AR glasses

Abstract

The present disclosure relates to an AR glasses, comprising: a waveguide sheet assembly, a temple shell, an optical machine and a first heat dissipation assembly, wherein the waveguide sheet assembly comprises a frame and a waveguide sheet fixed in the frame, the optical machine is built in the temple shell, the waveguide sheet assembly is fixedly connected with the temple shell, and the first heat dissipation assembly comprises a first heat dissipation component, a heat dissipation pipe and a heat conduction shell, wherein the first heat dissipation component is attached to the optical machine, the heat conduction shell has the same contour as the frame and is fixed on the frame, the heat dissipation pipe is arranged along the contour of the frame and located in the space formed by the first heat conduction shell and the frame, and the first heat dissipation component is used for conducting the heat generated by the optical machine to the heat dissipation pipe.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to augmented reality technology, and more particularly, to an AR (Augmented Reality) glasses. BACKGROUND

[0002] With the advent of the concept of the metaverse, AR (Augmented Reality) and VR (Virtual Reality) projection devices have developed rapidly as important interface devices for the metaverse. The miniaturization and diversification of functions of the light machine in the projection device have gradually become key performance parameters. However, with the miniaturization and diversification of functions of the light machine, the problem of heat dissipation demand has also arisen. For VR devices, due to their relatively large size, centrifugal or axial flow fans are often used for heat dissipation to solve the heating problem of the screen and electronic components. For AR devices with smaller size and more concentrated heat, passive heat dissipation is often used by using a full-metal frame to build the whole machine. Whether using a fan for active heat dissipation or using a full-metal frame for passive heat dissipation, the weight of the whole machine when worn will increase, causing discomfort to the user when wearing for a long time. SUMMARY

[0003] An object of the present application is to provide a new technical solution for AR glasses.

[0004] According to a first aspect of the present application, an AR glasses is provided, comprising: a waveguide sheet assembly, a temple shell, a light machine and a first heat dissipation assembly, wherein,

[0005] The waveguide sheet assembly comprises a frame and a waveguide sheet, the waveguide sheet is fixed in the frame, the light machine is built-in in the temple shell, and the waveguide sheet assembly is fixedly connected with the temple shell.

[0006] The first heat dissipation assembly comprises a first heat dissipation component, a heat dissipation pipe and a heat conduction shell, wherein the first heat dissipation component is attached to the light machine, the heat conduction shell has the same contour as the frame and is fixed on the frame, the heat dissipation pipe is arranged along the contour of the frame and located in the space formed by the first heat conduction shell and the frame, and the first heat dissipation component is used to conduct the heat generated by the light machine to the heat dissipation pipe.

[0007] Optionally, the first heat dissipation assembly further comprises a second heat dissipation component, wherein the second heat dissipation component is fixedly connected with the light machine, a part of the first heat dissipation component is attached to the light machine, and another part of the first heat dissipation component is attached to the second heat dissipation component.

[0008] The frame is provided with a first through hole, and the second heat dissipation component passes through the first through hole and is in contact with the heat dissipation pipe.

[0009] Optionally, the mirror frame is provided with a second through hole, and the first heat dissipation component passes through the second through hole and is in contact with the heat dissipation pipe.

[0010] Optionally, the AR glasses further comprise a whole machine driving assembly and a third heat dissipation component.

[0011] The whole machine driving assembly is built in the temple shell, and the whole machine driving assembly is in communication connection with the optical machine.

[0012] The temple shell comprises a first temple shell and a second temple shell, the first temple shell is a non-metal shell, the second temple shell is a heat-conducting metal shell, and the first temple shell is provided with a through hole matched with the second temple shell.

[0013] The first temple shell is fixedly connected with the waveguide sheet assembly, a part of the third heat dissipation component is attached to the whole machine driving assembly, and another part of the third heat dissipation component is attached to the second temple shell.

[0014] Optionally, the AR glasses further comprise a whole machine driving assembly and a third heat dissipation component.

[0015] The whole machine driving assembly is built in the temple shell, and the whole machine driving assembly is in communication connection with the optical machine.

[0016] A part of the third heat dissipation component is attached to the whole machine driving assembly, and another part of the third heat dissipation component is attached to the temple shell, and the temple shell is a heat-conducting metal shell.

