AR glasses

Abstract

The AR glasses comprise a waveguide sheet assembly, a glasses leg shell, an optical machine and a first heat dissipation assembly, the waveguide sheet assembly comprises a glasses frame and a waveguide sheet, the waveguide sheet is fixed in the glasses frame, the optical machine is arranged in the glasses leg shell, the waveguide sheet assembly is fixedly connected with the glasses leg shell, and the first heat dissipation assembly is fixedly connected with the glasses leg shell. The first heat dissipation assembly comprises a first heat dissipation part, a heat dissipation pipe and a heat conduction shell, the first heat dissipation part is attached to the optical machine, and the heat conduction shell has the same contour as the mirror frame and is fixed to the mirror frame; the heat dissipation pipes are arranged along the outline of the mirror frame and located in a space formed by the first heat conduction shell and the mirror frame, and the first heat dissipation part is used for conducting heat generated by an optical machine to the heat dissipation pipes.

Description

Technical Field

[0001] The present disclosure relates to augmented reality technology, and more specifically, to AR glasses. Background Art

[0002] With the introduction of the concept of the metaverse, AR (Augmented Reality) and VR (Virtual Reality) projection devices have developed rapidly as important interface devices of the metaverse. The miniaturization of the optical machine and the diversification of functions in the projection equipment have gradually become its key performance parameters. However, with the miniaturization of the optical machine and the diversification of functions, the problem of heat dissipation demand has also been brought about. For VR devices, due to their relatively large size, centrifugal or axial 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 generation, a full metal frame is often used for passive heat dissipation. Whether using a fan for active heat dissipation or a full metal frame for passive heat dissipation, the weight of the whole machine will increase when worn, causing users to feel uncomfortable when wearing it for a long time. Summary of the invention

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

[0004] According to a first aspect of the present invention, an AR glasses is provided, comprising: a waveguide assembly, a temple housing, an optical machine and a first heat dissipation assembly, wherein:

[0005] The waveguide assembly comprises a mirror frame and a waveguide, wherein the waveguide is fixed in the mirror frame, the optical engine is built into the temple shell, and the waveguide assembly is fixedly connected to the temple shell.

[0006] The first heat dissipation assembly includes a first heat dissipation component, a heat dissipation pipe and a heat-conductive shell, wherein the first heat dissipation component is attached to the optical machine, the heat-conductive 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 is located in the space formed by the first heat-conductive shell and the frame, and the first heat dissipation component is used to conduct the heat generated by the optical machine to the heat dissipation pipe.

[0007] Optionally, the first heat dissipation assembly further includes a second heat dissipation component, wherein the second heat dissipation component is fixedly connected to the optical machine, a portion of the first heat dissipation component is attached to the optical machine, and another portion of the first heat dissipation component is attached to the second heat dissipation component.

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

[0010] Optionally, the AR glasses further include a whole machine driving component and a third heat dissipation component, wherein:

[0011] The whole machine driving component is built into the temple housing, and the whole machine driving component is connected to the optical machine for communication.

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

[0013] The first temple shell is fixedly connected to the waveguide plate 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 include a whole machine driving component and a third heat dissipation component, wherein:

[0015] The whole machine driving component is built into the temple housing, and the whole machine driving component is connected to the optical machine for communication.

[0016] A portion of the third heat dissipation component is attached to the whole machine driving assembly, and another portion 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 includes a second heat dissipation component, wherein the second heat dissipation component is fixedly connected to the optical machine, a portion of the first heat dissipation component is attached to the optical machine, and another portion 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 contacts 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 contacts the heat dissipation tube, and the third heat dissipation component passes through the second through hole and contacts the heat dissipation tube.

[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 includes a back glue layer, a first protective layer, a graphene layer and a second protective layer, wherein the back glue layer is 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 absorbs liquid, the liquid is used to evaporate into gas when heated, and the gas is condensed and then absorbed onto the porous structure.

