Optical-mechanical module and head-mounted device

Abstract

The application provides an optical-mechanical module, which comprises a lens barrel seat body, a lens support barrel and a diopter adjustment assembly. The lens barrel seat body comprises a connecting barrel. The lens support barrel is coaxially accommodated in the inner cavity of the connecting barrel. The diopter adjustment assembly comprises a lens barrel rotating member and a driving mechanism. The lens barrel rotating member comprises a rotating barrel rotatably sleeved on the connecting barrel, a worm wheel connected to the rotating barrel, and a guide sliding rod. The connecting barrel, the rotating barrel and the worm wheel are coaxial. The inner circumferential surface of the rotating barrel is provided with a spiral groove. One end of the guide sliding rod is connected to the lens support barrel, and the opposite end of the guide sliding rod is accommodated in the spiral groove. The driving mechanism comprises a worm gear engaged with the worm wheel. The rotation of the worm gear drives the worm wheel to rotate around the connecting barrel. The rotating barrel rotates around the connecting barrel along with the worm wheel, so that the guide sliding rod moves along the spiral groove. The guide sliding rod moves along the axial direction of the connecting barrel, so that the lens support barrel moves along the axial direction thereof. The application further provides a head-mounted device provided with the optical-mechanical module.

Description

Technical Field

[0001] This invention relates to the field of virtual reality equipment technology, and more particularly to an optical engine module and a head-mounted device equipped with the adjustment mechanism of the optical engine module. Background Technology

[0002] Head-mounted displays are products that integrate simulation technology, computer graphics, human-computer interface technology, multimedia technology, sensor technology, and network technology. They represent a novel human-computer interaction method created using computers and the latest sensor technologies. Currently, the number of people with myopia is relatively large; therefore, head-mounted displays must consider the user experience of people with myopia. Existing head-mounted displays on the market generally use two methods to accommodate myopia users: one is that the existing head-mounted display can be worn directly on the user's head, meaning that the user does not need to remove their glasses when using the display; the faceplate of the head-mounted display directly covers the user's glasses, which improves the user experience. However, because the user is wearing both their glasses and the head-mounted display simultaneously, the distance between the user's eyes and the screen of the head-mounted display is relatively large, reducing the screen area that the user can see. Another type is the existing head-mounted device, where the optical engine module has a built-in diopter adjustment function, and the diopter is adjusted by a dial on the lens barrel of the head-mounted device. When using it, the user needs to adjust the two lenses of the head-mounted device to the appropriate power before wearing it. However, in actual use, users are often not very clear about their own eye diopter. Therefore, when using a head-mounted device, it is necessary to put on and take off the head-mounted device multiple times to adjust the diopter of the lens barrel, which is inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide an optomechanical module that facilitates diopter adjustment and a head-mounted device equipped with the optomechanical module.

[0004] To address the aforementioned technical problems, this invention provides an optomechanical module, comprising a lens barrel base, a lens support cylinder, and a diopter adjustment assembly. The lens barrel base includes a connecting cylinder; the lens support cylinder is housed within the inner cavity of the connecting cylinder, and the lens support cylinder and the connecting cylinder are coaxial; the diopter adjustment assembly includes a lens barrel rotating component and a driving mechanism. The lens barrel rotating component includes a rotating cylinder rotatably fitted onto the connecting cylinder, a worm gear connected to the rotating cylinder, and a guide rod. The connecting cylinder, the rotating cylinder, and the worm gear are coaxial, and the inner circumferential surface of the rotating cylinder is provided with a helical groove; one end of the guide rod is connected to the lens support cylinder, and the opposite end of the guide rod is housed in the helical groove; the driving mechanism includes a worm gear meshing with the worm gear. The rotation of the worm gear drives the worm gear to rotate around the connecting cylinder, and the rotating cylinder rotates around the connecting cylinder along with the worm gear, causing the guide rod to move along the helical groove. Simultaneously, the guide rod moves along the axial direction of the connecting cylinder, causing the lens support cylinder to move along its axial direction.

[0005] The present invention also provides a head-mounted device, comprising an optomechanical module and a housing. The optomechanical module is disposed within the inner cavity of the housing. The optomechanical module includes a lens barrel base, a lens support cylinder, and a diopter adjustment assembly. The lens barrel base includes a connecting cylinder. The lens support cylinder is housed within the inner cavity of the connecting cylinder, and the lens support cylinder and the connecting cylinder are coaxial. The diopter adjustment assembly includes a lens barrel rotating component and a driving mechanism. The lens barrel rotating component includes a rotating cylinder rotatably sleeved on the connecting cylinder, a worm gear connected to the rotating cylinder, and a guide rod. The connecting cylinder, the rotating cylinder, and the worm gear are coaxial. The rotating cylinder has a spiral groove on its inner circumferential surface; one end of the guide rod is connected to the lens support cylinder, and the other end of the guide rod is accommodated in the spiral groove; the driving mechanism includes a worm gear meshing with the worm wheel, and a first operating member of the driving mechanism protrudes from the housing. By operating the first operating member, the rotation of the worm gear drives the worm wheel to rotate around the connecting cylinder, and the rotating cylinder rotates around the connecting cylinder with the worm wheel, so that the guide rod moves along the spiral groove. At the same time, the guide rod moves along the axial direction of the connecting cylinder, so that the lens support cylinder moves along its axial direction.

[0006] The optomechanical module of the head-mounted device of the present invention can adjust the refractive power through a diopter adjustment component; that is, after the head-mounted device is worn on the user's head, the user can directly adjust the refractive power of the head-mounted device by operating the diopter adjustment component until it suits the user's eyes, without the user having to remove the head-mounted device from the head to adjust the refractive power; thus avoiding the need to wear or remove the head-mounted device repeatedly. Therefore, the diopter adjustment of the head-mounted device is simple and convenient, and can meet the needs of different users. Attached Figure Description

[0007] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0008] Figure 1 This is a three-dimensional structural diagram of a head-mounted device provided in one embodiment of the present invention;

[0009] Figure 2 yes Figure 1 A three-dimensional structural diagram of the head-mounted device from another perspective;

[0010] Figure 3 yes Figure 1 An exploded view of the three-dimensional structure of the head-mounted device in the image;

[0011] Figure 4 yes Figure 2 An exploded view of the three-dimensional structure of the head-mounted device in the image;

[0012] Figure 5 yes Figure 4 A three-dimensional structural diagram of the head-mounted device from another perspective;

[0013] Figure 6 yes Figure 3 Enlarged 3D structural diagram of the optical engine support and optical engine module;

[0014] Figure 7 yes Figure 5 Enlarged 3D structural diagram of the optical engine support and optical engine module;

