Augmented reality device

Abstract

The invention provides augmented reality equipment, which comprises an optical waveguide used for transmitting an optical signal emitted into the optical waveguide and coupling out the optical signal to form image information; the projection light machine is used for projecting the optical signal towards the optical waveguide; and the adjusting mechanism is used for adjusting the included angle between the optical waveguide and the projection light machine so as to adjust the image combination distance of the augmented reality equipment. According to the augmented reality device provided by the invention, the image combination distance can be changed, so that the augmented reality device can be applied to different application scenes, and the use comfort is improved.

Description

Technical Field

[0001] The present application belongs to the field of electronic product technology, and specifically relates to augmented reality devices. Background Art

[0002] Augmented Reality (AR) is a technology that calculates the position and angle of camera images in real time and adds corresponding images, so that real environment and virtual objects can be superimposed on the same screen or space in real time. Binocular display AR glasses need to be imaged to ensure the normal use of AR glasses. At present, the image distance of AR glasses is fixed and cannot be adjusted according to needs, and cannot adapt to different application scenarios. Summary of the invention

[0003] In view of this, the present application provides an augmented reality device that is capable of adjusting the image distance to match different application scenarios.

[0004] The present application provides an augmented reality device, comprising: an optical waveguide, the optical waveguide being used to transmit an optical signal incident into the optical waveguide and coupling out the optical signal to form image information; a projection optical machine, the projection optical machine projecting the optical signal toward the optical waveguide; and an adjustment mechanism, the adjustment mechanism being used to adjust the angle between the optical waveguide and the projection optical machine, thereby adjusting the combined image distance of the augmented reality device.

[0005] In the augmented reality device provided in the present application, the adjustment mechanism can adjust the angle between the optical waveguide and the projection optical machine, so that the output angle of the light signal in the optical waveguide changes, thereby changing the combined image distance, so that the augmented reality device can be used in different application scenarios, improve the comfort of use, and be more conducive to the use of the augmented reality device. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0007] Figure 1 A schematic diagram of the structure of an augmented reality device provided in one embodiment of the present application.

[0008] Figure 2 A schematic structural diagram of an augmented reality device provided in another embodiment of the present application.

[0009] Figure 3 Provided for one embodiment of the present application Figure 1 An exploded diagram of an augmented reality device.

[0010] Figure 4 A schematic diagram of the structure of an optical waveguide provided in one embodiment of the present application.

[0011] Figure 5 for Figure 4 The cross-sectional schematic diagram of the optical waveguide shown is along the AA direction.

[0012] Figure 6 A cross-sectional schematic diagram of an augmented reality device provided in one embodiment of the present application.

[0013] Figure 7 A schematic diagram of the structure of an adjustment mechanism provided in one embodiment of the present application.

[0014] Figure 8 A schematic diagram of the structure of an adjustment mechanism and a projection optical machine provided in one embodiment of the present application.

[0015] Fig. 9 for Figure 8 Schematic diagram of the exploded view of the central adjustment mechanism and projection optical machine.

[0016] Fig.10 Another embodiment of the present application provides Figure 1 An exploded diagram of an augmented reality device.

[0017] Fig.11 A cross-sectional schematic diagram of an augmented reality device provided in one embodiment of the present application.

[0018] Fig.12 for Fig.11 Magnified view of the dashed area.

[0019] Fig.13 Provided for one embodiment of the present application Figure 7 The schematic cross-sectional view of the adjustment mechanism shown in the BB direction.

[0020] Fig.14 Provided for one embodiment of the present application Fig.13 Magnified view of the dashed area.

[0021] Fig.15 Another embodiment of the present application provides Fig.13 Magnified view of the dashed area.

[0022] Fig.16 Another embodiment of the present application provides Figure 7 The schematic cross-sectional view of the adjustment mechanism shown in the BB direction.

[0023] Fig.17 Another embodiment of the present application provides Figure 7 The schematic cross-sectional view of the adjustment mechanism shown in the BB direction.

[0024] Fig.18 Provided for one embodiment of the present application Figure 7The schematic cross-sectional view of the adjustment mechanism shown in the CC direction.

[0025] Fig.19 Provided for one embodiment of the present application Fig.18 Magnified view of the dashed area.

[0026] Description of labels:

[0027] Adjustment mechanism-100, first adjustment component-110, first mounting member-111, first adjustment member-112, first magnet-1121, fourth magnet-1122, second adjustment component-120, second mounting member-121, second adjustment member-122, second magnet-1221, third magnet-1222, third adjustment component-130, third mounting member-131, third adjustment member-132, optical waveguide-200, substrate-210, coupling-in region-211, coupling-out region-212, grating structure-220, projection optical machine-300, supporting mechanism-400, augmented reality device-500. DETAILED DESCRIPTION

[0028] The following are exemplary embodiments of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

[0029] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0030] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "support", and "installation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first", "second", "third", and "fourth" are used for descriptive purposes only and do not indicate or imply relative importance or implicitly indicate the number of technical features indicated.

[0031] In the description of the present application, the terms "upper", "inside", "outside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0032] The present application provides an augmented reality device 500. The augmented reality device 500 may be a head-mounted device, such as glasses, a helmet, etc. Figure 1 , is a schematic diagram of the structure of an augmented reality device 500 provided in one embodiment of the present application, wherein the augmented reality device 500 is a pair of glasses, i.e., augmented reality glasses; please refer to Figure 2 , is a schematic diagram of the structure of an augmented reality device 500 provided in another embodiment of the present application, wherein the augmented reality device 500 is a helmet, that is, an augmented reality helmet. Of course, Figure 1 and Figure 2 The shape of the augmented reality device 500 is only exemplified, and the augmented reality device 500 may also be configured to have other shapes that can be worn on the user's head. The following is a detailed description using augmented reality glasses as an example.

[0033] See also Figure 3 , provided in one embodiment of the present application Figure 1 The exploded schematic diagram of the augmented reality device 500 is shown in FIG. 5 . The augmented reality device 500 includes an optical waveguide 200 and a projection optical machine 300. The projection optical machine 300 projects an optical signal toward the optical waveguide 200. The optical waveguide 200 is used to transmit the optical signal injected into the optical waveguide 200 and couple out the optical signal to form image information. In this way, a virtual image can appear on the real image in front of the naked eye, thereby realizing the function of augmented reality.

