WO2022104346A1

WO2022104346A1 - Augmented reality system and methods

Info

Publication number: WO2022104346A1
Application number: PCT/US2021/072339
Authority: WO
Inventors: Graham Michael FRANCIS; Jun Lin
Original assignee: Mira Labs, Inc.
Priority date: 2020-11-10
Filing date: 2021-11-10
Publication date: 2022-05-19

Abstract

A system and method for use with AR/VR systems. The system and method may include modular electronic components and attachment to AR/VR systems. The system and method may include attachment mechanisms.

Description

AUGMENTED REALITY SYSTEM AND METHODS

PRIORITY

[0001] The instant application claims priority to US Provisional Patent Application 63/112,139, filed November 10, 2020, which is incorporated by reference in its entirety herein.

BACKGROUND

[0002] Conventional augmented and virtual reality devices are designed to be a one size fits all application in which one device is offered to fit different applications or deployment scenarios. Most of the devices are also not designed to accommodate different environments or conditions.

[0003] Augmented reality (AR) or virtual reality (VR) systems have not been integrated into other devices to permit use of the AR/VR system in different situations and environments. For example, many AR/VR systems include a fully defined support system positioned on the head of a wearer that does not permit use with a hard hat for use in construction or other environments. Incorporating AR/VR into a hat or hard hat configuration may be undesirable as hard hats and other head mounted support systems are often dropped, which would damage the AR/VR system. The impact of the dropped hat on the electronics of the VR system integrated can be substantial, especially when considering the combined weight of the hat and the electronics systems supporting the AR/VR system.

[0004] In addition, when electronics are introduced into an augmented reality or virtual reality device, they are simply positioned on the device. Generally, the electronics are positioned based on proximity to a power source, or in available space on the headset. The combined weight of an embedded AR/VR device is relatively heavy to be mounted to a head support, such as a strap or hat. The position for the comfort of the wearer, weight distribution on the device, or other ergonomic considerations are generally ignored. SUMMARY

[0005] Exemplary embodiments described herein include a modular environment resistant electronic subsystems and attachments.

[0006] Exemplary embodiments described herein include a modular electronics system that may be attached or coupled to different augmented reality (AR) or virtual reality (VR) systems to permit different application assemblies. As described herein, a headset assembly and a hardhat variation are provided as examples only. Exemplary embodiments of the module electronics system described herein may be incorporated, attached to, integrated into, or otherwise used or connected to different AR/VR assemblies. Additional support variations may include, for example, aviation helmets, industrial or recreational climbing helmets, military tactical helmets, safety helmets, etc. Exemplary embodiments may also be used in training, quality assurance, process performance, transportation, etc. Head mounting systems may therefore be used to assist the user to integrate an AR and/or VR system into a head mountable system for use in these applications according to embodiments described herein.

[0007] Exemplary embodiments described herein may permit easy and secure attachment of an AR/VR system to a supporting device, such as a hard hat, strap support system, or other configuration, while responding to impact conditions created when the supporting device is dropped. Exemplary embodiments may therefore include a modular attachment system that allows for the detachment of the AR/VR electronic system or combinations thereof are detached upon a desired conditions, such as a high energy drop or impact, while maintaining the attachment during normal operation and wear.

[0008] Exemplary embodiments described herein include environment protection within the modular components. Environment protection may include protection against moisture, water immersion, dust resistance, etc.

DRAWINGS

[0009] FIGS. 1A-1H illustrate exemplary modular augmented or virtual reality systems and component parts according to embodiments described herein. [0010] FIGS. 2A-2B illustrate an exemplary module of the modular augment or virtual reality system according to embodiments described herein.

[0011] FIGS. 3A-3D illustrate an exemplary module of the modular augmented or virtual reality system according to embodiments described herein.

[0012] FIG. 4 illustrates an exemplary modular and/or mounting system according to embodiments described herein.

[0013] FIGS 5A-B illustrates exemplary attachment of the mounting system according to embodiments described herein.

[0014] FIG. 6A-6B illustrate an exemplary mounting device according to embodiments described herein.

DESCRIPTION

[0015] The following detailed description illustrates by way of example, not by way of limitation, the principles of the invention. This description will clearly enable one skilled in the art to make and use the invention, and describes several embodiments, adaptations, variations, alternatives and uses of the invention, including what is presently believed to be the best mode of carrying out the invention. It should be understood that the drawings are diagrammatic and schematic representations of exemplary embodiments of the invention, and are not limiting of the present invention nor are they necessarily drawn to scale.

[0016] Exemplary embodiments described herein include components, structures, systems, and methods for use with augmented reality (AR), or virtual reality (VR) systems. Applicant refers to any combination of augmented reality and/or virtual reality systems as AR/VR

[0017] Exemplary embodiments may include modular electronic and/or system components for use with AR/VR systems. The modular systems may permit selective use of electronic components.

-3- [0018] Exemplary embodiments described herein include distributed positioning of the electronics about the AR/VR support structure for desirable ergonomic weight distribution. The modular system may permit the distributed positioning, but is not required to remain within the scope of the instant description.

[0019] Exemplary embodiments described herein include system components that are environmentally resistant, such as water resistant, water proof, dust proof, etc. The environmentally resistant configuration may include a housing and a cable for coupling the environmentally resistant component to communicate with other system components. The housing may be in one or two portions. The housing may include an aperture to pass the cabling. The cabling may include a strain relief sleeve circumscribing the cable. A gasket may also be used that is compressed by the housing and/or strain relief sleeve to create a seal between the cabling and housing. The configuration may permit an environmentally resistant space within the housing. One or more housings or portions of a housing(s) may be used to create the environmentally resistant environment. Each housing may or may not enclose the environmentally resistant space.