[0015] Figure 8 yes Figure 6 An exploded three-dimensional structural diagram of the optical engine support and optical engine module;

[0016] Figure 9 yes Figure 7 An exploded three-dimensional structural diagram of the optical engine support and optical engine module;

[0017] Figure 10 yes Figure 9 An exploded view of the three-dimensional structure of the optomechanical module in the image;

[0018] Figure 11 yes Figure 10 A three-dimensional structural diagram of the optomechanical module from another perspective;

[0019] Figure 12 yes Figure 10 A further exploded three-dimensional structural diagram of the optomechanical module in the diagram;

[0020] Figure 13 yes Figure 11 A further exploded three-dimensional structural diagram of the optomechanical module in the diagram;

[0021] Figure 14 yes Figure 13 A three-dimensional structural diagram of the optomechanical module from another perspective;

[0022] Figure 15 yes Figure 6 An exploded three-dimensional structural diagram of the optical engine support and optical engine module;

[0023] Figure 16 yes Figure 15 A three-dimensional exploded view of the optical engine support and optical engine module from another perspective;

[0024] Figure 17 yes Figure 15 Further three-dimensional structural exploded diagram of the optical engine support and optical engine module;

[0025] Figure 18 yes Figure 17 Further three-dimensional structural exploded diagram of the optical engine support and optical engine module;

[0026] Figure 19 yes Figure 17 Enlarged schematic diagram of some structures of the optical engine bracket and optical engine module;

[0027] Figure 20 yes Figure 18 Enlarged schematic diagram of some structures of the optical engine bracket and optical engine module.

[0028] Explanation of reference numerals in the attached drawings: 100, main body of the equipment; 20, optomechanical module; 22, lens barrel base; 221, connecting cylinder; 2212, guide groove; 2213, connecting ring; 2215, positioning flange; 223, connecting seat; 2232, first guide part; 2234, first guide hole; 2235, guide groove; 2236, clearance groove; 2237, second guide part; 2238, second guide hole; 225, display module; 2250, display screen; 226, first positioning block; 227, second positioning block; 228, third positioning block; 24, lens support cylinder; 25, optomechanical bracket; 251, main bracket; 2510, connecting shaft; 2511, first support part; 2511a, first support block; 2511b 2511c, First positioning block; 2512, First rotating shaft; 2514, Second rotating shaft; 2515, Second support part; 2515a, Second support block; 2515b, Second positioning block; 2515c, Second rotating shaft; 2516, First guide groove; 2517, First guide part; 2517a, First connecting block; 2517b, First snap-fit ​​piece; 2517c, First connecting hole; 2518, Second guide part; 2518a, Second connecting block; 2518b, Second snap-fit ​​piece; 2518c, Second connecting hole; 2519, Third guide part; 2519a, Third connecting block; 2519b, Third snap-fit ​​piece; 2519c, Third connecting hole; 255, Positioning frame; 26, Refractive lens 262. Lens tube rotating component; 2621. Rotating cylinder; 2623. Worm gear; 2625. Guide rod; 2626. Spiral groove; 2627. Receiving groove; 2628. Pointer; 265. Drive mechanism; 2651. Worm gear; 2652. Sliding hole; 2653. Positioning groove; 2655. Rotating rod; 2656. Positioning strip; 2657. First operating component; 2657a. Fixed cylinder; 2657b. Operating panel; 2657c. Buckle; 266. Light-transmitting cover; 2662. Light-transmitting lens; 2664. Support ring; 2665. Positioning groove; 2667. Scale; 27. Interpupillary distance adjustment component; 271. Adjusting rack; 2711. First positioning hole; 2712. Adjusting groove; 2712a. 2713. Guide flange; 2714. First connecting assembly; 2715. First guide element; 2714a. First guide strip; 2714b. First stop flange; 2714c. First slot; 2715. First connector; 2715a. First through hole; 2715b. First snap-fit ​​groove; 2717. Second guide element; 2717a. Second guide strip; 2717b. Second stop flange; 2717c. Second slot; 2718. Second connector; 2718a. Second through hole; 2718b. Second snap-fit ​​groove; 273. Drive gear; 2731. Connecting part; 2733. Gear body; 2734. First shaft hole; 2735. Snap-fit ​​part; 274. Second operating element; 2742. Snap-fit ​​hole; 275. Ring washer;276. Linkage mechanism; 2761. First linkage rack; 2762. Second positioning hole; 2763. First sliding groove; 2763a. First guide flange; 2764. Second linkage rack; 2765. Third positioning hole; 2766. Second sliding groove; 2766a. Second guide flange; 2767. Linkage gear; 2767a. Second shaft hole; 2767b. Positioning ring; 50. Housing; 52. First housing; 522. First mounting space; 524. Second mounting space; 525. Support cylinder; 54. Second housing; 542. Through hole; 70. Decorative part; 80. Face mask; 802. Cover cylinder; 804. Connecting part. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this application, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] It should be noted that when a component is referred to as "fixed to" or "set on" another component, the component can be directly connected to the other component or indirectly connected to the other component through one or more connecting elements. When a component is referred to as "connected to" another component, it can be directly connected to the other component or connected to the other component through one or more connecting elements.

[0032] Please see Figures 1 to 7One embodiment of the present invention provides a head-mounted device, which includes a device body 100, a strap connected to the device body 100, and a headrest connected to the end of the strap away from the device body 100. The device body 100 is worn outside the user's eyes, and the headrest is worn behind the user's head. The tightness of the strap is adjusted to ensure that the head-mounted device is securely worn on the user's head. The device body 100 includes an optical engine module 20, a housing 50, a decorative element 70, and a face mask 80. The optical engine module 20 is disposed within the housing 50. The housing 50 includes a first housing 52 and a second housing 54, which are interconnectable. The optical engine module 20 is positioned between the first housing 52 and the second housing 54. The decorative element 70 is connected to the side of the first housing 52 opposite to the second housing 54, and the face mask 80 is connected to the side of the second housing 54 opposite to the first housing 52.