[0034] In the present application, the optical waveguide 200 may include a reflective array optical waveguide and a diffraction optical waveguide, and the diffraction optical waveguide may include a surface relief grating and a volume holographic grating, which may be selected according to the implementation mechanism of the augmented reality device 500. Figure 4 and Figure 5 , Figure 4 Schematic diagram of the structure of an optical waveguide 200 provided in one embodiment of the present application. Figure 5 for Figure 4The cross-sectional schematic diagram of the optical waveguide in the AA direction shown in the figure, the optical waveguide 200 may include a substrate 210 and a grating structure 220, the substrate 210 has an in-coupling region 211 and an out-coupling region 212 arranged at intervals, and the grating structure 220 is arranged in the in-coupling region 211 and the out-coupling region 212. Specifically, the grating structure 220 may include, but is not limited to, a plurality of substructures of the same shape and parallel to each other, for example, the grating structure 220 may include at least one of a binary grating, a tilted grating, a blazed grating, and a two-dimensional grating, etc. The grating structures 220 arranged in the in-coupling region 211 and the out-coupling region 212 may be of the same type or different types, and the grating structures 220 in different regions are arranged on the same side of the substrate 210. The grating structure 220 in the in-coupling region 211 is used to couple the optical signal into the substrate 210, and the grating structure 220 in the out-coupling region 212 is used to couple the optical signal transmitted in the substrate 210 out of the substrate 210. In another embodiment of the present application, the substrate 210 may also have a turning area, and the grating structure 220 is also arranged in the turning area. The turning area, the coupling-in area 211 and the coupling-out area 212 are arranged at intervals, and the turning area is used to expand the pupil of the graphic information in the optical signal; the optical signal coupled into the optical conduction by the coupling-in area 211 passes through the turning area, and then couples the optical signal out of the optical waveguide 200 through the coupling-out area 212. The grating structure 220 arranged in the turning area and the grating structure 220 arranged in the coupling-in area 211 and the coupling-out area 212 may be of the same type or different type. In the present application, the cross-section of the optical waveguide 200 in the thickness direction may be, but is not limited to, circular, quasi-circular, elliptical, quasi-elliptical, quadrilateral, quasi-quadrilateral, circular arc quadrilateral, quasi-circular arc quadrilateral, etc., and may be selected as needed.

[0035] In one embodiment of the present application, Figure 3 As shown, the augmented reality device 500 also includes a bearing mechanism 400, which is used to carry the optical waveguide 200. The arrangement of the optical waveguide 200 and the bearing mechanism 400 can be selected as needed, for example, the optical waveguide 200 can be arranged in engagement with the bearing mechanism 400, or can be arranged in a screw connection, etc. In one embodiment of the present application, the bearing mechanism 400 includes a frame assembly, and the optical waveguide 200 is carried in the frame assembly. Specifically, the frame assembly can have a hollow portion, and the optical waveguide 200 is arranged in the hollow portion, so as to be carried by the frame assembly. The number of hollow portions in the frame assembly can be set according to the number of optical waveguides 200. In one embodiment, the frame assembly includes a first frame and a second frame, and the first frame and the second frame both have a hollow portion, and the hollow portions of the first frame and the second frame both carry the optical waveguide 200. In another embodiment of the present application, the bearing mechanism 400 may also include a wearable piece. By setting the wearable piece, the augmented reality device 500 can clamp the target object. In one embodiment, the wearing piece includes a temple assembly, and the temple assembly is connected to the frame assembly.

[0036] In the implementation manner of the present application, the augmented reality device 500 may also include auxiliary function devices such as a microphone, a voice controller, a camera, etc., and may also include a data line for data transmission with a smart terminal, and may also include smart modules such as a Bluetooth module, a WiFi module, and a positioning module, thereby enabling wireless data transmission with a smart terminal (such as an electronic device, specifically but not limited to a mobile phone, tablet, computer, smart watch, audio and video equipment, navigation equipment, drone, camera, etc.) to achieve information interaction and realize rich interactive effects.

[0037] In the present application, the augmented reality device 500 includes at least two optical waveguides 200, and each optical waveguide 200 is provided with a corresponding projection optical machine 300. In one embodiment of the present application, the augmented reality device 500 includes two optical waveguides 200 and a projection optical machine 300 respectively provided with a corresponding optical waveguide 200. It can be understood that the projection optical machine 300 projects an optical signal to the optical waveguide 200 provided with the projection optical machine 300. Figure 6 , is a cross-sectional schematic diagram of an augmented reality device 500 provided in one embodiment of the present application, wherein a projection optical machine 300 projects an optical signal toward an optical waveguide 200, and after the optical signal is transmitted in the optical waveguide 200, the image information is coupled out to both eyes, and the two eyes receive the image information respectively, and the image information needs to be combined to form a virtual image in front of the two eyes to avoid the appearance of ghosting. Among them, the combined image distance d is the distance from the center of the virtual image to the plane where the two eyes are located. The inventors have found that in different application scenarios, such as when using existing augmented reality devices indoors or outdoors, the combined image distance is fixed and cannot be adjusted. However, when the augmented reality device is used indoors, the fixed combined image distance of the augmented reality device is too large (such as 6m-10m), or when the augmented reality device is used outdoors, the fixed combined image distance of the augmented reality device is too small (such as 1.5m-3m), which can easily cause visual fatigue and affect the comfort of using the augmented reality device.

[0038] Therefore, the present application provides an augmented reality device 500, including an optical waveguide 200, a projection optical machine 300 and an adjustment mechanism 100, wherein the optical waveguide 200 is used to transmit an optical signal incident into the optical waveguide 200 and couple out the optical signal to form image information, the projection optical machine 300 projects the optical signal toward the optical waveguide 200, and the adjustment mechanism 100 is used to adjust the angle between the optical waveguide 200 and the projection optical machine 300, thereby adjusting the combined image distance of the augmented reality device 500.