[0017] Optionally, the first heat dissipation assembly further comprises a second heat dissipation component, the second heat dissipation component is fixedly connected with the optical machine, a part of the first heat dissipation component is attached to the optical machine, and another part of the first heat dissipation component is attached to the second heat dissipation component.

[0018] The mirror frame is provided with a first through hole, and the second heat dissipation component passes through the first through hole and is in contact with the heat dissipation pipe.

[0019] The third heat dissipation component extends to the second heat dissipation component and is attached to the second heat dissipation component.

[0020] Optionally, the mirror frame is provided with a second through hole, the first heat dissipation component passes through the second through hole and is in contact with the heat dissipation pipe, and the third heat dissipation component passes through the second through hole and is in contact with the heat dissipation pipe.

[0021] Optionally, the first heat dissipation component is a graphene sheet, and the third heat dissipation component is a graphene sheet.

[0022] Optionally, the graphene sheet comprises a back adhesive layer, a first protective layer, a graphene layer and a second protective layer, wherein the back adhesive layer is immediately adjacent to the first protective layer, and the graphene layer is located between the first protective layer and the second protective layer.

[0023] Optionally, the heat dissipation pipe is a copper pipe with a porous structure inside, and the porous structure adsorbs a liquid, the liquid is used to evaporate into a gas when heated, and the gas is condensed and then adsorbed onto the porous structure.

[0024] The AR glasses provided by the application comprise a waveguide sheet assembly, a leg shell, an optical machine and a first heat dissipation assembly, wherein the waveguide sheet assembly comprises a frame and a waveguide sheet, the waveguide sheet is fixed in the frame, the optical machine is built in the leg shell, the waveguide sheet assembly is fixedly connected with the leg shell, and the first heat dissipation assembly comprises a first heat dissipation component, a heat dissipation pipe and a heat conduction shell body, wherein the first heat dissipation component is attached to the optical machine, the heat conduction shell body has the same contour as the frame and is fixed on the frame, and the heat dissipation pipe is arranged along the contour of the frame and located in the space formed by the first heat conduction shell body and the frame, the first heat dissipation component is used for conducting the heat generated by the optical machine to the heat dissipation pipe, so that the heat generated by the optical machine is first conducted to the heat dissipation pipe through the first heat dissipation component, and then the heat is uniformly dispersed to the heat conduction shell body through the heat dissipation pipe, so that the heat generated by the optical machine is efficiently dissipated to the surrounding environment.

[0025] The features of the embodiments of the present application and the advantages thereof will become apparent and more readily appreciated from the following detailed description, with reference to the following figures, in which: BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and together with the description, serve to explain the principles of the present application.

[0027] Figure 1 is an exploded structural schematic diagram of AR glasses according to an embodiment of the present application.

[0028] Figure 2 is an exploded structural schematic diagram of AR glasses according to an embodiment of the present application.

[0029] Figure 3 is a structural schematic diagram of a graphene sheet according to an embodiment of the present application.

[0030] Figure 4 is an exploded structural schematic diagram of AR glasses according to an embodiment of the present application.

[0031] Figure 5 is a partial structural schematic diagram of AR glasses according to an embodiment of the present application.

[0032] Figure 6 This is an exploded structural diagram of AR glasses according to an embodiment of the present invention.

[0033] Figure 7 This is a partial structural schematic diagram of AR glasses according to an embodiment of the present invention. Detailed Implementation

[0034] Various exemplary embodiments of this specification will now be described in detail with reference to the accompanying drawings.

[0035] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the embodiments of this specification or their application or use.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0037] When users use AR glasses, the projector generates a significant amount of heat. High temperatures can degrade optical performance, including brightness, contrast, and color coordinates, negatively impacting the user's viewing experience. Therefore, enhanced heat dissipation is necessary for projector optical engines.

[0038] In one embodiment of the present invention, AR glasses are provided. Figure 1 As shown, the AR glasses include a waveguide assembly 110, a temple housing 120, an optical engine 130, and a first heat dissipation assembly 140.