[0033] like Figures 8-14 As shown, the optomechanical module 20 includes a lens barrel base 22, a lens support tube 24, a diopter adjustment assembly 26, and an interpupillary distance adjustment assembly 27. The lens barrel base 22 includes a connecting tube 221 and a connecting seat 223, with one end of the connecting tube 221 connected to the connecting seat 223. The lens support tube 24 is housed within the cavity of the connecting tube 221, and the lens support tube 24 is coaxial with the connecting tube 221. The lens support tube 24 can move relative to the connecting tube 221 along its axial direction. The lens support tube 24 is used for lenses (not shown in the figure). The diopter adjustment assembly 26 includes a lens barrel rotating component 262 and a drive mechanism 265. The lens barrel rotating component 262 includes a rotating tube 2621 rotatably sleeved on the connecting tube 221, a worm gear 2623 connected to the rotating tube 2621, and a guide rod 2625. The connecting cylinder 221, rotating cylinder 2621, and worm gear 2623 are coaxial. The inner circumferential surface of the rotating cylinder 2621 is provided with a spiral groove 2626. One end of the guide rod 2625 is connected to the lens support cylinder 24, and the other end of the guide rod 2625 is housed in the spiral groove 2626 of the lens barrel rotating component 262. The driving mechanism 265 includes a worm 2651 meshing with the worm gear 2623. The rotation of the worm 2651 drives the worm gear 2623 to rotate around the connecting cylinder 221. The rotating cylinder 2621 rotates around the rotating cylinder 2621 with the worm gear 2623, so that the guide rod 2625 moves along the spiral groove 2626. At the same time, the guide rod 2625 moves along the axial direction of the connecting cylinder 221, so that the lens support cylinder 24 moves along its axial direction, thereby changing the diopter of the optomechanical module 20. Optionally, the wall of the connecting cylinder 221 is provided with a guide groove 2212 along its axial direction, and the guide rod 2625 is slidably inserted through the guide groove 2212, with one end of the guide rod 2625 away from the connecting cylinder 221 housed in the spiral groove 2626.

[0034] In this embodiment, the head-mounted device includes two optical engine modules 20. Each optical engine module 20 includes a lens barrel base 22, a lens support tube 24, and a diopter adjustment component 26. The two optical engine modules 20 share a single interpupillary distance adjustment component 27. The two lens support tubes 24 are respectively housed within the connecting tubes 221 of the two lens barrel bases 22. The two diopter adjustment components 26 are used to adjust the diopter of the lens components on the two optical engine modules 20 respectively. The interpupillary distance adjustment component 27 is used to adjust the interpupillary distance between the two optical engine modules 20.

[0035] The optomechanical module 20 of the head-mounted device of the present invention can adjust the refractive power through the diopter adjustment component 26; that is, after the head-mounted device is worn on the user's head, the user can directly adjust the refractive power of the head-mounted device by operating the diopter adjustment component 26 until it is suitable for the user's eyes, without the user having to remove the head-mounted device from the head to adjust the refractive power; thus avoiding the need to wear or remove the head-mounted device multiple times, the diopter adjustment of the head-mounted device is simple and convenient, and can meet the needs of different users.

[0036] like Figures 11-14 As shown, two or more guide grooves 2212 can be provided on the wall of the connecting cylinder 221. The length direction of each guide groove 2212 is parallel to the axial direction of the connecting cylinder 221, and each guide groove 2212 passes through the outer and inner circumferential surfaces of the cylinder wall. Optionally, two or more guide grooves 2212 are arranged circumferentially around the connecting cylinder 221. Further, two or more guide grooves 2212 are evenly arranged circumferentially around the connecting cylinder 221. In this embodiment, three guide grooves 2212 are provided on the wall of the connecting cylinder 221, and the three guide grooves 2212 are evenly spaced around the circumference of the connecting cylinder 221. In other embodiments, two guide grooves 2212 are provided on the wall of the connecting cylinder 221, and the two guide grooves 2212 are evenly spaced around the circumference of the connecting cylinder 221. In other embodiments, the connecting cylinder 221 has three or more guide grooves 2212 spaced apart from each other on its wall, and the three or more guide grooves 2212 are evenly spaced around the circumference of the connecting cylinder 221. A display module 225 is provided on the side of the connecting seat 223 opposite to the connecting cylinder 221. The display module 225 includes a display screen 2250 and a circuit board electrically connected to the display screen 2250. The inner cavity 2211 of the connecting cylinder 221 passes through the connecting seat 223 so that the light-emitting surface of the display screen 2250 of the display module 225 is exposed in the inner cavity 2211 of the connecting cylinder 221.

[0037] A connecting ring 2213 is provided at the end of the connecting cylinder 221 facing away from the connecting seat 223. The connecting ring 2213 is coaxial with the connecting cylinder 221. Optionally, the inner circumferential surface of the connecting ring 2213 is coplanar with the inner circumferential surface of the connecting cylinder 221, and the outer diameter of the connecting ring 2213 is smaller than the outer diameter of the connecting cylinder 221. Optionally, a positioning flange 2215 is provided on the outer circumferential surface of the connecting ring 2213, and the positioning flange 2215 surrounds the connecting ring 2213 circumferentially.

[0038] The connecting seat 223 includes a first guide slide portion 2232 and a second guide slide portion 2237. The first guide slide portion 2232 is located on one side of the connecting seat 223, and the second guide slide portion 2237 is located on the opposite side of the connecting seat 223. The first guide slide portion 2232 has a first guide slide hole 2234 formed radially along the connecting cylinder 221. In this embodiment, two mutually spaced first guide slide portions 2232 are provided on one side of the connecting seat 223. The two first guide slide portions 2232 are respectively provided with first guide slide holes 2234 radially along the connecting cylinder 221. The inner surface of the first guide slide hole 2234 of one of the first guide slide portions 2232 is provided with a guide slide groove 2235. The guide slide groove 2235 is parallel to the first guide slide hole 2234, and the opposite ends of the guide slide groove 2235 pass through the opposite end faces of the first guide slide portion 2232. The connecting seat 223 has a clearance groove 2236 between the two first guide slide portions 2232. The second guide slide portion 2237 is located on the side of the connecting seat 223 opposite to the first guide slide portion 2232, and the second guide slide portion 2237 is provided with a second guide slide hole 2238 parallel to the guide slide groove 2235. In this embodiment, the connecting seat 223 is provided with the second guide slide portion 2237 on the radially opposite sides of the connecting cylinder 221 on the side of the connecting seat 223 opposite to the first guide slide portion 2232.

[0039] The diopter adjustment assembly 26 includes two or more guide rods 2625, which are respectively connected to the outer peripheral surface of the lens support cylinder 24. Optionally, the two or more guide rods 2625 are arranged circumferentially around the lens support cylinder 24. The two or more guide rods 2625 are slidably accommodated in two or more guide grooves 2212 of the connecting cylinder 221. Further, the two or more guide rods 2625 are evenly arranged circumferentially around the lens support cylinder 24; in this embodiment, the diopter adjustment assembly 26 includes three guide rods 2625, one end of which is respectively connected to the outer peripheral surface of the lens support cylinder 24. Preferably, the three guide rods 2625 are evenly spaced around the circumference of the lens support cylinder 24. Specifically, the outer peripheral surface of the lens support cylinder 24 is provided with a connecting hole, and one end of the guide rod 2625 is positioned in the connecting hole. The axis of the guide rod 2625 is perpendicular to the axis of the lens support cylinder 24. In other embodiments, the diopter adjustment assembly 26 may also include only two guide rods 2625, which are evenly spaced around the circumference of the lens support cylinder 24. In other embodiments, the diopter adjustment assembly 26 may include three or more guide rods 2625, optionally, which are evenly spaced around the circumference of the lens support cylinder 24. In some embodiments, the diopter adjustment assembly 26 may also include only one guide rod 2625, one end of which is connected to the outer peripheral surface of the lens support cylinder 24, and the other end of which is accommodated in the guide groove 2212.

