Wearable equipment and wearable device

By using a symmetrical rotational symmetry optical lens design, the problem of non-common mode in VR glasses lens processing is solved, simplifying lens manufacturing and enabling high-precision assembly, thereby improving the display effect and overall performance of VR glasses.

CN120848015APending Publication Date: 2025-10-28WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202410525467.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-04-28
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

In the existing technology, VR glasses lenses are not processed in a common mode, which makes manufacturing and assembly difficult, and the matching accuracy is not ideal, which affects the display effect.

Method used

The first and second optical lenses are symmetrically arranged, and through rotationally symmetrical design and common mold manufacturing, the lens preparation process is simplified and the preparation and assembly accuracy are improved.

Benefits of technology

It achieves simplified manufacturing and high-precision assembly of VR glasses lenses, improving display effects and overall performance.

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Abstract

The embodiment of the invention provides wearable glasses and wearable equipment. The optical lens assembly at least comprises a lens cone, a first optical lens and a second optical lens, the first optical lens is correspondingly arranged in the first lens cone, the second optical lens is correspondingly arranged in the second lens cone, the first lens cone and the second lens cone are provided with an installation center line, and the installation center line is provided with a rotation center. The first optical lens and the second optical lens are respectively provided with a first special-shaped cutting edge and a second special-shaped cutting edge, the first special-shaped cutting edge is symmetrically arranged relative to the axis, and the second special-shaped cutting edge is symmetrically arranged relative to the axis. The first optical lens and the second optical lens are subjected to special-shaped cutting treatment, so that the two optical lenses and the lens cone adopt a common-mode design, the manufacturing difficulty is effectively simplified, the preparation precision of different lenses is improved, and the purpose of improving the display effect and the comprehensive performance of the wearable device is achieved.
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Description

Technical Field

[0001] This invention relates to the field of manufacturing technology for virtual wearable glasses, and more particularly to a wearable device and wearable apparatus. Background Technology

[0002] With the continuous upgrading of electronic products, people have put forward higher requirements for the quality and performance of electronic glasses in order to enhance the user experience.

[0003] Virtual Reality (VR), as an emerging display technology, provides users with an immersive experience, further enhancing human-computer interaction. With the development of VR technology, high immersion, a large field of view (FOV), and a large exit pupil distance have become mainstream trends. To manufacture high-performance VR glasses, lenses of suitable size and shape are needed to match the glasses. However, due to limitations imposed by facial features, human eye characteristics, and manufacturing precision requirements, existing technologies for manufacturing VR lenses in VR optical systems suffer from several problems. These include non-compatibility between different lenses during processing, high manufacturing difficulty and cost, and difficulties in assembling different lenses after manufacturing, resulting in unsatisfactory matching accuracy. These issues hinder further improvements in the display effect and overall performance of VR glasses.

[0004] In summary, existing technologies for manufacturing VR glasses suffer from several technical problems, including non-common-mode lens processing, high lens manufacturing difficulty, high assembly difficulty, and unsatisfactory matching accuracy, which hinder further improvement in the display effect of VR glasses. Summary of the Invention

[0005] This invention provides a wearable device and wearable assembly to effectively improve the problems in the prior art of non-co-molding of lenses and lens barrels, high difficulty in lens manufacturing and assembly during the preparation of VR glasses, thereby effectively improving the display effect of VR glasses.

[0006] To address the aforementioned technical problems, a first aspect of this invention provides a wearable device, the wearable device comprising at least:

[0007] Fixed bracket;

[0008] The lens barrel is mounted on the fixed bracket. The lens barrel includes a first lens barrel and a second lens barrel arranged symmetrically. The axis of symmetry between the first lens barrel and the second lens barrel is set as the mounting center line. A rotation center is defined on the mounting center line.

