Head-mounted device with impact mitigation

Abstract

The present disclosure relates to a head-mounted device with impact mitigation, and to a device comprising a device housing, a face interface, a support structure, a content display component, and an impact mitigation structure configured to mitigate impacts with external structures.

Description

[0001] This application is a divisional application of patent application No. 202180078821.5, filed on September 23, 2021, entitled "Head-mounted device with impact reduction". Cross-references to related applications

[0002] This application claims the benefit of U.S. Provisional Patent Application No. 63 / 082,645, filed September 24, 2020, the contents of which are incorporated herein by reference in their entirety for all purposes. Technical Field

[0003] This disclosure relates in its entirety to the field of head-mounted devices. Background Technology

[0004] Computer-generated reality (CVR) content can be experienced using handheld or wearable devices. Wearable CVR devices typically include a near-eye display that shows the user the computer-generated content. The near-eye display is usually housed in a housing supported by the user's head (e.g., using a headband). Summary of the Invention

[0005] A first aspect of this disclosure is a head-mounted device configured for wear by a user. The head-mounted device includes: a device housing; a facial interface connected to the device housing; a support structure configured to support the device housing relative to the user such that the facial interface contacts the user's face; a content display component located within the device housing and configured to display content to the user; and an impact mitigation structure configured to mitigate impacts with external structures.

[0006] In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact mitigation structure includes a bump stop located within the facial interface to disperse pressure from the impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact mitigation structure includes a spring located within the facial interface and extending between an internal support structure of the facial interface and the device housing to absorb energy during the impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact mitigation structure includes an air-filled damper located within the facial interface and extending between an internal support structure of the facial interface and the device housing to absorb energy during the impact.

[0007] In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact-mitigating structure includes a non-Newtonian foam structure located within the facial interface to absorb energy during the impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact-mitigating structure includes an inflatable airbag located within the facial interface to absorb energy during the impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact-mitigating structure includes a deployable support member that deploys during the impact to move the device housing away from the internal support structure of the facial interface.

[0008] In some specific embodiments of the head-mounted device according to the first aspect of this disclosure, the content display component includes an optical module, and the impact mitigation structure includes an energy-absorbing material located on a portion of the device housing surrounding an exposed portion of the optical module to absorb energy during an impact. In some specific embodiments of the head-mounted device according to the first aspect of this disclosure, the content display component includes an optical module, and the impact mitigation structure includes a flexible portion of the device housing connected to the optical module and allowing the optical module to move relative to a surrounding portion of the device housing to absorb energy during an impact.

[0009] In some embodiments of the head-mounted device according to the first aspect of this disclosure, the content display component includes an optical module, and the impact mitigation structure includes an energy-absorbing mounting structure that supports the optical module relative to the device housing to absorb energy during the impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the content display component includes an optical module, and the impact mitigation structure includes a detachable mounting structure that connects the optical module to the device housing, and the detachable mounting structure breaks during the impact to allow the optical module to move relative to the device housing. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact mitigation structure includes a flexible edge located within the facial interface, being more rigid than the facial interface, and connected to the device housing to absorb energy during the impact.

[0010] In some embodiments of the head-mounted device according to the first aspect of this disclosure, the content display component includes an optical module, and the impact mitigation structure includes a flexible edge extending around an exposed portion of the optical module to absorb energy during the impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact mitigation structure includes a damper located in the support structure to adjust movement of the device housing relative to the user's face during the impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact mitigation structure includes an elastic energy-absorbing member located in the facial interface and configured to absorb energy during the impact.

[0011] In some embodiments of the head-mounted device according to the first aspect of this disclosure, the content display component includes an optical module, and the impact mitigation structure includes an energy-absorbing ring connected to an exposed portion of the optical module. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact mitigation structure includes a mounting structure that connects the facial interface to the device housing and causes the facial interface to detach from the device housing during an impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the impact mitigation structure includes a mounting structure that connects the facial interface to the device housing and allows the facial interface to slide laterally relative to the device housing during an impact.

[0012] In some embodiments of the head-mounted device according to the first aspect of this disclosure, the content display component includes an optical module, and the impact mitigation structure includes a mounting structure that connects the optical module to the device housing, such that the optical module is configured to pivot about a generally vertical axis relative to the device housing during the impact. In some embodiments of the head-mounted device according to the first aspect of this disclosure, the content display component includes an optical module, and the impact mitigation structure includes a mounting structure that connects the optical module to the device housing, such that the optical module slides outward relative to the user during the impact.

[0013] A second aspect of this disclosure is a head-mounted device configured for wear by a user. The head-mounted device includes: a device housing defining an eye chamber; control electronics configured to generate computer-generated reality content; and an optical module partially located within the eye chamber and configured to display the computer-generated reality content to the user as part of a computer-generated reality experience. The head-mounted device further includes: a support structure configured to support the device housing relative to the user; a facial interface positioned adjacent to the eye chamber and configured to contact the user's face, including a cover and defining an internal space within the cover; and an energy-absorbing structure located within the internal space of the facial interface. The energy-absorbing structure is configured to control movement of the device housing during a dynamic loading event.

[0014] In some embodiments of the head-mounted device according to the second aspect of this disclosure, the facial interface includes an internal support structure located within the cover to define the shape of the facial interface. In some embodiments of the head-mounted device according to the second aspect of this disclosure, the energy-absorbing structure is connected to the device housing and extends into the internal space of the facial interface to limit movement of the internal support structure of the facial interface relative to the device housing through engagement between the energy-absorbing structure and the internal support structure of the facial interface. In some embodiments of the head-mounted device according to the second aspect of this disclosure, the energy-absorbing structure includes a bump stop. In some embodiments of the head-mounted device according to the second aspect of this disclosure, the energy-absorbing structure includes a spring. In some embodiments of the head-mounted device according to the second aspect of this disclosure, the energy-absorbing structure includes an elastically compressible energy-absorbing material. In some embodiments of the head-mounted device according to the second aspect of this disclosure, the energy-absorbing structure includes an inflatable airbag located in the internal space of the facial interface and inflated in response to the dynamic loading event.

[0015] A third aspect of this disclosure is a head-mounted device configured for wear by a user. The head-mounted device includes: a device housing defining an eye chamber; control electronics configured to generate computer-generated reality content; and an optical module partially located within the eye chamber and configured to display the computer-generated reality content to the user as part of a computer-generated reality experience. The head-mounted device further includes: a support structure configured to support the device housing relative to the user; a facial interface configured to contact the user's face; and an energy-absorbing structure. The energy-absorbing structure is located within the eye chamber of the device housing and configured to control movement of the device housing during dynamic loading events.

[0016] In some embodiments of the head-mounted device according to the third aspect of this disclosure, the energy-absorbing structure includes an energy-absorbing material located adjacent to the optical module on the posterior wall of the eye chamber. In some embodiments of the head-mounted device according to the third aspect of this disclosure, the energy-absorbing structure includes an inflatable airbag located adjacent to the optical module within the eye chamber and inflating in response to the dynamic loading event. In some embodiments of the head-mounted device according to the third aspect of this disclosure, the energy-absorbing structure includes energy-absorbing rings, each connected to one of the optical modules.

[0017] A fourth aspect of this disclosure is a head-mounted device configured for wear by a user. The head-mounted device includes: a device housing defining an eye chamber; control electronics configured to generate computer-generated reality content; and an optical module partially located within the eye chamber and configured to display the computer-generated reality content to the user as part of a computer-generated reality experience. The head-mounted device further includes: a support structure configured to support the device housing relative to the user; a facial interface configured to contact the user's face; and a shock-mitigating structure allowing the optical module to move relative to the device housing during dynamic loading events.

[0018] In some embodiments of the head-mounted device according to the fourth aspect of this disclosure, the impact mitigation structure is a crushable energy-absorbing mounting structure that supports the optical module relative to the device housing. In some embodiments of the head-mounted device according to the fourth aspect of this disclosure, the impact mitigation structure is a detachable mounting structure that connects the optical module to the device housing. In some embodiments of the head-mounted device according to the fourth aspect of this disclosure, the impact mitigation structure is a mounting structure that connects the optical module to the device housing, such that the optical module is pivotable relative to the device housing about a generally vertical axis during the dynamic loading event. In some embodiments of the head-mounted device according to the fourth aspect of this disclosure, the impact mitigation structure is a mounting structure that connects the optical module to the device housing, such that the optical module is slidable outward relative to the user during the dynamic loading event. Attached Figure Description

[0019] Figure 1 It is a top view illustration of a head-mounted device according to the first specific embodiment.

[0020] Figure 2 It is shown Figure 1 A block diagram of the content display components of a head-mounted device.

[0021] Figure 3 This is a top view illustration of a head-mounted device according to a second specific embodiment.

[0022] Figure 4 It is along Figure 3 The line AA is intercepted Figure 3 Rear view illustration of the head-mounted device.

[0023] Figure 5 It is along Figure 4 The line BB cut Figure 3 A cross-sectional view of the head-mounted device.

[0024] Figure 6 It is along Figure 4 The line BB cut Figure 3 Detailed cross-sectional view of the facial interface of the head-mounted device.

[0025] Figure 7 It is along Figure 6 Detailed illustration of the top cross-section of the face interface captured by the CC line.

[0026] Figure 8 This is a top cross-sectional view of the impact mitigation structure based on the first example.

[0027] Figure 9 This is a top cross-sectional view of the impact mitigation structure based on the second example.

[0028] Figure 10 This is a top cross-sectional view of the impact mitigation structure based on the third example.

[0029] Figure 11 This is a top cross-sectional view of the impact mitigation structure based on the fourth example.

[0030] Figure 12 This is a top cross-sectional view of the impact mitigation structure based on the fifth example.

[0031] Figure 13 This is a top cross-sectional view of the impact mitigation structure based on the sixth example.