[0040] The inner circumferential surface of the rotating cylinder 2621 is provided with two or more helical grooves 2626 spaced apart from each other. Optionally, the two or more helical grooves 2626 are arranged circumferentially around the rotating cylinder 2621. Two or more guide rods 2625 are respectively inserted into the two or more guide grooves 2626, and the ends of the two or more guide rods 2625 away from the lens support cylinder 24 are respectively accommodated in the two or more helical grooves 2626. Further, the two or more helical grooves 2626 are evenly arranged circumferentially around the rotating cylinder 2621; in this embodiment, the inner circumferential surface of the rotating cylinder 2621 is provided with three helical grooves 2626 spaced apart from each other. Optionally, the three helical grooves 2626 are evenly spaced around the circumferential surface of the rotating cylinder 2621. One end of each helical groove 2626 is close to the connecting seat 223, and the other end of the helical groove 2626 is away from the connecting seat 223. In other embodiments, the inner circumferential surface of the rotating cylinder 2621 may have only two helical grooves 2626. Optionally, the two helical grooves 2626 are evenly spaced around the circumference of the rotating cylinder 2621. In other embodiments, the inner circumferential surface of the rotating cylinder 2621 may have three or more helical grooves 2626 spaced apart from each other. Optionally, the three or more helical grooves 2626 are evenly spaced around the circumference of the rotating cylinder 2621. In some embodiments, the inner circumferential surface of the rotating cylinder 2621 may also include only one helical groove 2626.

[0041] A worm gear 2623 is connected to one end of a rotating cylinder 2621. The worm gear 2623 and the rotating cylinder 2621 are coaxial. The end of the rotating cylinder 2621 facing away from the worm gear 2623 is provided with a receiving groove 2627. The optomechanical module 26 also includes a light-transmitting cover 266 connected to the open end of the rotating cylinder 2621. Specifically, the light-transmitting cover 266 includes a light-transmitting lens 2662 and a support ring 2664 surrounding the light-transmitting lens 2662. The inner circumferential surface of the support ring 2664 is provided with a positioning groove 2665 along its circumference. The light-transmitting cover 266 can be fitted onto the end of the connecting cylinder 221 away from the connecting seat 223. Specifically, when the light-transmitting cover 266 is fitted onto the connecting ring 2213 of the connecting cylinder 221, the positioning flange 2215 can be positioned in the positioning groove 2665, and the support ring 2664 is received in the receiving groove 2627 of the rotating cylinder 2621.

[0042] Optionally, the rotating cylinder 2621 can rotate relative to the light-transmitting cover 266. A scale is provided between the light-transmitting cover 266 and the rotating cylinder 2621 to display the rotation amount of the rotating cylinder 2621. In this embodiment, a scale 2667 is provided on the outer circumferential surface of the support ring 2664 of the light-transmitting cover 266, and the scale 2667 is arranged circumferentially around the support ring 2664. An index 2628 is provided on the end face of the rotating cylinder 2621 opposite to the worm gear 2623. The scale 2667 and the index 2628 are used together to display the rotation amount of the rotating cylinder 2621. In other embodiments, the scale 2667 can also be provided on the end face of the rotating cylinder 2621 opposite to the worm gear 2623, and the scale 2667 is arranged circumferentially around the rotating cylinder 2621. The index 2628 is provided on the outer surface of the support ring 2664, and the scale 2667 and the index 2628 are used together to display the rotation amount of the rotating cylinder 2621.

[0043] The drive mechanism 265 also includes a rotating rod 2655, with a worm gear 2651 sleeved on the rotating rod 2655. The worm gear 2651 can rotate together with the rotating rod 2655, and can slide relative to the rotating rod 2655 along the axial direction of the rotating rod 2655. Optionally, the worm gear 2651 and the rotating rod 2655 are connected by a positioning groove and a positioning strip. The positioning groove is parallel to the axial direction of the rotating rod 2655, and the positioning strip is housed in the positioning groove to prevent the worm gear 2651 from rotating relative to the rotating rod 2655. The positioning groove is located on one of the worm gear 2651 and the rotating rod 2655, and the positioning strip is located on the other. The worm gear 2651 can move relative to the rotating rod 2655 along the axial direction of the rotating rod 2655. In this embodiment, a positioning groove is provided on the worm 2651, and a positioning strip is provided on the rotating rod 2655. Specifically, the worm 2651 has a sliding hole 2652 along its axial direction, and the opposite ends of the sliding hole 2652 pass through the opposite end faces of the worm 2651. The inner circumferential surface of the sliding hole 2652 of the worm 2651 has a positioning groove 2653, which extends along the length direction of the sliding hole 2652 and passes through the opposite end faces of the worm 2651. The outer circumferential surface of the rotating rod 2655 has a protruding positioning strip 2656, and the length direction of the positioning strip 2656 is parallel to the axial direction of the rotating rod 2655.

[0044] Optionally, the drive mechanism 265 further includes a first operating member 2657 connected to the rotating rod 2655. The rotation of the first operating member 2657 can drive the rotating rod 2655 to rotate. Specifically, the first operating member 2657 includes a fixed cylinder 2657a and an operating disc 2657b connected to one end of the fixed cylinder 2657. One end of the rotating rod 2655 is inserted into the inner cavity of the fixed cylinder 2657a, so that the rotating rod 2655 is fixedly connected to the fixed cylinder 2657a.