[0020] Exemplary embodiments include attachment systems to couple the AR/VR system to a device. The attachment system may permit removable attachment of the AR/VR system from the device. The attachment system may permit detachment under application of sufficient force or under desired conditions. The device may be another support structure, such as a headset, hat, hardhat, harness, etc.

[0021] Although embodiments of the invention may be described and illustrated herein in terms of different system components and modular designs, it should be understood that embodiments of this invention are not so limited. Different system components may be used in any combination. For example, the modular electronics may be used independent of the attachment system, and vice versa. Also, the systems and methods for creating an environmentally resistant space for electronics or AR/VR components can be used in fully integrated systems without modular components. Accordingly, any combination of features may be used, and no single feature is necessary to the invention.

-4- [0022] Exemplary embodiments may include any combination of the attachment features and/or modular designs. Exemplary embodiments may be used for any purpose, environment, and/or application and remain within the scope of the instant application. In an exemplary embodiment, the modular system may permit multiple users to share portions of a modular system, while maintaining personalized portions of the modular system. For example, the electronic component parts of the system may be shared, while the parts that are in contact with the user, such as the head, and/or manipulated by the user’s hands may be provided and used on a per individual basis. Sanitation or ease of use may be increased between users to reduce the spread of contamination, disease, illness, parasites, etc. In other words, exemplary embodiments of the detachable design may allow multiple users to share one device or portions of one device while using their own hardhats/head mounts for sanitary, ease of use, or monetary reasons. Exemplary embodiments may also or alternatively expand device compatibility to more head worn gear in additional or alternatively to a hard hat or strap system, such as helmets, respirators, etc.

[0023] FIGS. 1A-1B illustrate exemplary AR/VR systems utilizing an exemplary modular electronics system according to embodiments described herein. FIG. 1C illustrates an exemplary modular electronics system for use with FIGS. 1A-1B. As illustrated by FIGS. 1A- 1B, the same modular electronics system may be used and coupled with different augmented reality or virtual reality systems. Exemplary embodiments of an AR/VR system may include configurations such as a headset 102 or hardhat 104. Other AR/VR configurations may also be used, such those using different attachment methods including hats, harnesses, straps, or having different optical and display elements and/or positions or configurations of the optical and display elements. FIGS. 1F-1H illustrate exemplary headsets that may be used with exemplary embodiments described herein. FIG. IF illustrates an exemplary aviation helmet. FIG. 1G illustrates an exemplary climbing helmet. FIG. 1H illustrates an exemplary tactical helmet. An exemplary embodiment of an AR headset is disclosed in Applicant’s co-pending application published as US 2018/0284454, which is incorporated in its entirety herein by reference. Therefore, the same modular electronics system, or different selections of modules, may be used with one or more different variations of AR and/or VR systems.

-5- [0024] Exemplary embodiments of an AR/VR system may include an optical component 124 for visualizing a virtual reality object by a user. As illustrated, the optical component 124 is a lens that reflects an image from a display into the eye of the user. The optical component 124 may also permit viewing by the user, such that the virtual object is superimposed over the physical environment viewed by the user. The optical element may therefore comprise a reflective surface that is also transparent or semi-transparent for viewing there through. The optical element 124 may be fully enclosed and create the entire environment to be viewed by the user, to create an augmented reality system. The optical element 124 in this case may again be a reflective surface for reflecting an image from a separate display to the eye of a user, and/or may directly be a display for directly projecting an image into the eyes of the user.

[0025] Exemplary embodiments of the AR/VR system may include a frame 126 out of the view of a user for supporting a display. The display may be integrated into the frame, or may be inserted therein The frame may be configured to support the display above the view of the user with a display angled away from the eye of the user and toward the optical component 124. The display may generate a virtual object or scene that, when reflected off of the optical component, is seen by the user.

[0026] Exemplary embodiments of the AR/VR system may include a support or attachment system 122. The support system may be any configuration of straps, harness, etc. As illustrated, the support system 122 may include straps coupled to the frame that together circumscribe a user’s head. The straps may permit configurable attachment such that a circumference size of the headset may be adjusted to position and retain the headset at a desired location on a wearer’s head. The support system may also include a hat or other top of the head support system. Other additional support features may be included, such as netting, additional straps, etc.

[0027] In an exemplary embodiment, the support system 122 may be used as the connection for one or more features of the features described herein. For example, the support system 122, including the straps and/or frame, may be used for the modular attachment to another device, such as the hard hat described herein. The support system 122, including the

-6- straps and/or frame, may be used to support and selectively attach one or more modular component parts for use with the AR/VR system.

[0028] FIGS. 1D-1E illustrate exemplary embodiments of the support system 122 comprising a strap coupled to opposing sides of the frame and circumscribe the head of the user in combination with the frame to support the display. The strap may include a plurality of attachment points 140 to couple the modular components to the support system 122. As illustrated, the attachment points 140 may be through rivets, knobs, inserts, screws, pins, or other coupling mechanism. The attachments, as illustrated may be toward a front of the support system for a first modular component and toward the read of the support system for a second modular component. The offset of the modular components at an obtuse radial offset (more than 90 degrees radially around the circumference of the user’s head) may be used to offset or distribute the weight of the system.

[0029] As seen in FIG. 1C an exemplary modular electronics system may include one or more electronic modules that may be coupled together and/or to the AR/VR system for selective combination of components.

