Focal length adjustable AR glasses lens structure

Abstract

The invention discloses an AR glasses lens structure with an adjustable focal length. The structure comprises a glasses frame assembly; the lens assembly is arranged at the end part of the spectacle frame assembly in a sliding manner, and the lens assembly can move towards or away from the direction of the spectacle frame assembly so as to be suitable for zooming of the lens assembly; the driving assembly is arranged in the spectacle frame assembly and can rotate in the spectacle frame assembly or move in the length direction of the spectacle frame assembly, and the driving assembly is connected with the lens assemblies so as to be suitable for driving the lens assemblies to move.

Description

Technical Field

[0001] The present invention relates to the technical field of AR glasses, and in particular to a lens structure of AR glasses with adjustable focal length. Background Art

[0002] AR glasses, or augmented reality glasses, are a type of smart glasses device that combines digital information from the virtual world with the real world through augmented reality technology.

[0003] In existing AR glasses designs, lens assemblies are usually fixedly mounted on frame assemblies, and the focal length cannot be adjusted according to the actual needs of the user; although this fixed focal length design meets the basic AR display needs to a certain extent, it has many shortcomings in practical applications.

[0004] For example, when users need to view objects at different distances, fixed-focal-length lenses may not be able to provide clear images, resulting in a reduced user experience. In addition, for users with individual differences in vision, fixed-focal-length lenses cannot meet their personalized visual needs. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one object of the present invention is to propose an adjustable focal length AR glasses lens structure, comprising: Frame components; A lens assembly, wherein the lens assembly is slidably disposed at an end of the frame assembly, and the lens assembly can move toward or away from the frame assembly to adapt to the zooming of the lens assembly; A driving assembly is disposed in the frame assembly and is rotatable in the frame assembly or movable along the length direction of the frame assembly. The driving assembly is connected to the lens assembly so as to drive the lens assembly to move.

[0006] Preferably, the frame assembly comprises: A first supporting leg, wherein a first cavity is provided in the first supporting leg, and the first cavity is arranged along the length direction of the first supporting leg; A second supporting leg, wherein a second cavity is provided in the first supporting leg, and the second cavity is provided along the length direction of the second supporting leg; A connecting rod is arranged between the first supporting leg and the second supporting leg, and two ends of the connecting rod are respectively connected to the first supporting leg and the second supporting leg.

[0007] Preferably, the frame assembly further comprises: A first support rod, the first support rod is arranged at one end of the bottom of the connecting rod, and the first support rod is arranged obliquely; A first fixing plate, wherein the first fixing plate is arranged at the bottom of the first supporting rod; A first fixing groove, wherein the first fixing groove is disposed on the first fixing plate and is circular in shape; A plurality of first limiting grooves, wherein the plurality of first limiting grooves are arranged around the inner circumference of the first fixing groove at equal intervals; a first rotating disk, the first rotating disk being rotatably disposed in the first fixing groove; A plurality of first springs, wherein the plurality of first springs are respectively arranged at equal intervals on the outer peripheral surface of the first rotating disk; a plurality of first positioning beads, wherein the plurality of first positioning beads are respectively connected to the plurality of first springs, and the plurality of first positioning beads correspond to the plurality of first limiting grooves; A first connecting plate, wherein the first connecting plate is arranged on the first rotating disk; A first nose pad, wherein the first nose pad is arranged on a side surface of the first connecting plate.

[0008] Preferably, the frame assembly comprises: A second support rod, the second support rod is arranged at the other end of the bottom of the connecting rod, and the second support rod is arranged obliquely; A second fixing plate, the second fixing plate being arranged at the bottom of the second supporting rod; A second fixing groove, wherein the second fixing groove is disposed on the second fixing plate and is circular in shape; A plurality of second limiting grooves, wherein the plurality of second limiting grooves are arranged around the inner circumference of the second fixing groove at equal intervals; a second rotating disk, the second rotating disk being rotatably disposed in the second fixing groove; A plurality of second springs, wherein the plurality of second springs are respectively arranged at equal intervals on the outer peripheral surface of the second rotating disk; a plurality of second positioning beads, wherein the plurality of second positioning beads are respectively connected to the plurality of first springs, and the plurality of second positioning beads respectively correspond to the plurality of second limiting grooves; a second connecting plate, the second connecting plate being arranged on the second rotating disk; A second nose pad, wherein the second nose pad is arranged on a side surface of the second connecting plate.