[0009] A first optical lens is disposed inside the first lens barrel, and the first optical lens has a first axis of symmetry;

[0010] A second optical lens is disposed inside the second lens barrel, and the second optical lens has a second axis of symmetry;

[0011] The first optical lens and the second optical lens are arranged symmetrically with respect to the rotation center. The first optical lens has a first irregularly shaped cut edge on the side facing the rotation center, and the second optical lens has a second irregularly shaped cut edge on the side facing the rotation center. The first irregularly shaped cut edge is symmetrical with respect to the first axis of symmetry, and the second irregularly shaped cut edge is symmetrical with respect to the second axis of symmetry. The extensions of the first axis of symmetry and the second axis of symmetry intersect at the rotation center.

[0012] According to one embodiment of the present invention, both the first axis of symmetry and the second axis of symmetry are inclined relative to the mounting centerline;

[0013] The first axis of symmetry and the straight line corresponding to the center of rotation have a first angle with the mounting center line, and the second axis of symmetry and the straight line corresponding to the center of rotation have a second angle with the mounting center line;

[0014] Wherein, the first included angle is the same as the second included angle.

[0015] According to one embodiment of the present invention, the first included angle and the second included angle are set to 15° to 70°.

[0016] According to one embodiment of the present invention, the first optical lens further includes a first circular side connected to the first irregularly shaped cut edge, and the second optical lens further includes a second circular side connected to the second irregularly shaped cut edge;

[0017] Wherein, the first axis of symmetry passes through the center of the circle corresponding to the first circular side, and the second axis of symmetry passes through the center of the circle corresponding to the second circular side.

[0018] According to one embodiment of the present invention, the arc length corresponding to the first circular side is the same as the arc length corresponding to the second circular side, and the radian of the arc length corresponding to the first circular side and the radian of the arc length corresponding to the second circular side are set to 1.3 rad to 1.9 rad.

[0019] According to one embodiment of the present invention, the first lens barrel and the second lens barrel are arranged symmetrically with respect to the rotation center.

[0020] According to one embodiment of the present invention, the first irregularly shaped cut edge is set as an arc transition edge, the second irregularly shaped cut edge is set as an arc transition edge, and the arc corresponding to the first irregularly shaped cut edge is smaller than the arc corresponding to the first circular side edge, and the arc corresponding to the second irregularly shaped cut edge is smaller than the arc corresponding to the second circular side edge.

[0021] According to one embodiment of this application, the first irregularly shaped cut edge further includes a first arc edge near the mounting center line and a second arc edge away from the mounting center line;

[0022] Wherein, the radian corresponding to the first arc edge is greater than or equal to the radian corresponding to the second arc edge.

[0023] According to one embodiment of this application, the fixing bracket includes a limiting groove, a first limiting part disposed in the limiting groove, and a second limiting part disposed on one side of the first limiting part;

[0024] The side of the lens barrel is disposed in the limiting groove, and the two ends of the first irregular cut edge are respectively engaged with the first limiting part and the second limiting part, and the two ends of the second irregular cut edge are respectively engaged with the first limiting part and the second limiting part.

[0025] According to a second aspect of the embodiments of this application, a wearable device is also provided, including the wearable device provided in the embodiments of this application, and a display screen, wherein the display screen is disposed on the side of the fixed bracket away from the lens barrel.

[0026] The beneficial effects of this invention are as follows: Compared with the prior art, this application provides a wearable glasses and a wearable device. It includes at least a lens barrel, a first optical lens, and a second optical lens. The first optical lens is disposed within a first lens barrel, and the second optical lens is disposed within a second lens barrel. In this application, the first and second optical lenses are irregularly shaped, resulting in an axially symmetrical shape for the optical lenses themselves and a rotationally symmetrical arrangement for the left and right eyes. This allows for a common-mode design between the two optical lenses, effectively simplifying manufacturing and improving the precision of different lens preparations, thereby improving the display effect and overall performance of the wearable device. Attached Figure Description

[0027] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a plan view of a wearable device provided in an embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the structure of the optical lens provided in the embodiments of this application;

[0030] Figure 3 This is a schematic diagram of a portion of the membrane structure of the wearable device provided in the embodiments of this application;

[0031] Figure 4 This is an assembly diagram of some of the structures provided in the embodiments of this application. Detailed Implementation

[0032] In the following detailed description, only certain embodiments of the invention are shown and described by way of simple illustration. As will be understood by those skilled in the art, the embodiments described herein can be modified in various ways without departing from the spirit or scope of the invention.