[0032] Figure 14 This is a top cross-sectional view of the impact mitigation structure according to the seventh example, where the airbag is in the deflated position.

[0033] Figure 15 yes Figure 14 The top cross-section of the impact-reducing structure is shown, with the airbag in the inflated position.

[0034] Figure 16 This is a top cross-sectional view of the impact mitigation structure according to Example 8, in its pre-deployed position.

[0035] Figure 17 It is in the unfolded position. Figure 16 The top cross-section of the impact-reducing structure is shown in the diagram.

[0036] Figure 18 This is a top cross-sectional view of the impact mitigation structure based on Example 9.

[0037] Figure 19 yes Figure 18 A side cross-section diagram of the impact mitigation structure.

[0038] Figure 20 This is a side cross-sectional view of the impact mitigation structure based on Example 10.

[0039] Figure 21 This is a side cross-sectional view of the impact mitigation structure according to Example 11, in which the airbag is in the deflated position.

[0040] Figure 22 yes Figure 22 The top cross-section of the impact-reducing structure is shown, with the airbag in the inflated position.

[0041] Figure 23 This is a side cross-sectional view of the impact mitigation structure based on Example Twelve.

[0042] Figure 24 This is a side cross-sectional view of the impact mitigation structure based on Example 13.

[0043] Figure 25 This is a side cross-sectional view of the impact mitigation structure according to Example Fourteen, in the pre-impact position.

[0044] Figure 26 It is based on the position after the impact. Figure 25 A side cross-section diagram of the impact mitigation structure.

[0045] Figure 27 This is a side cross-sectional view of the impact mitigation structure according to Example Fifteen, in the pre-impact position.

[0046] Figure 28 It is based on the position after the impact. Figure 27 A side cross-section diagram of the impact mitigation structure.

[0047] Figure 29 This is a top schematic diagram of the impact mitigation structure based on Example Sixteen.

[0048] Figure 30 This is a top schematic diagram of the impact mitigation structure based on Example 17.

[0049] Figure 31This is a top schematic diagram of the impact mitigation structure based on Example 18.

[0050] Figure 32 This is a top schematic diagram of the impact mitigation structure based on Example 19.

[0051] Figure 33 This is a top schematic diagram of the impact mitigation structure based on Example 20.

[0052] Figure 34 This is a top cross-sectional view of the impact mitigation structure according to Example 21, in its pre-deployed position.

[0053] Figure 35 It is in the unfolded position. Figure 34 The top cross-section of the impact-reducing structure is shown in the diagram.

[0054] Figure 36 This is a top cross-sectional view of the impact mitigation structure according to Example 22, in its pre-deployed position.

[0055] Figure 37 It is in the unfolded position. Figure 36 The top cross-section of the impact-reducing structure is shown in the diagram. Detailed Implementation

[0056] This disclosure relates to a head-mounted device for displaying a computer-generated reality (CGR) experience to a user. A CGR experience includes the display of computer-generated content (e.g., virtual reality) independent of the surrounding physical environment, and the display of computer-generated content (e.g., augmented reality) relative to the surrounding physical environment.

[0057] The head-mounted device described herein includes a device housing, an optical module positioned near the user's eyes, and a facial interface that contacts the user's face. The facial interface is primarily formed of a compliant material (e.g., a soft, compressible material) to ensure comfortable wear. Other parts of the head-mounted device may be formed of rigid or semi-rigid materials.

[0058] To reduce the chance of impact with external structures, the computer-generated reality device should be located in a designated area free from walls, objects, travel hazards, and other obstacles that the user may come into contact with during use of the computer-generated reality device. To mitigate the impact of the head-mounted device relative to external structures, the head-mounted device described herein includes impact mitigation structures. As used herein, an impact is contact between the device and an external structure, and it may include applying a force greater than a threshold amount to the device. An impact may also be referred to as a dynamic loading event.

[0059] Figure 1This is a side view schematic diagram of a head-mounted device 100. The head-mounted device 100 is worn by a user to allow the user to experience CGR content displayed by the head-mounted device 100. The head-mounted device 100 may also be referred to as, for example, an electronic device, a wearable device, a wearable electronic device, or a wearable CGR device.

[0060] To allow the wearable head-mounted device 100, the head-mounted device 100 includes a structure capable of fixing the head-mounted device 100 relative to the user's head and supporting the head-mounted device 100 in a consistent position in a manner comfortable for the user. To output CGR content to the user, the head-mounted device 100 includes electronic and optical components as described further herein. To allow the user to interact naturally with the CGR environment, the head-mounted device 100 may include components configured to track the movements of parts of the user's body, such as the user's head and hands. The motion tracking information obtained by the components of the head-mounted device 100 can be used as input to control aspects of content generation and display to the user, thereby facilitating the viewing of CGR content and interaction with features present in the CGR environment.

[0061] In the illustrated embodiment, the head-mounted device 100 includes a device housing 102, a facial interface 104, and a support structure 106 that supports the device housing 102 relative to the user so that the facial interface 104 contacts the user's face 108. The head-mounted device 100 also includes a content display component 110 configured to display CGR content to the user. The head-mounted device 100 further includes an impact mitigation structure 140 configured to reduce impacts on the head-mounted device 100 relative to external structures.

[0062] The device housing 102 is a rigid or semi-rigid structure configured to support other components included in the head-mounted device 100, such as by means of structures that allow other components to be attached or by defining an internal space for accommodating other components. The size and shape of the device housing 102 are set to be adjacent to the user's face 108 and positioned close to the user's eyes. In the illustrated embodiment, the facial interface 104 and support structure 106 are connected to the device housing 102, the content display component 110 is at least partially located within the internal space defined by the device housing 102, and the impact mitigation structure 140 is connected to or located within the device housing 102.

[0063] The face interface 104 is a compliant structure attached to the device housing 102. The face interface 104 is configured to contact the user's face 108 in a manner that makes the head-mounted device 100 comfortable to wear. The face interface 104 may be partially or entirely formed of a compliant material such as foam, silicone rubber, and fabric. The face interface 104 may have a hollow interior. A rigid or semi-rigid support structure may be located within the face interface 104. An impact-reducing structure 140 (or a portion thereof) may be located within the face interface 104.

[0064] The support structure 106 is connected to the device housing 102 and is used to secure the device housing 102 in place relative to the user's head, such that the device housing 102 is restricted from movement relative to the user's face 108 and maintains a comfortable position during use. The support structure 106 may include a single component or an assembly of related and / or interconnected components. The support structure 106 may be implemented according to known designs for supporting head-mounted devices, such as headband-type support structures, halo-type support structures, Mohawk-type support structures, or spectacle-type support structures (e.g., including arms that engage the sides of the user's head). In some embodiments, the support structure 106 is rigid. In some embodiments, the support structure 106 is flexible. In some embodiments, the support structure 106 includes one or more rigid portions and one or more flexible portions.

[0065] The content display component 110 is located in the device housing 102 of the head-mounted device 100 and includes electronic and optical components that work together to display CGR content to the user.

[0066] Figure 2 This is a block diagram illustrating an example of a content display unit 110. In the illustrated embodiment, the content display unit 110 includes control electronics 211 and an optical module 218. The control electronics include a processor 212, a memory 213, a storage device 214, a communication device 215, a sensor 216, and a power supply 217. The optical modules 218 (e.g., two optical modules) each include a display device 219 and an optical system 220.

[0067] Processor 212 is a device operable to execute computer program instructions and to perform operations described by those computer program instructions. Processor 212 may be implemented using one or more conventional devices and / or one or more special-purpose devices. As an example, processor 212 may be implemented using one or more central processing units, one or more graphics processing units, one or more application-specific integrated circuits (ASICs), and / or one or more field-programmable gate arrays (FPGAs). Processor 212 may be configured with computer-executable instructions that cause processor 212 to perform specific functions. Memory 213 may be one or more volatile, high-speed, short-term information storage devices, such as random access memory modules.

[0068] Storage device 214 is designed to allow for long-term storage of computer program instructions and other data. Examples of suitable devices for use as storage device 214 include various types of non-volatile information storage devices, such as flash memory modules, hard disk drives, or solid-state drives.

[0069] Communication device 215 supports wired or wireless communication with other devices. Any suitable wired or wireless communication protocol can be used.

[0070] Sensor 216 is a component incorporated into the head-mounted device to generate sensor output signals, which are used as input by processor 212 to generate CGR content and control tension, as will be described herein. Sensor 216 includes components that facilitate motion tracking (e.g., head tracking and optionally handheld controller tracking in six degrees of freedom). Sensor 216 may also include additional sensors used by the device to generate and / or enhance the user experience in any way. Sensor 216 may include conventional components such as cameras, infrared cameras, infrared emitters, depth cameras, structured light sensing devices, accelerometers, gyroscopes, and magnetometers. Sensor 216 may also include biometric sensors operable for the physical or physiological characteristics of a person, such as for user identification and authorization. Biometric sensors may include fingerprint scanners, retinal scanners, and facial scanners (e.g., two-dimensional and three-dimensional scanning components operable to obtain images and / or three-dimensional surface representations). Other types of devices may be incorporated into sensor 216. The information generated by sensor 216 is provided as input to other components of the head-mounted device, such as processor 212.

[0071] Power source 217 provides power to components of the head-mounted device. In some embodiments, power source 217 is wired to power. In some embodiments, power source 217 may include any suitable type of battery, such as a rechargeable battery. In embodiments that include a battery, the head-mounted device may include components that facilitate wired or wireless recharging.

[0072] Optical module 218 is a component that emits light in response to a signal received from processor 212 to output content for display to a user and, for example, guides the emitted light to the user's eyes according to the principle of stereoscopic vision to present a CGR experience to the user. Each of optical modules 218 includes display device 219 and optical system 220. Optical module 218 may include other components such as housing, camera, other sensors, heat sink, cooling fan, etc. As described herein, content display unit 110 includes two optical modules (e.g., a left optical module and a right optical module corresponding to the user's left and right eyes), but content display unit 110 may alternatively include a single optical module displaying content to one of the user's eyes or a single optical module displaying content to both of the user's eyes.