[0030] The separate electronic modules may be coupled by one or more cords to permit a desired positioning of the modules on the AR/VR system to distribute weight and provide a more ergonomic system configuration. For example, as illustrated in FIGS. 1A-1C, the electronic modules may include a power source and data receiving device. The power source may be separate from the data receiving device. As illustrated, the data receiving device may be positioned at a location of the AR/VR system to facilitate receipt of the desired data. For example, if the data receiving device is intended to receive an image or video of an object being observed by the wearer, then the data receiving device may be positioned on the side of the headset proximate the optical component and/or frame and be forward directed to overlap with the field of view with the wearer. The electronic module for the power source may be positioned to ergonomically counter the data receiving device and positioned on an approximate opposite side of the headset. For example, since the data receiving module may be positioned on a forward side of the headset, the power supply module may be positioned on a rear side of the headset. As illustrated, the power supply module is positioned on a back of the headset, such that it would be on the back of the head of a wearer in an in use position.

[0031] The module electronics system may include a separate housing to enclose one or more electronic components and/or be configured to provide one or more features to the AR/VR system. The separate housings may provide cavities therein that can be environmentally resistant and/or separated from an environment on an exterior of the housing. The one or more electronic modules may be configured to connect through one or more cords that traverse the housing. The cords may be used to pass data, instructions, power, electrical signals, current, and combinations thereof. In an exemplary embodiment, the housing may be created from one, two, or more portions. The housing may include an aperture for passing the cord from an interior of the housing to an exterior of the housing. The housing may be configured to variably reduce the aperture size and/or provide pressure on a seal positioned between the housing and the cord. In an exemplary embodiment, the seal may be created by a strain relief covering on the cord and/or with a gasket between the housing and the cord or strain relief covering. The module electronic system may be configured to couple to the augmented or virtual reality system. For example, as seen in FIGS. 1D-1E the modular electronics system are directly coupled to the attachment points 140 on the support system 122 as described herein.

[0032] FIGS. 2A-2B illustrates an exemplary modular component according to embodiments described herein. The exemplary module component may include a data receiving device 200. The data receiving device may include an input 212, and additional circuits 214, such as for memory, processing, communication, control, etc. The input may be a camera for capturing single or sequential images such as in a video. The camera may observe the environment in different spectrums, such as for observation in low light, such as night vision, observation of temperature variations, such as heat vision, etc. Exemplary inputs devices may include cameras, acoustic sensor, visual sensor, light sensor, inferred sensor, and combinations thereof. As illustrated, the data receiving device 200 may be a camera module including a camera 212 and supporting electronics 214, such as a circuit board, controller, memory, processor, etc. The camera and supporting electronics may be positioned within a housing 202. The camera may communicate with other parts of the AR/VR system through a cable 206. The housing 202 may include an aperture 216. Within the aperture, a sealing gasket 210 may be positioned. The cable may include a cable strain relief 208. The cable strain relief 208 may establish 360 degree sealing around the cable jacket. The housing 202 may be created from two sides that are positioned together to enclose the camera and/or electronics. The two portions of the housing may be coupled together with a gasket 204 to create a seal between the two portions of the housing. Constant compression of the cable sealing gasket 210 may be achieved by compressing the two portions of the housing together. In an exemplary embodiment, the housing may include a tapered fence that permits the two portions of the housing to come together and reduce a dimension of the aperture, thereby compressing the cable sealing gasket therein.

[0033] Exemplary embodiments of the data receiving device may couple to the AR/VR system through attachment components. Exemplary attachment components may include rivets, buttons, snaps, clips, mated surfaces, etc. The attachment components may permanently or semipermanently couple the modular electronics to a support structure, such as a strap described herein that then removably couples to other portions of a support structure, such as the hardhat, helmet, additional straps, etc. The modular components may also removably couple to any or all of the support structure. The modular components may couple to the support system through the attachment of, for example, the coupling of the housing to the cables of the modular component, such as the compression of the cable sealing gasket.

[0034] As shown and described, the housing may create an interior cavity for enclosing electronic components. The housing may include an aperture for accommodating a cable to traverse across the housing to permit electrical connection from an interior of the housing to an exterior of the housing. The aperture may be sealed by using sealing components including a strain relief component that fully circumscribes the cables and creates a sealing shape approximating the shape of the aperture within the housing. The sealing components may also include a sealing gasket positioned adjacent to the aperture and between the housing and cable. The sealing gasket may seal the housing to create an interior cavity to maintain an environment separate from an environment exterior to the housing. The modular component may be configured to impose a compressive force on the sealing gasket to maintain the seal of the aperture. The compression may be created by a tapered interface between two portions of the housing. The tapered interface may also include a gasket to seal the housing portions together. [0035] FIGS. 3A-3D illustrates an exemplary modular component according to embodiments described herein. The exemplary module component may include a battery module 300. The battery module may include a battery and attachment components. The battery may be positioned within a housing 301. The battery may electrically couple with other parts of the AR/VR system through a cable 306. As illustrated, the battery module may include a sealing interface between the battery and support structure. The support structure housing 302 may include an aperture 317 for receiving a cable 306 extending from the battery. Positioned in the aperture of either or both of the battery housing 301 or support structure housing 302 may include a cable strain relief 308 and sealing gasket 310. The sealing gasket 310 may create a water proof seal between the support structure housing, the battery housing, the cable, the cable strain relief, and combination of components thereof. The overmolded cable strain relief 308 may permit 360 degree sealing around the cable jacket. The sealing gasket 310 may include a waterproof foam with a double side laminated with pressure sensitive adhesives to establish a sealing between the cable strain relief and the battery module. The housing 302 of the attachment components (mounting brace) may be secured to the battery housing to maintain the constant compression on the sealing gasket 310 for sealing as well as securing the battery module to the support structure. For example, as shown, a retaining plate 320 may be used to apply pressure to the battery 301, housing 302, strain relief 308, sealing gasket 310, and any combination thereof, using screws 322. The housing 302 may also or alternatively be used in place of retaining plate 20 to apply pressure to the sealing gasket by positioning the sealing gasket between the housing 302 and battery housing 301. The entire sealing interface design can be replicated on any support structure or device configuration.