[0033] In the accompanying drawings, the thicknesses of layers, films, plates, regions, etc., may be enlarged for clarity and better understanding and description. Furthermore, unless explicitly stated otherwise, the word "comprising" and its variations such as "including" or "containing" will be understood to implicitly include the discussed elements, but not necessarily exclude other elements. Further, in the specification, the phrase "on" means placed above or below the object portion, and not necessarily placed on the upper side of the object portion based on the direction of gravity.

[0034] It will be understood that although the terms “first,” “second,” etc., may be used in this document to describe various components, these components should not be limited by these terms. These components are used only to distinguish one component from another.

[0035] In existing technologies, when setting up wearable devices, such as designing VR glasses or other VR optical engines, two different molds are typically used to form two VR lenses. These two different VR lenses are then installed into the optical engine to form the wearable device. However, because the two different lenses are prepared using different molds, precision errors are increased, and the assembly efficiency between components is reduced during the assembly of the two different VR lenses, thus hindering further improvements in the performance of large field-of-view (FOV) wearable devices.

[0036] like Figure 1 As shown, Figure 1 This is a schematic plan view of a wearable device provided in an embodiment of this application. In the following embodiments, wearable glasses, such as VR glasses, will be used as an example to describe the wearable device.

[0037] Specifically, Figure 1 This is a partial structural diagram of the wearable glasses device, shown in plan view when viewed directly by the human eye. The components shown are the main optical system, including a mounting bracket 30, a lens barrel 40, and optical lenses 01.

[0038] In this embodiment of the application, when setting the above-mentioned optical lens 01, two optical lenses are used as an example for explanation: the optical lens 01 includes a first optical lens 10 and a second optical lens 20 disposed on one side of the first optical lens 10. In this way, during use, the first optical lens 10 can correspond to the left eye of a person, and the second optical lens 20 can correspond to the right eye of a person, so as to achieve the purpose of observation.

[0039] When two different optical lenses 01 and corresponding lens tubes 40 are set, the lens tube 40 includes a first lens tube 401 and a second lens tube 402. Since the two lens tubes 40 are respectively opposite to the two glasses of a person, the first lens tube 401 and the second lens tube 402 are set separately, and the first lens tube 401 is set on one side of the second lens tube 402. The two lens tubes do not overlap or interfere with each other, thereby avoiding the problem of mismatch with the human eye and interference during observation.

[0040] In this embodiment, both the first lens barrel 401 and the second lens barrel 402 are mounted on the fixed bracket 30. The shape and size of the fixed bracket 30 can be adjusted according to actual needs. For example, the shape of the fixed bracket 30 can be designed as a square, arc, or other structures to adapt to different occasions and improve the universality of VR glasses or VR devices.

[0041] Furthermore, in this embodiment of the application, a mounting center line, such as mounting center line O3O4, is also provided between the first lens barrel 401 and the second lens barrel 402. The first lens barrel 401 and the second lens barrel 402 are respectively arranged on both sides of the mounting center line O3O4 and are symmetrically arranged relative to the mounting center line O3O4, so as to ensure that the two different lens barrels correspond to the human eye.

[0042] Furthermore, a rotation center O3 is also provided on the mounting centerline O3O4. In this embodiment, the rotation center O3 is located on the same side of the first lens barrel 401 and the second lens barrel 402. For example, if it is located on the side away from the first lens barrel 401, see [link to relevant documentation]. Figure 1 Example of a position in the text.