[0039] Combine the following Figure 6The principle of adjusting the combined image distance of the augmented reality device 500 provided in the present application is described. The angle between the light projected by the projection optical machine 300 toward the optical waveguide 200 and the optical waveguide 200 is α, that is, the angle between the optical waveguide 200 and the projection optical machine 300 is α, that is, the angle between the plane where the optical waveguide 200 is located and the extension direction of the projection optical machine 300 is α, the extension direction of the projection optical machine 300 is the same as the direction of the light it projects, and the angle between the projection optical machine 300 and the direction perpendicular to the optical waveguide 200 is 90°-α; the angle between the optical waveguide 200 and the plane where the eyes are located is β, and β can be 0; the exit angle of the optical signal in the optical waveguide 200 is 90°-β-γ, that is, the angle between the extension direction of the light coupled out of the optical waveguide 200 and the optical waveguide 200 is 90°-β-γ; according to the principle of light propagation of the optical waveguide 200, 90°-α=2β+γ. Therefore, according to the relationship 90°-α=2β+γ, when β does not change, by changing α, γ and 90°-β-γ can be changed. Furthermore, the distance between the user's eyes (i.e., the pupil distance) is fixed, and changing γ can adjust the combined image distance d. In other words, the adjustment mechanism 100 in the augmented reality device 500 provided in the present application can adjust the angle α between the optical waveguide 200 and the projection optical machine 300, thereby adjusting the exit angle 90°-β-γ of the light signal in the optical waveguide 200, that is, changing γ, and then adjusting the combined image distance d. Therefore, the augmented reality device 500 provided in the present application can adjust the combined image distance according to the needs of its application scenario, thereby enhancing the variability of the augmented reality device 500, effectively preventing repeated adjustment of the focal length during use, avoiding visual fatigue, improving the user's sense of use, and facilitating the widespread use of the augmented reality device 500.

[0040] In the related art, since the positions of the optical waveguide 200 and the projection optical machine 300 in the augmented reality device 500 are fixed, the image combination distance cannot be adjusted, and after the augmented reality device 500 is deformed, the angles between the multiple projection optical machines 300 and the corresponding optical waveguides 200 are different and / or the angles between the multiple optical waveguides 200 and the plane where the eyes are located are different, that is, the α and / or β corresponding to the eyes respectively change, resulting in different γ angles of the eyes, and the image combination cannot be achieved. The only way is to replace the components in the augmented reality device 500, which is difficult and costly to repair, and may cause further damage to the augmented reality device 500, which is not conducive to the widespread use of the augmented reality device 500. The augmented reality device 500 provided in the present application can adjust the angle between the optical waveguide 200 and the projection optical machine 300 to achieve the purpose of image combination again, avoid the maintenance of the augmented reality device 500, reduce maintenance costs, and improve the performance of the augmented reality device 500.

[0041] Combine the following Figure 6, the above technical effects of the augmented reality device 500 provided by the present application are explained by taking the combined image of the left eye and the right eye as an example. Before the augmented reality device 500 is deformed, the angle between the light projected toward the corresponding optical waveguide 200 by the projection optical machine 300 corresponding to the left eye and the right eye and the optical waveguide 200 is α, the angle between the plane where the left eye and the right eye are located and the corresponding optical waveguide 200 is β, and the distances from the left eye and the right eye to the virtual image are equal, both are d / cosγ; when the angle between the light projected toward the corresponding optical waveguide 200 by the projection optical machine 300 corresponding to the left eye and the optical waveguide 200 changes from α to α1, and the angle between the light projected toward the corresponding optical waveguide 200 by the projection optical machine 300 corresponding to the right eye and the optical waveguide 200 changes from α to α2, the angles of the left eye and the right eye corresponding to the projection optical machine 300 are adjusted by the adjustment mechanism 100. The angle between the projection light machine 300 and the optical waveguide 200 corresponding to the projection light machine 300 is adjusted to make the adjusted α1 consistent with the adjusted α2, so that the combined image can be achieved again; when the angle between the optical waveguide 200 corresponding to the left eye and the plane where the two eyes are located changes from β to β1, and the angle between the optical waveguide 200 corresponding to the right eye and the plane where the two eyes are located changes from β to β2, the angle between the projection light machine 300 and the optical waveguide 200 corresponding to the left eye is adjusted to α1 through the adjustment mechanism 100, and the angle between the projection light machine 300 and the optical waveguide 200 corresponding to the right eye is adjusted to α2, so that the angle values ​​of 90°-α1-2β1 and 90°-α2-2β2 are consistent, so that the combined image can be achieved again. The above explanations are all based on the example of adjusting the angle between the projection light machine 300 and the optical waveguide 200 corresponding to the left and right eyes at the same time. It is understandable that it is also possible to adjust only the angle between the projection light machine 300 and the optical waveguide 200 corresponding to the left eye or only the angle between the projection light machine 300 and the optical waveguide 200 corresponding to the right eye to achieve the purpose of re-imaging. When the α and β angle values ​​corresponding to the left and right eyes change at the same time, it is also possible to achieve re-imaging by adjusting the angle between the projection light machine 300 and the optical waveguide 200 corresponding to the left and right eyes, which will not be repeated here.

[0042] See also Figure 7 , which is a schematic diagram of the structure of the adjustment mechanism 100 provided in one embodiment of the present application, please refer to Figure 8 , which is a schematic diagram of the structure of the adjustment mechanism 100 and the projection optical machine 300 provided in one embodiment of the present application, please refer to Fig. 9 ,for Figure 8The figure shows an exploded schematic diagram of the adjustment mechanism 100 and the projection optical machine 300, wherein the adjustment mechanism 100 includes a first adjustment component 110 and a second adjustment component 120, wherein the first adjustment component 110 is connected to the optical waveguide 200, and the projection optical machine 300 is installed on the second adjustment component 120, and the second adjustment component 120 is rotatably connected to the first adjustment component 110, so that the projection optical machine 300 can rotate relative to the optical waveguide 200; in this way, the angle between the optical waveguide 200 and the projection optical machine 300 can be adjusted, thereby adjusting the exit angle of the optical signal in the optical waveguide 200, so as to achieve the purpose of adjusting the combined image distance of the augmented reality device 500. In other words, the first adjustment component 110 is sleeved on the outer periphery of the second adjustment component 120, and the projection optical machine 300 is installed on the second adjustment component 120, and the second adjustment component 120 and the first adjustment component 110 can rotate relative to each other, thereby driving the projection optical machine 300 to rotate relative to the optical waveguide 200 and changing the combined image distance. Please refer to Fig.10 , which is another embodiment of the present application. Figure 1 The exploded schematic diagram of the augmented reality device 500 is shown in FIG. 1 , wherein the projection optical machine 300 is mounted on the adjustment mechanism 100 , and the adjustment mechanism 100 adjusts the angle between the optical waveguide 200 and the projection optical machine 300 to adjust the exit angle of the optical signal in the optical waveguide 200 , thereby adjusting the combined image distance of the augmented reality device 500 .

