfection and sterilization. Therefore, sterilization and sterilization confirmation of the design of positioning and stabilizing structures and interface structures may be required according to ISO17664.

Materials that can withstand reprocessing can be selected. For example, strong materials can be used to position and stabilize structures to withstand exposure to high levels of disinfecting solutions and agitation with brushes. Additionally, some components of the positioning and stabilizing structure are detachable and can be disconnected in use to improve reprocessing efficiency.

In another example, the contact portion of the forehead support connector 24 will be in contact with the user's head in use and thus may become dirty. The contacts may be designed to be removed from the forehead support connector 24 to provide the ability to be removed for cleaning and/or replacement. It may be desirable to clean the contacts without wetting the positioning and stabilizing structure. This can be facilitated by allowing these components to be disconnected for such purposes. In another example, the rear support cuff may be in contact with the user's hair or skin when worn. Accordingly, the rear support hoop is preferably made of an easy-to-clean material, and is further designed to be removed from the positioning and stabilizing structure for independent cleaning.

Material

The surface of the interface structure or positioning and stabilizing structure that engages and interacts with the user's head can be formed with shapes and materials that help reduce point loading and pressure-induced markings and/or hot spots on the user's head characteristic. 30, in some forms, the resulting interface surface 1110 of the engagement structure 1108 can distribute the pressure load P over a larger surface area of the user's head 1120. Accordingly, the shape and material properties of the engagement structure 1108, and particularly the shape and material properties of the interface 1110, may provide improved comfort for the user.

Similarly, in some forms, the geometry of the edges of the interface surface may be shaped to follow a contour that, in combination with the overall shape and material properties of the interface surface, helps match the contours of the user's head and thus distributes pressure loads more efficiently , thereby improving user comfort. For example, the engagement surface 1110 may have a curved contoured edge 1112 that helps spread the contact load over a larger surface area, thereby reducing the pressure-induced marks and/or hot spots that point loads can create on the user's head possibilities (eg, Figures 30 and 31).

In general, an increase in surface area can be associated with a decrease in pressure and discomfort experienced by the user because the force can be distributed over a larger contact area. However, the total surface area of the interface surface needs to be optimized with respect to the overall size, volume and weight of the interface structure, which may adversely affect the user when wearing the head mounted display. For example, if the engagement surface is too large, the user may experience claustrophobia due to weight gain or experience muscle pain in the neck and shoulders.

Furthermore, in some forms, it is important that the interface surface provides comfort to the user based on the general look and feel of the outer surface when touched or when worn during use. For example, user comfort can be advantageously improved by reducing sharp edges, even those that do not touch the user. In another example, it may be advantageous to form the interface outer surface from a non-abrasive material, a material that is cool or capable of wicking moisture (eg, sweat), or a material that does not irritate the user's skin and/or a breathable material.

Therefore, the material properties of the interface structure or the interface surface of the positioning and stabilizing structure can affect the overall comfort of the user.

For example, in some forms, it may be advantageous to have a strap with an engagement structure 1108, such as a positioning and stabilizing structure, that can flexibly twist the T to conform to the contours of the user's head (eg, FIG. 31 ). The compliance and ability of the interface surface to conform to the user's head can increase the total contact surface area, thereby facilitating the distribution of tension forces over a larger contact area and reducing uncomfortable pressure points.

In other forms, the engaging structure may comprise a flexible material, such as a foam or fabric material, wherein, unlike thermoplastic materials, the interface surface may more easily conform and be formed around the curves and contours of the user's head. For example, such material properties may be advantageous for positioning and stabilizing the portion of the structure 1114 that crosses around the upper portion of the user's head 1122 (eg, FIG. 32 ). The portion 1116 of the positioning and stabilizing structure 1114, when not in use, will not flex sufficiently to engage the upper portion of the user's head 1122, and thus can flex elastically without damaging the positioning and stabilizing structure 1114 in order to conform to and assist in compressing the pressure Pressure load on the user's head.

In some forms, the engagement structure can be elastic, whereby the force distribution can be more evenly distributed across the interface surface. For example, referring to Figure 33, when the straps of the positioning and stabilizing structure 1134 are stretched apart under a load L, the strain force may be distributed substantially uniformly over the length of the straps. Therefore, the elasticity of the strap has a relatively flat force (y-axis)-displacement (x-axis) curve, indicating that the force does not change much when the engagement structure is extended (or displaced).

In some other forms, discrete regions, sections or portions of the interface structure or positioning and stabilizing structure may be formed to exhibit increased flexibility when compared to the remainder of the positioning and stabilizing structure. For example, referring to FIG. 34, region 1144 of interface structure 1142 is located near more sensitive areas of the user's face (eg, the bridge of the nose), or near facial bulges 1140 (eg, cheekbones), which may include viscoelastic foam, or may allow Similar materials with increased local compliance.

In some forms, foams used in interface structures or positioning and stabilizing structures can be formed to have densities in the range of about 55 kg/m ³ . In other forms, the density may be in the range of about 50-55 kg/ ^m3 . In other forms, the foam density may be in the range of about 55-60 kg/ ^m3 . In other forms, the foam density may be in the range of about 45-65 kg/ ^m3 . The density can also be higher or lower depending on the precise requirements of the foam. For example, the foam density can be varied over the interface structure or the positioning and stabilizing structure to have localized regions of greater compliance or localized regions of greater stiffness.

Anthropometric data model

The geometry of the head-mounted display system can be designed with reference to the anthropometric data model. Anthropometric profile models can be developed from a collection of three-dimensional head shapes. An anthropometric profile model can be used to represent sizing and clustering based on head shape variations as shown in Figures 25a to 25b (eg, the target head geometry with the first three components of variation is shown in Figure 25b), Size adjustment based on the nominal face area as shown in Figures 26a to 26b (eg the shape change in the eye/nose area with varying first four components is shown in the example of Figure 26b), and Size adjustment of anthropometric landmarks shown in 27a to 27b (eg, correlation between 2D landmarks, such as the relationship between eye position and face width at the orbit, as shown in Figure 27b).

For example, anthropometric data models can be used to determine dimensional requirements for interface structures. These requirements can account for changes in head shape and facial features based on anthropometric landmarks. In addition, the relationship between facial landmarks can be exported from the data; for example, the relationship between eye position and face width. Advantageously, the interface structure can be configured to accommodate these changes.