[0045] Please refer to the following: Figures 6-8 and Figures 15-20 The optical engine module 20 also includes an optical engine support 25 and an interpupillary distance adjustment component 27 connected to the optical engine support 25. The lens barrel base 22 of the optical engine module 20 is connected to one side of the optical engine support 25, and the rotating rod 2655 is rotatably connected to the optical engine support 25 and the lens barrel base 22. Specifically, the optical engine support 25 includes a main support 251 and a positioning frame 255 connected to one side of the main support 251. The optical engine module 20 is located on the side of the main support 251 away from the positioning frame 255. The rotating rod 2655 is rotatably connected to the main support 251 and the lens barrel base 22. The optical engine module 20 and the rotating rod 2655 are located on the same side of the main support 251, and the interpupillary distance adjustment component 27 is connected to the main support 251. In this embodiment, two lens barrel seats 22 are provided on the same side of the optical engine support 25, which are spaced apart from each other. That is, the two lens barrel seats 22 are located at opposite ends on the same side of the main support 251. The inner cavity of each connecting tube 221 accommodates a lens support tube 24. A lens barrel rotating member 262 is sleeved on each connecting tube 221. Two driving mechanisms 265 are respectively provided on the optical engine support 25, and the two driving mechanisms 265 respectively drive the two lens barrel rotating members 262 to rotate.

[0046] The main support 251 includes a first support portion 2511 and a second support portion 2515. The first support portion 2511 and the second support portion 2515 are respectively located on the same side of the main support 251. The rotating rod 2655 is movably inserted into the first guide slide portion 2232 and the first support portion 2511. In this embodiment, four first support portions 2511 are provided on one side of the main support 2511. Each connecting seat 223 is provided with a first support portion 2511 on opposite sides of the radial direction of the connecting cylinder 221. That is, two first support portions 2511 are respectively located on opposite sides of the connecting seat 223. The first guide slide portion 2232 of the connecting seat 223 is located between the two first support portions 2511. The opposite ends of the rotating rod 2655 are movably inserted through the two first support portions 2511, and the middle part of the rotating rod 2655 is inserted into the first guide slide hole 2234 of the first guide slide portion 2232. Specifically, the first support portion 2511 includes a first support block 2511a and a first positioning block 2511b connected to the end of the first support block 2511a. The first support block 2511a and the first positioning block 2511b form a first through groove 2511c, and the rotating rod 2655 is movably inserted through the first through groove 2511c. The first support block 2511a and the first support block 2511a can be fixedly connected by means of, but not limited to, screwing, snap-fitting, or gluing.

[0047] The second support part 2515 is located on the side of the main support 251 away from the first support part 2511. The main support 251 also includes a connecting shaft 2510, which is located on the side of the main support 251 away from the first support part 2511. The connecting shaft 2510 is connected to the second support part 2515. The second guide part 2237 is slidably sleeved on the connecting shaft 2510. The axis of the connecting shaft 2510 is parallel to the interpupillary distance direction of the two optomechanical modules 20. In this embodiment, the main support 251 has three second support portions 2515 on the side away from the first support portion 2511. Two of the second support portions 2515 are located at opposite ends of the main support 251, and the other second support portion 2515 is located in the middle of the main support 251. That is, the main support 251 has one second support portion 2515 between the two connecting seats 223, and the other two second support portions 2515 are located at opposite ends of the main support 251, so that each connecting seat 223 has a second support portion 2515 on opposite sides. The second guide portion 2237 of the connecting seat 223 is located between the two second support portions 2515. The connecting shaft 2510 is connected to the three second support portions 2515, and the second guide portion 2237 is slidably sleeved on the connecting shaft 2510 along the axial direction of the connecting shaft 2510. Specifically, the second support portion 2515 includes a second support block 2515a and a second positioning block 2515b connected to the end of the second support block 2515a. The second support block 2515a and the second positioning block 2515b form a second through groove 2515c, and the rotating rod 2655 is movably inserted through the first through groove 2515c. Optionally, the second positioning block 2515b and the second support block 2515a can be fixedly connected by means of, but not limited to, screwing, snap-fitting, or gluing.

[0048] The interpupillary distance adjustment assembly 27 includes an adjustment rack 271 connected to one of the lens barrel bases 22 and a drive gear 273 meshing with the adjustment rack 271. The drive gear 273 rotates relative to the adjustment rack 271 to drive the adjustment rack 271 to slide. The sliding of the adjustment rack 271 causes one of the lens barrel bases 22 to move closer to or further away from the other lens barrel base 22, thereby adjusting the interpupillary distance between the two lens barrel bases 22. The teeth of the adjusting rack 271 are arranged parallel to the interpupillary distance direction of the optical engine module 20. The rotation axis of the drive gear 273 is perpendicular to the interpupillary distance direction of the two optical engine modules 20. When the drive gear 273 rotates, it drives the adjusting rack 271 to move along the interpupillary distance direction parallel to the two optical engine modules 20, so that the lens barrel base 22 connected to the adjusting rack 271 moves relative to the other lens barrel base 22 along the interpupillary distance direction parallel to the two optical engine modules 20, thereby changing the interpupillary distance between the two lens barrel bases 22 to suit the needs of different users.

[0049] In this embodiment, two lens barrel mounts 22 are connected to one side of the optical engine support 25 at intervals. An adjusting rack 271 is located on the side of the optical engine support 25 away from the lens barrel mounts 22. The optical engine support 25 has a first guide groove 2516, which is parallel to the interpupillary distance direction of the two optical engine modules 20. The adjusting rack 271 and the corresponding lens barrel mount 22 are connected by a first positioning block and a first positioning hole. The first positioning block is located on one of the lens barrel mounts 22 and the adjusting rack 271, and the first positioning hole is located on the other of the lens barrel mounts 22 and the adjusting rack 271. The first positioning block is slidably inserted through the first guide groove 2516. In this embodiment, the adjusting rack 271 has a first positioning hole 2711 on the side facing the optical engine support 25, and the lens barrel base 22 has a first positioning block 226 on the side facing the optical engine support 25. The first positioning block 226 can pass through the first guide groove 2516 of the optical engine support 25 and be positioned in the first positioning hole 2711. In other embodiments, the adjusting rack 271 has a first positioning block on the side facing the optical engine support 25, and the lens barrel base 22 has a first positioning hole on the side facing the optical engine support 25. The first positioning block can pass through the first guide groove 2516 of the optical engine support 25 and be positioned in the first positioning hole. In other embodiments, the adjusting rack 271 and the corresponding lens barrel base 22 can also be connected by, but not limited to, screwing or gluing.