[0043] Simultaneously, when setting two different optical lenses, the first optical lens 10 is placed inside the first lens barrel 401, and the second optical lens 20 is placed inside the second lens barrel 402. The lens barrel is then fixed to the fixing bracket 30, thereby securing the optical lenses. When setting the lens barrel and corresponding optical lens, since the optical lens is located inside the lens barrel, the internal structure of the lens barrel is the same as or similar to the external contour structure of the corresponding optical lens. This ensures that the optical lens can match and fit the lens barrel, and avoids the problem of the optical lens easily wobbling inside the lens barrel.

[0044] See Figure 1 In the structure described in this embodiment, the first optical lens 10 has a first axis of symmetry O1O3, which is symmetrical about the first axis of symmetry O1O3. The second optical lens 20 has a second axis of symmetry O2O3, which is symmetrically arranged about the second axis of symmetry O2O3. Simultaneously, the extension of the first axis of symmetry O1O3 passes through the rotation center O3, and the extension of the second axis of symmetry O2O3 also passes through the rotation center O3. Thus, the first axis of symmetry O1O3 and the second axis of symmetry O2O3 intersect at the rotation center O3.

[0045] In this embodiment, the first lens barrel 401 and the second lens barrel 402 are arranged symmetrically with respect to the rotation center O3, and the first optical lens 401 and the second optical lens 402 are arranged symmetrically with respect to the rotation center O3.

[0046] Specifically, both the first axis of symmetry O1O3 and the second axis of symmetry O2O3 are inclined relative to the mounting centerline, and the first axis of symmetry O1O3 and the mounting centerline O3O4 have a first included angle α1, while the second axis of symmetry O2O3 and the mounting centerline O3O4 have a second included angle α2. In this embodiment, the first included angle α1 and the second included angle α2 are the same.

[0047] At this point, the sum of the first included angle α1 and the second included angle α2 is the rotation angle corresponding to the rotation symmetry between the first optical lens 401 and the second optical lens 402.

[0048] In this embodiment of the application, the first included angle α1 and the second included angle α2 can be set between 15° and 70°. Optionally, both included angles can be set to 45° and 55°. This allows the two different lens barrels and optical lenses to have an ideal rotation angle, thereby effectively avoiding the problem of mutual interference between the two different components.

[0049] In this embodiment, based on the installation centerline O3O4, the rotation center O3, and the rotation angle set during rotation, the first optical lens 10 is rotated around the rotation center O3. After rotation, the first optical lens 10 can completely overlap with the second optical lens 20. At this time, the first optical lens 10 and the second optical lens 20 are equivalent to the same lens. That is, the first optical lens 10 and the second optical lens 20 provided in this embodiment can be prepared using the same mold. Similarly, when setting the first lens barrel 401 and the second lens barrel 402 provided in this embodiment, they can be prepared and installed in the same way as the two optical lenses, ultimately obtaining the wearable device in this embodiment.

[0050] like Figure 2 As shown, Figure 2 This is a schematic diagram of the optical lens provided in an embodiment of this application. (Combined with...) Figure 1 In the embodiments of this application, the first optical lens 10 is used as an example for description. The arrangement structure of the second optical lens 10 can be described with reference to the first optical lens 10.

[0051] Specifically, in setting up the optical lenses and their corresponding lens barrels provided in this application embodiment, the first optical lens 10 and the second optical lens 20 are manufactured using a common mold, and the first lens barrel and the second lens barrel are also manufactured using the same common mold. In this application embodiment, the common mold used for the first optical lens 10 and the second optical lens 20 is the same mold. The first optical lens 10 and the second optical lens 20 are formed sequentially using the same mold, thereby ensuring the consistency of the two optical lenses. Correspondingly, the first lens barrel and the second lens barrel are also formed using the same mold, and the prepared lens barrel and optical lenses are assembled. Therefore, in this application embodiment, by manufacturing two optical lenses and the corresponding lens barrel using the same set of molds, without the need for separate mold processing, the precision error during manufacturing is effectively reduced, the assembly precision during subsequent assembly is effectively improved, and production costs are effectively reduced.