[0039] The waveguide assembly 110 includes a lens frame 111 and a waveguide 112. The waveguide 112 is fixed in the lens frame 111. The optical engine 130 is built into the temple housing 120. The waveguide assembly 110 is fixedly connected to the temple housing 120. The first heat dissipation assembly 140 includes a first heat dissipation component 141. Figure 1 (Not shown), heat pipe 142, and heat-conducting housing 143. The first heat dissipation component 141 is attached to the optical engine 130, see details below. Figure 2 The heat-conducting housing 143 has the same profile as the lens frame 111 and is fixed to the lens frame 111. The heat dissipation pipe 142 is arranged along the profile of the lens frame 111 and is located in the space formed by the heat-conducting housing 143 and the lens frame 111. The first heat dissipation component 140 is used to conduct the heat generated by the optical engine 130 to the heat dissipation pipe 142.

[0040] The frame 111 is fixed to the temple housing 120 by fasteners, or the frame 111 is glued to the temple housing 120.

[0041] The material of the frame 111 is preferably plastic, and the material of the leg shell 120 is preferably plastic, so as to reduce the heat transfer to the human skin and reduce the weight of the AR glasses frame and the production cost of the AR glasses.

[0042] The first heat dissipation component 141 is a graphene sheet. According to Figure 3 As shown in the figure, the graphene sheet includes an adhesive layer, a first protective layer, a graphene layer, and a second protective layer. The adhesive layer is adjacent to the first protective layer, and the graphene layer is between the first protective layer and the second protective layer. The adhesive layer is used for pasting assembly. The materials of the first protective layer and the second protective layer are PET, which protects the graphene layer. The graphene layer has a large planar heat transfer coefficient and a small vertical heat transfer coefficient, which can quickly transfer heat and achieve cooling. In addition, the graphene sheet is light in weight and does not add much weight. It can also be folded and arranged flexibly according to the space position, increasing the flexibility of the structure design.

[0043] The heat-conducting shell 143 is a metal shell with a heat conductivity meeting the preset requirements, for example, magnesium-aluminum alloy. On the one hand, the magnesium-aluminum alloy is light in weight, so that the heat-conducting shell does not add much weight to the AR glasses. On the other hand, the magnesium-aluminum alloy has good heat conduction performance, which is beneficial to heat dissipation.

[0044] The heat-conducting shell 143 is glued and fixed with the frame 111, or the heat-conducting shell 143 is fixed with the frame 111 through fasteners.

[0045] The heat dissipation pipe 142 can be welded and fixed on the heat-conducting shell 143. Alternatively, the space formed by the heat-conducting shell 143 and the frame 111 is filled with a heat-conducting material, such as silicone grease, in addition to the heat dissipation pipe 142. In this way, the heat can be quickly transferred between the heat dissipation pipe and the heat-conducting shell, which is beneficial to heat dissipation.

[0046] The heat dissipation pipe is a copper pipe with a porous structure inside, and the porous structure adsorbs a liquid. The liquid is used to evaporate into gas when heated, and the gas condenses and is adsorbed onto the porous structure again. When the temperature of the part of the heat dissipation pipe close to the heat source rises, the liquid adsorbed by the porous structure at the heat source end evaporates and absorbs heat, the steam diffuses to a position away from the heat source end, the steam temperature decreases and liquefies again and is adsorbed onto the porous structure, and the cycle is repeated to achieve heat dissipation.

[0047] The AR glasses provided by the embodiment of the present application set the first heat dissipation component, so that the heat generated by the optical machine is first conducted to the heat dissipation pipe, and then the heat is uniformly dispersed to the heat-conducting shell through the heat dissipation pipe, achieving the purpose of efficiently dissipating the heat generated by the optical machine to the surrounding environment.

[0048] In some embodiments, according to Figure 4As shown, the first heat dissipation component further includes a second heat dissipation part 144. The second heat dissipation part 144 is fixedly connected with the light engine 130. A part of the first heat dissipation part 141 is attached to the light engine 130, and another part of the first heat dissipation part 141 is attached to the second heat dissipation part 144. The frame 111 is provided with a first through hole. The second heat dissipation part 144 passes through the first through hole and contacts the heat dissipation pipe.

[0049] According to Figure 5 As shown, the second heat dissipation part 144 is a shell.

[0050] The second heat dissipation part is a metal shell with a heat conduction coefficient meeting preset requirements, for example, magnesium-aluminum alloy. On the one hand, the magnesium-aluminum alloy has a relatively light mass, so that the heat conduction shell arranged does not additionally increase the weight of the AR glasses, and on the other hand, the magnesium-aluminum alloy has good heat conduction performance, which is beneficial to heat dissipation.