[0043] See also Fig.11 , which is a cross-sectional schematic diagram of an augmented reality device 500 provided in one embodiment of the present application, please refer to Fig.12 ,for Fig.11An enlarged view of the dotted area, in which the first adjustment component 110 is installed on the surface of the optical waveguide 200, so that the first adjustment component 110 is directly connected to the optical waveguide 200. The projection optical machine 300 is arranged on the second adjustment component 120. When the second adjustment component 120 rotates relative to the first adjustment component 110, the second adjustment component 120 can drive the projection optical machine 300 to move, so that the projection optical machine 300 rotates relative to the optical waveguide 200 to change the combined image distance. In one embodiment of the present application, the adjustment mechanism 100 can be connected to the bearing mechanism 400. In one embodiment of the present application, the first adjustment component 110 is installed on the bearing mechanism 400, and the bearing mechanism 400 bears the optical waveguide 200, so that the first adjustment component 110 is indirectly connected to the optical waveguide 200. The projection optical machine 300 is arranged on the second adjustment component 120. When the second adjustment component 120 rotates relative to the first adjustment component 110, the second adjustment component 120 can drive the projection optical machine 300 to move, so that the projection optical machine 300 rotates relative to the supporting mechanism 400, and then the projection optical machine 300 moves relative to the optical waveguide 200 supported by the supporting mechanism 400, so as to change the combined image distance. In one embodiment, the supporting mechanism 400 includes a frame assembly, and the first adjustment component 110 can be installed in the frame assembly. In another embodiment, the supporting mechanism 400 includes a temple assembly, and the first adjustment component 110 can be installed in the temple assembly.

[0044] In one embodiment of the present application, the first adjustment component 110 includes a first mounting member 111 and a first adjustment member 112, the first mounting member 111 is connected to the optical waveguide 200, and the first adjustment member 112 is carried by the first mounting member 111. In other words, the position between the first mounting member 111 and the optical waveguide 200 is relatively fixed, so that when the second adjustment component 120 rotates relative to the first adjustment component 110, the angle between the optical waveguide 200 and the projection optical machine 300 can be changed, thereby changing the combined image distance. In one embodiment of the present application, the first mounting member 111 is mounted on the surface of the optical waveguide 200, so that the first mounting member 111 is directly connected to the optical waveguide 200. In another embodiment of the present application, the first mounting member 111 is mounted on a bearing mechanism 400, such as a frame assembly, a temple assembly, etc., so that the first mounting member 111 is indirectly connected to the optical waveguide 200. Specifically, the first mounting member 111 can be connected to the optical waveguide 200, the bearing mechanism 400, etc. through an adhesive (such as glue, etc.).

[0045] In one embodiment of the present application, the second adjustment component 120 includes a second mounting member 121 and a second adjustment member 122, and the second adjustment member 122 and the projection optical machine 300 are both mounted on the second mounting member 121, so that the projection optical machine 300 moves with the second mounting member 121, changes the angle between the optical waveguide 200 and the projection optical machine 300, and thus changes the combined image distance. In other words, the positions of the projection optical machine 300 and the second mounting member 121 are relatively fixed, and can move with the rotation of the second mounting member 121. In one embodiment of the present application, the second mounting member 121 can be inserted into the first mounting member 111 and can be rotatably connected to the first mounting member 111, so that the second adjustment component 120 is rotatably connected to the first adjustment component 110. Of course, the second mounting member 121 and the first mounting member 111 can also have other settings, as long as the second adjustment component 120 is rotatably connected to the first adjustment component 110.

[0046] See also Fig.13 , provided in one embodiment of the present application Figure 7 The cross-sectional diagram of the adjustment mechanism in the BB direction is shown, and please refer to Fig.14 , provided in one embodiment of the present application Fig.13 In the enlarged view of the dotted line area, the first adjustment component 110 includes a first mounting member 111 and a first adjustment member 112. The first mounting member 111 is connected to the optical waveguide 200, and the first adjustment member 112 is carried by the first mounting member 111; the second adjustment component 120 includes a second mounting member 121 and a second adjustment member 122. The second mounting member 121 is inserted into the first mounting member 111 and is rotatably connected to the first mounting member 111. The second adjustment member 122 and the projection optical machine 300 are both installed on the second mounting member 121. It can be understood that Figure 8 As shown, the first adjusting member 112 can be carried on the side of the first mounting member 111 facing the second mounting member 121, or on the top or bottom of the first mounting member 111; the second adjusting member 122 can be carried on the side of the second mounting member 121 facing the first mounting member 111, or on the top or bottom of the second mounting member 121. In one embodiment of the present application, Fig.14 As shown, the first adjusting member 112 is disposed on the surface of the first mounting member 111, and the second adjusting member 122 is disposed on the surface of the second mounting member 121. Fig.15 , which is another embodiment of the present application. Fig.13In the enlarged view of the dotted area, at least part of the first adjusting member 112 is arranged inside the first mounting member 111, and at least part of the second adjusting member 122 is arranged inside the second mounting member 121. Specifically, the first mounting member 111 and / or the second mounting portion are provided with a through hole or a groove, and the first adjusting member 112 and / or the second adjusting member 122 are arranged in the through hole or the groove. The positional relationship between the first adjusting member 112 and the first mounting member 111, and the positional relationship between the second adjusting member 122 and the second mounting member 121 can be the same, such as both are arranged on the surface of the mounting member, or both are arranged inside the mounting member, or they can be different, such as one is arranged on the surface of the mounting member, and the other is arranged inside the mounting member, etc.; the shape, size, etc. of the first adjusting member 112 and the second adjusting member 122 can be selected as needed.