[0050] like Figure 17 and Figure 19As shown, the adjusting rack 271 is rectangular and includes multiple teeth on one side, arranged along its length. The adjusting rack 271 is connected to the optical engine support 25 via an adjusting groove and a first guide slide. The adjusting groove is located on one of the adjusting rack 271 and the optical engine support 25, and the first guide slide is located on the other. The length of the adjusting groove is parallel to the interpupillary distance direction of the two optical engine modules 20. In this embodiment, the adjusting rack 271 has an adjusting groove 2712 along its sliding direction, and the main support 251 has a first guide slide 2517 on the side opposite to the lens barrel base 22, which is slidably accommodated in the adjusting groove 2712. In other embodiments, the main support 251 has an adjustment groove on its side away from the lens barrel base 22 along the sliding direction of the adjustment rack 271, and the adjustment rack 271 has a first guide slide portion slidably accommodated in the adjustment groove. Specifically, the first guide slide portion 2517 includes two first connecting blocks 2517a spaced apart from each other on the main support 251 and a first snap-fit ​​piece 2517b located between the two first connecting blocks 2517a, and each first connecting block 2517a has a first connecting hole 2517c; the adjustment rack 271 has a guide slide flange 2712a around the adjustment groove 2712, and the adjustment rack 271 is connected to the main support 251 through a first connecting assembly 2713; the first connecting assembly 2713 includes a first guide slide member 2714 and a first connecting member 2715, the first guide slide member 2714 is a rectangular block, the first guide slide member 2714 includes a first guide slide strip 2714a located in its middle and a first guide slide strip 2714a located in its middle. The first stop flange 2714b on opposite sides, the first guide strip 2714a is slidably accommodated in the adjustment groove 2712 of the first guide part 2517, the first stop flange 2714b is slidably overlapped with the guide flange 2712a, and the first guide strip 2714a has a first slot 2714c in the middle; the first connector 2715 is a rectangular connecting piece, the length of the first connector 2715 is greater than the length of the first guide part 2714, the first connector 2715 is provided with two first through holes 2715a and a first slot 2715b, the two first through holes 2715a are located at opposite ends of the first connector 2715, and the first slot 2715b is located between the two first through holes 2715a.

[0051] The drive gear 273 and the optical engine support 25 are connected by a first rotating shaft and a first shaft hole. The first rotating shaft is located on one of the drive gear 273 and the optical engine support 25, and the first shaft hole is located on the other. The drive gear 273 is rotatably connected to the first rotating shaft, and the axial direction of the first rotating shaft is perpendicular to the interpupillary distance direction of the optical engine module 20. In this embodiment, the main support 251 has a first rotating shaft 2512 near the first guide slide 2517 on the side facing the adjusting rack 271. The axis of the first rotating shaft 2512 is perpendicular to the interpupillary distance direction of the two optical engine modules 20. The drive gear 273 has a first shaft hole 2734 along its axial direction. The first rotating shaft 2512 is inserted into the first shaft hole 2734, and the drive gear 273 can rotate around the first rotating shaft 2512. In other embodiments, the main support 251 may have a shaft hole near the first guide slide 2517 on the side facing the adjusting rack 271. The axis of the shaft hole is perpendicular to the interpupillary distance direction of the optomechanical module 20. The drive gear 273 has a rotating shaft along its axial direction, which is rotatably inserted into the shaft hole. Specifically, the drive gear 273 includes a connecting part 2731 and a gear body 2733 disposed on one side of the connecting part 2731. The first shaft hole 2734 passes through the connecting part 2731 and the gear body 2733 along the axial direction of the gear body 2733. The connecting part 2731 has a snap-fit ​​part 2735 on the side facing away from the gear body 2733.

[0052] Optionally, the interpupillary distance adjustment assembly 27 further includes a second operating member 274, which is connected to the drive gear 273. Rotation of the second operating member 274 drives the drive gear 273 to rotate. The second operating member 274 and the drive gear 273 can be fixedly connected by, but not limited to, screwing, snap-fitting, or adhesive bonding. In this embodiment, the second operating member 274 is an adjustment disc with snap-fit ​​holes 2742 along its axis. A snap-fit ​​part 2735 can snap into the snap-fit ​​holes 2742 of the second operating member 274, thereby fixing the drive gear 273 to the second operating member 274. Optionally, the interpupillary distance adjustment assembly 27 further includes a ring washer 275, which is sleeved on the first rotating shaft 2512 and clamped between the drive gear 273 and the main support 251. Optionally, the outer peripheral surface of the second operating member 274 is provided with anti-slip texture.

[0053] like Figures 16-20As shown, the interpupillary distance adjustment assembly 27 also includes a linkage mechanism 276. The linkage mechanism 276 is connected to the two lens barrel mounts 22. The two lens barrel mounts 22 can move closer or further apart synchronously through the linkage mechanism 276 to achieve interpupillary distance adjustment of the two optical engine modules 20. The linkage mechanism 276 and the two lens barrel mounts 22 are located on the same side of the main support 251. The linkage mechanism 276 is connected to the main support 251 and is located between the main support 251 and the lens barrel mounts 22. Specifically, the linkage mechanism 276 includes a first linkage rack 2761, a second linkage rack 2764, and a linkage gear 2767. The first linkage rack 2761 and the second linkage rack 2764 are respectively meshed with the linkage gear 2767. The linkage gear 2767 is rotatably connected to the optical engine bracket 25. The first linkage rack 2761 and the second linkage rack 2764 are respectively connected to two lens barrel mounts 22. When the linkage gear 2767 rotates, the first linkage rack 2761 and the second linkage rack 2764 can slide synchronously to drive the two lens barrel mounts 22 to move closer to each other or further away from each other. The first linkage rack 2761 and the second linkage rack 2764 slide along the interpupillary distance direction parallel to the optical engine module 20.

[0054] The linkage gear 2767 and the optical engine support 25 are connected via a second rotating shaft and a second shaft hole. The second rotating shaft is located on one of the linkage gear 2767 and the optical engine support 25, and the second shaft hole is located on the other. The linkage gear 2767 is rotatably connected to the second rotating shaft, and the axial direction of the second rotating shaft is parallel to the axial direction of the lens barrel base 22. In this embodiment, the main support 251 has a second rotating shaft 2514 between the two lens barrel bases 22. The axis of the second rotating shaft 2514 is parallel to the axis of the first rotating shaft 2512. The linkage gear 2767 has a second shaft hole 2767a along its axial direction, and the second rotating shaft 2514 is inserted into the second shaft hole 2767a, allowing the linkage gear 2767 to rotate around the second rotating shaft 2514. In other embodiments, the main support 251 has a second shaft hole between the two lens barrel seats 22, the axis of the second shaft hole being parallel to the axis of the lens barrel seat 22. The linkage gear 2767 has a second rotating shaft along its axial direction, which is rotatably inserted into the second shaft hole. Optionally, the linkage gear 2767 is connected to the second rotating shaft 2514 via a positioning ring 2767b.