[0036] The exemplary sealing interface of the data receiving module may be use for the power module and vice versa. In an exemplary embodiment, the housing enclosing the electronics defines an environment separate from an environment exterior of the housing. In one configuration, the housing enclosing the electronics creates a compression force at an aperture of the housing to impose a compressive force on the sealing components to improve sealing of the module and separation of the interior and exterior environments. In one configuration, the housing interacts with another surface or structure (such as the attachment components, another housing, sealing plate, etc.) to impose a compressive force on the sealing components to improve sealing of the module and separation of the interior and exterior environments of the housing.

-10- [0037] Exemplary embodiments described herein include modular attachments to create various configurations of the AR/VR system. Exemplary embodiments described herein include a mounting system. The mounting system may be used to attach an AR/VR system to another device. The attachment to another device may permit application of the AR/VR system in different environments and/or change the configuration of the AR/VR system, such as providing alternative mounting systems or attachment systems of the AR/VR system to a user or wearer.

[0038] An exemplary embodiment includes a virtual or augmented reality system. The virtual or augmented reality system may be as described herein or include any AR/VR system. For example, the AR/VR system may include a virtual or augmented reality display, an optical component configured to reflect an image from the virtual or augmented reality display into a field of view of the wearer. The optical element may be configured to permit the wearer to see through the optical component, such that the image reflected by the optical component is superimposed over a field of view of the wearer of a physical environment observed by the wearer through the optical element.

[0039] The virtual or augmented reality system may include a first modular component having a first housing, a first cord traversing from an interior of the first housing to an exterior of the first housing, and a second modular component having a second housing, a second cord traversing from an interior of the second housing to an exterior of the second housing. The first housing may enclose a camera and the second housing may enclose a power supply. The first housing may be separate and/or isolated from the second housing. In an exemplary embodiment, the first cord may be configured to extend between the camera to the virtual or augmented reality display, and the second cord may be configured to extend between the camera and the power supply, or from the power supply to the first housing of the camera.

[0040] In an exemplary embodiment the first housing and second housing may each include an aperture to permit the first and/or second cord to pass through or traverse the housing from an exterior to an interior thereof. For example, the first housing may include an aperture configured to pass the first cord and the second cord, while the second housing may include an aperture configured to pass the second cord. Each of the housing may include a sealing gasket that is configured to engage with the aperture and seal the interior of the housing from an

-11- exterior thereof. For example, the first housing may include a first sealing gasket and the second housing may include a second sealing gasket, and the first housing has an interior cavity that is enclosed such that an environment within the first housing can be separate from an exterior environment of the first housing, and the second housing defines an interior cavity that is enclosed such that an environment within the second housing can be separated from an exterior environment of the second housing. In an exemplary embodiment, the sealing is a water proof seal.

[0041] In an exemplary embodiment, a modular system is provided including a first modular component having a housing, a cord traversing from an interior of the housing to an exterior of the housing. The housing may include an aperture in which the cord passes there through. The system may include a strain relief sleeve positioned about the chord, and a sealing gasket positioned between the housing and the strain relief sleeve. The system may be configured such that a compression force is applied to the sealing gasket to seal the housing.

[0042] In an exemplary embodiment, the strain relief sleeve may have a portion that is configured to approximately the shape of the aperture. For example, a portion of the strain relief sleeve may include a sleeve that circumscribes the cord, and a flanged or planar portion that extends outward. The flanged or planar portion may define an exterior perimeter shape that approximates or is greater than the aperture. The strain relief portion may therefore fully cover or fill the aperture of the housing. In an exemplary embodiment, the strain relief sleeve has a shape to approximate the shape of the aperture. In an exemplary embodiment, the strain relief sleeve comprises a planar projection that is larger than the aperture.

[0043] In an exemplary embodiment, the housing comprises two parts and the housing includes a tapered fence so that attachment of the two parts of the housing is permitted to apply the compression force on the sealing gasket. In an exemplary embodiment, a compression plate positioned and configured to compress the sealing gasket to or between the housing. In an exemplary embodiment, a portion of the strain relief sleeve and/or the sealing gasket may be positioned between the compression plate and the housing, and the compression plate is configured to impose a compression force on the sealing gasket. The force may be imposed through screw attachment of the compression plate to the housing. The housing may enclose a camera, a power source, or some other electronic and/or optical system.

[0044] In an exemplary embodiment, an augmented reality system is provided having an optical component for reflecting an image from a display into the view of a wearer, the optical component configured to permit a user to see there through such that the image reflected from the optical component is superimposed on a field of view of the wearer; a modular power supply enclosed in a first water resistant housing; and/or a modular data receiving device enclosed in a second water resistant housing. The modular power supply and the modular data receiving device are coupled by a cord, wherein the cord is configured to traverse through the first water resistant housing and the second water resistant housing. The modular power supply may be configured to couple to a back of the augmented reality system, while the modular data receiving device may be configured to couple to a side of the augmented reality system toward a front of the augmented reality system.

[0045] FIG. 4 illustrates an exemplary mounting system 400 for coupling an AR/VR system 402 to another device. The other device may provide mounting or attachment to a wearer alone or in conjunction with other support structures of the AR/VR system. As illustrated, the other device may be a hard hat 404. The other device may also be one or more of the modules described herein. The system may include mounting clips 406 that coupled the hardhat 404 at an attachment location 408 to the AR/VR system 402 at the support structure 410. Two mounting clips are shown, but a desired number such as one, two, three, four, etc. may be used.