In another example, an anthropometric data model can be used in conjunction with a software application (eg, a mobile phone application) to compare 3D scans of users' heads and identify their head size. In this example, a user may operate their mobile phone's camera to generate a three-dimensional scan. A software application can be used to inform the user of the head size compared to the anthropometric data model and recommend appropriate dimensions, such as those of positioning and stabilizing structures, to provide the best fit. For example, a medium size can be suggested from a given number of size options (eg, small, medium, or large). Alternatively, custom sized positioning and stabilizing structures can be fabricated from a three-dimensional scan of the user based on the user's personal facial landmarks.

The head mounted display systems described above provide alternative examples of the present technology that are constructed and arranged to enhance comfort, range of fit, usability, system architecture, use in a medical environment, and manufacturability.

Head mounted display systems according to examples of the present technology provide enhanced comfort while minimizing facial marks and pain with prolonged use. For example, comfort can be achieved by providing a universal load distribution by avoiding or minimizing the load on areas prone to discomfort and redistributing the load to areas that can comfortably carry the load (eg, avoiding or minimizing the bridge of the nose and sides of the nose) load on and apply or redistribute the load to the top and/or back of the head) to optimize the load on all contact surfaces. Additionally, comfort can be achieved by providing localized load distribution, where the load is evenly distributed through design and material selection in the face area where contact is unavoidable, for example, the contact points around the eyes can be Includes compliant material that evenly distributes load and avoids sore spots/facial impressions. Additionally, comfort can be achieved by minimizing weight, as less weight in the overall system results in less tension in positioning and keeping the system in the correct configuration. In this regard, head mounted display systems according to examples of the present technology provide minimal design (eg, low profile) to achieve fit range, comfort, and correct configuration, eg, optimization of components to Minimize the size and number of components to enable the function and use of strong and lightweight materials.

Head mounted display systems according to examples of the present technology provide enhanced fit range or universal fit without sacrificing comfort, usability and cost. For example, the fit range can be achieved by providing geometry and material selection and adjustability of the adjustment mechanism. The components of the positioning and stabilizing structure are designed and materials can be selected to provide a desired force to displacement ratio, eg, a belt can stretch to a desired length under a predetermined force. The adjustment mechanism provides simplicity as the dimensions of the positioning and stabilizing structures and associated straps can be manually adjusted and set, and component parts can be minimized while maximizing ease of use, e.g. one-handed adjustment of the straps and Alternative use of magnetic clips for attachment (e.g. easy removal without losing strap settings). Furthermore, the adjustment mechanism provides minimal size and weight, which reduces the volume of the adjustment mechanism with optimal materials and minimal components. Furthermore, an enhanced fit range can be achieved through anthropometrics, where the adjustment range can be designed to fit the optimal anthropometric range for the desired market.

Head mounted display systems according to examples of the present technology provide enhanced usability through a low touch simple setup solution and a low dexterity threshold solution. For example, low-touch settings can be achieved by including stretchable materials or self-adjusting solutions with simple mechanical actuation, where only a few minor adjustments are required to achieve a proper fit. Additionally, the system may include adjustment and locking solutions to facilitate usability (ie, set and forget), eg, mechanisms to guide adjustments (eg, magnets) and locking mechanisms to set adjustments (eg, clips). Furthermore, the system provides ease of use such that it can be adjusted when worn by users with low dexterity and/or minimal vision.

Head mounted display systems in accordance with examples of the present technology provide an enhanced system architecture that optimizes component placement to minimize cost while maximizing comfort, fit range, and usability. For example, the system may provide enhanced weight distribution where electrical and/or mechanical components are positioned in desirable locations from a comfort standpoint. Additionally, the system may include modularity such that components may be selected or upgraded based on user preferences, eg, electrical components, face contact pads, straps, and/or earplugs may be selected based on preferences.

Head mounted display systems according to examples of the present technology enhance use in medical environments. For example, the system may be biocompatible and/or cleanable, with materials selected to be cleanable for reuse in a medical environment and/or to pass biocompatibility requirements.

Head mounted display systems according to examples of the present technology enhance manufacturability by providing a mass-producible solution at low cost while maintaining high quality and functionality.

As mentioned above, the present technology may find particular application in head mounted display systems in the form of virtual reality (VR) display devices and/or augmented reality (AR) display devices.

As shown in FIG. 35 , an exemplary VR display device 3000 according to an aspect of the present technology includes the following functional aspects: a display unit 3100 , a display housing 3200 , and a positioning and stabilizing structure 3500 . In some forms, functional aspects may be provided by one or more physical components. In some forms, one or more physical components may provide one or more functional aspects. In use, the display unit 3100 is arranged to be positioned near and in front of the user's eyes to allow the user to view the display unit 3100.

In some examples, the display unit 3100 may include a display screen 3104 , a display housing 3200 , an interface structure 3300 and/or an optical lens 3400 . These components may be integrally formed in a single display unit 3100 , or they may be detachable and selectively connected by a user to form the display unit 3100 . In addition, the display screen 3104 , the display housing 3200 , the interface structure 3300 and/or the optical lens 3400 may be included in the display device 3000 but may not be part of the display unit 3100 .

In an example, the display screen or display 3104 may be configured to selectively output computer-generated images that are visible to the user in the operating position. In some forms, display screen 3104 is an electronic display. The display screen 3104 may be a liquid crystal display (LCD) or light emitting diode (LED) screen.

In some forms, the display housing 3200 provides support structure for the display screen 3104 in order to maintain the position of at least some components of the display screen 3104 relative to each other and may additionally protect the display screen 3104 and/or the display unit Other parts of the 3100. Display housing 3200 may be constructed of a material suitable for providing impact protection to display screen 3104 . Display housing 3200 may also contact the user's face, and may be constructed of a biocompatible material suitable for limiting irritation to the user.

In some forms, the interface structure 3300 can extend at least partially around the display housing 3200 and can form a viewing opening. The viewing opening may, in use, at least partially receive a user's face. Specifically, the user's eye can be accommodated in the viewing opening formed by the interface structure 3300 .

In some forms, the display device 3000 can include a light shield that can be constructed of an opaque material and that can block ambient light from reaching a user's eyes. The light shield may be part of the interface structure 3300 or may be a separate element.

In some examples, at least one lens 3400 may be positioned between the user's eye and the display screen 3104. The user can view the image provided by the display screen 3104 through the lens 3400. At least one lens 3400 can help space the display screen 3104 from the user's face to limit eye strain. The at least one lens 3400 can also help to better view the image displayed by the display screen 3104. In some forms, the at least one lens includes a first lens configured to align with the user's left eye in the operating position and a first lens configured to align with the user's right eye in the operating position the second lens. In some forms, lens 3400 is a Fresnel lens. In some forms, the display includes a binocular display divided into a first segment and a second segment, the first segment aligned with the first lens and the second segment aligned with the second lens.