[0009] Preferably, the lens assembly comprises: A first slide groove, which is disposed at the top of the first cavity, is disposed along the length direction of the first cavity, and passes through the end of the first supporting leg; A first sliding rod, wherein the first sliding rod is slidably disposed in the first sliding groove, and an end of the first sliding rod extends outside the first supporting leg; A second slide groove, wherein the second slide groove is disposed at the top of the second cavity, the second slide groove is disposed along the length direction of the second cavity, and the second slide groove passes through to the end of the second supporting leg; A second sliding rod, wherein the second sliding rod is slidably disposed in the second sliding groove, and an end of the second sliding rod extends outside the second supporting leg; A mirror frame, wherein the mirror frame is disposed between the first slide bar and the second slide bar, and two ends of the mirror frame are respectively connected to the end of the first slide bar and the end of the second slide bar; The lens is embedded in the lens frame.

[0010] Preferably, the driving assembly comprises: Two first bearings, the two first bearings are arranged on both sides of the first end of the first cavity; A first rotating shaft, wherein the first rotating shaft is rotatably disposed in the two first bearings and the first rotating shaft extends to an end of the first supporting leg; A first gear, wherein the first gear is sleeved on the first rotating shaft; A knob is arranged at the end of the first rotating shaft.

[0011] Preferably, the driving assembly further comprises: Two second bearings, the two second bearings are arranged on both sides of the second end of the first cavity; A second rotating shaft, the second rotating shaft being rotatably disposed in the two second bearings; a second gear, the second gear being sleeved on the second rotating shaft; a belt meshing with the first gear and the second gear; A connecting block, one end of which is connected to the belt, and the other end of which is connected to the first sliding rod.

[0012] The above solution of the present invention includes at least the following beneficial effects: When the lens assembly needs to be moved for zooming, the driving assembly can be rotated so that the driving assembly can drive the lens assembly to move, thereby achieving zooming; By designing a sliding structure for the lens assembly on the frame assembly, users can easily adjust the focal length of the lens according to actual needs, so as to obtain a clear and comfortable visual experience at different distances. This design avoids the visual fatigue and discomfort caused by the fixed focal length of traditional AR glasses, greatly improving the wearing comfort and satisfaction of users; The drive component can drive the lens component to move toward or away from the frame component to achieve the zoom function; this enables AR glasses to more flexibly adapt to different application scenarios, such as education, entertainment, medical treatment, industry, etc., and provide users with a richer and more diverse AR experience; Compared with the traditional zoom method, the present invention drives the movement of the lens assembly by rotating or moving the driving assembly, thereby achieving fast and accurate adjustment of the focal length; the user can easily complete the focal length adjustment without performing complicated operations or waiting for a long time, thereby improving the efficiency and convenience of use.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 is a structural schematic diagram of an AR glasses lens structure with adjustable focal length provided in an embodiment of the present invention; Figure 2 yes Figure 1 AA cross-sectional structural diagram; Figure 3 yes Figure 2 A magnified view of part B; Figure 4 is a schematic diagram of the structure of a knob provided in an embodiment of the present invention; Figure 5 yes Figure 4 Enlarged view of part C; Figure 6 yes Figure 4 Schematic diagram of the DD cross-section structure.

[0016] Description of Figure Numbers: 1. Frame assembly, 2. Lens assembly, 3. Drive assembly; 101, first supporting leg, 102, second supporting leg, 103, connecting rod, 104, first supporting rod, 105, first fixing plate, 106, first fixing groove, 107, first limiting groove, 108, first rotating disk, 110, first positioning bead, 111, first connecting plate, 112, first nose pad, 113, second supporting rod, 114, second fixing plate, 115, second fixing groove, 116, second limiting groove, 117, second rotating disk, 119, second positioning bead, 120, second connecting plate, 121, second nose pad; 201, first slide groove, 202, first slide bar, 203, second slide groove, 204, second slide bar, 205, mirror frame; 302, first rotating shaft, 303, first gear, 304, knob, 306, second rotating shaft, 307, second gear, 308, belt, 309, connecting block.