[0051] In some embodiments, the frame is provided with a second through hole, and the first heat dissipation part passes through the second through hole and contacts the heat dissipation pipe. In this way, a part of the first heat dissipation part is attached to the light engine, and another part of the first heat dissipation part extends to the heat dissipation pipe and contacts the heat dissipation pipe, so as to realize the transmission of the heat generated by the light engine.

[0052] For the AR glasses, when the projected display picture is relatively complex, the power consumption of the whole machine driving component driving the light engine will also rise synchronously, and a relatively large amount of heat is generated. The whole machine driving component is arranged at the temple position of the AR glasses, and the temple directly contacts the human skin. The relatively large amount of heat generated by the whole machine driving component will cause discomfort of the user when wearing. Therefore, the whole machine driving component is subjected to heat dissipation enhancement.

[0053] In some embodiments, according to Figure 6 As shown, the AR glasses further include a whole machine driving component 150 and a third heat dissipation part 160. The whole machine driving component 150 is built in the temple shell 120. The whole machine driving component 150 is in communication connection with the light engine 130. The temple shell 120 includes a first temple shell 121 and a second temple shell 122. The first temple shell 121 is a non-metal shell, for example, a plastic shell. The second temple shell 122 is a heat conduction metal shell, for example, a magnesium-aluminum alloy shell. The first temple shell 121 is provided with a through hole matched with the second temple shell 122. The first temple shell 121 is fixedly connected with the waveguide sheet assembly 110. A part of the third heat dissipation part 160 is attached to the whole machine driving component 150. Another part of the third heat dissipation part 160 is attached to the second temple shell 122.

[0054] The third heat dissipation part 160 is a graphene sheet, and the specific structure is shown in Figure 3The graphene sheet has a large planar heat transfer coefficient and a small vertical heat transfer coefficient, can quickly transfer heat, and realizes cooling. In addition, the graphene sheet is light in weight and does not increase much weight, and can be folded and arranged flexibly according to the space position, thereby increasing the flexibility of the structural design.

[0055] In the embodiment, the heat generated by the whole machine driving assembly is first conducted to the second temple shell through the third heat dissipation component, and then dissipated to the surrounding environment through the second temple shell.

[0056] In some embodiments, the AR glasses further include a whole machine driving assembly and a third heat dissipation component. The whole machine driving assembly is built in the temple shell. The whole machine driving assembly is in communication connection with the optical machine. A part of the third heat dissipation component is attached to the whole machine driving assembly, and another part of the third heat dissipation component is attached to the temple shell. The temple shell is a heat-conducting metal shell. For example, the temple shell is a magnesium-aluminum alloy. In this way, the heat generated by the whole machine driving assembly is first conducted to the temple shell through the third heat dissipation component, and then dissipated to the surrounding environment through the temple shell.

[0057] In some embodiments, the first heat dissipation assembly further includes a second heat dissipation component. The second heat dissipation component is fixedly connected with the optical machine. A part of the first heat dissipation component is attached to the optical machine, and another part of the first heat dissipation component is attached to the second heat dissipation component. The frame is provided with a first through hole. The second heat dissipation component passes through the first through hole and is in contact with the heat dissipation pipe. The whole machine driving assembly is built in the temple shell. The whole machine driving assembly is in communication connection with the optical machine. The temple shell includes a first temple shell and a second temple shell. The first temple shell is a non-metal shell, for example, a plastic shell. The second temple shell is a heat-conducting metal shell, for example, a magnesium-aluminum alloy shell. The first temple shell is provided with a through hole matched with the second temple shell. The first temple shell is fixedly connected with the waveguide sheet assembly. A part of the third heat dissipation component is attached to the whole machine driving assembly, another part of the third heat dissipation component is attached to the second temple shell, and the third heat dissipation component extends to the second heat dissipation component and is attached to the second heat dissipation component (see Figure 7 for details). In this way, the heat generated by the whole machine driving assembly is first conducted to the temple shell through the third heat dissipation component, and then dissipated to the surrounding environment through the temple shell. In this way, part of the heat generated by the whole machine driving assembly is conducted to the temple shell through the third heat dissipation component, and then dissipated to the surrounding environment through the temple shell, and another part of the heat is conducted to the heat dissipation pipe through the second heat dissipation component, and then uniformly dispersed to the heat-conducting shell through the heat dissipation pipe, and then dissipated to the surrounding environment through the heat-conducting shell.