[0073] Display device 219 is connected to a device housing and is used to display content to a user in the form of emitted light, which is output by display device 219 and guided towards the user's eyes by optical system 220. Display device 219 is a light-emitting display device, such as any suitable type of video display, capable of outputting an image in response to a signal received from processor 212. Display device 219 may be of a type that selectively illuminates individual display elements (e.g., pixels) according to color and intensity corresponding to pixel values ​​from an image. As an example, the display device may be implemented using a liquid crystal display (LCD), a light-emitting diode (LED) display, a liquid crystal on silicon (LCoS) display, an organic light-emitting diode (OLED) display, or any other suitable type of display device. Display device 219 may include multiple individual display devices (e.g., two displays or other display devices arranged side-by-side corresponding to the user's left and right eyes).

[0074] Optical system 220 is associated with and optically coupled to display device 219. The optical system is connected to the device housing such that portions of optical system 220 (e.g., lenses) are positioned near the user's eyes. Optical system 220 guides light emitted from display device 219 toward the user's eyes. In some embodiments, optical system 220 may be configured to isolate the emitted light from ambient light (e.g., as in virtual reality systems), such that the scene perceived by the user is defined only by the emitted light and not by ambient light. In some embodiments, optical system 220 may be configured to combine the emitted light with ambient light, such that the scene perceived by the user is defined by both the emitted light and ambient light. In some embodiments, optical system 220 may combine the emitted light and ambient light to establish a spatial correspondence between the emitted light and ambient light to define the scene perceived by the user (e.g., as in augmented reality systems). Optical system 220 may include lenses, reflectors, polarizers, filters, optical combiners, and / or other optical components.

[0075] In some embodiments of the head-mounted device 100, some of the content display components 110 are included in separate devices that are removable (e.g., by docking) to other parts of the head-mounted device 100. In some embodiments of the head-mounted device 100, some of the content display components 110 are omitted, and the corresponding functions are performed by external devices that communicate with the head-mounted device 100 (e.g., using a wired or wireless connection established using communication device 215).

[0076] In some implementations, control electronics 211 may be configured to perform impact mitigation functions. As an example, using computer program instructions provided to processor 212, processor 212 may obtain a measurement of the distance between a portion of head-mounted device 100 (e.g., an optical module) and the user's face 108 from sensor 216. This distance may be compared to a threshold. If the distance between the portion of head-mounted device 100 and the user's face 108 is less than the threshold, processor 212 may cause a warning to be displayed to the user, indicating that the position and / or fit of head-mounted device 100 needs to be adjusted to ensure safe operation.

[0077] Further reference Figure 1 The impact mitigation structure 140 is configured to mitigate impacts on the head-mounted device 100 relative to an external structure. As an example, the impact mitigation structure 140 may be configured to control pressure exerted on a user by a structure included in the head-mounted device 100. As another example, the impact mitigation structure 140 may include an energy absorber. As yet another example, the impact mitigation structure 140 may include a component that moves a portion of the head-mounted device 100 away from the user during an impact.

[0078] During normal use of the head-mounted device 100, the rigid portions of the head-mounted device 100 generally do not contact the user. For example, the facial interface 104 provides a compliant structure that deforms upon engagement with the user's face 108 to define a comfortable fit for the head-mounted device 100. During an impact, portions of the head-mounted device 100, such as the device housing 102 or portions of the content display component 110 (e.g., lenses and adjacent structures), may move relative to the user and may come into contact with the user due to deformation of the facial interface. The impact mitigation structure 140 is configured to reduce the amount of pressure applied to the user or to prevent specific portions of the head-mounted device 100 from contacting the user.

[0079] In some implementations, the impact mitigation structure 140 is located within the face interface 104 and includes a bump stop within the face interface 104 to disperse pressure from an impact while preventing specific portions of the head-mounted device 100 from contacting the user.

[0080] In some embodiments, the impact mitigation structure 140 is located within the facial interface and includes a spring positioned between the internal support structure of the facial interface 104 and the device housing 102 to regulate the movement of the internal support structure of the facial interface 104 relative to the device housing 102 and to absorb energy. As an example, the impact mitigation structure 140 may include a compression spring extending along a rod. As another example, the impact mitigation structure 140 may include a leaf spring that regulates the movement of the internal support structure relative to the device housing 102. As yet another example, the impact mitigation structure 140 may include a leaf spring that, in conjunction with a compression stop, regulates the movement of the internal support structure relative to the device housing 102. As yet another example, the impact mitigation structure 140 may include an air-filled damper having a small-diameter air outlet port that regulates the movement of the internal support structure of the facial interface 104 toward the device housing 102 to absorb energy.

[0081] In one embodiment, the impact mitigation structure 140 is located within the facial interface and includes a non-Newtonian foam structure configured to absorb energy during an impact. In another embodiment, the impact mitigation structure 140 is located within the facial interface 104 and includes an inflatable bladder-like structure (e.g., an inflatable structure, an airbag) configured to inflate in response to impact detection (e.g., detection of an actual impact or detection of a predicted impact) to absorb energy during an impact.

[0082] In one embodiment, the impact mitigation structure 140 is located within the face interface 104 and includes a deployable support that deploys during an impact by pivoting to a position between the device housing 102 and the internal support structure of the face interface 104 to move the device housing 102 away from the internal support structure of the face interface 104.

[0083] In one embodiment, the impact mitigation structure 140 includes an energy-absorbing material located on a portion of the device housing 102 that surrounds an exposed portion of the optical module 218 (e.g., a lens, housing portion, and / or decorative ring) to absorb energy as the user's face 108 moves toward contact with the exposed portion of the optical module 218 and engages with the energy-absorbing material.

[0084] In one embodiment, the impact mitigation structure 140 includes a wall of the device housing 102 that is inflatable and surrounds the exposed portion of the optical module 218 (e.g., lens, housing portion, and / or decorative ring) and is inflated during an impact to absorb energy and prevent the user's face 108 from contacting the exposed portion of the optical module 218.

[0085] In one embodiment, the impact mitigation structure 140 includes a flexible portion of the device housing 102 that acts as an energy absorber, connected to the optical module 218 and allowing restricted movement of the optical module 218 relative to a surrounding portion of the device housing 102. In this embodiment, if a user touches a portion of the optical module 218, the flexible portion of the device housing 102 absorbs energy.

[0086] In one embodiment, the impact mitigation structure 140 includes an energy-absorbing mounting structure that supports the optical module 218 within the device housing 102 to allow energy absorption during longitudinal movement of the optical module 218 due to an impact (e.g., compression or crushing by the energy-absorbing mounting structure).

[0087] In one embodiment, the shock-mitigation structure 140 includes a detachable mounting structure that supports the optical module 218 within the device housing 102 to allow the optical module 218 to move due to an impact. As an example, the detachable structure may allow pivotal movement of the optical module 218 relative to the device housing 102 of the head-mounted device 100.

[0088] In one embodiment, the impact mitigation structure 140 includes a flexible edge (e.g., rubber or silicone rubber) located within the facial interface 104, being more rigid than the facial interface, and connected to the device housing 102 to absorb energy during an impact. In another embodiment, the impact mitigation structure 140 includes a flexible edge (e.g., rubber or silicone rubber) extending around an exposed portion of the optical module 218 to absorb energy during an impact.

[0089] In one embodiment, the shock-mitigation structure 140 includes a damper located in the support structure 106 to regulate the movement of the device housing 102 relative to the user's face 108 during an impact.

[0090] In one embodiment, the impact mitigation structure 140 includes an elastic energy-absorbing member (e.g., rubber or silicone rubber) that is attached to the device housing 102 and engages with the user's face 108 in the brow bone region above the user's eyes to distribute pressure and absorb energy during an impact.

[0091] In one embodiment, the impact mitigation structure 140 includes an energy-absorbing ring (e.g., a compliant ring, a flexible ring, etc.) attached to an exposed portion of the optical module 218 (e.g., on the front surface of a decorative ring or housing portion of a lens surrounding the optical module 218).

[0092] In one embodiment, the impact mitigation structure 140 includes a structure for attaching the facial interface 104 to the device housing 102 such that the facial interface 104 detaches from or is sheared (e.g., slides laterally) relative to the device housing 102 during an impact to reduce the compressive force applied to the user.

[0093] In one embodiment, the impact mitigation structure 140 includes a structure for mounting the optical module 218 to the device housing 102 such that the optical module 218 pivots relative to the user about a generally vertical axis to avoid or reduce engagement between the user and the optical module 218 during an impact. In another embodiment, the impact mitigation structure 140 includes a four-bar linkage for mounting the optical module 218 to the device housing 102 such that the optical module 218 pivots relative to the user about a generally vertical axis to avoid or reduce engagement between the user and the optical module 218 during an impact. In yet another embodiment, the impact mitigation structure 140 includes a structure for mounting the optical module 218 to the device housing 102 such that the optical module 218 slides outward to avoid or reduce engagement between the user and the optical module 218 during an impact.

[0094] Specific implementations of impact mitigation features that may be included in head-mounted device 100 and used as impact mitigation structure 140 will be further described herein.

[0095] Figure 3 This is a top view illustration of a head-mounted device 300. The head-mounted device 300 includes an impact-mitigation structure 340 located in a facial interface 304. Figure 4 It is along Figure 3 The diagram shows the rear view of the head-mounted device 300, captured by line AA. Figure 5 It is along Figure 4 The diagram shows a cross-section of the head-mounted device 300 taken from line BB.

[0096] Head-mounted device 300 is an example of a specific implementation of head-mounted device 100, and except as indicated herein, the description of head-mounted device 100 applies to head-mounted device 300, and all features described in connection with head-mounted device 100 may be included in head-mounted device 300.