[0017] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0023] The adjustable focal length AR glasses lens structure according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0024] See also Figure 1 to Figure 6 In this embodiment, the present invention comprises: a frame assembly 1; a lens assembly 2, which is slidably arranged at the end of the frame assembly 1, and the lens assembly 2 can move toward or away from the frame assembly 1, so as to be suitable for the lens assembly 2 to change focus; a driving assembly 3, which is arranged in the frame assembly 1, and can rotate in the frame assembly 1 or move along the length direction of the frame assembly 1, and the driving assembly 3 is connected to the lens assembly 2, so as to be suitable for driving the lens assembly 2 to move; when the lens assembly 2 needs to be moved and changed focus, the driving assembly 3 can be rotated so that the driving assembly 3 can drive the lens assembly 2 to move, so as to achieve the change focus; By designing a sliding structure of the lens assembly 2 on the frame assembly 1, users can easily adjust the focal length of the lens according to actual needs, so as to obtain a clear and comfortable visual experience at different distances. This design avoids the visual fatigue and discomfort caused by the fixed focal length of traditional AR glasses, and greatly improves the wearing comfort and satisfaction of users; The driving component 3 can drive the lens component 2 to move toward or away from the frame component 1 to achieve a zoom function; this enables the AR glasses to more flexibly adapt to different application scenarios, such as education, entertainment, medical treatment, industry, etc., and provide users with a richer and more diverse AR experience; Compared with the traditional zoom method, the present invention drives the movement of the lens component 2 by rotating or moving the driving component 3, thereby achieving fast and accurate adjustment of the focal length; the user can easily complete the focal length adjustment without performing complicated operations or waiting for a long time, thereby improving the efficiency and convenience of use.

[0025] In this embodiment, the frame assembly 1 includes: a first supporting leg 101, a first cavity is provided in the first supporting leg 101, and the first cavity is arranged along the length direction of the first supporting leg 101; a second supporting leg 102, a second cavity is provided in the first supporting leg 101, and the second cavity is arranged along the length direction of the second supporting leg 102; a connecting rod 103, the connecting rod 103 is arranged between the first supporting leg 101 and the second supporting leg 102, and the two ends of the connecting rod 103 are respectively connected to the first supporting leg 101 and the second supporting leg 102; the connecting rod 103 connects the first supporting leg 101 and the second supporting leg 102 so that the first supporting leg 101 and the second supporting leg 102 can be worn on the ears on both sides of the user's head.

[0026] In the present embodiment, the frame assembly 1 also includes: a first support rod 104, the first support rod 104 is arranged at one end of the bottom of the connecting rod 103, and the first support rod 104 is inclined; a first fixing plate 105, the first fixing plate 105 is arranged at the bottom of the first support rod 104; a first fixing groove 106, the first fixing groove 106 is arranged on the first fixing plate 105, and the first fixing groove 106 is circular; a plurality of first limiting grooves 107, a plurality of first limiting grooves 107 are arranged around the inner circumference of the first fixing groove 106 at equal intervals; a first rotating disk 108, the first rotating disk 108 is rotatably arranged in the first fixing groove 106; a plurality of first springs, the plurality of first springs are respectively arranged on the outer circumference of the first rotating disk 108 at equal intervals; a plurality of first positioning beads 110, the plurality of first positioning beads 110 are respectively connected to the plurality of first springs, and the plurality of first positioning beads 110 correspond to the plurality of first limiting grooves 107; a first connection Plate 111, the first connecting plate 111 is arranged on the first rotating disk 108; the first nose pad 112, the first nose pad 112 is arranged on the side of the first connecting plate 111; before wearing, the user can rotate the first nose pad 112 according to his own nose shape, and when the first nose pad 112 rotates, it drives the first rotating disk 108 to rotate in the first fixed groove 106, and the multiple first springs and the multiple first positioning beads 110 also rotate in the first fixed groove 106, and the multiple first positioning beads 110 abut against the inner circumferential surface of the first fixed groove 106 during rotation, and compress the multiple first springs respectively. When the multiple first positioning beads 110 rotate to correspond to the multiple first limiting grooves 107, the multiple first springs push the multiple first positioning beads 110 to be embedded in the corresponding first limiting grooves 107 through the compressed elastic potential energy, so that the first nose pad 112 will not shake, rotate, etc. during use.