[0047] In one embodiment of the present application, when one of the first adjustment member 112 and the second adjustment member 122 is loaded with an electrical signal, the first adjustment member 112 and the second adjustment member 122 cooperate to drive the second adjustment component 120 to rotate relative to the first adjustment component 110, thereby adjusting the angle between the optical waveguide 200 and the projection optical machine 300. In other words, when one of the first adjustment member 112 and the second adjustment member 122 is loaded with an electrical signal, the first adjustment member 112 and the second adjustment member 122 interact with each other, causing the second adjustment component 120 to rotate relative to the first adjustment component 110, while the positions of the projection optical machine 300 and the second adjustment component 120 are relatively fixed, and the positions of the optical waveguide 200 and the first adjustment component 110 are relatively fixed, and the rotation of the second adjustment component 120 relative to the first adjustment component 110 causes the angle between the projection optical machine 300 and the optical waveguide 200 to change, thereby changing the combined image distance.

[0048] See also Fig.16 , which is another embodiment of the present application. Figure 7The schematic cross-sectional view of the adjustment mechanism shown in the BB direction shows that the first adjustment member 112 includes a first magnet 1121, the second adjustment member 122 includes a second magnet 1221, at least one of the first magnet 1121 and the second magnet 1221 is an electromagnet, the first magnet 1121 and the second magnet 1221 are arranged opposite to each other, and when the electromagnet is loaded with an electrical signal, an attractive force or a repulsive force is generated between the first magnet 1121 and the second magnet 1221, thereby adjusting the angle between the optical waveguide 200 and the projection optical machine 300. Specifically, the first magnet 1121 can be an electromagnet, and the second magnet 1221 can be an electromagnet or a permanent magnet, so that after the electromagnet is loaded with an electrical signal, an attractive force or a repulsive force is generated between the first magnet 1121 and the second magnet 1221; or, the first magnet 1121 can be a permanent magnet, and the second magnet 1221 is an electromagnet, so that after the electromagnet is loaded with an electrical signal, an attractive force or a repulsive force is generated between the first magnet 1121 and the second magnet 1221. Therefore, in one embodiment of the present application, the first magnet 1121 and the second magnet 1221 are selected from at least one of a permanent magnet and an electromagnet, and at least one of the first magnet 1121 and the second magnet 1221 is an electromagnet, so that when the electromagnet is loaded with an electrical signal, an attractive force or a repulsive force is generated between the first magnet 1121 and the second magnet 1221. In other words, after the electromagnet is loaded with an electrical signal, a magnetic field is generated, and the magnetic field forces between the electromagnets interact with each other or the magnetic field forces between the electromagnet and the permanent magnet interact with each other, thereby generating an attractive force or a repulsive force. Under the action of the attractive force or the repulsive force between the first adjustment member 112 and the second adjustment member 122, the second adjustment component 120 rotates relative to the first adjustment component 110, changing the angle between the projection optical machine 300 and the optical waveguide 200, thereby adjusting the combined image distance. It is understandable that when the first magnet 1121 and the second magnet 1221 are both permanent magnets, the magnitude of the force between the two is fixed, and it is still impossible to adjust the combined image distance as needed. The augmented reality device 500 provided in the present application can change the magnitude and even direction of the force between the first adjustment member 112 and the second adjustment member 122 by adjusting the strength of the electrical signal, thereby obtaining a combined image distance of different requirements. The augmented reality device 500 provided in the present application can adjust the angle between the optical waveguide 200 and the projection optical machine 300 through the interaction between the first adjustment member 112 and the second adjustment member 122, such as through the interaction between the magnets, thereby adjusting the exit angle of the optical signal in the optical waveguide 200 and adjusting the combined image distance of the augmented reality device 500.

[0049] See also Fig.17 , which is another embodiment of the present application. Figure 7The schematic cross-sectional view of the adjustment mechanism shown in the BB direction shows that the first adjustment member 112 includes a first magnet 1121 and a fourth magnet 1122 spaced apart from the first magnet 1121, the second adjustment member 122 includes a second magnet 1221 and a third magnet 1222 spaced apart from the second magnet 1221, and the third magnet 1222 and the fourth magnet 1122 are arranged opposite to each other. In one embodiment of the present application, the first magnet 1121, the second magnet 1221, the third magnet 1222 and the fourth magnet 1122 include permanent magnets and at least one electromagnet. That is to say, at least one of the first magnet 1121, the second magnet 1221, the third magnet 1222 and the fourth magnet 1122 contains an electromagnet, and the rest can be permanent magnets; by controlling the electrical signal loaded by the electromagnet, the force generated between the first magnet 1121 and the second magnet 1221 and the force generated between the third magnet 1222 and the fourth magnet 1122 can be controlled to adjust the angle between the projection optical machine 300 and the optical waveguide 200. Of course, the first magnet 1121, the second magnet 1221, the third magnet 1222 and the fourth magnet 1122 can all be electromagnets. In one embodiment of the present application, when the electromagnet is loaded with an electrical signal, the force generated between the first magnet 1121 and the second magnet 1221 is opposite to the force generated between the third magnet 1222 and the fourth magnet 1122; in this way, the angle between the optical waveguide 200 and the projection optical machine 300 can be adjusted to achieve the purpose of adjusting the combined image distance. It can be understood that the above-mentioned force is an attractive force or a repulsive force between magnetic fields, that is, when an attractive force is generated between the first magnet 1121 and the second magnet 1221, a repulsive force is generated between the third magnet 1222 and the fourth magnet 1122, and when a repulsive force is generated between the first magnet 1121 and the second magnet 1221, an attractive force is generated between the third magnet 1222 and the fourth magnet 1122, so that the second mounting member 121 is subjected to a force in the same direction or approximately in the same direction, so that the angle between the projection optical machine 300 and the optical waveguide 200 can be adjusted to change the combined image distance. In one embodiment of the present application, after the electromagnet is loaded with an electrical signal, the connecting line of all the magnetic poles in the first magnet 1121, the second magnet 1221, the third magnet 1222 and the fourth magnet 1122 is a straight line. That is to say, the lines connecting the south pole to the north pole of the first magnet 1121, the second magnet 1221, the third magnet 1222 and the fourth magnet 1122 are the same straight line, thereby ensuring that the force generated between the first magnet 1121 and the second magnet 1221 and the force generated between the third magnet 1222 and the fourth magnet 1122 act completely in the direction of rotation of the projection light machine 300, which is more conducive to the adjustment of the combined image distance.