[0097] In the illustrated embodiment, the head-mounted device 300 includes a device housing 302, a facial interface 304, and a support structure 306 that supports the device housing 302 relative to the user so that the facial interface 304 contacts the user's face 308. The head-mounted device 300 also includes a content display component, which in the illustrated embodiment is represented by control electronics 311 and an optical module 318. The control electronics 311 and the optical module 318 can be implemented in the manner described relative to the control electronics 211 and optical module 218 of the content display component 110. The head-mounted device 300 also includes an interpupillary distance adjustment mechanism 322, located within the device housing 302, to move the optical module 318, thereby adjusting the spacing between the optical modules according to the distance between the user's eyes.

[0098] The device housing 302 is a rigid or semi-rigid structure configured to support other components included in the head-mounted device 300. The device housing 302 may have a size and shape that substantially corresponds to the width of an average person's head. The device housing 302 may have a height that substantially corresponds to the distance between the forehead and cheekbone, such that when worn, the device housing extends above and below the average user's eye sockets. In one embodiment, the device housing 302 may be a frame to which other components of the head-mounted device 300 are attached. In some embodiments, the device housing 302 may be a closed structure such that certain components of the head-mounted device 300 are housed within the device housing 302 and thus protected from damage. The device housing 102 may be implemented in a manner described relative to the device housing 302.

[0099] The facial interface 304 is associated with the device housing 302 and configured to contact the user's face 308. The facial interface 304 may be implemented in a manner described relative to the facial interface 104.

[0100] As an example, the facial interface 304 may be attached to the device housing 302, and the facial interface 304 may be formed on the device housing 302 (e.g., as a coating), or the facial interface 304 may be defined by features integrally formed on the device housing 302. The facial interface 304 may be located in an area around the periphery of the device housing 302 that may come into contact with the user's face.

[0101] The facial interface 304 is designed to conform to the user's face to allow the support structure 306 to be tensioned to a degree that restricts movement of the device housing 302 relative to the user's head. The facial interface 304 can also be used to reduce the amount of light reaching the user's eyes from the physical environment surrounding the user. The facial interface 304 may contact areas of the user's face, such as the forehead, temples, and cheeks.

[0102] Figure 6 It is along Figure 4Detailed illustration of the side cross-section of the face interface 304 captured by line BB. Figure 7 It is along Figure 6 A detailed cross-sectional view of the top of the face interface 304, taken by line CC. In the illustrated embodiment, the face interface 304 includes a cover 634 and an internal support structure 636. The cover 634 is formed of a flexible material so that it conforms to the user's face and remains in contact as the user moves during use of the head-mounted device 300. The cover 634 may be formed of a thin layer of material, such as a sheet. As an example, the cover 634 may be formed of fabric, silicone rubber, open-cell foam rubber, or closed-cell foam rubber. The face interface 304 may have a soft outer layer, such as a fabric layer, so that it can be worn comfortably.

[0103] The internal space 635 of the facial interface 304 is located within the cover 634, and the internal support structure 636 is located within the internal space 635 of the facial interface. The internal support structure 636 is an assembly of components that cooperate to define a frame for defining the shape of the facial interface 304 and controlling the deformation of the facial interface 304 to provide a comfortable fit for the user, thereby maintaining contact with the user during active movement of the user during use of the head-mounted device 300. The internal support structure 636 is rigider than the cover 634 but more flexible than the device housing 302.

[0104] In the example shown, the internal support structure 636 includes a support plate 638 and a suspension member 639. The support plate 638 defines a surface within the cover 634 such that a portion of the cover 634 is positioned between the internal support structure 636 and the user's face 308 to position the cover 634 in contact with the face 308 and provide a reaction surface for the face 308 to compress the cover 634. The suspension member 639 extends between the device housing 302 and the support plate 638 to hold the support plate 638 according to a desired position and orientation relative to the device housing 302. The suspension member 639 may be flexible or incorporate flexible elements to allow movement of the support plate 638 relative to the device housing 302. In some embodiments, the suspension member 639 may be omitted, and its function may be performed by the shock-absorbing structure 340.

[0105] Return to Figures 3 to 5The support structure 306 is connected to the device housing 302. The support structure 306 is a component or assembly of components for securing the device housing 302 in place relative to the user's head, such that movement of the device housing 302 relative to the user's face 308 is restricted and it maintains a comfortable position during use. In some embodiments, the support structure 306 is rigid. In some embodiments, the support structure 306 is flexible. In some embodiments, the support structure 306 includes one or more rigid portions and one or more flexible portions. The support structure 306 can be implemented in a manner described relative to support structure 106.

[0106] The control electronics 311 can be implemented according to the description of the control electronics 211 of the content display unit 110, which includes all the sub-components of the control electronics 211. The optical module 318 can be implemented according to the description of the optical module 218 of the content display unit 110, which includes all the sub-components of the optical module 218.

[0107] To provide comfortable contact with the user's face 308 and reduce the amount of ambient light seen by the user during use of the head-mounted device 300, the facial interface 304 extends around the outer periphery of the device housing 302 and thus around the eye chamber 424 when viewed from behind. Therefore, the facial interface 304 is adjacent to the eye chamber 424 and extends outward from the rear of the device housing 302 for contact with the face 308 rearward from the device housing 302 of the head-mounted device 300. The facial interface 304 may be continuous or discontinuous.

[0108] The eye chamber 424 is defined at the rear of the device housing 302 of the head-mounted device 300, and is the portion of the device housing 302 that is placed adjacent to the user's eyes during use of the head-mounted device 300. The facial interface 304 is positioned outward from the eye chamber 424 to reduce the amount of ambient light entering the eye chamber 424.

[0109] The eye chamber 424 is partially defined by a rear wall 426, which in the illustrated embodiment is part of the device housing 302, but may alternatively be a separate structure. The rear wall 426 may be rigid, semi-rigid, or flexible. The rear wall 426 may have a rigid or semi-rigid structure with a flexible covering. The rear wall 426 separates the eye chamber 424 from the interior space 528 of the device housing 302. Components of the head-mounted device 300, such as control electronics 311, may be located within the interior space 528.

[0110] Optical modules 318 are partially located in the internal space 528 but extend through the rear wall 426. Thus, a first portion of each optical module 318 is located in the eye chamber 424, and a second portion of each optical module 318 is located in the internal space 528. As an example, each optical module 318 may include a lens 530 and an optical module housing 532 extending peripherally around the lens 530, wherein the lens 530 and the optical module housing 532 are at least partially located in the eye chamber 424 such that they are the exposed portions of the optical module 318 visible to the user.

[0111] The impact mitigation structure 340 can be implemented in a manner relative to the impact mitigation structure 140. In the illustrated embodiment, the impact mitigation structure 340 is located within the face interface 304 and may be located within an internal space 635 defined within a cover 634 of the face interface 304. Specific embodiments of the impact mitigation structure 340 will be described in the context of the following embodiments.

[0112] Figure 8 This is a top cross-sectional view of a shock-reducing structure 840 that may be located within the interior space 635 of the facial interface 304 of a head-mounted device 300. The shock-reducing structure 840 is a specific implementation of the shock-reducing structure 340 and may be included in the head-mounted device 300 in place of the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 840 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0113] The impact mitigation structure 840 includes a bump stop 842. The bump stop 842 is used to disperse pressure from an impact while limiting contact between specific portions of the head-mounted device 300 and the user. The bump stop 842 can also be used to apply pressure at a predetermined location between the head-mounted device 300 and the user to control the manner in which pressure from an impact is applied to the user. The bump stop 842 can also provide a predetermined gap between the support plate 638 and the device housing 302. This predetermined gap can be configured to prevent contact between the user's face 308 and portions of the head-mounted device 300, such as exposed portions of the optical module 318.

[0114] A bump stop 842 is located within the internal space 635 of the face interface 304 to limit the range of motion of the internal support structure 636 of the face interface 304. The bump stop 842 is a structural component and may be, for example, a cylindrical member. In the illustrated embodiment, the bump stop 842 is attached to the device housing 302 near its periphery and extends toward the support plate 638 of the internal support structure 636 of the face interface 304. Alternatively, the bump stop 842 may be formed on the support plate 638 of the internal support structure 636 of the face interface 304 and extend toward the device housing 302.

[0115] The bump stop 842 can be rigid or flexible. The bump stop 842 can be more rigid than the internal support structure 636. As an example, the support plate 638 of the internal support structure 636 can move relative to the bump stop 842 in response to an impact (e.g., by flexible deformation) until the support plate 638 contacts the bump stop 842 (shown in dashed lines), at which point the bump stop 842 limits (e.g., stops or slows down) further movement of the support plate 638 of the internal support structure 636 toward the device housing 302.

[0116] In some implementations, the impact mitigation structure is located within the face interface 304 and includes a spring located between the internal support structure of the face interface 304 and the device housing 302 to regulate the movement of the internal support structure 636 of the face interface 304 relative to the device housing 302 and absorb energy. (References herein) Figures 9 to 12 An example is described.

[0117] Figure 9 This is a top cross-sectional view of a shock-reducing structure 940 that may be located within the internal space 635 of the facial interface 304 of a head-mounted device 300. The shock-reducing structure 940 is a specific implementation of the shock-reducing structure 340 and may be included in the head-mounted device 300 in place of the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 940 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0118] In the illustrated embodiment, the impact mitigation structure 940 includes a telescopic rod 944 and a spring 945 (e.g., a compression spring). The telescopic rod 944 extends between a support plate 638 and a device housing 302 and is configured to change length by telescoping to allow the support plate 638 to move toward and away from the device housing 302. The spring 945 extends between the support plate 638 and the device housing 302. The compression axis of each spring 945 is oriented along a line extending between the device housing 302 and the support plate 638 (e.g., in the direction of the shortest distance between them). The spring 945 may be mounted on the telescopic rod 944 such that the telescopic rod 944 extends through the spring 945 and the spring 945 extends around the telescopic rod 944. The spring 945 is used to push the support plate 638 away from the device housing 302 and absorb energy during the movement of the support plate 638 toward the device housing 302. This allows the spring 945 to absorb energy during an impact.