[0055] The first linkage rack 2761 is connected to one of the lens barrel bases 22 via a second positioning block and a second positioning hole. The second positioning block is located on one of the first linkage rack 2761 and one of the lens barrel bases 22, and the second positioning hole is located on the other of the first linkage rack 2761 and one of the lens barrel bases 22. In this embodiment, the first linkage rack 2761 has a second positioning hole 2762 at one end near the linkage gear 2767, and the lens barrel base 22 has a second positioning block 227 on the side away from the connecting cylinder 221. The second positioning block 227 is inserted into the second positioning hole 2762 so that the first linkage rack 2761 is connected to the lens barrel base 22, that is, the first linkage rack 2761 and the lens barrel base 22 can move together relative to the main support 251. In other embodiments, a second positioning block is provided at one end of the first linkage rack 2761 near the linkage gear 2767, and a second positioning hole is provided on the side of the lens barrel base 22 opposite to the connecting cylinder 221. The second positioning block is inserted into the second positioning hole so that the first linkage rack 2761 is connected to the lens barrel base 22. In other embodiments, the first linkage rack 2761 and one of the lens barrel bases 22 can also be connected by, but not limited to, screwing or gluing.

[0056] The second linkage rack 2764 and the other lens barrel base 22 are connected by a third positioning block and a third positioning hole. The third positioning block is located on one of the second linkage rack 2764 and the other lens barrel base 22, and the third positioning hole is located on the other of the second linkage rack 2764 and the other lens barrel base 22. In this embodiment, the second linkage rack 2764 has a third positioning hole 2765 at one end near the linkage gear 2767, and the other lens barrel base 22 has a third positioning block 228 on the side away from the connecting cylinder 221. The third positioning block 228 is inserted into the third positioning hole 2765 so that the second linkage rack 2764 is connected to the lens barrel base 22, that is, the second linkage rack 2764 and the other lens barrel base 22 can move together relative to the main support 251. In other embodiments, a third positioning block is provided at one end of the second linkage rack 2764 near the linkage gear 2767, and a third positioning hole is provided on the side of the lens barrel base 22 opposite to the connecting cylinder 221. The third positioning block is inserted into the third positioning hole so that the second linkage rack 2764 is connected to the lens barrel base 22. In other embodiments, the second linkage rack 2764 and the other lens barrel base 22 can also be connected by, but not limited to, screwing or gluing.

[0057] like Figure 20As shown, the first linkage rack 2761 is strip-shaped and includes a plurality of first teeth on one side, arranged along the length of the first linkage rack 2761. The first linkage rack 2761 and the optical engine support 25 are slidably connected by a first sliding groove and a second guide sliding part. The first sliding groove is provided in one of the optical engine support 25 and the first linkage rack 2761, and the second guide sliding part is provided in the other of the optical engine support 25 and the first linkage rack 2761. The length of the first sliding groove is parallel to the interpupillary distance direction of the optical engine module 20. In this embodiment, the first linkage rack 2761 has a first sliding groove 2763 along its sliding direction, and the main support 251 has a second guide sliding part 2518 on the side facing the lens barrel base 22. The second guide sliding part 2518 is slidably accommodated in the first sliding groove 2763. In other embodiments, the main support 251 has a first sliding groove on the side facing the lens barrel base 22 along the sliding direction of the first linkage rack 2761, and the first linkage rack 2761 has a second guide portion that can be slidably accommodated in the first sliding groove. Specifically, the second guide slide 2518 includes two second connecting blocks 2518a spaced apart from each other on the main bracket 251 and a second snap-fit ​​piece 2518b located between the two second connecting blocks 2518a. Each second connecting block 2518a has a second connecting hole 2518c. The first linkage rack 2761 has a first guide flange 2763a around the first sliding groove 2763. The first linkage rack 2761 is connected to the main bracket 251 through the second connecting assembly 2716. The second connecting assembly 2716 includes a second guide slide 2717 and a second connecting piece 2718. The second guide slide 2717 is a rectangular block and includes a second guide strip 2717a located in its middle and a second guide strip 2718a located in its middle. The second stop flanges 2717b on opposite sides of 17a, the second guide strip 2717a is slidably accommodated in the first sliding groove 2763 of the first linkage rack 2761, the second stop flange 2717b is slidably overlapped with the first guide flange 2763a, and the second guide strip 2717a has a second slot 2717c in the middle; the second connector 2718 is a rectangular connecting piece, the length of the second connector 2718 is greater than the length of the second guide strip 2717, the second connector 2718 is provided with two second through holes 2718a and a second snap-fit ​​groove 2718b, the two second through holes 2718a are located at opposite ends of the second connector 2718, and the second snap-fit ​​groove 2718b is located between the two second through holes 2718a.

[0058] The second linkage rack 2764 is strip-shaped and includes a plurality of second teeth on one side, arranged along its length. The second linkage rack 2764 is slidably connected to the optical engine support 25 via a second sliding groove and a third guide slide. The second sliding groove is located in one of the optical engine support 25 and the second linkage rack 2764, and the third guide slide is located in the other. The length of the second sliding groove is parallel to the interpupillary distance direction of the two optical engine modules 20. In this embodiment, the second linkage rack 2764 has a second sliding groove 2766 along its sliding direction, and the main support 251 has a third guide slide 2519 on the side facing the lens barrel base 22, which is slidably accommodated in the second sliding groove 2766. In other embodiments, the main support 251 has a second sliding groove along the sliding direction of the second linkage rack 2764 on the side facing the lens barrel base 22. The second linkage rack 2764 has a third guide portion that can be slidably accommodated in the second sliding groove. Specifically, the third guide portion 2519 includes two third connecting blocks 2519a spaced apart from each other on the main support 251 and a third snap-fit ​​piece 2519b located between the two third connecting blocks 2519a. Each third connecting block 2519a has a third connecting hole 2519c. The second linkage rack 2764 has a second guide flange 2766a around the second sliding groove 2766. The second linkage rack 2764 is connected to the main support 251 through the second connecting assembly 2716.

[0059] like Figures 3-5 As shown, the first housing 52 has a first mounting space 522 on the side facing the second housing 54, and a second mounting space 524 on the side of the first housing 52 away from the second housing 54. The first mounting space 522 communicates with the second mounting space 524. The first mounting space 522 is used to accommodate the optical engine module 20, and the second mounting space 524 is used to accommodate the decorative part 70. Support cylinders 525 are respectively provided on the opposite end walls of the first housing 52, and the inner cavity of the support cylinder 525 communicates with the first mounting space 522. The second housing 54 has two through holes 542 corresponding to the two lens barrel bases 22 of the optical engine module 20, which are used to accommodate the two lens barrel bases 22 respectively. The mask 80 includes a cover cylinder 802 for covering the periphery of the user's eyes and a connecting portion 804 away from the cover cylinder 802. The cover cylinder 802 has through grooves passing through its opposite sides, and the connecting portion 804 is located around the through grooves.