[0024] The AR glasses provided by the present invention include: a waveguide plate assembly, a temple shell, an optical machine and a first heat dissipation assembly, wherein the waveguide plate assembly includes a frame and a waveguide plate, the waveguide plate is fixed in the frame, the optical machine is built in the temple shell, the waveguide plate assembly is fixedly connected to the temple shell, and the first heat dissipation assembly includes a first heat dissipation component, a heat dissipation pipe and a heat-conducting shell, wherein the first heat dissipation component is attached to the optical machine, the heat-conducting 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 is located in the space formed by the first heat-conducting shell and the frame, and the first heat dissipation component is used to conduct 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 evenly dispersed to the heat-conducting shell through the heat dissipation pipe, so as to achieve the purpose of efficiently dissipating the heat generated by the optical machine to the surrounding environment.

[0025] Features and advantages of the embodiments of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 Schematic diagram of the exploded structure of AR glasses according to an embodiment of the present invention.

[0028] Figure 2 Schematic diagram of the exploded structure of AR glasses according to an embodiment of the present invention.

[0029] Figure 3 Schematic diagram of the structure of a graphene sheet according to an embodiment of the present invention.

[0030] Figure 4 Schematic diagram of the exploded structure of AR glasses according to an embodiment of the present invention.

[0031] Figure 5 1 is a partial structural diagram of AR glasses according to an embodiment of the present invention.

[0032] Figure 6 Schematic diagram of the exploded structure of AR glasses according to an embodiment of the present invention.

[0033] Figure 7 4 is a schematic diagram of the partial structure of AR glasses according to an embodiment of the present invention. DETAILED DESCRIPTION

[0034] Various exemplary embodiments of the present 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 in nature and is in no way intended to limit the embodiments of the present specification and its application or uses.

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

[0037] When users use AR glasses, the projector will generate a lot of heat. For the projector, the higher temperature will cause the brightness, contrast, color coordinates and other optical properties to decay, which will have a great impact on the user's perception. Therefore, the heat dissipation of the projector needs to be strengthened.

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

[0039] The waveguide plate assembly 110 includes a mirror frame 111 and a waveguide plate 112. The waveguide plate 112 is fixed in the mirror frame 111. The optical engine 130 is built into the temple housing 120. The waveguide plate 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 The first heat dissipation component 141 is attached to the optical engine 130, see 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-dissipating 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-dissipating component 140 is used to conduct the heat generated by the optical engine 130 to the heat-dissipating pipe 142.

[0040] The frame 111 and the temple shell 120 are fixed by fasteners, or the frame 111 and the temple shell 120 are fixed by gluing.

[0041] The material of the frame 111 is preferably plastic, and the material of the temple shell 120 is preferably plastic. This can not only reduce heat transfer to human skin, but also reduce the weight of the entire frame of the AR glasses, thereby reducing the production cost of the AR glasses.

[0042] The first heat dissipation component 141 is a graphene sheet. Figure 3 As shown, the graphene sheet includes a back glue layer, a first protective layer, a graphene layer and a second protective layer. The back glue layer is adjacent to the first protective layer, and the graphene layer is located between the first protective layer and the second protective layer. The back glue layer is used for pasting and assembly. The first protective layer and the second protective layer are both made of PET material, 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 will not add much extra weight. It can also be flexibly folded according to the spatial position to increase the flexibility of the structural design.

[0043] The heat-conducting shell 143 is a metal shell whose thermal conductivity meets 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 extra weight to the AR glasses. On the other hand, the magnesium-aluminum alloy has good thermal conductivity and is conducive to heat dissipation.

[0044] The heat-conducting housing 143 is fixed to the mirror frame 111 by gluing, or the heat-conducting housing 143 is fixed to the mirror frame 111 by fasteners.

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

[0046] The heat pipe is a copper pipe with a porous structure inside. The porous structure absorbs liquid. The liquid evaporates into gas when heated, and the gas condenses and then absorbs onto the porous structure. When the temperature of the part of the heat pipe close to the heat source rises, the liquid absorbed by the porous structure at the heat source evaporates and absorbs heat. The steam diffuses to a position far away from the heat source. The steam temperature drops and re-liquefies and then absorbs onto the porous structure again. This cycle achieves heat dissipation.