[0119] Figure 10 This is a top cross-sectional view of a shock-reducing structure 1040 that may be located within the internal space 635 of the facial interface 304 of a head-mounted device 300. The shock-reducing structure 1040 is a specific implementation of the shock-reducing structure 340 and may be included in the head-mounted device 300 in place of the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 1040 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0120] In the illustrated embodiment, the impact mitigation structure 1040 includes leaf springs 1045 extending between a support plate 638 and the device housing 302 and configured to change length by compression and expansion, allowing the support plate 638 to move toward and away from the device housing 302. The compression axis of each leaf spring 1045 is oriented along a line extending between the device housing 302 and the support plate 638 (e.g., in the direction of the shortest distance between them). The leaf springs 1045 are used to push the support plate 638 away from the device housing 302 and absorb energy during the movement of the support plate 638 toward the device housing 302. This allows the leaf springs 1045 to absorb energy during impact and regulate the movement of the internal support structure 636 of the face interface 304 relative to the device housing 102.

[0121] Figure 11This is a top cross-sectional view of a shock-reducing structure 1140 that may be located within the interior space 635 of the face interface 304 of a head-mounted device 300. The shock-reducing structure 1140 is a specific implementation of the shock-reducing structure 340 and may be included in the head-mounted device 300 in place of the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 1140 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0122] In the illustrated embodiment, the impact mitigation structure 1140 includes a leaf spring 1145 and a stop structure 1146. In the illustrated embodiment, the stop structure 1146 is connected to a support plate 638 of the inner support structure 636 and extends toward the device housing 302 to implement a minimum gap between the support plate 638 and the device housing 302, as explained relative to the protruding stop 842 of the impact mitigation structure 840. The leaf spring 1145 extends between the stop structure 1146 and the device housing 302 and is configured to change length by compression and expansion so that the support plate 638 can move toward and away from the device housing 302. The compression axis of each leaf spring 1145 is oriented along a line extending between the device housing 302 and the corresponding stop structure 1146 (e.g., in the direction of the shortest distance between them). The positions of leaf spring 1145 and stop structure 1146 can be reversed so that stop structure 1146 is connected to device housing 302 and leaf spring 1145 extends between support plate 638 and stop structure 1146.

[0123] Leaf spring 1145 is used to push support plate 638 away from device housing 302 and absorb energy during the movement of support plate 638 toward device housing 302. This allows leaf spring 1145 to absorb energy during impact and regulate the movement of internal support structure 636 of face interface 304 relative to device housing 102. Stop structure 1146 can space the user's face 308 away from parts of head-mounted device 300, such as optical module 318, to prevent contact.

[0124] Figure 12 This is a top cross-sectional view of a shock-reducing structure 1240 that may be located within the interior space 635 of the facial interface 304 of a head-mounted device 300. The shock-reducing structure 1240 is a specific implementation of the shock-reducing structure 340 and may be included in the head-mounted device 300 in place of the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 1240 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0125] In the specific embodiment shown, the impact mitigation structure 1240 includes an air-filled damper 1247 that adjusts the movement of the support plate 638 of the face interface 304 toward the device housing 302 to absorb energy. Each air-filled damper 1247 includes a piston 1248, a cylinder 1249, and an air outlet port 1250.

[0126] In the illustrated embodiment, piston 1248 is connected to support plate 638 of internal support structure 636, and cylinder 1249 is connected to device housing 302, but their positions can be reversed. Piston 1248 extends into cylinder 1249 and can be axially moved into and out of cylinder 1249 in correspondence with movement of support plate 638 relative to device housing 302. The maximum insertion depth of piston 1248 relative to cylinder 1249 establishes a minimum clearance distance between support plate 638 and device housing 302. Spring 1245 (e.g., compression spring) is located within the internal space of cylinder 1249 and applies a spring force to piston 1248 to push piston 1248 out of cylinder 1249 and thus push support plate 638 away from device housing 302.

[0127] The internal space of cylinder 1249 is filled with air and is in fluid communication with the external (e.g., surrounding) environment through air outlet port 1250. The internal space of cylinder 1249 is also sealed. Therefore, the air-filled damper 1247 resists the movement of support plate 638 toward device housing 302 according to the rate at which air inside the air-filled damper 1247 can leave through air outlet port 1250. This allows the air-filled damper 1247 to absorb energy during impact and regulate the movement of support plate 638 relative to device housing 302. Spring 1245 also resists the movement of support plate 638 toward device housing 302. When piston 1248 moves out of cylinder 1249, the movement of support plate 638 away from device housing 302 causes air to enter air outlet port 1250.

[0128] Figure 13 This is a top cross-sectional view of a shock-reducing structure 1340 that may be located within the interior space 635 of the facial interface 304 of a head-mounted device 300. The shock-reducing structure 1340 is a specific implementation of the shock-reducing structure 340 and may be included in the head-mounted device 300 in place of the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 1340 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0129] The impact mitigation structure 1340 includes an energy-absorbing structure 1352 located within the interior space 635 of the face interface 304 to absorb energy. The energy-absorbing structure 1352 may be located between the support plate 638 of the internal support structure 636 and the device housing 302. Alternatively, the internal support structure 636 may be omitted and the energy-absorbing structure 1352 may be located between the cover 634 of the face interface 304 and the device housing 302. The energy-absorbing structure 1352 may fill the interior space 635, or it may exist in a localized area and / or be engaged only after a predetermined deflection of the support plate 638 of the internal support structure 636 toward the device housing 302.

[0130] In one embodiment, the energy-absorbing structure 1352 is an elastic energy-absorbing member (e.g., rubber or silicone rubber) located within the facial interface 304, for example, by being attached to the device housing 102. The elastic energy-absorbing member is formed of a material capable of elastically deforming in response to impact but stiffer and having a higher energy absorption capacity compared to components of the facial interface 304. The energy-absorbing structure 1352 may engage with the user's face 108 (directly or through a portion of the facial interface 304) in the brow bone region above the user's eyes to distribute pressure and absorb energy during an impact.

[0131] In another embodiment, the energy-absorbing structure 1352 is a non-Newtonian foam structure. For example, the energy-absorbing structure 1352 may be a block of non-Newtonian fluid foam located within the face interface 304. The non-Newtonian foam structure comprises a foam cushioning material (e.g., closed-cell polyurethane foam rubber) having a shear-thickening non-Newtonian fluid dispersed throughout the foam's pore structure. The viscosity of the shear-thickening non-Newtonian fluid increases in response to the force applied to the fluid. Therefore, the non-Newtonian foam structure is highly flexible when low levels of force are applied, but becomes non-flexible and rigid when high levels of force are applied. This allows the non-Newtonian foam structure to effectively absorb energy during impact.

[0132] Figure 14 This is a top cross-sectional view of a shock-reducing structure 1440 that can be located within the interior space 635 of the face interface 304 of a head-mounted device 300, including an airbag 1454 (e.g., an inflatable structure or an inflatable airbag) in a deflated position. Figure 15 This is a top cross-sectional view of the impact-reducing structure 1440, with the airbag 1454 in the inflated position. The impact-reducing structure 1440 is a specific implementation of the impact-reducing structure 340 and may be included in the head-mounted device 300 in place of the impact-reducing structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact-reducing structure 1440 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0133] The head-mounted device 300 uses control electronics 211 to identify impact detection. Impact detection is a determination indicating that an impact has occurred or that an impact is predicted to occur (e.g., detection of an actual impact or detection of a predicted impact). Impact detection can be identified using signals output by sensor 216 of the control electronics 211 and processed by processor 212, which determines whether computer program instructions should be used to identify the impact detection. As an example, processor 212 may output an impact detection when a motion characteristic (e.g., acceleration) is greater than a threshold. As another example, processor 212 may output an impact detection when a stationary object is sensed near the head-mounted device 300 and the predicted future position of the head-mounted device 300 corresponds to an impact based on the current trajectory of the head-mounted device 300.

[0134] The airbag 1454 is initially in the deflated position within the face interface 304 (e.g., between the device housing 302 and the support plate 638). Figure 14 In response to an impact detection, the inflation system 1456 is activated to supply gas to the airbag 1454, causing the airbag 1454 to inflate, which is determined by the inflation position ( Figure 15 The inflation system 1456 may include, for example, a compressed air cylinder or a pyrotechnic inflator. In the inflated position, the airbag 1454 inflates to absorb energy and resist compression of the face interface 304. As an example, in the inflated position, the airbag 1454 may maintain a predetermined distance between the support plate 638 and the device housing 302.

[0135] Figure 16 This is a top cross-sectional view of the impact mitigation structure 1640 in its pre-deployed position, which can be located within the internal space 635 of the face interface 304 of the head-mounted device 300. Figure 17 This is a top cross-sectional view of the impact mitigation structure 1640 in its deployed position. The impact mitigation structure 1640 is a specific implementation of the impact mitigation structure 340 and may be included in the head-mounted device 300 in place of the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 1640 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0136] The impact mitigation structure 1640 includes a deployable support 1658. The deployable support is configured to deploy in response to an impact and space the support plate 638 from the device housing 302 to prevent the face 108 from contacting the device housing 302 or associated structures such as the optical module 318. During an impact, the deployable support 1658 deploys by pivoting to a position between the device housing 302 and the internal support structure 636 (e.g., the support plate 638) to move the device housing 102 away from the internal support structure 636 of the face interface 304. This allows the face interface 304 to space the device housing 302 and associated components (e.g., the optical module 318) from the user's face 308.