[0046] As illustrated, the AR/VR system 402 may include a support structure 410. The support structure 410 is configured to support the AR/VR system components, such as the optical element, frame, display, etc. The support structure 410 may also be used to couple and be positioned at a desired location on a wearer’s head. The support structure may also use another device, such as the exemplary hard hat to be positioned at a desired location on a wearer’s head. The support structure may define a full or partial circumference such that the support structure may be directly positioned on the wearer’s head and maintain the AR/VR system on a wearer’s head. The support structure may also provide support on a wearer’s head through attachment through the coupled structure, such as a hat. [0047] As illustrated, the support structure 410 may be one or more elongated strap(s). As described above, the strap may create a full circumference and define a loop that may attach to itself. The strap may also be formed in one or more pieces and define a partial circumference and together or separately coupled to another structure through the mounting system described herein.

[0048] As illustrated, the mounting clip 406 may be removably coupled to the AR/VR system 402 and/or the additional component 404. The mounting clip 406 may, for example, have a first attachment interface for coupling to the additional component 404 and a second attachment interface for coupling the AR/VR system 402.

[0049] FIGS. 5A-5B illustrate an exemplary mounting system coupling an AR system 502 to another device 504. FIG. 5A illustrates the system fully decoupled, while FIG. 5B illustrates the system partially coupled with the mounting device 506 coupled to an other device 504, but remaining separate from the AR/VR device 502. As illustrated, the mounting system may permit separate attachment between the mounting device 508 and the other device 504, or the mounting device 508 and the VR/AR system 502. The mounting system may also be integrated into one or the other of the attached device and/or the AR/VR system. For example, the mounting device 508 may be permanently coupled to one or the other of the AR/VR device 502 or the other device 504.

[0050] The mounting system may include a mounting device 508 to separately couple to another device 504, such as hard hat, and/or the AR/VR device 502. In an exemplary embodiment, the mounting device may couple at a first end portion to another device 504 at an attachment location 508 on the other device. In an exemplary embodiment, the mounting device 506 may couple at a second end portion, opposite the first end portion, to an AR/VR device. That attachment to the AR/VR device may be through a support structure, such as a strap 510 described herein.

[0051] In an exemplary embodiment, the mounting system comprises a mounting device having two separate attachment interfaces for coupling to two separate obj ects, such as a first attachment object and a second attachment object. The first attachment object may be, for example, a hard hat, helmet, structure, support structure, harness, module, etc. The second

-14- attachment object may be, for example, a support structure, the VR/AR system, strap, module, etc. In an exemplary embodiment, the two separate attachment interfaces are configured to removably couple to another object.

[0052] The removable attachment created at each of the interfaces may comprise a different attachment strength. A different attachment strength means that the attachment through one interface will be maintained while the attachment through the other interface is not maintained, or attachment is decoupled, through application of the same force or under the same event or condition. For example, under an impact event of a specific force, one interface may be configured to decouple the attachment between the mounting device and the first object, while the other of the interfaces is configured to maintain the attachment between the mounting device and the second object.

[0053] Exemplary embodiments of the mounting device may comprise one or more attachment interfaces that are intended to maintain attachment to another object when engaged during normal use of the AR/VR system. Normal use of the system may include when the system is positioned on the user’s head and normal movement is encountered. In an exemplary embodiment the attachment may be removable or may be permanent or may be semi-permanent. In an exemplary embodiment, the attachment interface is integrated into the other object.

[0054] Exemplary embodiments of the mounting device may comprise one or more attachment interfaces of the mounting device that is configured to decouple from another object when experience an adverse event. The adverse event may include impact or drop occurrences of sufficient force that could damage the AR/VR system electronics and/or system components. The sufficient force may be, for example, the force experience by the system when dropped from a given height, such as one foot, 2 feet, 3, feet, or more than 3 feet. Exemplary adverse events and corresponding sufficient forces may also include impact or forces experienced by an event that, when experienced may permit the failure of specific component part(s) if detachment does not occur. For example, a lower number of attachment points, such as the illustrated two attachment locations, may introduce large stress locations on the device at those attachment locations if the AR/VR system were maintained to the hard hat during an impact event. Given the weight of the hat and the AR/VR system, and impact scenario or repeated impact events may cause failure at these large stress locations or attachment locations, unless the system is able to decouple upon impact.

[0055] FIGS. 6A-6B illustrates an exemplary mounting device 600 according to embodiments described herein. The mounting device 600 comprises a first attachment interface 602 for coupling the mounting device 600 to a first object (not shown) and a second attachment interface 604 for coupling the mounting device 600 to a second object (not shown). The attachment may be permanent, semi-permanent, or removable. As illustrated, the attachment is removable. The first attachment interface 602 is positioned at a first end of the mounting device 600 and the second attachment interface 602 is positioned at a second end of the mounting device, opposite the first end of the mounting device. Exemplary embodiments include modifying the mounting device from a semi-permanent or removable device to a permanent device. For example, once inserted or coupled to another object, the mounting device may be adhered or otherwise permanently coupled to the object. The mounting device interface may provide the support or structure for improving the adhered surface.