[0027] In the present embodiment, the frame assembly 1 includes: a second support rod 113, the second support rod 113 is arranged at the other end of the bottom of the connecting rod 103, and the second support rod 113 is inclined; a second fixing plate 114, the second fixing plate 114 is arranged at the bottom of the second support rod 113; a second fixing groove 115, the second fixing groove 115 is arranged on the second fixing plate 114, and the second fixing groove 115 is circular; a plurality of second limiting grooves 116, the plurality of second limiting grooves 116 are arranged around the inner circumference of the second fixing groove 115 at equal intervals; a second rotating disk 117, the second rotating disk 117 is rotatably arranged in the second fixing groove 115; a plurality of second springs, the plurality of second springs are respectively arranged on the outer circumference of the second rotating disk 117 at equal intervals; a plurality of second positioning beads 119, the plurality of second positioning beads 119 are respectively connected to the plurality of first springs, and the plurality of second positioning beads 119 correspond to the plurality of second limiting grooves 116 respectively; a second connecting rod 103 The connecting plate 120, the second connecting plate 120 is arranged on the second rotating disk 117; the second nose pad 121, the second nose pad 121 is arranged on the side of the second connecting plate 120; before wearing, the user can rotate the second nose pad 121 according to his own nose shape, and when the second nose pad 121 rotates, it drives the second rotating disk 117 to rotate in the second fixed groove 115, and the multiple second springs and the multiple second positioning beads 119 also rotate in the second fixed groove 115, and the multiple second positioning beads 119 abut against the inner circumferential surface of the second fixed groove 115 during rotation, and compress the multiple second springs respectively. When the multiple second positioning beads 119 rotate to correspond to the multiple second limiting grooves 116, the multiple second springs push the multiple second positioning beads 119 to be embedded in the corresponding second limiting grooves 116 through the compressed elastic potential energy, so that the second nose pad 121 will not shake, rotate, etc. during use.

[0028] In this embodiment, the lens assembly 2 includes: a first slide groove 201, which is arranged at the top of the first cavity, the first slide groove 201 is arranged along the length direction of the first cavity, and the first slide groove 201 passes through the end of the first supporting leg 101; a first slide bar 202, the first slide bar 202 is slidably arranged in the first slide groove 201, and the end of the first slide bar 202 extends to the outside of the first supporting leg 101; a second slide groove 203, the second slide groove 203 is arranged at the top of the second cavity, the second slide groove 203 is arranged along the length direction of the second cavity, and the second slide groove 203 passes through to the end of the second supporting leg 102; a second slide bar 204, the second slide bar 20 4 is slidably arranged in the second slide groove 203, and the end of the second slide bar 204 extends to the outside of the second supporting leg 102; the frame 205, the frame 205 is arranged between the first slide bar 202 and the second slide bar 204, and the two ends of the frame 205 are respectively connected to the end of the first slide bar 202 and the end of the second slide bar 204; the lens, the lens is embedded in the frame 205; when the lens needs to be zoomed, it can be moved in the first slide groove 201 and the second slide groove 203 respectively through the first slide bar 202 and the second slide bar 204, so that the lens can be moved in the direction away from or close to the frame assembly 1, so as to facilitate the optical component (lens) in the lens to zoom.

[0029] In this embodiment, the driving assembly 3 includes: two first bearings, the two first bearings are arranged on both sides of the first end of the first cavity; a first rotating shaft 302, the first rotating shaft 302 is rotatably arranged in the two first bearings, and the first rotating shaft 302 extends to the end of the first supporting leg 101; a first gear 303, the first gear 303 is sleeved on the first rotating shaft 302; a knob 304, the knob 304 is arranged at the end of the first rotating shaft 302; the driving assembly 3 also includes: two second bearings, the two second bearings are arranged on both sides of the second end of the first cavity; a second rotating shaft 306, the second rotating shaft 306 is rotatably arranged in the two second bearings; a second gear 307, the second gear 307 is sleeved on the second rotating shaft 306; a belt 308, the belt 308 is meshed with the first gear 303 and the second gear 307 The first gear 303 is engaged with the belt 308 so that the belt 308 rotates on the first gear 303 and the second gear 307. When the belt 308 rotates, the connecting block 309 drives the first slide bar 202 to rotate in the first slide groove 201, so that the first slide bar 202 pushes the lens to move toward or away from the frame assembly 1, thereby achieving zooming.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0031] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An adjustable focal length AR glasses lens structure, characterized in that: include: Frame components; A lens assembly, wherein the lens assembly is slidably disposed at an end of the frame assembly, and the lens assembly can move toward or away from the frame assembly to adapt to the zooming of the lens assembly; A driving assembly is disposed in the frame assembly and is rotatable in the frame assembly or movable along the length direction of the frame assembly. The driving assembly is connected to the lens assembly so as to drive the lens assembly to move.