[0137] In the illustrated embodiment, the deployable support 1658 includes a support member 1659 and an actuator 1660. The support member 1659 is a structural component that extends along the front of the device housing 302 in a pre-deployed position and extends between the device housing 302 and the internal support structure 636 in the deployed position. The actuator 1660 causes the support member 1659 to move from the pre-deployed position to the deployed position in response to impact detection (e.g., from control electronics 211 as previously described relative to the impact mitigation structure 1440). As an example, the actuator 1660 may be a rotary actuator configured to pivot the support member 1659. As an example, the support member 1659 may be spring-biased to the deployed position and the actuator 1660 may be an actuable release mechanism (e.g., a mechanical lever disengaged by actuation of a solenoid).

[0138] Figure 18 This is a top cross-sectional view of the impact mitigation structure 1840, which can be located within the interior space 635 of the face interface 304 of the head-mounted device 300. Figure 19 This is a side cross-sectional view of the impact mitigation structure 1840. The impact mitigation structure 1840 is a specific implementation of the impact mitigation structure 340 and may be included in the head-mounted device 300 instead of the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 1840 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0139] The impact mitigation structure 1840 includes an energy-absorbing member 1862 located within the interior space 635 of the face interface 304 to absorb energy. As an example, the energy-absorbing member 1862 may be formed of rubber, silicone rubber, or plastic.

[0140] Energy-absorbing member 1862 extends outward from device housing 302 along the inner surface of cover 634 of face interface 304 toward a rearward portion of face interface 304 (e.g., toward a location where face interface 304 contacts user's face 308). Energy-absorbing member 1862 may be located between support plate 638 of internal support structure 636 and device housing 302, or a portion of energy-absorbing member 1862 may extend between cover 634 of face interface 304 and internal support structure 636. Alternatively, internal support structure 636 may be omitted.

[0141] A plurality of energy-absorbing members in energy-absorbing member 1862 may be positioned at spaced locations along the interior of facial interface 304, and each energy-absorbing member defines a portion of a flexible edge within facial interface 304. Alternatively, energy-absorbing member 1862 may be a single structure defining a flexible edge within facial interface 304. The flexible edge defined by energy-absorbing member 1862 is stiffer than facial interface 304 (e.g., cover 634 of facial interface 304) and is attached to device housing 302 to absorb energy during impact. The flexible edge defined by energy-absorbing member 1862 may deform outward relative to eye chamber 424 during impact (in... Figure 19 (in the direction of arrow A) and absorbs energy during deformation.

[0142] In the aforementioned specific embodiment, the impact mitigation structure is located in the face interface 304, as described relative to the impact mitigation structure 340. In subsequent specific embodiments, specifically in Figures 20 to 24 In this context, the impact-reducing structure is located in the eye chamber 424 of the head-mounted device 300. The description of the head-mounted device 300 remains applicable, wherein the impact-reducing structure may be used in place of or in combination with the impact-reducing structure located in the face interface 304 as previously described.

[0143] Figure 20 This is a side cross-sectional view of a shock-reducing structure 2040 that may be located within the eye chamber 424 of the device housing 302 of the head-mounted device 300. The shock-reducing structure 2040 may replace or be included in the head-mounted device 300 in addition to the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 2040 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0144] The impact mitigation structure 2040 includes an energy-absorbing material 2064 located on a portion of the device housing 102. The energy-absorbing material 2064 surrounds the exposed portion of each optical module 318 (e.g., lens 530 and / or optical module housing 532). In the illustrated embodiment, the energy-absorbing material 2064 is located within the eye chamber 424 and disposed on the rear wall 426 of the device housing 302, which extends around the exposed portion of the optical module 318 within the eye chamber 424, as previously described.

[0145] At least a portion of the energy-absorbing material 2064 is positioned outward relative to the optical module 318 (e.g., toward the user's face 308) such that the user's face 308 will come into contact with the energy-absorbing material 2064 as the user's face 308 moves toward the optical module 318 during an impact. Therefore, the energy-absorbing material 2064 is configured to absorb energy when the user moves toward contact with an exposed portion of the optical module 318 and engages with the energy-absorbing material 2064.

[0146] Figure 21 This is a side cross-sectional view of a shock-reducing structure 2140 that can be located within the eye chamber 424 of the device housing 302 of the head-mounted device 300 and includes an airbag 2154 (e.g., an inflatable structure or an inflatable airbag) in a deflated position. Figure 22 This is a side cross-sectional view of the impact-reducing structure 2140, showing the airbag 2154 in the inflated position. The impact-reducing structure 2140 may replace or be included in the head-mounted device 300 in addition to the impact-reducing structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact-reducing structure 2140 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0147] The air bladder 2154 is located within the eye chamber 424 and is situated on or integrally formed with the rear wall 426 of the device housing 302. Therefore, the air bladder 2154 extends around the exposed portion of each optical module 318 (e.g., lens 530 and / or optical module housing 532). In the deflated position ( Figure 21 In the inflation position, the exposed portion of the optical module 318 can be closer to the user's face 308 than the airbag 2154. Figure 22 In the device housing 302, the airbag 2154 extends outward relative to the rear wall 426 of the housing 302 and is closer to the user's face 308 than the exposed portion of the optical module 318.

[0148] Airbag 2154 was initially in the deflated position. Figure 21The head-mounted device 300 uses control electronics 211 to identify impact detection, which triggers the inflation system 2156 (which is equivalent to the inflation system 1456), causing the airbag to deflate from its position. Figure 21 Inflate to the inflation position ( Figure 22 ).

[0149] Figure 23 This is a side cross-sectional view of a shock-reducing structure 2340 that may be located within the eye chamber 424 of the device housing 302 of the head-mounted device 300. The shock-reducing structure 2340 may replace or be included in the head-mounted device 300 in addition to the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 2340 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0150] The impact mitigation structure 2340 includes a flexible rear wall 2326 replacing the rear wall 426. The flexible rear wall 2326 is implemented according to the description of the rear wall 426, except that it is formed of a flexible material capable of elastically deforming upon contact, for example, with the user's face 308. For example, when an external structure makes contact, the flexible rear wall 2326 can move to a deflected position, as depicted by the dashed lines. Exposed portions of the optical module 318, such as the lens 530 of the optical module 318 and the optical module housing 532, are mounted to the flexible rear wall 2326 such that they move together with the flexible rear wall 2326 and can cause deflection of the flexible rear wall 2326 if contacted. Thus, the flexible rear wall 2326 is a flexible portion of the device housing 302 that acts as an energy absorber, connected to the optical module 318 and allowing restricted movement of the optical module 318 relative to the surrounding portion of the device housing 302. This allows the flexible rear wall 2326 to serve as a flexible portion of the device housing 302, which absorbs energy if the user's face 308 comes into contact with part of the optical module 318.

[0151] Figure 24 This is a side cross-sectional view of a shock-reducing structure 2440 that may be located within the eye chamber 424 of the device housing 302 of the head-mounted device 300. The shock-reducing structure 2440 may replace or be included in the head-mounted device 300 in addition to the shock-reducing structure 340. The description of the head-mounted device 300 is applicable, and components described in connection with the shock-reducing structure 2440 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0152] The impact mitigation structure 2440 includes an energy-absorbing ring 2466. The energy-absorbing ring 2466 provides a compliant pressure-diffusing surface located in the eye chamber 424 of the head-mounted device 300 to prevent the user's face 308 from contacting components of the head-mounted device 300, such as exposed portions of the optical module 318.

[0153] The energy-absorbing ring 2466 may be formed as an O-ring, for example, having a circular cross-section, a square cross-section, a rectangular cross-section, or a curved cross-section (e.g., radially flared outwards). The energy-absorbing ring 2466 may be in the form of a flexible edge that is attached to and extends outwards from the optical module housing 532 to absorb energy during impact. The energy-absorbing rings 2466 are each formed of a compliant and elastically flexible material and may be referred to as compliant rings or elastically flexible rings. As an example, the energy-absorbing rings 2466 may be formed of an elastomeric material such that they unfold to distribute pressure. The energy-absorbing rings 2466 may incorporate structures that expand upon the application of pressure, such as sheet-like or mesh structures.

[0154] An energy-absorbing ring 2466 is located in an eye chamber 424 connected to the exposed portion of a corresponding optical module 318, and extends outward from the optical module 318 toward the user's face 308. In the illustrated embodiment, the energy-absorbing ring 2466 is located on the front surface of the optical module housing 532 of the optical module 318, such that it extends around the outer periphery of the lens 530 of each optical module 318. Alternatively, the energy-absorbing ring 2466 may extend around the outer periphery of the optical module housing 532.

[0155] In the head-mounted device 300, the impact-reducing structure is located in the facial interface 304, as described relative to the impact-reducing structure 340. In subsequent specific embodiments, specifically in... Figures 25 to 28 In this context, the impact-reducing structure is located within the internal space 528 of the device housing 302 of the head-mounted device 300. The description of the head-mounted device 300 remains applicable, wherein the impact-reducing structure may be used in place of or in combination with the impact-reducing structures located in the face interface 304 and / or eye chamber 424 as previously described.

[0156] Figure 25 This is a side cross-sectional view of an impact mitigation structure 2540 located within the internal space 528 of the device housing 302 of a head-mounted device 300 in a pre-impact position. Figure 26This is a side cross-sectional view of the impact mitigation structure 2540 in its post-impact position. The impact mitigation structure 2540 may replace or be included in the head-mounted device 300 in addition to the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 2540 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0157] The impact mitigation structure 2540 includes an energy-absorbing mounting structure 2568 that supports the optical module 318 within the device housing 102. The energy-absorbing mounting structure 2568 is configured to absorb energy in response to a force applied to the optical module 318 that causes longitudinal movement of the optical module 318 (e.g., due to contact with the user's face 308) to allow energy absorption during longitudinal movement of the optical module 318.