[0056] An exemplary mounting device 600 may include an attachment interface 602. A side view of an exemplary mounting device 600 is illustrated in FIG. 6B. As seen in FIG. 6B, the first end of the mounting device may be generally curved. The curvature may approximate a curvature of an outer surface of a hat (or other object, including, without limitation, a hard hat, helmet, safety covering, etc.) the mounting device is configured to couple to. The curvature may be created from a fully curved surface, step-wise curved surface(s), step-wise linear segments that approximate a curve, and combinations thereof. In an exemplary embodiment, a terminal end of the first attachment interface is configured to be positioned at an angle or out of plane from a central portion of the mounting device. The attachment interface 602 may include an outer perimeter section 606. The outer perimeter section 606 may include one or more lateral sides that create the out of plane extension. For example, the outer perimeter section may include at least one lateral side that extends out of plane or tapers away from a plane from one end of the attachment interface to the other end of the attachment interface as the attachment interface is traversed along the lateral side. [0057] The attachment interface 602 may also include an inner projection 608. The inner projection 608 may be separate from at least a portion of the outer perimeter along the at least one lateral side such that the inner projection 608 may move relative to a portion of the outer perimeter 606 along a length. As illustrated, the inner projection 608 is separated from the outer perimeter along the two lateral sides. The inner projection 608 is also separated from a central portion of the mounting device along a length between the separation from the two lateral sides. The inner projection 608 therefore may include three sides that are unattached to the remainder of the mounting device. The inner projection 608 may include an end that is coupled to the remainder of the mounting device adjacent or toward the terminal end of the attachment interface or the terminal end of the mounting device. The inner projection 608 and outer perimeter 606 may therefore be coupled together at one end without separation and may form a single monolithic, integrated piece at the juncture. The inner projection 608 may therefore not move relative to the outer perimeter at one end of the inner projection 608 and may move relative to the outer perimeter at the opposite end of the inner projection.

[0058] In an exemplary embodiment, the inner projection may extend out from the outer perimeter. The inner projection may therefore have a linear shape or may have a smaller radius of curvature than the outer perimeter. An exterior surface of the inner projection may extend out further than an exterior surface of the outer perimeter on the convex curved side of the mounting device. The inner projection may therefore create an elevation difference that creates a local maximum, surface elevation discontinuity, lip, flange, and/or engagement interface on the convex side of the mounting device relative to the outer surface, convex side of the outer perimeter. In an exemplary embodiment, the inner projection may be configured to move relative to the outer perimeter, such that the elevation difference created on the convex side of the mounting device may be reduced or removed, such that the inner projection and outer perimeter have approximately the same shape and/or local surface elevation. The resting state of the inner projection may form the elevation difference, while a deformed state may remove, reduce, or minimize the elevation difference through application of an external force.

[0059] Referring back to FIG. 5A, the engagement interface may couple to a first object. As illustrated the engagement interface is configured to couple to a hard hat. The curvature of the engagement interface is shaped to approximate the outer surface of the hard hat proximate

-17- the location of attachment. The hard hat may have an attachment location 508. As illustrated, the attachment location is an aperture in the hat. The aperture may be created by positioning a hole in the hat surface such that the aperture passes through the hat surface. The aperture may be created by providing a projection surface on an exterior of the hat surface and creating a hole there through. In this case, the aperture is created by a three sided hoop or ring positioned on an exterior surface of the hat. The aperture may also be positioned through a lower perimeter lip or bill of the hard hat. As illustrated, two apertures are provided on opposing sides of the hard hat.

[0060] In an exemplary embodiment, the first engagement interface may be configured with a resting configuration and a deformed configuration. The resting configuration may position the inner projection out of surface alignment from the exterior perimeter such that a discontinuity is created in the surface elevation. As first engagement interface includes a terminal end in which the inner projection and outer perimeter are directly attached such that there is no relative movement between the two and the exterior surfaces are coextensive and continuous.

[0061] In an exemplary embodiment, the first terminal end of the engagement interface therefore fits within the aperture and may be inserted therein. As the engagement interface is inserted, the projection tapers outward from the outer perimeter making the cross sectional thickness of the engagement interface greater. During insertion, the perimeter of the hard hat defining the aperture contacts the outer perimeter and/or inner projection and exerts a force on the inner projection such that the surfaces of the projection and outer perimeter are aligned. The inner projection and outer perimeter are therefore able to pass through the aperture. Once the inner projection is fully through the aperture, the external force from the hard hat is removed, and the inner projection may return to a remembered configuration and project outward from the exterior surface of the outer perimeter, thereby creating a discontinuity in the thickness of the engagement interface. The discontinuity creates a lip that engages the perimeter of the hard hat defining the aperture. Therefore, the engagement interface is locked into place as the inner projection encounters the edge of the hard hat and cannot pass there through.

[0062] The engagement interface may intentionally be decoupled from the hard hat by a user. In this instance, an exterior force may be imposed onto the inner projection to bring the exterior surfaces of the inner projection to be aligned with the exterior surface of the outer perimeter, such that the thickness of the engagement interface is reduced and can pass through the aperture of the hard hat. The engagement interface is therefore configured to be removable coupled from the first object. The engagement interface may be configured to maintain the attachment between the mounting device and the object during normal and/or extraordinary use. Such use may include adverse events, such as impact forces or drops. The engagement interface may be configured to decouple and recouple the mounting device from the object through intentional action or choice of the user.

[0063] Referring back to FIGS. 6A-6B, an exemplary mounting device 600 may include an attachment interface 604. As illustrated in the side view shown in FIG. 6B, the second end of the mounting device may be generally curved. The curvature may create opposing side surfaces 614 and a connecting surface 610. The attachment interface may be generally curved through the side surfaces and connecting surface extending between the side surfaces. This configuration may be generally c-shaped. The attachment interface may be linearly segmented defining a portion of a rectangular half. The attachment interface may be a combination of linear segments and curves there between. The attachment interface 604 may be generally shaped to approximate a portion of an exterior surface of the object to be coupled to. The approximation may be in a width of an attachment location of the object approximately equal to the width between the opposing side surfaces 612. The opposing side surfaces 612 may be configured to bend or flex, thereby permitting the width between the opposing side surfaces 612 to change. An object may therefore be inserted between the opposing side surfaces, and the opposing side surface may grip an exterior surface of the inserted object. The opposing side surfaces may also include a lip at a terminal end of the opposing sides opposite the connecting side. An inserted object may be approximately the same side as the separation distance between the opposing side surface. The inserted object may also be positioned between the connecting side and the lip or projection on the opposing side surface such that the lip creates a projection retaining the object within the space created by the opposing side surfaces.