[0047] The AR glasses provided by the embodiment of the present invention, by setting a first heat dissipation component, make the heat generated by the optical machine firstly transferred to the heat dissipation pipe through the first heat dissipation component, and then the heat is evenly dispersed to the heat-conducting shell through the heat dissipation pipe, so as to achieve 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 assembly further includes a second heat dissipation component 144. The second heat dissipation component 144 is fixedly connected to the optical machine 130. A portion of the first heat dissipation component 141 is attached to the optical machine 130, and another portion of the first heat dissipation component 141 is attached to the second heat dissipation component 144. The lens frame 111 is provided with a first through hole. The second heat dissipation component 144 passes through the first through hole and contacts the heat dissipation pipe.

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

[0050] The second heat dissipation component is a metal shell whose thermal conductivity meets 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 extra weight to the AR glasses. On the other hand, the magnesium-aluminum alloy has good thermal conductivity and is conducive to heat dissipation.

[0051] In some embodiments, the lens frame is provided with a second through hole, and the first heat dissipation component passes through the second through hole and contacts the heat dissipation pipe. In this way, a portion of the first heat dissipation component is attached to the optical machine, and another portion of the first heat dissipation component extends to the heat dissipation pipe and contacts the heat dissipation pipe, thereby achieving the transfer of heat generated by the optical machine.

[0052] For AR glasses, when the projected display screen is more complex, the power consumption of the whole machine drive component that drives the optical machine will also increase, generating a large amount of heat. The whole machine drive component is arranged at the temple of the AR glasses, and the temple is in direct contact with the human skin. The large heat generated by the whole machine drive component will cause discomfort when the user wears it. Therefore, the heat dissipation of the whole machine drive component is enhanced.

[0053] In some embodiments, according to Figure 6 As shown, the AR glasses also include a whole-machine driving component 150 and a third heat dissipation component 160. The whole-machine driving component 150 is built into the temple housing 120. The whole-machine driving component 150 is communicatively connected with the optical machine 130. The temple housing 120 includes a first temple shell 121 and a second temple shell 122. The first temple shell 121 is a non-metallic shell, for example, a plastic shell. The second temple shell 122 is a heat-conducting metal shell, for example, a magnesium-aluminum alloy shell. The first temple shell 121 is provided with a through hole adapted to the second temple shell 122. The first temple shell 121 is fixedly connected to the waveguide plate assembly 110. A portion of the third heat dissipation component 160 is attached to the whole-machine driving component 150. Another portion of the third heat dissipation component 160 is attached to the second temple shell 122.

[0054] The third heat dissipation component 160 is a graphene sheet. For a specific structure, see Figure 3Graphene sheets have a large planar heat transfer coefficient and a small vertical heat transfer coefficient, which can quickly transfer heat and achieve cooling. In addition, graphene sheets are light in weight and will not add much extra weight. They can also be flexibly folded according to spatial position, increasing the flexibility of structural design.

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

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

[0057] In some embodiments, the first heat dissipation assembly also includes a second heat dissipation component. The second heat dissipation component is fixedly connected to the optical machine. A portion of the first heat dissipation component is attached to the optical machine, and another portion 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 contacts the heat dissipation pipe. The whole machine drive assembly is built into the temple housing. The whole machine drive assembly is communicatively connected to the optical machine. The temple housing includes a first temple shell and a second temple shell. The first temple shell is a non-metallic 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 adapted to the second temple shell. The first temple shell is fixedly connected to the waveguide plate assembly. A portion of the third heat dissipation component is attached to the whole machine drive assembly, and another portion 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 for details). Figure 7 ). 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 the heat is efficiently 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 the heat is dissipated to the surrounding environment through the temple shell, and the other part is conducted to the heat dissipation pipe through the second heat dissipation component, and then the heat is evenly dispersed to the heat-conducting housing through the heat dissipation pipe, and the heat-conducting housing then dissipates the heat to the surrounding environment.