[0158] In the example shown, the energy-absorbing mounting structure 2568 is connected to the optical module 318 and the interpupillary distance adjustment mechanism 322, such that the energy-absorbing mounting structure 2568 is positioned between the optical module 318 and the interpupillary distance adjustment mechanism 322. Alternatively, the optical module 318 can be directly connected to the device housing 302 via the energy-absorbing mounting structure 2568. Alternatively, the optical module 318 can be connected to the housing via the energy-absorbing mounting structure 2568 by connecting the energy-absorbing mounting structure 2568 between the device housing 302 and the optical module 318.

[0159] As an example, the energy absorption mounting structure 2568 may include a crushable material that crushes to allow the optical module 318 to be removed from the pre-impact position. Figure 25 Move to the post-impact position ( Figure 26 As another example, the energy-absorbing mounting structure 2568 may include a compressible material that compresses to allow the optical module 318 to move from a pre-impact position. Figure 25 Move to the post-impact position ( Figure 26 ).

[0160] Figure 27 This is a side cross-sectional view of an impact mitigation structure 2740 located within the internal space 528 of the device housing 302 of a head-mounted device 300 in a pre-impact position. Figure 28 This is a side cross-sectional view of the impact mitigation structure 2740 in its post-impact position. The impact mitigation structure 2740 may replace or be included in the head-mounted device 300 in addition to the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 2740 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0161] The impact mitigation structure 2740 includes a detachable mounting structure 2770. The detachable mounting structure 2770 is configured to break during an impact, which allows the optical module 318 to move relative to the device housing 302 of the head-mounted device 300.

[0162] In the example shown, the optical module 318 is supported by an interpupillary distance adjustment mechanism 322, which includes an upper guide rail 2771 and a lower guide rail 2772. The optical module 318 can slide laterally on these upper and lower guide rails for adjustment. At the pre-impact position ( Figure 27 In this configuration, each optical module 318 is connected to the lower guide rail 2772 of the interpupillary distance adjustment mechanism 322 via a separate mounting structure 2770. The separate mounting structure 2770 is configured to break in response to a force applied to the optical module 318 causing longitudinal movement of the optical module 318 (e.g., due to contact with the user's face 308). In the example shown, when the separate mounting structure 2770 breaks ( Figure 28 The optical module 318 is capable of moving away from the user's face 308. In the example shown, when the detachable mounting structure 2770 breaks, the optical module 318 pivots on the upper guide rail 2771 of the interpupillary distance adjustment mechanism 322.

[0163] Alternatively, the optical module 318 can be directly connected to the device housing 302 via the detachable mounting structure 2770. Alternatively, the optical module 318 can be connected to the housing via the detachable mounting structure 2770 by connecting the detachable mounting structure 2770 between the device housing 302 and the optical module 318.

[0164] Figure 29 This is a top schematic diagram of the impact mitigation structure 2940 located in the support structure 306 of the head-mounted device 300. The impact mitigation structure 2940 may replace the impact mitigation structure 340 or be included in the head-mounted device 300 in addition to the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 2940 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0165] In one embodiment, the impact mitigation structure 2940 includes a damper 2974 located in the support structure 306 to regulate movement of the device housing 302 relative to the user's face 308 during an impact. As an example, the damper 2974 may be a spring, a liquid-filled piston-cylinder damper, or a gas-filled piston-cylinder damper. At each side of the device housing 302, the support structure 306 is connected to the device housing 302 and includes a housing portion 2975 and an engagement portion 2976. The engagement portions 2976 are connected to the housing portion 2975 such that they extend inwardly from the housing portion 2975 toward the user and are capable of engaging relative to the user's head portion 2909. The engagement portions 2976 are also connected to the damper 2974 such that the damper 2974 resists rearward movement of the first portion relative to the engagement portion 2976 (e.g., movement of the device housing 302 toward the user's face 308). Therefore, the damper 2974 is able to resist the movement of the user's face 308 toward the device housing 302 and absorb energy.

[0166] Figure 30 This is a top schematic diagram of the impact mitigation structure 3040 of the head-mounted device 300. The impact mitigation structure 3040 may replace the impact mitigation structure 340 or be included in the head-mounted device 300 in addition to the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 3040 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0167] The impact mitigation structure 3040 includes a sliding planar connector 3078. The sliding planar connector 3078 is a structure that connects the facial interface 304 to the device housing 302, allowing the facial interface 304 to slide laterally (e.g., shear) and / or disengage from the device housing 302 during an impact in the direction indicated by the arrow to reduce compressive and rotational forces applied to the user. The sliding planar connector 3078 may include complementary mating structures on the facial interface 304 and the device housing 302, such as tracks and grooves extending laterally relative to the device housing 302 and configured to allow sliding or disengagement in response to forces exceeding a mechanical tuning force threshold. Therefore, in response to an impact, the facial interface 304 can slide laterally relative to the device housing 302 to reduce the transmission of forces and torques from the device housing 302 to the user through the facial interface 304.

[0168] Figure 31This is a top schematic diagram of the impact mitigation structure 3140 of the head-mounted device 300. The impact mitigation structure 3140 may replace the impact mitigation structure 340 or be included in the head-mounted device 300 in addition to the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 3140 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0169] The impact mitigation structure 3140 includes a mounting structure 3180 for each optical module 318. The mounting structure 3180 includes a pivot joint 3181 that pivotally connects each optical module 318 to the device housing 302 (optionally via another structure such as an interpupillary distance adjustment mechanism 322), allowing each optical module 318 to pivot about a generally vertical axis relative to the device housing 302, and thus relative to the user's face 308. This avoids or reduces user engagement with the optical module 318 during an impact by pivoting away from the user's face 308 in the direction indicated by the arrow. The pivot joint 3181 can be configured to resist pivoting below a threshold force.

[0170] Figure 32 This is a top schematic diagram of the impact mitigation structure 3240 of the head-mounted device 300. The impact mitigation structure 3240 may replace the impact mitigation structure 340 or be included in the head-mounted device 300 in addition to the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 3240 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0171] The impact mitigation structure 3240 includes a four-bar linkage 3280 supporting each optical module 318. The four-bar linkage 3280 connects to the optical modules 318 and components of the head-mounted device 300, such as the device housing 302 or the interpupillary distance adjustment mechanism 322. The four-bar linkage 3280 allows each optical module 318 to pivot about a generally vertical axis relative to the device housing 302, and therefore relative to the user's face 308. This avoids or reduces user engagement with the optical modules 318 during impact by pivoting away from the user's face 308 in the direction indicated by the arrow. The four-bar linkage 3280 can be configured to resist pivoting below a threshold force.

[0172] Figure 33This is a top schematic diagram of the impact mitigation structure 3340 of the head-mounted device 300. The impact mitigation structure 3340 may replace the impact mitigation structure 340 or be included in the head-mounted device 300 in addition to the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 3340 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0173] The impact mitigation structure 3340 includes a sliding mount 3380 that connects the optical module 318 to the device housing 302 directly or via another structure. In some embodiments, the sliding mount 3380 may be part of the interpupillary distance adjustment mechanism 322. The sliding mount 3380 mounts the optical module 318 to the device housing 302 such that the optical module 318 slides outward (e.g., according to the arrow) to avoid or reduce engagement between the user and the optical module 318 during an impact. As an example, the sliding mount 3380 may be a mechanically actuated (e.g., spring-loaded) device that is activated in response to a force exceeding a threshold applied to the optical module 318 to slide the optical module 318 outward. As another example, the sliding mount 3380 may be electromechanical, including a motor (e.g., as part of the interpupillary distance adjustment mechanism 322) activated in response to impact detection (as described above) to move the optical module 318 outward.

[0174] Figure 34 This is a top cross-sectional view of the impact mitigation structure 3440 in its pre-deployed position, which can be located within the internal space 635 of the face interface 304 of the head-mounted device 300. Figure 35 This is a top cross-sectional view of the impact mitigation structure 3440 in its deployed position. The impact mitigation structure 3440 is a specific implementation of the impact mitigation structure 340 and may be included in the head-mounted device 300 in place of the impact mitigation structure 340. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 3440 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0175] The impact mitigation structure 3440 includes a two-piece deployable support 3458. The two-piece deployable support 3458 is configured to deploy in response to an impact and space the support plate 638 from the device housing 302 to prevent the face 108 from contacting the device housing 302 or associated structures (such as the optical module 318). During an impact, the two-piece deployable support 3458 deploys by pivoting to a position between the device housing 302 and the internal support structure 636 (e.g., the support plate 638) to move the device housing 102 away from the internal support structure 636 of the face interface 304. This allows the face interface 304 to space the device housing 302 and associated components (e.g., the optical module 318) from the user's face 308.

[0176] In the illustrated embodiment, the two-piece deployable support 3458 includes a first support member 3459a, a second support member 3459b, and an actuator 3460. Support members 3459a and 3459b are structural components that, in the illustrated embodiment, have a T-shaped configuration with portions extending along the front of the device housing 302 and along the face interface 304. A portion of each of the support members 3459a and 3459b is in a pre-deployed position (…). Figure 34 Nested and / or positioned side-by-side in the expanded position ( Figure 35 The actuator 3460 causes the support member 3459 to move from a pre-deployed position to a deployed position in response to impact detection (e.g., from control electronics 211 as previously described relative to impact mitigation structure 1440). As an example, the actuator 3460 may be a linear actuator configured to move the first support member outward relative to the second support member until the axial end portion of the first support member 1359a engages the axial end portion of the second support member 1359b. Figure 35 This configuration spaces the device housing 302 and the internal support structure 636 and allows the support members 3459a, 3459b to deflect and / or deform during impact to absorb energy. As an example, the support members 3459a, 3459b may be spring-biased to an extended position and the actuator 3460 may be an actuable release mechanism (e.g., a mechanical stop disengaged by actuation of a solenoid).