[0064] The engagement interface may intentionally be decoupled from the second object or support structure or strap by a user. In this instance, an exterior force may be imposed onto one or both of the opposing sides to separate the opposing sides and create a greater gap there between. A portion of the second object may therefore be inserted there between or removed therefrom. Once fully seated between the engagement interface, the opposing sides may be relaxed and retain the inserted portion of the object through direct contact, imposed pressure, and/or one or more projections on the opposing sides. The engagement interface is therefore configured to be removable coupled from the second object. The engagement interface may be configured to maintain the attachment between the mounting device and the object during normal use. The engagement interface may be configured to disconnect the attachment between the mounting device and the object during adverse events, such as impact forces or drops. The engagement interface may be configured to automatically decouple during specific events or imposed impact forces above a threshold, and recouple the mounting device from the object through intentional action or choice of the user.

[0065] Referring back to FIG. 5B, an exemplary mounting device 506 includes an attachment interface configured to couple to a support structure 510 of the AR system. The attachment interface comprises opposing sides and a connecting side. The attachment interface creates a generally c-shape engagement surface. The interior surface of the engagement surface is configured to approximate an exterior surface of an attachment interface of the second object. The attachment interface of the second object may be a strap of the VR system. The strap may have a generally rectangular cross section. The height of the strap may approximate the inner distance between the opposing sides of the attachment interface. One or both of the opposing sides of the attachment interface may be configured to flex, such that the attachment interface may be positioned around the corresponding attachment interface of the second object.

[0066] An exemplary embodiment described herein may include a mounting device having a first end defining a first attachment interface and a second end defining a second attachment interface.

[0067] In an exemplary embodiment, the first end may include an outer perimeter and an inner projection, and a first end of the inner projection is attached to the outer perimeter such that there is no relative movement between the outer perimeter and the inner projection at the attachment, and a second end of the inner projection is separated from the outer perimeter such that the inner projection is permitted to move relative to the outer perimeter. The inner projection may extend out of the surface defined by the outer perimeter in a resting configuration, and the inner projection is configured to be moved under application of an external force such that the inner projection is aligned with the outer surface defined by the outer perimeter.

[0068] In an exemplary embodiment, the second attachment interface comprises opposing lateral interior sides and a connecting side between and extending between the opposing lateral interior sides.

[0069] In an exemplary embodiment, the first attachment interface and second attachment interface are configured to removably attach to another obj ect. The first attachment interface may be configured to maintain an attachment to a first object during an impact event when the second attachment interface is configured to decouple attachment to a second object during the impact event.

[0070] An exemplary embodiment comprises a hard hat augmented reality system. The system may include a hard hat configured to be positioned on a wearers head and an augmented reality system including an optical component configured to reflect a displayed image into an eye(s) of a wearer. The optical component may be configured to permit the wearer to see there through such that the reflect image is superimposed onto a field of view of the wearer as seen through the optical component. The hard hat augmented reality system may include a mounting device between the hard hat and a support of the augmented reality subsystem. The augmented reality subsystem may include the optical component, a display, power supply, camera, supporting electronics, communication system, and any combination thereof. The augmented reality subsystem may be coupled together and/or supported by the support. The support may be one or more straps.

[0071] In an exemplary embodiment, the mounting device may include a first interface end to couple the mounting device to the hard hat, and a second interface end to couple the mounting device to the augmented reality subsystem. The first interface end may be configured to fit through an aperture of the hard hat. The first interface end may include a deformable projection. The deformable projection may be configured to deform and permit the deformable projection to pass through the aperture of the hard hat. The deformable projection may be configured to return to a remembered configured and prevent the deformable projection from returning through the aperture of the hard hat. The remembered configured may create a step wise elevation difference on an outer surface of the first interface end that engaged a perimeter of the hard hat defining the aperture.

[0072] In an exemplary embodiment, the mounting device may include a second interface end configured to couple the mounting device to the augmented reality or virtual reality subsystem The second interface end may be as described herein. For example, the second interface end may be c-shaped having opposing internal surface and a connecting surface extending between the opposing internal surfaces. The c-shaped second interface end may be flexible such that a distance between the opposing internal surfaces may be changed.

[0073] In an exemplary embodiment, the mounting device is configured such that the second interface end is configured to release the coupled augmented reality or virtual reality subsystem upon a threshold impact event. The threshold impact event may be as described herein and measured by a threshold impact force, or may be based on a likelihood of damage to the system components.

[0074] In an exemplary embodiment, the hard hat augmented reality system includes only two mounting device positioned on opposing sides of the hard hat. Two mounting locations permits easy attachment of the AR/VR subsystem to the hard hat. However, two mounting locations provides for high stress and/or strain to be experienced by the mounting locations upon certain events, such as shock, drop, or impact events. Therefore, the two mounting locations are configured to detach from the coupled AR/VR subsystem during such an event. The hard hat augmented reality system may include two mounting devices. Each of the two mounting device may include a first interface end and a second interface end. The first interface end may be configured to removably couple to a hard hat and maintain attachment during normal use and during an adverse impact event. The second interface end may be configured to removably couple to an augmented or virtual reality subsystem and may be configured to maintain attachment during normal use but may be configured to decouple or detach during an adverse impact event. [0075] Exemplary embodiments described herein include the use of a modular and removably attachable system according to embodiments described herein. Exemplary embodiments may include providing an AR or VR system according to embodiments described herein. An exemplary AR system may include a strap system and frame system. The frame system may be configured to support a display and a lens for reflecting images from the display into an eye of the user. The strap system may be configured to circumscribe at least a portion of the head of the user and couple to the frame. The method may include providing a connection device and the other object, wherein the connection device is configured to couple the AR or VR system to the other object. The other object may be a head covering, such as a hard hat, helmet, support system, or other object as described herein. The method may include removably coupling the connection device to the AR or VR system at the strap and/or removably coupling the connection device to the other object.