[0052] Taking the first optical lens 10 as an example, the design of the second optical lens 20 is the same as that of the first optical lens. In the embodiments of this application, at the initial stage of preparation, the substrate of the optical lens is a circular substrate as the raw material, and subsequent processes are carried out on the basis of the circular substrate.

[0053] Specifically, the first optical lens 10 includes an irregularly shaped cut portion 102 and a non-irregularly shaped cut portion connected to the irregularly shaped cut portion 102. The irregularly shaped cut portion 102 includes a first irregularly shaped cut edge 103. The first irregularly shaped cut edge 103 is formed by cutting a circular substrate. Similarly, a second irregularly shaped cut edge is also correspondingly provided on the second optical lens 20.

[0054] In this embodiment, the first irregularly shaped cut edge 103 further includes a first endpoint e and a second endpoint f. The first endpoint e can be the starting point of the cut, and the second endpoint f can be the ending point of the cut. The substrate circle is cut and further trimmed.

[0055] Specifically, the line ef connecting the first endpoint e and the second endpoint f. The first axis of symmetry O1O3 intersects the line ef, and the intersection point is the midpoint of the line ef. In this embodiment, the first irregularly shaped cut edge 103 is symmetrically arranged relative to the first axis of symmetry. Similarly, on the second optical lens 20, the second irregularly shaped cut edge is also symmetrically arranged relative to the second axis of symmetry O2O3.

[0056] Furthermore, the first optical lens 10 also includes a first circular side 104. This first circular side 104 is connected to the first irregularly shaped cut edge 103, and is located on the side of the first irregularly shaped cut edge 103 away from the rotation center O3. Thus, after the first optical lens 10 and the second optical lens 20 are assembled with their corresponding fixing brackets, a relatively large distance is formed between the two irregularly shaped cut edges. This allows for the accommodation of areas such as the nasal cavity during use, and the resulting gap effectively improves the field of view during observation.

[0057] In this embodiment, the first irregular cut edge 103 and the corresponding second irregular cut edge 103 can be set to the contour shape of an arc transition edge, thereby ensuring a smooth transition of the optical lens and improving the reliability and aesthetics of the optical lens.

[0058] Specifically, for two different optical lenses, the arc length of the first circular side 104 of the first optical lens 10 is equal to the arc length of the second circular side 104 of the second optical lens 20. Furthermore, the two circular sides are rotationally symmetrical relative to the rotation center O3.

[0059] Meanwhile, the arc length corresponding to the first circular side 104 is greater than the arc length of the first irregular cut edge 103. Optionally, the radian lengths of the first circular side 104 and the second circular side can be set to 1.3 rad to 1.9 rad. Optionally, the radian lengths corresponding to the arc lengths of the first circular side 104 can be set to 1.5 rad or 1.7 rad, thereby controlling the length of the first circular side to ensure space for the irregular cut portion and to ensure the field of view effect.

[0060] In this embodiment of the application, the central angle corresponding to the first circular side 104 can be set to 240° to 290°. Optionally, the corresponding central angle can be set to 250° or 280°, or set according to requirements, so as to ensure that the optical lens has a good field of view observation effect.

[0061] Furthermore, since the irregularly shaped cut portion 102 is close to the lower nose side, in order to improve the field of view in the unobstructed area on the upper side and at the same time improve the display effect, in this application, the arc length of the first circular side 104 can be greater than or equal to 2.5 times the arc length of the first irregularly shaped cut edge 103.

[0062] See Figure 2 In the structure of this application embodiment, when setting the first irregular cut edge 103, it also includes at least a first arc edge fg and a second arc edge ge, wherein the first arc edge fg and the second arc edge ge have different curvature and arc length.

[0063] In this embodiment, the first arc edge fg is located on the side closer to the mounting centerline O3O4, and the second arc edge ge is located on the side of the first arc edge fg away from the mounting centerline. Simultaneously, the arc degree corresponding to the first arc edge fg is greater than or equal to the arc degree corresponding to the second arc edge ge, and the arc length of the first arc edge fg is less than or equal to the arc length of the second arc edge ge. This allows the second arc edge ge to have more space, preventing interference between the optical lenses or lens barrel and the nose when using VR glasses.