In one example, the display device 3000 includes a control system 7000 (see FIG. 36 ) that assists in controlling the output received by the user. Specifically, the control system 7000 can control the visual output from the display screen 3104.

In some forms, control system 7000 may include sensors 7002 that monitor different parameters or values (eg, in a physical environment) and communicate the measured parameters to processor 7004 . The output received by the user may be affected by the measured parameters. For example, the processor 7004 is configured to alter the computer-generated image output by the display based on the measurements.

In some forms, the sensors 7002 can include: an orientation sensor that can sense the orientation of the user's body; at least one camera that can be positioned to view the user's physical environment (eg, to determine orientation); and/or eye sensors that can track the movement of the user's eyes to determine which direction at least one of the user's eyes is looking.

In some forms, the processor 7004 may comprise a computer or smart phone.

In some forms, the control system 7000 is integrated into the display unit 3100 . In other forms, the control system 7000 is housed in a control system support 7060 that is separate from the head mounted display unit 3100 but connected (eg, electrically connected) to the display unit.

Some forms of display device 3000 include a controller 3600 that is engageable by a user to provide user input to the virtual environment and/or to control the operation of display device 3000 . The controller 3600 may be connected to the display unit 3100 and provide the user with the ability to interact with virtual objects output from the display unit 3100 to the user. For example, the controller 3600 has at least one button 3602 (see FIG. 35 ) selectively engageable by a user's finger, the controller 3600 is in communication with the processor 7004 and is configured to send a signal to the processor when the at least one button 3602 is engaged , the processor is configured to alter the computer-generated image output by the display 3104 based on the signal.

FIG. 37 illustrates an exemplary AR display device 3000 according to an aspect of the present technology, including the following functional aspects: a display unit 3100 , a display housing 3200 , and a positioning stabilization structure 3500 .

In some examples, display unit 3100 may include a display screen or display 3104 supported by display housing 3200 . Display screen 3104 is configured to selectively output one or more computer-generated images viewable by a user. The display screen 3104 may include at least one optical lens 3400 of transparent or translucent material configured to allow a user to view their physical environment while viewing the computer-generated image. For example, the display screen 3104 may be glass so that the user can see through the display screen 3104. This can be particularly beneficial in AR applications, so that the user can continue to see the physical environment.

In some forms, the at least one lens 3400 includes a first lens configured to align with the user's left eye in the operating position and a first lens configured to align with the user's right eye in the operating position A collimated second lens, for example, see Figure 37.

In one example, the AR display device 3000 includes a control system 7000 (see FIG. 36 ) that assists in controlling the output received by the user. Specifically, the control system 7000 can control the visual output from the display screen 3104. In some forms, control system 7000 may include sensors 7002 that monitor different parameters or values (eg, in a physical environment) and communicate the measured parameters to processor 7004 . The output received by the user may be affected by the measured parameters. For example, the processor 7004 is configured to alter the computer-generated image output by the display based on the measurements.

Glossary

For the purposes of this technical disclosure, one or more of the following definitions may apply in some forms of the present technology. In other forms of the present technology, alternative definitions may apply.

General Leaks: Word leaks would be considered unintended exposure to light. In one example, leakage may occur due to an incomplete seal between the display unit and the user's face.

Material

Closed Cell Foam: A foam that contains fully encapsulated cells, ie closed cells.

Elastomeric material: polymer made of polyurethane.

Elastomer: A polymer that exhibits elastic properties. For example, silicone elastomers.

Ethylene Vinyl Acetate (EVA): A copolymer of ethylene and vinyl acetate.

Foam: Any material, such as polyurethane foam or viscoelastic foam, in which air cells are introduced during the manufacturing process to create a lightweight honeycomb.

Neoprene: A synthetic rubber produced by the polymerization of chloroprene. Neoprene used in commercial product: Breath-O-Prene.

Nylon: A synthetic polyamide that is elastic and can be used, for example, to form fibers/filaments for textiles.

Open Cell Foam: A foam that contains cells, i.e. air cells that are not fully encapsulated, i.e. open cells.

Polycarbonate: is a typical transparent thermoplastic polymer of bisphenol A carbonate.

Polyethylene: A thermoplastic that is resistant to chemicals and moisture.

Polyurethane (PU): A plastic material prepared by copolymerizing isocyanates and polyols, for example, in the form of foams (polyurethane foams) and rubbers (polyurethane rubbers).

Semi-Open Cell Foam: A foam that contains a combination of closed and open (encapsulated) cells.

Silicone or silicone elastomer: Synthetic rubber. In this specification, references to silicone refer to liquid silicone rubber (LSR) or compression molded silicone rubber (CMSR). One form of commercially available LSR is SILASTIC (included in the range of products sold under this trademark), which is manufactured by Dow Corning. Another manufacturer of LSR is Wacker. Unless specified to the contrary, exemplary forms of LSR have a Shore A (or Type A) indent hardness in the range of about 35 to about 45 as measured using ASTM D2240.

Spacer Fabric: A composite structure consisting of two outer fabric substrates joined together and separated by a monofilament interlayer.

Spandex: An elastic fiber or fabric that mainly contains polyurethane. Spandex is used in commodity: Lycra.

Thermoplastic Elastomer (TPE): Typically a low modulus, flexible material that can be stretched at room temperature with the ability to return to its approximate original length when the stress is released. Trade products that use TPE include: Hytrel®, Dynaflex™, Medalist® MD-1 15.

Thermoplastic Polyurethane (TPU): A thermoplastic elastomer with high durability and flexibility.

Mechanical behavior

Resilience: The ability of a material to absorb energy when elastically deformed and release it when unloaded.

Elasticity: Will release substantially all of the energy when unloaded. These include, for example, certain siloxanes and thermoplastic elastomers.

Hardness: The ability of the material itself to resist deformation (as described, for example, by Young's modulus or the indent hardness scale measured on standardized sample dimensions). "Soft" materials may include silicones or thermoplastic elastomers (TPEs) and can easily deform, eg, under finger pressure. "Hard" materials may include polycarbonate, polypropylene, steel, or aluminum, and may not easily deform, eg, under finger pressure.

Stiffness (or rigidity) of a structure or component: The ability of a structure or component to resist deformation in response to an applied load. Loads can be forces or moments, such as compression, tension, bending or torsion. Structures or components can provide different resistance in different directions.

Soft structure or component: A structure or component that will change shape (eg bend) when allowed to support its own weight for a relatively short period of time such as 1 second.