[0076] In an exemplary embodiment, the method may include dropping the coupled AR or VR system to the other object. In an exemplary embodiment, the AR or VR system may decouple from the other object during impact of the dropping of the coupled AR or VR system to the other obj ect.

[0077] In an exemplary embodiment, the method may include removing the connection device from either or both of the AR or VR system and/or the other object. The method may thereafter include replacing whichever of the AR or VR system and/or the other object with a replacement AR or VR system and/or a replacement other object and coupling the connection device to the replacement AR or VR system and/or the replacement other object. The replacement may be to permit a different user to use the AR or VR system, replace components (such as for cleaning, maintenance, upgrade, application use, etc ).

[0078] Although embodiments of this invention have been fully described with reference to the accompanying drawings, it is to be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of embodiments of this invention as defined by the appended claims. Specifically, exemplary components are described herein. Any combination of these components may be used in any combination. For example, any component, feature, step or part

-23- may be integrated, separated, sub-divided, removed, duplicated, added, or used in any combination and remain within the scope of the present disclosure. Embodiments are exemplary only, and provide an illustrative combination of features, but are not limited thereto.

[0079] When used in this specification and claims, the terms "comprises" and "comprising" and variations thereof mean that the specified features, steps or integers are included. The terms are not to be interpreted to exclude the presence of other features, steps or components.

[0080] The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separately, or in any combination of such features, be utilised for realising the invention in diverse forms thereof.

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Claims

25 CLAIMS The invention claimed is:

1. A modular system, comprising: a virtual or augmented reality display; a first modular component having a first housing, a first cord traversing from an interior of the first housing to an exterior of the first housing; and a second modular component having a second housing, a second cord traversing from an interior of the second housing to an exterior of the second housing.

2. The modular system of claim 1, wherein the first housing encloses a camera, and the second housing encloses a power supply.

3. The modular system of claim 2, wherein the first cord is configured to extend between the camera to the virtual or augmented reality display, and the second cord is configured to extend from the power supply to the first housing.

4. The modular system of claim 3, wherein the first housing comprises an aperture configured to pass the first cord and the second cord; and the second housing comprises an aperture configured to pass the second cord.

5. The modular system of claim 4, wherein the first housing comprises a first sealing gasket and the second housing comprises a second sealing gasket, wherein the first housing defines an interior cavity that is enclosed such that an environment within the first housing can be separated from an exterior environment of the first housing, and the second housing defines an interior cavity that is enclosed such that an environment with in the second housing can be separated form an exterior environment of the second housing.

6. A modular system, comprising: a first modular component having a housing, a cord traversing from an interior of the housing to an exterior of the housing.

7. The module system of claim 6, further comprising an aperture in the housing in which the cord passes there through, and a strain relief sleeve positioned around the chord, and a sealing gasket positioned between the housing and the strain relief sleeve.

8. The module system of claim 7, wherein the modular system is configured to apply a compression force on the sealing gasket.

9. The module system of claim 8, wherein the strain relief sleeve has a shape to approximate the shape of the aperture.

10. The module system of claim 8, wherein the strain relief sleeve comprises a planar projection that is larger than the aperture.

11. The module system of claim 8, wherein the housing comprises two parts and the housing comprises a tapered fence that housing such that attachment of the two parts together generates the compression force on the sealing gasket.

12. The module system of claiml 1, wherein the housing encloses a camera.

13. The module system of claim 7, further comprising a compression plate positioned and configured to compress the sealing gasket to the housing.

14. The module system of claim 13, wherein a portion of the strain relief sleeve and the sealing gasket is positioned between the compression plate and the housing, and the compression plate is configured to impose a compression force on the sealing gasket.

15. The module system of claim 14, wherein the housing encloses a power source.

16. An augmented reality system, comprising: an optical component for reflecting an image from a display into the view of a wearer, the optical component configured to permit a user to see therethrough such that the image reflected from the optical component is superimposed on a field of view of the wearer,

-26- a modular power supply enclosed in a first water resistant housing; and a modular data receiving device enclosed in a second water resistant housing.

17. The augmented reality system of claim 16, wherein the modular power supply and the modular data receiving device are coupled by a cord, wherein the cord is configured to traverse through the first water resistant housing and the second water resistant housing.

18. A mounting device, comprising: a first end defining a first attachment interface; and a second end defining a second attachment interface.

19. The mounting device of claim 18, wherein the first end comprises an outer perimeter and an inner projection, and a first end of the inner projection is attached to the outer perimeter such that there is no relative movement between the outer perimeter and the inner projection at the attachment, and a second end of the inner projection is separated from the outer perimeter such that the inner projection is permitted to move relative to the outer perimeter.

20. The mounting device of claim 19, wherein the inner projection extends out of the surface defined by the outer perimeter in a resting configuration, and the inner projection is configured to be moved under application of an external force such that the inner projection is aligned with the outer surface defined by the outer perimeter.

21. The mounting device of claim 18, wherein the second attachment interface comprises opposing lateral interior sides and a connecting side between and extending between the opposing lateral interior sides.

22. The mounting device of claim 18, wherein the first attachment interface and second attachment interface are configured to removably attach to another obj ect

23. The mounting device of claim 22, wherein the first attachment interface is configured to maintain an attachment to a first object during an impact event when the second attachment interface is configured to decouple attachment to a second object during the impact event.

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