[0064] like Figure 3 As shown, Figure 3 This is a schematic diagram of a portion of the membrane structure of the wearable device provided in the embodiments of this application. (Combined with...) Figure 1-2 The structure in this application includes a display screen 501, a fixing bracket 30, a lens 06, an optical lens 01, and a lens barrel 40. Figure 3 The structure on one side is used as an example for illustration, and the structure on the other side is the same. In this way, by setting the above-mentioned optical lenses and corresponding lens barrels according to the structure and correspondence provided in this application, the assembly accuracy of each component during manufacturing and assembly is effectively guaranteed, and the performance of the equipment is improved.

[0065] The display screen 501 is equipped with a driving circuit and other structures. When the wearable device is working, the display screen 501 can directly display the image observed by the user. The display screen 501 can be set as an LCD screen or other types of display screen to realize the display function.

[0066] The display screen 501 is mounted on the fixed bracket 30 to prevent the display screen 501 from shaking during use. The lens 06 is mounted on the side of the fixed bracket 30 away from the display screen 501, and both the lens 06 and the optical lens 01 are correspondingly mounted in the receiving cavity of the lens barrel 40. At the same time, one end of the lens barrel 40 is engaged with the fixed bracket 30, thereby assembling to form the wearable device provided in this application.

[0067] In this embodiment, multiple optical lenses or lenses 06 of different types and functions may be provided in the lens barrel 40, and the optical lens 01 is the first optical lens or the second optical lens with the above structure provided in this embodiment.

[0068] Further, such as Figure 4 As shown, Figure 4 This is an assembly diagram of some structures provided in the embodiments of this application. (In conjunction with...) Figures 1-3 In this application, when setting up the wearable glasses, the fixing bracket 30 is provided with multiple mounting holes 303. For example, when the display screen is fixed to the fixing bracket 30, it can be fixed through the corresponding mounting holes 303. At the same time, the fixing bracket 30 is also provided with multiple positioning holes 306 or positioning posts. The position of the installation centerline is determined by the positioning holes to ensure the alignment accuracy of the installation.

[0069] Meanwhile, a limiting groove 306 is also provided on the side of the fixed bracket 30 facing the lens barrel. The limiting groove 306 can be set to surround the edge of the fixed bracket 30 in one or more circles. The shape and size of the limiting groove 306 correspond to the lens barrel 40. When installing, the end of the lens barrel 40 is aligned with the limiting groove 306 and screwed into the limiting groove 306.

[0070] Furthermore, the fixing bracket 30 is also provided with a first limiting part 304 and a second limiting part 305. The first limiting part 304 and the second limiting part 305 can be disposed within the limiting groove 306 or at the edge of the limiting groove 306. During assembly, the first endpoint e on the first irregularly shaped cut edge of the first optical lens 10 corresponds to and engages with the first limiting part 304, and the second endpoint f on the first irregularly shaped cut edge of the first optical lens 10 corresponds to and engages with the second limiting part 305. Similarly, the second optical lens is fixed and installed in the above manner. In this way, the tight cooperation between the first optical lens and the second optical lens, the lens barrel, and the fixing bracket can be effectively ensured, and the lens can be prevented from being misaligned or wobbling during use after installation, thereby improving the assembly accuracy of the wearable device.

[0071] Meanwhile, a first slot 3041 and a second slot 3052 are provided at the end where the lens barrel 40 engages with the fixed bracket 30. During assembly, the end of the lens barrel 40 is aligned with the limiting groove 306 and screwed in. At the same time, the first slot 3041 is rotated to the position corresponding to the first limiting part 304, and the second slot 3052 is rotated to the position corresponding to the second limiting part 305. In this way, after the alignment is completed, the lens barrel 40 can be effectively fixed, and the optical lenses inside the lens barrel can also be effectively fixed and engaged, thereby effectively improving the assembly accuracy and ensuring the performance of the resulting wearable device.