[0050] The projection optical machine 300 rotates from a first position point to a second position point relative to the optical waveguide 200, the first position point corresponds to a third position point on the optical waveguide 200, the second position point corresponds to a fourth position point on the optical waveguide 200, and the direction from the third position point to the fourth position point is the rotation direction of the projection optical machine 300 relative to the optical waveguide 200. When the augmented reality device 500 is in use, the direction of the line connecting the two eyes is the first direction, and the first direction also refers to the direction of the line connecting the centers of the out-coupling regions 212 on the two optical waveguides 200, and can also refer to the direction of the line connecting the centers of the in-coupling regions 211 on the two optical waveguides 200. In one embodiment of the present application, the rotation direction of the projection optical machine 300 relative to the optical waveguide 200 is not perpendicular to the first direction, so that the exit angle of the optical signal in the optical waveguide 200 can be adjusted after adjusting the angle between the optical waveguide 200 and the projection optical machine 300. In one embodiment of the present application, the rotation direction of the projection optical machine 300 relative to the optical waveguide 200 is parallel to the first direction, so that the exit angle of the optical signal in the optical waveguide 200 can be adjusted more simply and conveniently by adjusting the angle between the optical waveguide 200 and the projection optical machine 300. In one embodiment, the direction of the force of the interaction between the first adjustment member 112 and the second adjustment member 122 is parallel to the first direction. Specifically, for example, the connection line of the first magnet 1121 and the second magnet 1221 is the first direction, so as to ensure that the direction of the force of the interaction between the first adjustment member 112 and the second adjustment member 122 is parallel to the first direction; for another example, the connection line of all the magnetic poles in the first magnet 1121, the second magnet 1221, the third magnet 1222 and the fourth magnet 1122 is a straight line, and the direction of the straight line is parallel to the first direction, so as to ensure that after the projection optical machine 300 rotates relative to the optical waveguide 200, the exit angle of the optical signal in the optical waveguide 200 can be changed, thereby adjusting the combined image distance.

[0051] In one embodiment of the present application, the adjustment mechanism 100 also includes a third adjustment component 130, which is connected to the first adjustment component 110 and the second adjustment component 120. When the second adjustment component 120 is rotated to a preset position relative to the first adjustment component 110, the third adjustment component 130 is used to lock the second adjustment member 122. After the first adjustment component 110 and the second adjustment component 120 cooperate to drive the projection optical machine 300 to rotate relative to the optical waveguide 200, when the second adjustment component 120 rotates to a preset position relative to the first adjustment component 110, the angle between the projection optical machine 300 and the optical waveguide 200 reaches the preset angle. At this time, the emission angle of the light signal in the optical waveguide 200 reaches the preset emission angle, and the combined image distance reaches the preset combined image distance. The third adjustment component 130 locks the second adjustment member 122 to fix the relative position of the second adjustment component 120 and the first adjustment component 110, thereby fixing the angle between the projection optical machine 300 and the optical waveguide 200, so that the preset combined image distance is obtained when the augmented reality device 500 is used, meeting the use requirements of the augmented reality device 500. Please refer to Fig.18 , provided in one embodiment of the present application Figure 7 The cross-sectional schematic diagram of the adjustment mechanism in the CC direction shown in FIG. 1 shows that the adjustment mechanism 100 includes a first adjustment component 110, a second adjustment component 120 and a third adjustment component 130, and the third adjustment component 130 is connected to the first adjustment component 110 and the second adjustment component 120. In one embodiment of the present application, as shown in FIG. Fig.18 As shown, the third adjustment component 130 is carried by the first adjustment component 110 and connected to the second adjustment component 120. Specifically, the third adjustment component 130 can be installed on the surface of the first adjustment component 110, or the first adjustment component 110 can have a receiving groove, and the third adjustment component 130 is arranged in the receiving groove. In one embodiment of the present application, the second mounting member 121 has a mounting axis facing the first adjustment component 110, the third adjustment component 130 is carried in the first adjustment component 110, and the mounting axis of the second mounting member 121 is carried by the third adjustment component 130, so that the third adjustment component 130 is connected to the first adjustment component 110 and the second adjustment component 120. Please refer to Fig.19 , provided in one embodiment of the present application Fig.18In the enlarged view of the dotted area, the third adjustment component 130 includes a third mounting member 131 and a third adjustment member 132, and the third mounting member 131 and the third adjustment member 132 cooperate to achieve the effect of locking the second adjustment member 122. In one embodiment of the present application, the third mounting member 131 connects the first adjustment component 110 and the second adjustment component 120, so that the second adjustment component 120 can rotate relative to the first adjustment component 110 around the third mounting member 131. In other words, when the first adjustment component 110 and the second adjustment component 120 cooperate, the third mounting member 131 can drive the second adjustment component 120 to rotate relative to the first adjustment component 110, and the second adjustment component 120 rotates around the third mounting member 131. In one embodiment of the present application, the third adjustment component 130 is arranged on opposite sides of the second adjustment component 120, so as to better drive the second adjustment component 120 to move, so that the second adjustment component 120 can only rotate in the direction around the third mounting member 131, so as to better adjust the combined image distance. In one embodiment of the present application, the connection line of the third adjustment components 130 on opposite sides of the second adjustment component 120 is perpendicular to the first direction, so as to better adjust the combined image distance. In one embodiment of the present application, when the third adjustment member 132 is not loaded with an electrical signal, the third adjustment member 132 abuts against the third mounting member 131, so that the second adjustment component 120 is fixed at a preset position. When the third adjustment member 132 is loaded with an electrical signal, the third adjustment member 132 moves and is spaced apart from the third mounting member 131, so that the second adjustment component 120 can rotate relative to the first adjustment component 110. When the third adjusting member 132 is not loaded with an electrical signal, the third adjusting member 132 abuts against the third mounting member 131, and the rotation of the third mounting member 131 is subject to resistance from the third adjusting member 132, thereby limiting the movement of the second adjusting component 120, thereby achieving the purpose of fixing the second adjusting member 122, thereby fixing the angle between the projection optical machine 300 and the optical waveguide 200; when the third adjusting member 132 is loaded with an electrical signal, the third adjusting member 132 moves and is isolated from the third mounting member 131, and does not generate resistance to the rotation of the third mounting member 131, thereby enabling the third mounting member 131 to drive the second adjusting component 120 to rotate relative to the first adjusting component 110, so as to change the angle between the optical waveguide 200 and the projection optical machine 300, thereby changing the combined image distance.