Rigid structure or component: A structure or component that does not substantially change shape when subjected to the loads normally encountered in use. As an example, the I-beam may include a different bending stiffness (resistance to bending loads) in the first direction than in the second orthogonal direction. In another example, a structure or component may be flexible in a first direction and rigid in a second direction.

user interface

Frame: A frame will be considered to refer to a display housing element that is loaded in tension between two or more points of attachment to the hoop.

Pupil distance: The distance between the centers of the pupils of the eye.

Hoop: A hoop will be taken to mean that part of a structure designed for positioning and stabilization on the head. For example, the cuff may include a collection of one or more struts, ties and stiffeners configured to position and hold the user interface in place on the user's face to The display unit is held in the operating position in front of the user's face. The cuffs may be formed from soft, flexible, resilient materials such as foam and fabric/fabric laminate composites.

Film: Film will be taken to mean a typically thin element that is preferably substantially not resistant to bending, but is resistant to stretching.

Seal: Can refer to the noun form of the structure (seal) or the verb form of the effect (seal). The two elements may be constructed and/or arranged to 'seal' or achieve a 'seal' therebetween without the need for a separate 'seal' element itself.

Shell: Shell will be taken to mean a curved and relatively thin structure with bendable, stretchable and compressible stiffness. For example, the curved structural walls of the mask may be shells. In some forms, the housing may be multi-faceted.

Reinforcement: A reinforcement will be taken to mean a structural component designed to increase the bending resistance of another component in at least one direction.

Support: A support will be considered a structural member designed to increase the compression resistance of another member in at least one direction.

Spindle: (noun) A subcomponent of a component configured to rotate about a common axis, preferably independently, preferably at low torque. In one form, the swivel can be configured to rotate through an angle of at least 360 degrees. In another form, the swivel may be configured to rotate through an angle of less than 360 degrees.

Lace (noun: a structure used to resist tension.

the shape of the structure

Products according to the present technology may include one or more three-dimensional mechanical structures, such as seal formations for display units. Three-dimensional structures can be bound by two-dimensional surfaces. These surfaces can be distinguished using labels to describe the relevant surface orientation, location, function, or some other characteristic. For example, the structure may include one or more of a front surface, a rear surface, an inner surface, and an outer surface. In another example, the seal-forming structure may include a face-contacting (eg, exterior) surface and a separate non-face-contacting (eg, underside or interior) surface. In another example, the structure may include a first surface and a second surface.

To help describe the shape of the three-dimensional structure and surface, first consider a cross-section through a point P on the surface of the structure, see Figures 2a to 2e, which show the cross-section at point P on the surface and an example of the resulting planar curve . The outward normal vector at point P points away from the surface. In some examples, we describe the surface from the point of view of an imaginary figure standing on the surface.

one-dimensional curvature

The curvature of a plane curve at P can be described as having sign (eg, positive, negative) and magnitude (eg, the inverse of the radius of the circle that only touches the curve at P).

Positive Curvature: If the curve at P turns towards the outward normal, the curvature at that point will be taken to be positive (if the imaginary villains leave P, they must go uphill). See Figure 2a (relatively large positive curvature compared to Figure 2b) and Figure 2b (relatively small positive curvature compared to Figure 2a). Such curves are often referred to as concave shapes.

Zero Curvature: If the curve at P is a straight line, the curvature will be taken to be zero (if the imaginary villain moves away from P, they can walk horizontally without going up or down). See Figure 2c.

Negative Curvature: If the curve at P turns away from the outward normal, the curvature in that direction at that point will be taken to be negative (if the imaginary villains leave the point p, they must go downhill ). See Figure 2d (relatively small negative curvature compared to Figure 2e) and Figure 2e (relatively large negative curvature compared to Figure 2d). Such curves are often called convex.

2D Surface Curvature

The description of a shape at a given point on a two-dimensional surface according to the present technique may include multiple normal cross-sections. Multiple cross-sections can cut a surface in a plane that includes outward normals ("normal planes"), and each cross-section can be taken in a different direction. Each cross section produces a flat curve with corresponding curvature. The different curvatures at this point can have the same sign or different signs. Each curvature at that point has a quantity, eg a relatively small quantity. The planar curves in Figures 2a to 2e may be examples of such multiple cross-sections at specific points.

Principal Curvature and Principal Direction: The direction of the normal plane where the curvature of the curve takes its maximum and minimum values is called the principal direction. In the example of Figures 2a to 2e, the maximum curvature occurs in Figure 2a and the minimum curvature occurs in Figure 2e, so Figures 2a and 2e are sections in the main direction. The principal curvature at P is the curvature in the principal direction.

Area of a surface: A connected set of points on a surface. The set of points in the region may have similar characteristics, such as curvature or sign.

Saddle region: A region in which the principal curvatures have opposite signs at each point, ie one sign is positive and the other is negative (depending on the direction an imagined individual turns, they can walk up or down). The saddle region is shown, for example, in Fig. 2h.

Dome area: An area where the principal curvature has the same sign at each point, such as two positives ("concave domes") or two negatives ("convex domes"). For example, the domed area is shown in Figure 2g.

Surface edge: The boundary or limit of a surface or area. For example, an edge on a surface is shown in Figure 2g.

Path: In some forms of the present technology, 'path' will be taken to mean a path in a mathematical-topological sense, eg, a continuous space curve from f(0) to f(1) on a surface. In some forms of the present technology, a 'path' may be described as a route or journey, including, for example, a set of points on a surface. (The imaginary person's path is where they walk on the surface and is similar to a garden path). For example, the path on the surface is shown in Figure 2g.

space curve

Space curves: Unlike planar curves, space curves do not have to lie in any particular plane. A space curve can be thought of as a one-dimensional segment of three-dimensional space. An imaginary person walking on one strand of the DNA helix walks along the curve of space. A typical human left ear includes a helix, which is a left-handed helix, see Figure 2i. A typical human right ear includes a helix, which is a right-handed helix, see Figure 2k. Figure 2j shows a right-handed helix. The edges of structures, such as those of membranes, can follow spatial curves. In general, a space curve can be described by the curvature and twist at each point on the space curve. Torque is a measure of how a curve turns out of a flat surface. Torque has sign and magnitude. The twist at a point on a space curve can be characterized with reference to the tangent, normal, and binormal vectors at that point.

Double normal unit vector: The double normal unit vector is perpendicular to both the tangent vector and the principal normal vector. Its orientation can be determined by the right-hand rule (see eg Fig. 2m) or alternatively by the left-hand rule (Fig. 2l).