2. The adjustable focal length AR glasses lens structure according to claim 1, characterized in that: The frame assembly comprises: A first supporting leg, wherein a first cavity is provided in the first supporting leg, and the first cavity is arranged along the length direction of the first supporting leg; A second supporting leg, wherein a second cavity is provided in the first supporting leg, and the second cavity is provided along the length direction of the second supporting leg; A connecting rod is arranged between the first supporting leg and the second supporting leg, and two ends of the connecting rod are respectively connected to the first supporting leg and the second supporting leg.

3. The adjustable focal length AR glasses lens structure according to claim 2, characterized in that: The frame assembly further comprises: A first support rod, the first support rod is arranged at one end of the bottom of the connecting rod, and the first support rod is arranged obliquely; A first fixing plate, wherein the first fixing plate is arranged at the bottom of the first supporting rod; A first fixing groove, wherein the first fixing groove is disposed on the first fixing plate and is circular in shape; A plurality of first limiting grooves, wherein the plurality of first limiting grooves are arranged around the inner circumference of the first fixing groove at equal intervals; a first rotating disk, the first rotating disk being rotatably disposed in the first fixing groove; A plurality of first springs, wherein the plurality of first springs are respectively arranged at equal intervals on the outer peripheral surface of the first rotating disk; a plurality of first positioning beads, wherein the plurality of first positioning beads are respectively connected to the plurality of first springs, and the plurality of first positioning beads correspond to the plurality of first limiting grooves; A first connecting plate, wherein the first connecting plate is arranged on the first rotating disk; A first nose pad, wherein the first nose pad is arranged on a side surface of the first connecting plate.

4. The adjustable focal length AR glasses lens structure according to claim 3, characterized in that: The frame assembly comprises: A second support rod, the second support rod is arranged at the other end of the bottom of the connecting rod, and the second support rod is arranged obliquely; A second fixing plate, the second fixing plate being arranged at the bottom of the second supporting rod; A second fixing groove, wherein the second fixing groove is disposed on the second fixing plate and is circular in shape; A plurality of second limiting grooves, wherein the plurality of second limiting grooves are arranged around the inner circumference of the second fixing groove at equal intervals; a second rotating disk, the second rotating disk being rotatably disposed in the second fixing groove; A plurality of second springs, wherein the plurality of second springs are respectively arranged at equal intervals on the outer peripheral surface of the second rotating disk; a plurality of second positioning beads, wherein the plurality of second positioning beads are respectively connected to the plurality of first springs, and the plurality of second positioning beads respectively correspond to the plurality of second limiting grooves; a second connecting plate, the second connecting plate being arranged on the second rotating disk; A second nose pad, wherein the second nose pad is arranged on a side surface of the second connecting plate.

5. The adjustable focal length AR glasses lens structure according to claim 2, characterized in that: The lens assembly comprises: A first slide groove, wherein the first slide groove is disposed at the top of the first cavity, the first slide groove is disposed along the length direction of the first cavity, and the first slide groove passes through the end of the first supporting leg; A first sliding rod, wherein the first sliding rod is slidably disposed in the first sliding groove, and an end of the first sliding rod extends outside the first supporting leg; A second slide groove, wherein the second slide groove is disposed at the top of the second cavity, the second slide groove is disposed along the length direction of the second cavity, and the second slide groove passes through to the end of the second supporting leg; A second sliding rod, wherein the second sliding rod is slidably disposed in the second sliding groove, and an end of the second sliding rod extends outside the second supporting leg; A mirror frame, wherein the mirror frame is disposed between the first slide bar and the second slide bar, and two ends of the mirror frame are respectively connected to the end of the first slide bar and the end of the second slide bar; The lens is embedded in the lens frame.

6. The adjustable focal length AR glasses lens structure according to claim 5, characterized in that: The drive assembly comprises: Two first bearings, the two first bearings are arranged on both sides of the first end of the first cavity; A first rotating shaft, wherein the first rotating shaft is rotatably disposed in the two first bearings and the first rotating shaft extends to an end of the first supporting leg; A first gear, wherein the first gear is sleeved on the first rotating shaft; A knob is arranged at the end of the first rotating shaft.

7. The adjustable focal length AR glasses lens structure according to claim 6, characterized in that: The drive assembly also includes: Two second bearings, the two second bearings are arranged on both sides of the second end of the first cavity; A second rotating shaft, the second rotating shaft being rotatably disposed in the two second bearings; a second gear, the second gear being sleeved on the second rotating shaft; a belt meshing with the first gear and the second gear; A connecting block, one end of which is connected to the belt, and the other end of which is connected to the first sliding rod.

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