[0177] Figure 36 This is a top cross-sectional view of the impact mitigation structure 3640, which is located in the pre-deployed position within the internal space 635 of the face interface 304 of the head-mounted device 300. Figure 37This is a top cross-sectional view of the impact mitigation structure 3640 in its deployed position. The impact mitigation structure 3640 is a specific implementation of the impact mitigation structure 360 ​​and may be included in the head-mounted device 300 in place of the impact mitigation structure 360. The description of the head-mounted device 300 is applicable, and the components described in connection with the impact mitigation structure 3640 are consistent with similarly named portions from the head-mounted device 300, unless otherwise indicated.

[0178] The impact mitigation structure 3640 includes a two-piece deployable support 3658. The two-piece deployable support 3658 is configured to deploy in response to an impact and space the support plate 638 from the device housing 302 to prevent the face 108 from contacting the device housing 302 or associated structures (such as the optical module 318). During an impact, the two-piece deployable support 3658 deploys by pivoting to a position between the device housing 302 and the internal support structure 636 (e.g., the support plate 638) to move the device housing 102 away from the internal support structure 636 of the face interface 304. This allows the face interface 304 to space the device housing 302 and associated components (e.g., the optical module 318) from the user's face 308.

[0179] In the illustrated embodiment, the two-piece deployable support 3658 includes a first support member 3659a, a second support member 3659b, and an actuator 3660. Support members 3659a and 3659b are structural components, and in the illustrated embodiment, they have a T-shaped configuration with portions extending along the front of the device housing 302 and along the face interface 304. A portion of each of the support members 3659a and 3659b is in a pre-deployed position (…). Figure 36 Nested and / or positioned side-by-side in the expanded position ( Figure 37The device housing 302 is moved to increase the distance between it and the internal support structure 636. Actuator 3660 causes support member 3659 to move from a pre-deployed position to a deployed position in response to impact detection (e.g., from control electronics 211 as previously described relative to impact mitigation structure 1440). As an example, actuator 3660 may be a linear actuator configured to move the first support member outward relative to the second support member. To hold support members 3659a, 3659b in the deployed position and allow them to absorb energy during an impact, support members 3659a, 3659b include interlocking structures 3661, such as complementary engagement portions (e.g., hooks, levers, holes, teeth, pawls, etc.), which engage to restrict movement of support members 3659a, 3659b from the deployed position to the deployed position. This configuration spaces the device housing 302 and the internal support structure 636 and allows the support members 3659a, 3659b to deflect and / or deform during impact to absorb energy. As an example, the support members 3659a, 3659b may be spring-biased to an extended position and the actuator 3660 may be an actuable release mechanism (e.g., a mechanical stop disengaged by actuation of a solenoid).

[0180] As used in the claims, phrases in the form of “at least one of A, B, or C” should be interpreted as covering only A, or only B, or only C, or any combination of A, B, and C.

[0181] As used herein, the terms Computer-Generated Reality (CGR) experience and CGR content refer to a fully or partially simulated environment accessed using an electronic device that allows people to interact with it. The environment can be simulated based on the movement of the user and / or device, such as by tracking the viewpoint and outputting content corresponding to that viewpoint. A CGR environment can be a Virtual Reality (VR) environment, where simulated content is presented to the user while the user is isolated from the physical world (e.g., by obstructing the visibility of the physical world), referring to a simulated environment designed to be entirely based on computer-generated sensory input from one or more senses. A CGR environment can also be a Mixed Reality (MR) environment, where simulated content is presented to the user in conjunction with the physical world, such as by overlaying simulated content on a view of the physical world. Many different types of electronic devices can be used to experience CGR environments.

[0182] Specific implementations of this disclosure may include the collection and storage of data used for the operation of the device, which may include personal information that uniquely identifies or can be used to contact or locate specific individuals. The use of this information may benefit the user and enhance the user experience. Any use or processing of this information is expected to follow well-established privacy policies and / or privacy practices. Personal information should only be collected for lawful use and only with the user's consent. The security and privacy of the information must be maintained, including compliance with any applicable laws. It is also taken into consideration that the use of this information is not mandatory for the use of the device. The user has control over whether this information is used to operate the device, and if the user does not wish to provide personal information, the device will remain functional as described herein.

Claims

1. A head-mounted device configured for wear by a user, comprising: The device casing that defines the internal space; A facial interface, the facial interface including a flexible cover defining an internal space, the facial interface being connected to the rear wall of the device housing, and the facial interface surrounding the eye chamber; A support structure configured to support the device housing and the facial interface relative to the user such that the facial interface contacts the user's face; A content display component, wherein the content display component is partially located in the internal space of the device housing, extends through the rear wall of the device housing, and is partially located in the eye chamber of the facial interface, wherein the content display component is configured to display content to the user; A first impact mitigation structure is located within the internal space of the flexible cover of the facial interface; as well as A second impact mitigation structure is located on the rear wall of the device housing and extends into the eye chamber. The first and second impact mitigation structures are configured to prevent the content display component from contacting the user during an impact with an external structure.

2. The head-mounted device according to claim 1, wherein, The first impact mitigation structure includes a bump stop located within the interior space of the flexible cover to disperse pressure from the impact.

3. The head-mounted device according to claim 1, wherein, The first impact mitigation structure includes a spring located within the internal space of the flexible cover and extending between an internal support structure within the internal space of the flexible cover and the device housing to absorb energy during the impact.

4. The head-mounted device according to claim 1, wherein, The first impact mitigation structure includes an air-filled damper located within the interior space of the flexible cover and extending between an internal support structure within the interior space of the flexible cover and the device housing to absorb energy during the impact.

5. The head-mounted device according to claim 1, wherein, The first impact mitigation structure includes a non-Newtonian foam structure located within the interior space of the flexible cover to absorb energy during the impact.

6. The head-mounted device according to claim 1, wherein, The first impact mitigation structure includes an inflatable airbag located within the interior space of the flexible cover to absorb energy during the impact.

7. The head-mounted device according to claim 1, wherein, The first impact mitigation structure includes a deployable support member that deploys during the impact to move the device housing away from the internal support structure within the internal space of the flexible cover.

8. The head-mounted device according to claim 1, wherein, The content display component includes an optical module, and the second impact mitigation structure includes an energy-absorbing material located on the rear wall of the device housing and surrounding the exposed portion of the optical module to absorb energy during the impact.

9. The head-mounted device according to claim 1, wherein, The first impact mitigation structure includes a flexible edge located within the interior space of the flexible cover, being harder than the face interface, and connected to the rear wall of the device housing to absorb energy during the impact.

10. The head-mounted device of claim 1, wherein the head-mounted device further comprises a third impact mitigation structure, the third impact mitigation structure including a damper located in the support structure to adjust the movement of the device housing and the facial interface relative to the user's face during the impact.

11. The head-mounted device according to claim 1, wherein, The first impact mitigation structure includes an elastic energy-absorbing member located within the interior space of the flexible cover and configured to absorb energy during the impact.

12. The head-mounted device of claim 1, wherein the head-mounted device further comprises a fourth impact mitigation structure, and wherein the fourth impact mitigation structure comprises a mounting structure that connects the facial interface to the device housing and causes the facial interface to detach from the device housing during the impact.

13. The head-mounted device of claim 1, wherein the head-mounted device further comprises a fourth impact mitigation structure, and wherein the fourth impact mitigation structure comprises a mounting structure that connects the facial interface to the device housing and allows the facial interface to slide laterally relative to the device housing during the impact.

14. A head-mounted device configured for wear by a user, comprising: A device housing having a rear wall that defines a portion of the eye chamber; An optical module, partially located within the eye chamber and configured to display computer-generated reality content to the user as part of a computer-generated reality experience; A support structure configured to support the device housing relative to the user; A facial interface, which is coupled to the rear wall of the device housing and configured to contact the user's face and surround the eye chamber; as well as An energy-absorbing structure is coupled to and extends from the rear wall into the eye chamber, and the energy-absorbing structure is configured to control the movement of the device housing during a dynamic loading event to prevent the optical module from contacting the user during the dynamic loading event.

15. The head-mounted device according to claim 14, wherein, The energy-absorbing structure includes an energy-absorbing material located on the posterior wall of the eye chamber adjacent to and surrounding the optical module.

16. The head-mounted device according to claim 14, wherein, The energy absorption structure includes an inflatable airbag located adjacent to the optical module within the eye chamber and inflated in response to the dynamic loading event.

17. The head-mounted device according to claim 14, wherein, The energy absorption structure includes energy absorption rings, each of which is connected to one of the optical modules and the rear wall.

18. A head-mounted device configured for wear by a user, comprising: Equipment casing; Control electronics, which are disposed within the device housing and configured to generate computer-generated reality content; An optical module, partially located within the device housing and partially located in an eye chamber adjacent to the device housing, is configured to display the computer-generated reality content to the user as part of a computer-generated reality experience; A support structure configured to support the device housing relative to the user; A facial interface coupled to the device housing and surrounding the eye chamber, the facial interface being configured to contact the user's face; and A shock-mitigating structure configured to break in response to a force applied to the optical module within the eye cavity during a dynamic loading event exceeding a mechanical tuning force threshold.

19. The head-mounted device according to claim 18, wherein, The impact mitigation structure includes a crushable energy-absorbing mounting structure that supports the optical module relative to the device housing.

20. The head-mounted device according to claim 18, wherein, The impact mitigation structure includes a detachable mounting structure that connects the side of the optical module to the device housing.

21. The head-mounted device according to claim 18, wherein, The shock-mitigation structure connects the optical module to the device housing, enabling the optical module to pivot relative to the device housing about a generally vertical axis during the dynamic loading event.

22. The head-mounted device according to claim 18, wherein, The shock-reducing structure connects the optical module to the device housing, allowing the optical module to slide outward relative to the user during the dynamic loading event.

Images