Intimate plane: The plane containing the unit tangent vector and the unit principal normal vector. See Figures 2l and 2m.

Twist of a space curve: The twist at a point of a space curve is the magnitude of the rate of change of the binormal unit vector at that point. It measures how far the curve deviates from the close plane. A space curve that lies in a plane has zero twist. A spatial curve that deviates by a relatively small amount from the intimacy plane will have a relatively small amount of twist (eg, a gently sloping helical path). A spatial curve that deviates by a relatively large amount from the intimacy plane will have a relatively large amount of twist (eg, a sharply inclined helical path). Referring to Figure 2j, since T2>Tl, the amount of twist near the top coil of the spiral of Figure 2j is greater than that of the bottom coil of the spiral of Figure 2j.

Referring to the right-hand rule of Fig. 2m, a spatial curve towards the right-hand binormal direction can be considered to have a right-handed positive twist (eg, the right-handed helix shown in Fig. 2j). A spatial curve that turns away from the right-hand binormal direction can be considered to have a right-hand negative twist (eg, a left-hand helix).

Likewise, with reference to the left-hand rule (see Figure 2l), a spatial curve towards the left-hand dual normal direction can be considered to have a left-handed positive twist (eg, a left-handed helix). So a positive left hand is equivalent to a negative right hand.

hole

The surface may have one-dimensional holes, such as holes bounded by planar curves or by spatial curves. Thin structures (eg, membranes) with pores can be described as having one-dimensional pores. See, for example, a one-dimensional hole in a surface bounded by a planar curve of the structure shown in Figure 2n.

The structure may have two-dimensional pores, eg, pores defined by a surface. For example, pneumatic tires have two-dimensional holes defined by the inner surface of the tire. See the two-dimensional pores bounded by the surfaces shown in the structures shown in Figures 2o and 2p.

Other remarks

Unless the context clearly dictates otherwise and a numerical range is provided, it is to be understood that every intervening value between the upper and lower limit of the range, to one tenth of the unit of the lower limit, and any other value within the stated range Recited or intermediate values are broadly encompassed within the present technology. The upper and lower limits of these intervening ranges may independently be included in the intervening ranges and are also encompassed within the technical scope, subject to any specifically excluded limit in the stated range. Where the range includes one or both of the limits, ranges excluding either or both of those included limits are also included in the art.

Furthermore, where a value or values recited herein are implemented as part of the present technology, it is understood that such values may be approximate unless otherwise indicated, and that such values may be practical The technical implementation may allow or require it for any suitable significant number of digits.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although any methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the present technology, a limited number of exemplary methods and materials are described herein.

When a particular material is identified for use in constructing a part, obvious alternative materials with similar properties can be used as substitutes. Furthermore, unless stated to the contrary, any and all components described herein are understood to be capable of being manufactured and thus may be manufactured together or separately.

It must be noted that, as used herein and in the appended claims, the singular forms "a," "an," and "the" include their plural equivalents unless the context clearly dictates otherwise.

All publications mentioned herein are incorporated by reference in their entirety to disclose and describe the methods and/or materials that are the subject of those publications. The publications discussed herein are provided solely for their disclosure prior to the filing date of the present application. Nothing herein should be construed as an admission that the technology is not entitled to antedate such disclosure by virtue of prior invention. In addition, the publication date provided may differ from the actual publication date, which may require independent confirmation.

The terms "comprises" and "comprising" should be understood as: referring to elements, parts or steps in a non-exclusive manner, indicating the identified elements, parts or steps that may be present or utilized, Or in combination with other elements, components or steps not marked.

The subject headings used in the detailed description are for the convenience of the reader only and should not be used to limit the subject matter that may be found throughout the present disclosure or the claims. Subject headings should not be used to explain the scope of the request item or request item restrictions.

Although the techniques herein have been described with reference to specific examples/forms/embodiments, it is to be understood that these examples/forms/embodiments are merely illustrative of the principles and applications of the techniques. In some cases, terms and symbols may imply specific details that are not required to practice the technique. For example, although the terms "first" and "second" may be used, they are not intended to denote any order unless otherwise indicated, but rather may be used to distinguish between different elements. Additionally, although process steps in a method may be described or illustrated in an order, such order is not required. Those skilled in the art will recognize that such an order may be modified and/or aspects thereof may be performed concurrently or even synchronously.

Accordingly, it should be understood that many modifications may be made to the illustrative examples/forms/embodiments, and other arrangements may be devised, without departing from the spirit and scope of the present technology.