[0072] The wearable device provided in this application embodiment can also be applied to other display or virtual fields. By adopting a common-mode design for the optical lenses of the wearable device, the manufacturing accuracy of the wearable device can be improved, its production cost can be reduced, and the overall performance of the wearable device can be improved.

[0073] In summary, the wearable device and wearable apparatus provided by the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core ideas of the present invention. Although the present invention has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is based on the scope defined by the claims.

Claims

1. A wearable device, characterized in that, At least including: Fixed bracket; The lens barrel is mounted on the fixed bracket. The lens barrel includes a first lens barrel and a second lens barrel arranged symmetrically. The axis of symmetry between the first lens barrel and the second lens barrel is set as the mounting center line. A rotation center is defined on the mounting center line. A first optical lens is disposed inside the first lens barrel, and the first optical lens has a first axis of symmetry; A second optical lens is disposed inside the second lens barrel, and the second optical lens has a second axis of symmetry; The first optical lens and the second optical lens are arranged symmetrically with respect to the rotation center. The first optical lens has a first irregularly shaped cut edge on the side facing the rotation center, and the second optical lens has a second irregularly shaped cut edge on the side facing the rotation center. The first irregularly shaped cut edge is symmetrical with respect to the first axis of symmetry, and the second irregularly shaped cut edge is symmetrical with respect to the second axis of symmetry. The extensions of the first axis of symmetry and the second axis of symmetry intersect at the rotation center.

2. The wearable device according to claim 1, characterized in that, Both the first axis of symmetry and the second axis of symmetry are inclined relative to the installation centerline; The first axis of symmetry and the straight line corresponding to the center of rotation have a first angle with the mounting center line, and the second axis of symmetry and the straight line corresponding to the center of rotation have a second angle with the mounting center line; Wherein, the first included angle is the same as the second included angle.

3. The wearable device according to claim 2, characterized in that, The first included angle and the second included angle are set to 15° to 70°.

4. The wearable device according to claim 1, characterized in that, The first optical lens further includes a first circular side connected to the first irregularly shaped cut edge, and the second optical lens further includes a second circular side connected to the second irregularly shaped cut edge; Wherein, the first axis of symmetry passes through the center of the circle corresponding to the first circular side, and the second axis of symmetry passes through the center of the circle corresponding to the second circular side.

5. The wearable device according to claim 4, characterized in that, The arc length corresponding to the first circular side is the same as the arc length corresponding to the second circular side, and the radian of the arc length corresponding to the first circular side and the radian of the arc length corresponding to the second circular side are set to 1.3 rad to 1.9 rad.

6. The wearable device according to claim 4, characterized in that, The first irregularly shaped cut edge is set as an arc transition edge, the second irregularly shaped cut edge is set as an arc transition edge, and the arc corresponding to the first irregularly shaped cut edge is smaller than the arc corresponding to the first circular side edge, and the arc corresponding to the second irregularly shaped cut edge is smaller than the arc corresponding to the second circular side edge.

7. The wearable device according to claim 1, characterized in that, The first lens barrel and the second lens barrel are arranged symmetrically with respect to the rotation center.

8. The wearable device according to claim 1, characterized in that, The first irregularly shaped cut edge also includes a first arc edge near the mounting center line and a second arc edge away from the mounting center line; Wherein, the radian corresponding to the first arc edge is greater than or equal to the radian corresponding to the second arc edge.

9. The wearable device according to claim 1, characterized in that, The fixed bracket includes a limiting groove, a first limiting part disposed in the limiting groove, and a second limiting part disposed on one side of the first limiting part; The side of the lens barrel is disposed in the limiting groove, and the two ends of the first irregular cut edge are respectively engaged with the first limiting part and the second limiting part, and the two ends of the second irregular cut edge are respectively engaged with the first limiting part and the second limiting part.

10. A wearable device, characterized in that, include: The wearable device as described in claim 1; as well as, Display screen; located on the side of the wearable device's mounting bracket away from the lens barrel.

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