[0052] In one embodiment of the present application, the third adjusting member 132 includes a limiting member and a driving member. The limiting member includes a retractable elastic portion and a limiting portion connected to the elastic portion. The limiting portion abuts against the third mounting member 131. The driving member is used to drive the elastic portion to contract when the third adjusting member 132 is loaded with an electrical signal, so as to separate the limiting portion from the third mounting member 131. When the third adjusting member 132 is loaded with an electrical signal, the driving member generates a driving force to drive the elastic part to contract, and the contracted elastic part drives the limiting part to move in a direction away from the third mounting member 131, and the limiting part is spaced apart from the third mounting member 131. At this time, the third mounting member 131 can drive the second adjusting component 120 to rotate relative to the first adjusting component 110, thereby adjusting the combined image distance; when the electrical signal is removed, the contracted elastic part is extended under the action of its own resilience, and the extended elastic part drives the limiting part to move in the direction of the third mounting member 131, so that the limiting part abuts against the third mounting part, achieving the purpose of fixing the second adjusting member 122, thereby fixing the angle between the projection optical machine 300 and the optical waveguide 200. In one embodiment of the present application, the driving member can be loaded with an electrical signal to drive the elastic part to contract. In the present application, the elastic part can be but is not limited to a spring, the driving part can be but is not limited to an electromagnetic switch, and the limiting part can be but is not limited to a structure that can fix the third mounting part 131 when abutting against the third mounting part 131. Specifically, the roughness of the surface where the limiting part abuts against the third mounting part 131 is relatively high, so as to better fix the second adjusting part 122. The specific roughness can be selected as needed and is not limited to this.

[0053] In one embodiment of the present application, the third mounting member 131 may include a receiving member, the receiving member may be carried on the first adjustment component 110, and the second adjustment component 120 is carried in the receiving member. In one embodiment of the present application, the mounting shaft of the second mounting member 121 is arranged in the receiving member. In another embodiment of the present application, the third mounting member 131 may include a rotating member, the rotating member is carried on the first adjustment component 110, the rotating member is arranged between the receiving member and the first adjustment component 110, one end of the rotating member is connected to the first adjustment component 110, and the other end is connected to the second adjustment component 120, when the third adjustment member 132 is loaded with an electrical signal, the rotating member drives the receiving member and the second adjustment component 120 to rotate relative to the first adjustment component 110. That is, when the third adjustment member 132 is loaded with an electrical signal, the rotating member can move and drive the second adjustment component 120 to rotate relative to the first adjustment component 110, at which time the third adjustment component 130 can not only play the role of fixing the second adjustment component 120 when reaching the preset position, but also provide a force for the movement of the second adjustment component 120. In the present application, the direction in which the third adjustment component 130 drives the second adjustment component 120 to move can be opposite to or the same as the direction of the force between the first adjustment component 110 and the second adjustment component 120. For example, when the direction in which the third adjustment component 130 drives the second adjustment component 120 to move is opposite to the direction of the force between the first adjustment component 110 and the second adjustment component 120, the third adjustment component 130 will generate a force on the second adjustment component 120, and a force will be generated between the first adjustment component 110 and the second adjustment component 120, and the second adjustment component 120 will move in the direction of greater force. In one embodiment of the present application, the rotating member includes at least one of a spring structure and a torsion spring structure. The spring structure and the torsion spring structure have opposite free ends and fixed ends, wherein the fixed end can be connected to the first adjustment component 110, and the free end is connected to the second adjustment component 120, thereby driving the second adjustment component 120 to rotate; specifically, the spring structure or the torsion spring structure can be sleeved on the surface of the receiving member. In one embodiment, the receiving member may be a bearing; and the spring structure or the torsion spring structure may be sleeved on the surface of the bearing.

[0054] In one embodiment of the present application, the adjustment mechanism 100 also includes a power supply component, which is electrically connected to at least one of the first adjustment component 110 and the second adjustment component 120. The power supply component can be used to load an electrical signal. Specifically, the power supply component can be electrically connected to an electromagnet to load an electrical signal to the electromagnet. For example, the current intensity and current direction in the loaded electrical signal can be controlled by the power supply component, so that the magnetic field intensity and force direction generated by the electromagnet can be controlled. Of course, the magnetic field intensity can also be changed by controlling the number of turns of the electromagnet coil. In one embodiment of the present application, the power supply component can also be electrically connected to the third adjustment component 130. Specifically, the power supply component can be electrically connected to the third adjustment member 132 or the driving member in the third adjustment member 132. In one embodiment of the present application, in the augmented reality device 500 provided by the present application, an electrical signal is loaded through the power supply component, the third adjustment member 132 moves in a direction away from the third mounting member 131, and a force is generated between the first adjustment member 112 and the second adjustment member 122, so that the second adjustment member 120 can rotate around the third adjustment member 130 relative to the first adjustment member 110, thereby adjusting the angle between the optical waveguide 200 and the projection optical machine 300, and adjusting the combined image distance; when the combined image distance reaches a preset distance, the power supply component stops loading the electrical signal, the third adjustment member 132 moves toward the third mounting member 131 and abuts against the third mounting member 131, thereby fixing the second adjustment member 120, and at the same time, the force generated between the first adjustment member 112 and the second adjustment member 122 changes, but due to the fixation of the second adjustment member 120, the first adjustment member 112 and the second adjustment member 122 no longer rotate relative to each other, and the angle between the optical waveguide 200 and the projection optical machine 300 is maintained, thereby maintaining the preset distance. It can be understood that the above is only one implementation method of adjusting the combined image distance of the augmented reality device 500 provided in the present application. The augmented reality device 500 may also have multiple methods of adjusting the combined image distance, which have been mentioned in the above description and will not be repeated here.