10: Head mounted display system 11: User Interface Structure 12: Display unit 14: Positioning and Stabilizing Structures 15: Outer layer 16: Rear support hoop 17: inner layer 18: Temporal connector 20: Rear edge area 21: Upper edge area 22: Display unit housing 24: Forehead Support Connector 25: Forehead Support 26: Temporal Arm 27: Forehead Contact 28: Front end 29: Forehead Contact Surface 30: Backend 32: Rigid parts 34: elastic parts 35: Facial Contact Surfaces 36: Tabs 38: Parietal bone 40: Occipital part 42: Connecting straps 44: Eyelets 48: Forehead Support Strap 50: Adjustment mechanism 52: Forehead support hole 54: Piece Section 110: Head Mounted Display Unit System 112: Display unit 114: Positioning and Stabilizing Structures 116: Rear support hoop 118: Temporal connector 120: Rear edge area 121: Upper edge area 122: Display unit housing 124: Forehead Support Connector 126: Temporal Arm 138: Parietal bone 140: Occipital part 142: Connecting straps 148: Forehead Support Strap 150: Adjustment mechanism 152: Forehead support hole 154: Piece Section 156: Forehead Support Rigid Parts 210: Head Mounted Display Systems 212: Display unit 214: Positioning and Stabilizing Structures 216: Rear support hoop 218: Temporal Connector 220: Rear edge area 222: Display unit housing 238: Parietal bone 240: Occipital part 242: Connecting straps 310: Head Mounted Display Systems 312: Display unit 314: Positioning and Stabilizing Structures 316: Rear Support Hoop 318: Temporal Connector 322: Display unit housing 324: Forehead Support Connector 326: Temporal Arm 332: Rigid parts 338: Parietal bone 340: Occipital part 348: Forehead Support Strap 358: Extended Rigid Parts 360: Offset Extended Rigid 362: Intermediate adjustment mechanism 363: Hole 364: Temporal Adjustment Mechanism 368: Backend 410: Head Mounted Display Systems 411: Interface Structure 413: Facial Interface 414: Positioning and Stabilizing Structures 422: Display unit housing 510: Head Mounted Display Systems 512: Display unit 514: Positioning and Stabilizing Structures 516: Support Hoop 518: Connector 520: Rear edge area 522: Display unit housing 524: Forehead Support Connector 526: Arm 528: Front End 530: Backend 538: Front part 539: Plane 540: Occipital part 541: Pivot Point 542: Connecting straps 543: Slot 545: Displacement 549: Flat 556: Forehead Support Rigid Parts 562: Adjustment mechanism 563: Hole 564: Connector 566: Guide 568: Backend 603: Sphenoid bone 607: Zygomatic arch 610: Head Mounted Display Systems 611: Interface Structure 612: Display unit 613: Facial engaging surfaces 614: Positioning and Stabilizing Structures 615: Interface Support Structure 617: Ridge 621: Chassis 622: Display unit housing 623: Engagement element 631: nose piece 638: Front part 640: Occipital part 662: Central Support Structure 711: Interface Structure 713: Facial Engagement Surface 715: Support Structure 721: Chassis 722: Display unit housing 723: Engagement element 725: Support flange 731: nose piece 811: Interface Structure 813: Facial engaging surfaces 815: Support Structure 821: Chassis 827: Upper 831: nose piece 910: Head Mounted Display Systems 911: Interface Structure 920: Chassis 922: Display unit housing 923: Eyepiece 931: nose piece 1013: Facial Engagement Surfaces 1021: Chassis 1031: nose piece 1033: Disc 711' : Interface Structure 713' : Face engaging surface 715' : Support Structure 813' : Face engaging surface 829' : Foam padding 913' : Face engaging surface 711'': Interface structure 713'': Facial engaging surface 715'': Support structure 813'': Facial engaging surface 829'': Foam padding 913'': Facial engaging surface 1108: Joint Structure 1110: Interface Structure 1112: Curved profile edges 1114: Positioning and Stabilizing Structures 1116: Parts 1120: User head 1122: User head 1134: Positioning and Stabilizing Structures 1140: Facial Projection 1142: Interface Structure 1144: Area 3000: Display device 3100: Display unit 3104: Display screen 3200: Display housing 3400: Optical Lens 3500: Positioning and Stabilizing Structures 3600: Controller 3602: Button 7000: Control System 7002: Sensor 7004: Processor