[0058] In some embodiments, the mirror frame is provided with a second through hole, the first heat dissipation component passes through the second through hole and contacts the heat dissipation pipe, and the third heat dissipation component passes through the second through hole and contacts the heat dissipation pipe. In this way, part of the heat generated by the whole machine driving assembly is conducted to the leg shell through the third heat dissipation component, and then the heat is dissipated to the surrounding environment through the leg shell, and the other part of the heat is evenly dispersed to the heat conduction shell through the heat dissipation pipe, and then the heat is dissipated to the surrounding environment through the heat conduction shell.

[0059] Each of the embodiments in the specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments.

[0060] The above describes specific embodiments of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that in the embodiments and still achieve the desired result. In addition, the processes depicted in the drawings do not necessarily require the specific order or sequential order shown to achieve the desired result. In some embodiments, multi-task processing and parallel processing are possible or can be advantageous.

[0061] The above has described the embodiments of the specification, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of technology in the market, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

Claims

1. An AR glasses, characterized in that, include: Waveguide assembly, temple housing, optomechanical system, and first heat dissipation assembly, among which, The waveguide assembly includes a lens frame and a waveguide plate, the waveguide plate being fixed to the lens frame, the optical engine being built into the temple housing, and the waveguide assembly being fixedly connected to the temple housing. The first heat dissipation assembly includes a first heat dissipation component, a heat dissipation pipe, and a heat-conducting housing. The first heat dissipation component is attached to the optical engine. The heat-conducting housing has the same outline as the lens frame and is fixed to the lens frame. The heat dissipation pipe is arranged along the outline of the lens frame and is located in the space formed by the first heat-conducting housing and the lens frame. The first heat dissipation component is used to conduct the heat generated by the optical engine to the heat dissipation pipe. The first heat dissipation assembly further includes a second heat dissipation component, wherein the second heat dissipation component is fixedly connected to the optical engine, a portion of the first heat dissipation component is attached to the optical engine, and another portion of the first heat dissipation component is attached to the second heat dissipation component. The frame has a first through hole, and the second heat dissipation component passes through the first through hole and contacts the heat dissipation pipe; The AR glasses also include a whole-device drive assembly and a third heat dissipation component, wherein... The overall drive assembly is built into the temple housing and is communicatively connected to the optomechanical system. A portion of the third heat dissipation component is attached to the overall drive assembly, and another portion of the third heat dissipation component is attached to the temple shell, which is made of thermally conductive metal. The third heat dissipation component extends to the second heat dissipation component and is attached to the second heat dissipation component.

2. The AR glasses according to claim 1, characterized in that, The frame has a second through hole, through which the first heat dissipation component passes and contacts the heat dissipation pipe.

3. The AR glasses according to claim 1, characterized in that, The temple housing includes a first temple housing and a second temple housing. The first temple housing is a non-metallic housing, and the second temple housing is a thermally conductive metal housing. The first temple housing has a through hole that is adapted to the second temple housing. The first temple housing is fixedly connected to the waveguide assembly, a portion of the third heat dissipation component is attached to the overall drive assembly, and another portion of the third heat dissipation component is attached to the second temple housing.

4. The AR glasses according to claim 1, characterized in that, A portion of the third heat dissipation component is attached to the overall drive assembly, and another portion of the third heat dissipation component is attached to the temple housing, which is a thermally conductive metal housing.

5. The AR glasses according to claim 1, characterized in that, The frame has a second through hole, the first heat dissipation component passes through the second through hole and contacts the heat dissipation pipe, and the third heat dissipation component passes through the second through hole and contacts the heat dissipation pipe.

6. The AR glasses according to claim 1, characterized in that, The first heat dissipation component is a graphene sheet, and the third heat dissipation component is a graphene sheet.

7. The AR glasses according to claim 6, characterized in that, The graphene sheet includes an adhesive backing layer, a first protective layer, a graphene layer, and a second protective layer, wherein the adhesive backing layer is adjacent to the first protective layer, and the graphene layer is located between the first protective layer and the second protective layer.

8. The AR glasses according to claim 1, characterized in that, The heat dissipation pipe is a copper pipe with a porous structure inside, and the porous structure adsorbs liquid. The liquid is used to evaporate into gas when heated, and the gas is condensed and then adsorbed onto the porous structure.

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