[0055] In one embodiment of the present application, the augmented reality device 500 further includes a processor. The processor may process, but is not limited to, information such as the angle between the optical waveguide 200 and the projection optical machine 300 in the augmented reality device 500, the emission angle of the optical signal in the optical waveguide 200, the combined image distance, the direction and magnitude of the electromagnet current, and the magnitude of the attractive force or repulsive force between the first adjustment member 112 and the second adjustment member 122. In the present application, the processor may transmit signals to the terminal, and the terminal controls the processor, thereby controlling the adjustment mechanism 100, so that the combined image distance of the augmented reality device 500 may be adjusted more intelligently.

[0056] The above is a detailed introduction to the contents provided in the implementation mode of the present application. This article explains and illustrates the principles and implementation modes of the present application. The above explanation is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. An augmented reality device, characterized in that: include: An optical waveguide, the optical waveguide being used to transmit an optical signal incident into the optical waveguide and couple out the optical signal to form image information; A projection optical machine, the projection optical machine projects the optical signal toward the optical waveguide; as well as An adjustment mechanism is used to adjust the angle between the optical waveguide and the projection optical machine, thereby adjusting the image distance of the augmented reality device.

2. The augmented reality device according to claim 1, wherein: The adjustment mechanism includes a first adjustment component and a second adjustment component, the first adjustment component is connected to the optical waveguide, the projection light machine is installed on the second adjustment component, and the second adjustment component is rotatably connected to the first adjustment component so that the projection light machine can rotate relative to the optical waveguide.

3. The augmented reality device according to claim 2, wherein: The first adjustment component includes a first mounting member and a first adjustment member, the first mounting member is connected to the optical waveguide, and the first adjustment member is carried by the first mounting member; The second adjustment component includes a second mounting member and a second adjustment member, the second mounting member is inserted through the first mounting member and is rotatably connected to the first mounting member, and the second adjustment member and the optical projection machine are both mounted on the second mounting member; When one of the first adjusting member and the second adjusting member is loaded with an electrical signal, the first adjusting member and the second adjusting member cooperate to drive the second adjusting component to rotate relative to the first adjusting component, thereby adjusting the angle between the optical waveguide and the projection optical machine.

4. The augmented reality device according to claim 3, wherein: The first adjusting member includes a first magnet, the second adjusting member includes a second magnet, at least one of the first magnet and the second magnet is an electromagnet, and the first magnet and the second magnet are arranged opposite to each other. When the electromagnet is loaded with the electrical signal, an attractive force or a repulsive force is generated between the first magnet and the second magnet, thereby adjusting the angle between the optical waveguide and the projection optical engine.

5. The augmented reality device according to claim 4, wherein: The second adjusting member further includes a third magnet spaced apart from the second magnet, the first adjusting member further includes a fourth magnet spaced apart from the first magnet, and the third magnet and the fourth magnet are disposed opposite to each other.

6. The augmented reality device according to claim 5, characterized in that The first magnet, the second magnet, the third magnet and the fourth magnet include a permanent magnet and at least one electromagnet. When the electromagnet is loaded with the electrical signal, the line connecting all the magnetic poles of the first magnet, the second magnet, the third magnet and the fourth magnet is a straight line, and the force generated between the first magnet and the second magnet is opposite to the force generated between the third magnet and the fourth magnet.

7. The augmented reality device according to any one of claims 2 to 6, characterized in that: The adjustment mechanism also includes a third adjustment component, which is connected to the first adjustment component and the second adjustment component. When the second adjustment component is rotated to a preset position relative to the first adjustment component, the third adjustment component is used to lock the second adjustment component.

8. The augmented reality device according to claim 7, wherein: The third adjustment component includes a third mounting member and a third adjustment member, wherein the third mounting member connects the first adjustment component and the second adjustment component so that the second adjustment component can rotate relative to the first adjustment component around the third mounting member. When the third adjusting member is not loaded with an electrical signal, the third adjusting member abuts against the third mounting member, so that the second adjusting component is fixed at the preset position. When the third adjusting member is loaded with an electrical signal, the third adjusting member moves and is spaced apart from the third mounting member, so that the second adjusting component can rotate relative to the first adjusting component.

9. The augmented reality device according to claim 8, wherein: The third adjusting member includes a limiting member and a driving member, the limiting member includes a retractable elastic portion and a limiting portion connected to the elastic portion, the limiting portion abuts against the third mounting member, and the driving member is used to drive the elastic portion to contract when the third adjusting member is loaded with the electrical signal, so as to space the limiting portion from the third mounting member.

10. The augmented reality device according to claim 8, wherein: The third mounting member includes a receiving member and a rotating member, the receiving member and the rotating member are carried by the first adjusting component, and the rotating member is arranged between the receiving member and the first adjusting component. One end of the rotating member is connected to the first adjusting component, and the other end is connected to the second adjusting component. When the third adjusting member is loaded with the electrical signal, the rotating member drives the receiving member and the second adjusting component to rotate relative to the first adjusting component.

11. The augmented reality device according to any one of claims 2 to 10, characterized in that: The regulating mechanism further includes a power supply component, and the power supply component is electrically connected to at least one of the first regulating component and the second regulating component.

12. The augmented reality device according to claim 1, wherein: The augmented reality device includes at least two optical waveguides, and each optical waveguide is correspondingly provided with a projection optical machine.

13. The augmented reality device according to claim 12, wherein: The optical waveguide has an outcoupling region, and the center line direction of the outcoupling regions of the two optical waveguides is a first direction. The adjustment mechanism is used to rotate the projection light engine relative to the optical waveguide to adjust the angle between the optical waveguide and the projection light engine. The direction in which the projection light engine rotates relative to the optical waveguide is parallel to the first direction.

14. The augmented reality device according to claim 1, wherein: The augmented reality device further comprises a bearing mechanism connected to the adjustment mechanism, wherein the bearing mechanism comprises a frame assembly and a temple assembly connected to the frame assembly, and the optical waveguide is carried in the frame assembly.

Images