The present technology is illustrated by way of example and not limitation in the various figures of the accompanying drawings, in which like reference numerals refer to like elements, including: Facial Anatomy Figure 1a is a front view of a face with several surface anatomical features identified, including medial canthus, brow and parietal muscles, upper lip, upper vermilion, alar, nasolabial fold, and corners of the mouth. Also shown are the left and right sides of the sagittal plane and the superior, inferior, radially inward and radially outward directions. Figure 1b is a side view of the head with several features of the identified surface anatomy including temporomandibular joint, glabella, nasal bridge point, nasal bridge, zygomatic arch/bone, supraauricular attachment point, external occipital carina, subauricular attachment point, nasal process point, subseptal point, alar ridge point and temporalis muscle. The up and down and front and rear directions are also indicated. Figure 1c is another side view of the head. The approximate location of the Frankfurt level is indicated. The coronal plane is also indicated. Figure 1d shows a side view of the skull with the outline of the head surface and several muscles. The following bones are shown: frontal, sphenoid, nasal, zygomatic, maxillary, mandibular, parietal, temporal and occipital. The following muscles are shown: masseter minor and trapezius. Figure 1e shows an anterolateral view of the nose. The following bones are shown: frontal bone, supraorbital foramen, nose, septal cartilage, lateral cartilage, orbit and infraorbital foramen. the shape of the structure Figure 2a shows a schematic diagram of a cross-section through the structure at point P. The outward normal at point P is indicated. The curvature at this point has a positive sign and a relatively large magnitude when compared to the curvature magnitude shown in Figure 2b. Figure 2b shows a schematic diagram of a cross-section through the structure at one point. Outward normals at points are indicated. The curvature at the point has a positive sign and a relatively small magnitude when compared to the curvature magnitude shown in Figure 2a. Figure 2c shows a schematic representation of a cross-section through the structure at one point. Outward normals at points are indicated. The curvature at the point has zero value. Figure 2d shows a schematic representation of a cross-section through the structure at one point. Outward normals at points are indicated. The curvature at the point has a negative sign and a relatively small magnitude when compared to the curvature magnitude shown in Fig. 2e. Figure 2e shows a schematic diagram of a cross-section through the structure at one point. Outward normals at points are indicated. The curvature at the point has a negative sign and a relatively large magnitude when compared to the curvature magnitude shown in Fig. 2d. Figures 2f, 2g and 2h show the seal-forming structure. The outer surface of the pad is indicated in Figure 2f. The edges of this surface are indicated in Figure 2g. The path on the surface between points A and B is indicated in Figure 2g. The straight-line distance between A and B is indicated in Figure 2g. Two saddle regions and one dome region are indicated in Fig. 2h. Figure 2i shows the left ear, including the left ear helix. Figure 2j shows a right-handed helix. Figure 2k shows the right ear, including the right ear helix. Figure 21 shows the left-hand rule. Figure 2m shows the right hand rule. Figure 2n shows the surface of a structure with one-dimensional pores on the surface. The illustrated planar curve forms the boundary of a one-dimensional hole. Figure 2o shows a section through the structure of Figure 2n. The surfaces shown define two-dimensional pores in the structure of Figure 2n. Figure 2p shows a perspective view of the structure of Figure 2n, including two-dimensional holes and one-dimensional holes. Also shown is the surface defining the two-dimensional hole in the structure of Figure 2n. head mounted display Positioning and Stabilizing Structures 3a to 3c are side, front and top views, respectively, of a positioning and stabilizing structure of a head mounted display system according to a first example of the present technology. 3d is a cross-sectional view of the temporal arm of the head mounted display assembly of FIGS. 3a-3c, according to an example of the present technology. 3e is a cross-sectional view of the temporal arm of the head mounted display assembly of FIGS. 3a-3c according to another example of the present technology. 4a to 4c are side, front, and top views, respectively, of a positioning and stabilizing structure of a head mounted display system according to a second example of the present technology. 5a to 5c are side, front, and top views, respectively, of a positioning and stabilizing structure of a head mounted display system according to a third example of the present technology. 6 is a side view of a positioning and stabilizing structure of a head mounted display system according to a fourth example of the present technology. 7a to 7c are a side view, a front view, and a top view, respectively, of a head mounted display system according to a modification of the fourth example of the present technology. 8 is a top view of a head mounted display element in use according to a variation of a fourth example of the present technology. 9a and 9b are side views, respectively, of a positioning and stabilizing structure of a head mounted display system according to an example of the present technology. 10a-10c are side views of positioning and stabilizing structures of a head mounted display system according to an example of the present technology. 11a-11c are schematic side views of positioning and stabilizing structures of a head mounted display system according to an example of the present technology. 12a and 12b are schematic side views of positioning and stabilizing structures of a head mounted display system according to an example of the present technology. 12c is a schematic side view of a positioning and stabilizing structure of a head mounted display system showing adjustable characteristics according to an example of the present technology. 13a and 13b are schematic side views of a positioning and stabilizing structure including a forehead support arrangement of a head mounted display system according to an example of the present technology. 14a is a schematic side view of a positioning and stabilizing structure according to an example of the present technology. 14b is a schematic side view of a positioning and stabilizing structure having a front portion in an example configuration of a first configuration and a second configuration in accordance with an example of the present technology. 14c is a schematic side view of a positioning and stabilizing structure showing vector positions according to an example of the present technology. 14d is a schematic side view of a positioning and stabilizing structure having display units in example configurations of a first configuration and a second configuration in accordance with an example of the present technology. interface structure 15a is a cutaway front view through axis A-A of an interface structure in use according to an example of the present technology, showing the location of the interface structure on the left hand side and the approximate facial area engaged by the interface structure on the right hand side. Figure 15b is a side view of the interface structure of Figure 15a in use. 16a, 16b, and 16c are side, top, and front views, respectively, of an interface structure in use according to a second example of the present technology. 17a is a side cross-sectional view through axis B-B of FIG. 16c showing a support structure and face engaging surface according to an example of the present technology. 17b is a side cross-sectional view through axis B-B of FIG. 16c showing a support structure and a face engaging surface further including a support flange in accordance with an example of the present technology. 18 is a front plan view of an interface structure in use according to a third example of the present technology. 19 is a partial front top view of an interface structure in use according to a fourth example of the present technology. 20a, 20b, 20c and 20d are perspective views of interface structures in use according to a fifth example of the present technology. 21a is a side cross-sectional view through axis C-C of FIG. 20b showing a face engaging surface including a foam cushion attached directly to an upper portion of a support structure according to an example of the present technology. 21b is a side cross-sectional view through axis C-C of FIG. 20b showing a face engaging surface covering a foam cushion attached directly to an upper portion of a support structure according to an example of the present technology. 22 is a rear view of an interface structure in use in accordance with a sixth example of the present technology, wherein the width W of the interface structure is adjustable. 23a and 23b are cross-sectional views from below of an adjustable interface structure in use at wider lens width XX and narrower lens width YY, respectively, according to examples of the present technology. The lens width is measured from the central axis of the first lens (eg, axis E-E) to the central axis of the second lens (eg, axis D-D). 24 is a rear view of an interface structure in use according to a seventh example of the present technology. Anthropometric data model 25a and 25b are an anthropometric profile model based on size and clustering of head shape variation according to an example of the present technology. 26a and 26b are an anthropometric profile model based on the size of a specified face region, according to an example of the present technology. 27a and 27b are anthropometric profile models based on dimensions of anthropometric landmarks in accordance with an example of the present technology. Material 28 is a cross-sectional view of a positioning and stabilizing structure according to an example of the present technology. 29 is a cross-sectional view of a positioning and stabilizing structure according to another example of the present technology. 30 is a close-up side view of an engagement structure (eg, an interface structure or a positioning and stabilizing structure) in use applying pressure to a user's head, where pressure is the force applied to the surface divided by the force in accordance with an example of the present technology area. 31 is a close-up side view of an engagement structure twist T to improve engagement and thus achieve uniformity (or uniformity of pressure on a user's head when using the engagement structure) in accordance with an example of the present technology )distributed. 32 is a close-up front view of a positioning and stabilizing structure on at least a portion of a user's head (eg, a crown) according to an example of the present technology. 33 is a close-up top view of an elastic portion of a positioning and stabilizing structure in the form of a strap according to an example of the present technology. 34 is a close-up side view of an example engagement structure in accordance with the present technology that, when in use, is partially compliant when engaging a protrusion on a user's head. Examples of VR and AR Head Mounted Displays 35 is a perspective view of a VR head-mounted display device according to an example of the present technology. 36 is a schematic diagram of a controller and control system according to an example of the present technology. 37 is a perspective view of an AR head-mounted display device according to an example of the present technology.

10: Head mounted display system

12: Display unit

14: Positioning and Stabilizing Structures

16: Rear support hoop

18: Temporal connector

20: Rear edge area

21: Upper edge area

22: Display unit housing

24: Forehead Support Connector

26: Temporal Arm

28: Front end

30: Backend

32: Rigid parts

34: elastic parts

36: Tabs

38: Parietal bone

40: Occipital part

42: Connecting straps

44: Eyelets

48: Forehead Support Strap

54: Piece Section

Claims (28)