[0058] In some embodiments, the 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 temple shell through the third heat dissipation component, and then the heat is dissipated to the surrounding environment through the temple shell, and the other part of the heat is evenly dispersed to the heat-conducting housing through the heat dissipation pipe, and the heat-conducting housing then dissipates the heat to the surrounding environment.

[0059] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0060] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0061] The embodiments of the present specification have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. An AR glasses, characterized in that: include: Waveguide assembly, temple housing, optical machine and first heat dissipation assembly, wherein: The waveguide assembly comprises a mirror frame and a waveguide, wherein the waveguide is fixed in the mirror frame, the optical engine is built into the temple shell, and the waveguide assembly is fixedly connected to the temple shell. The first heat dissipation assembly includes a first heat dissipation component, a heat dissipation pipe and a heat-conductive shell, wherein the first heat dissipation component is attached to the optical machine, the heat-conductive 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 is located in the space formed by the first heat-conductive shell and the frame, and the first heat dissipation component is used to conduct the heat generated by the optical machine to the heat dissipation pipe.

2. The AR glasses according to claim 1, characterized in that: The first heat dissipation assembly further includes a second heat dissipation component, wherein the second heat dissipation component is fixedly connected to the optical machine, a portion of the first heat dissipation component is attached to the optical machine, and another portion of the first heat dissipation component is attached to the second heat dissipation component. The mirror frame is provided with a first through hole, and the second heat dissipation component passes through the first through hole and contacts with the heat dissipation pipe.

3. The AR glasses according to claim 1, characterized in that: The mirror frame is provided with a second through hole, and the first heat dissipation component passes through the second through hole and contacts the heat dissipation pipe.

4. The AR glasses according to claim 1, characterized in that: The AR glasses further include a whole machine driving component and a third heat dissipation component, wherein: The whole machine driving component is built into the temple housing, and the whole machine driving component is connected to the optical machine for communication. The temple shell comprises a first temple shell and a second temple shell, the first temple shell is a non-metallic shell, the second temple shell is a heat-conducting metal shell, and the first temple shell is provided with a through hole adapted to the second temple shell. The first temple shell is fixedly connected to the waveguide plate 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.

5. The AR glasses according to claim 1, characterized in that: The AR glasses further include a whole machine driving component and a third heat dissipation component, wherein: The whole machine driving component is built into the temple housing, and the whole machine driving component is connected to the optical machine for communication. A portion of the third heat dissipation component is attached to the whole machine driving assembly, and another portion of the third heat dissipation component is attached to the temple shell, and the temple shell is a heat-conducting metal shell.

6. The AR glasses according to claim 4 or 5, characterized in that: The first heat dissipation assembly further includes a second heat dissipation component, wherein the second heat dissipation component is fixedly connected to the optical machine, a portion of the first heat dissipation component is attached to the optical machine, and another portion of the first heat dissipation component is attached to the second heat dissipation component. The mirror frame is provided with a first through hole, and the second heat dissipation component passes through the first through hole and contacts the heat dissipation pipe. The third heat dissipation component extends to the second heat dissipation component and is attached to the second heat dissipation component.

7. The AR glasses according to claim 4 or 5, characterized in that: 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 tube, and the third heat dissipation component passes through the second through hole and contacts the heat dissipation tube.

8. The AR glasses according to claim 4 or 5, characterized in that: The first heat dissipation component is a graphene sheet, and the third heat dissipation component is a graphene sheet.

9. The AR glasses according to claim 8, characterized in that: The graphene sheet comprises a back glue layer, a first protective layer, a graphene layer and a second protective layer, wherein the back glue layer is adjacent to the first protective layer, and the graphene layer is located between the first protective layer and the second protective layer.

10. 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 absorbs liquid. The liquid is used to evaporate into gas when heated, and the gas is condensed and then absorbed onto the porous structure.

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