A head-mounted display system, comprising: a positioning and stabilizing structure configured and arranged to, in use, maintain the display unit in an operative position over a user's face; and an interface structure for the display unit constructed and arranged to be in opposing relation to the face of the user, wherein the interface structure includes a support structure and a flange protruding inwardly from the support structure, wherein the flange includes a substantially continuous face-engaging surface adapted to contact the user's face around the periphery of the user's eyes, wherein the interface structure includes silicone, wherein the interface is configured and arranged such that the force applied to the user's face is distributed around its perimeter, wherein the interface structure includes a first compliance at a first region and a second compliance at a second region, wherein the first compliance is different from the second compliance, and wherein the first compliance the region and the second region are configured to surround the perimeter of the interface structure to allow selective distribution of the force to the face of the user, and wherein in use the flange is adapted to independently respond to forces exerted upon interaction with the user's face. The head-mounted display system of claim 1, wherein the face-engaging surface comprises one or more regions of silicone, or one or more layers of fabric material or foam. The head-mounted display system of claim 2, wherein the one or more regions of the face-engaging surface can be formed with varying thicknesses and/or varying surface finishes, whereby the face-engaging surface is Provides varying compliance along the user's face when pressed against the user's face in use. The head mounted display system of claim 1, wherein the interface structure further comprises a rigid chassis. A head mounted display system as claimed in claim 1, wherein the support structure comprises one or more distinct regions having varying thicknesses and/or stiffening ribs to alter the orientation of the support structure in use Compression resistance. The head mounted display system of claim 4, further comprising the display unit, and wherein the display unit further comprises a housing, and the rigid chassis is removably mountable to the display unit's case. The head-mounted display system of claim 6, wherein the rigid chassis includes one or more engagement elements about its perimeter, the one or more engagement elements configured to be compatible with corresponding elements on the housing Removably fit. The head mounted display system of claim 1, further comprising a support flange projecting inwardly from the support structure, the support flange being substantially concealed below the flange and its face engaging surface. The head-mounted display system of claim 1, wherein the face-engaging surface is adapted to contact the user's face in the following regions: the parietal muscle, the sphenoid, the spanning between the sphenoid and the left or right zygomatic arch The outer cheek area, above the zygomatic arch, spans the inner cheek area from the zygomatic arch toward the alar crest, and on the nasal ridge below the nasal bridge point to enclose a portion of the user's face therebetween. The head-mounted display system of claim 9, wherein the interface structure is configured to withstand higher levels of force in the region of the parietal muscle and the sphenoid bone, and the interface structure is configured to withstand the zygomatic arch, cheek region, and A lower level of force is experienced in the area of the nasal ridge. The head mounted display system of claim 1, wherein the interface structure includes a foam pad. The head-mounted display system of claim 11, wherein the face-engaging surface covers the foam cushion such that the foam cushion is below the face-engaging surface. The head-mounted display system of claim 1, wherein the flange comprises silicone, and the silicone of the flange and its substantially continuous face-engaging surface are configured and arranged to contact the user's facial. The head mounted display system of claim 1, wherein the substantially continuous face engaging surface includes a negative or convex curvature configured and arranged to contact the user's face. The head mounted display system of claim 1, wherein an edge of the flange at least partially defines a viewing opening along its inner circumference, the viewing opening configured to at least partially receive the user's eye. The head mounted display system of claim 1, wherein the flange is in the form of a flap or membrane. The head mounted display system of claim 1, wherein the flange is thinner than the support structure. The head-mounted display system of claim 1, wherein the substantially continuous face-engaging surface is adapted to contact the user's face around a perimeter of the user's eyes, the perimeter of the user's eyes At least the areas along the user's cranial parietal muscle, sphenoid bone and zygomatic arch are included. The head-mounted display system of claim 1, wherein the first region is configured and shaped to contact regions of the user's parietal muscle and sphenoid bone, and the second region is configured and shaped to contact the user's the zygomatic arch region of the user, and the second compliance at the second region is higher than the first compliance at the first region. The head mounted display system of claim 1, wherein the face engaging surface is configured and shaped to provide continuous contact with the user's face around the entire perimeter of the user's eyes. The head mounted display system of claim 1, wherein the support structure and the flange comprise a one-piece, one-piece structure made of silicone. A virtual reality display device, comprising: The head-mounted display system of claim 1, and further comprising the display unit, wherein, The display unit includes: a display configured for selectively outputting a computer-generated image visible to the user in the operating position, a housing supporting the display, The interface structure at least partially forms a viewing opening configured to at least partially receive the user's face in the operative position, and the interface structure is at least partially constructed of an opaque material, so that the opaque material is configured to at least partially block ambient light from reaching the viewing opening in the operative position, and At least one lens coupled to the housing and disposed within the viewing opening and aligned with the display such that in the operating position the user can view the object through the at least one lens the display; and The head-mounted display system, further comprising: a control system having at least one sensor in communication with a processor, wherein the at least one sensor is configured to measure a parameter and communicate measurements to the processor, and wherein the processor is configured to be based on the The measured value changes are output by the computer-generated image of the display. The virtual reality display device of claim 22, wherein: the at least one lens includes a first lens configured to align with the user's left eye in the operating position and a second lens configured to align with the user's right eye in the operating position, And, the first lens and the second lens are Fresnel lenses; and The display includes a binocular display divided into a first section and a second section, the first section aligned with the first lens and the second section aligned with the second lens . The virtual reality display device of claim 22, further comprising a controller having at least one button selectively engageable by a user's finger, the controller in communication with the processor and is configured to send a signal to the processor when the at least one button is engaged, the processor configured to alter a computer-generated image output by the display based on the signal. An augmented reality display device, comprising: The head-mounted display system of claim 1, and further comprising the display unit, wherein, The display unit includes: a display constructed of a transparent or translucent material and configured to selectively output computer-generated images, a housing supporting the display, and wherein in an operating position, the positioning and stabilizing structure is configured to support the display unit, and the display is configured to align with the user's eyes in the operating position such that the user can at least partially pass the display observes the physical environment regardless of the computer-generated image output by the display; and The head-mounted display system, further comprising: a control system having at least one sensor in communication with a processor, wherein the at least one sensor is configured to measure a parameter and communicate measurements to the processor, and wherein the processor is configured to be based on the The measured value changes are output by the computer-generated image of the display. The augmented reality display device of claim 25, wherein the display includes a first lens configured to align with the user's left eye in the operating position and configured to align with the user in the operating position The second lens is aimed at the right eye of the person. A head-mounted display system, comprising: a positioning and stabilizing structure configured and arranged to, in use, maintain the display unit in an operative position over a user's face; and an interface structure for the display unit constructed and arranged to be in opposing relation to the user's face, wherein the interface structure includes a foam pad and a support structure supporting the foam pad, wherein the foam cushion includes a substantially continuous face-engaging surface adapted to contact the user's face around the perimeter of the user's eyes, wherein the support structure includes a side wall and a spring-like ledge projecting inwardly from the side wall, wherein the sidewalls of the support structure and the spring-like ledges comprise silicone, wherein the foam pad is directly attached to the spring-like ledge, and the spring-like ledge is configured and arranged to provide resilient spring-like support for the foam pad in use, wherein the interface is configured and arranged such that the force applied to the user's face is distributed around its perimeter, and wherein the interface structure includes a first compliance at a first region and a second compliance at a second region, wherein the first compliance is different from the second compliance, and wherein the first compliance The region and the second region are configured to surround the perimeter of the interface structure to allow selective distribution of the force to the user's face. The head-mounted display system of claim 27, wherein the substantially continuous face-engaging surface is adapted to contact the user's face around a perimeter of the user's eyes, the perimeter of the user's eyes including at least a region along the user's parietal muscle, sphenoid and zygomatic arch, and wherein the first region is configured and shaped to contact the user's parietal muscle and sphenoid region, and the second region is configured and shaped to contact the zygomatic arch region of the user, and the second compliance at the second region is higher than the first compliance at the first region.

Images