[0060] Please refer to the following: Figures 6-20When assembling the optomechanical module 20, the lens support cylinder 24 carrying the lens assembly is coaxially installed in the inner cavity of the connecting cylinder 221, so that the multiple connecting holes of the lens support cylinder 24 are respectively aligned with the multiple guide grooves 2212 of the connecting cylinder 221; one end of the multiple guide rods 2625 is inserted through the multiple guide grooves 2212 and into the multiple connecting holes of the lens support cylinder 24; the lens barrel rotating component 262 is rotatably sleeved on the connecting cylinder 221, so that the ends of the multiple guide rods 2625 away from the lens support cylinder 24 are respectively inserted into the multiple spiral grooves 262. 6; Place the two light-transmitting covers 266 on the connecting rings 2213 of the two connecting cylinders 221 respectively, so that the positioning flanges 2215 of the connecting cylinders 221 are engaged in the positioning grooves 2665 of the light-transmitting covers 266. At this time, the light-transmitting covers 266 are fixedly connected to the connecting cylinders 221, and the lens barrel rotating component 262 can rotate around the connecting cylinders 221, so that the guide rod 2625 can move along the corresponding spiral groove 2626. At the same time, the guide rod 2625 can slide along the corresponding guide groove 2212, so as to drive the lens support cylinder 24 to move axially relative to the connecting cylinders 221.

[0061] The linkage gear 2767 is fitted onto the second rotating shaft 2514, the first linkage rack 2761 is fitted onto the second guide slide 2518, and the second linkage rack 2764 is fitted onto the third guide slide 2519, so that the first linkage rack 2761 and the second linkage rack 2764 respectively mesh with the linkage gear 2767; the positioning ring 2767b is placed on the side of the linkage gear 2767 away from the main bracket 251, and the locking fastener, such as a screw, passes through the positioning ring 2767b and locks it in place. The second rotating shaft 2514 is used to rotatably connect the linkage gear 2767 to the second rotating shaft 2514; two second guide slide members 2717 are respectively housed in the first sliding groove 2763 of the first linkage rack 2761 and the second sliding groove 2766 of the second linkage rack 2764, wherein the second stop flange 2717b of one second guide slide member 2717 slidably overlaps the first guide flange 2763a, and the second stop flange 271 of the other second guide slide member 2717... 7b is slidably connected to the second guide flange 2766a; the second connecting block 2518a and the third connecting block 2519a are respectively inserted into the second slots 2717c of the two second guide members 2717; the two second connecting members 2718 are respectively housed in the first sliding groove 2763 of the first linkage rack 2761 and the second sliding groove 2766 of the second linkage rack 2764, such that the two second through holes 2718a of one of the second connecting members 2718 are respectively aligned with the two second connecting holes 2518c of the second guide part 2518, and two locking fasteners such as screws pass through the two second through holes 2718a and are locked in the two second connecting holes 2518c; the two second through holes 2718a of the other second connecting member 2718 are respectively aligned with the two third connecting holes 2519c of the third guide part 2519, and two locking fasteners such as screws pass through the two second through holes 2718a and are locked in the two third connecting holes 2519c. At this time, the first linkage rack 2761 and the second linkage rack 2764 can slide synchronously along the interpupillary distance direction parallel to the optomechanical module 20.

[0062] The two lens barrel bases 22 are respectively attached to the side of the main bracket 251 where the linkage mechanism 276 is installed, with the side opposite to the light-transmitting cover 266. The second positioning block 227 of one lens barrel base 22 is inserted into the second positioning hole 2762 of the first linkage rack 2761, and the third positioning block 228 of the other lens barrel base 22 is inserted into the third positioning hole 2765 of the second linkage rack 2764. The end of the rotating rod 2655 on the lens barrel base 22 passes through the first guide groove 2516. Two first guide slides 2232 of one connecting seat 223 are located between two first support parts 2511 at one end of the main bracket 251, and two second guide slides 2237 of one connecting seat 223 are located between two second support parts 2515 of the main bracket 251; two first guide slides 2232 of the other connecting seat 223 are located between two first support parts 2511 at the other end of the main bracket 251, and two second guide slides 2237 of the connecting seat 223 are located between two second support parts 2515 of the main bracket 251. Two worm gears 2651 are respectively placed in the clearance grooves 2236 of the two lens barrel bases 22. One rotating rod 2655 is inserted into the first guide hole 2234 of one of the connecting seats 223, the first through grooves 2511c of the corresponding two first support parts 2511, and the sliding hole 2652 of the corresponding worm gear 2651, so that the positioning strip 2656 of the rotating rod 2655 is accommodated in the positioning groove 2653 of the worm gear 2651. The other rotating rod 2655 is inserted into the first guide hole 2234 of the other connecting seat 223, the first through grooves 2511c of the corresponding two first support parts 2511, and the sliding hole 2652 of the corresponding worm gear 2651, so that the positioning strip 2656 of the rotating rod 2655 is accommodated in the positioning groove 2653 of the worm gear 2651. The connecting shaft 2510 is inserted into the second through groove 2515c of the second support portion 2515 of the main bracket 251 and the second guide hole 2238 of the second guide portion 2237 of the two connecting seats 223. At this time, the two lens barrel seats 22 can slide synchronously along the connecting shaft 2510 and the rotating rod 2655, moving closer or further apart. The worm gear 2651 can rotate with the rotating rod 2655 in the clearance groove 2236. The opposite end faces of the worm gear 2651 rotatably abut against the opposite end faces of the clearance groove 2236. At the same time, the worm gear 2651 slides relative to the rotating rod 2655, that is, the positioning strip 2656 slides in the positioning groove 2653. Within the diopter adjustment range of the optomechanical module 20, the positioning strip 2656 is always located in the positioning groove 2653, thereby preventing the worm gear 2651 from rotating relative to the rotating rod 2655 after disengaging from the positioning strip 2656, thus ensuring that the diopter adjustment is satisfied.

[0063] The adjusting rack 271 is fitted onto the first guide slide portion 2517 of the main bracket 251, so that the end of the first positioning block 226 is inserted into the first positioning hole 2711 of the adjusting rack 271; the first guide slide 2714 is housed in the adjusting groove 2712 of the adjusting rack 271, the first stop flange 2714b is slidably attached to the guide slide flange 2712a, and the first snap-fit ​​piece 2517b is inserted into the first snap-fit ​​groove 2714c of the first guide slide 2714; the first connector 2715 is housed in the adjusting groove 2712 of the adjusting rack 271, so that the two first through holes 2715a of the first connector 2715 are respectively aligned with the two first connecting holes 2517c of the first guide slide portion 2517; and two locking fasteners, such as screws, pass through the two first through holes 2715a and are locked into the two first connecting holes 2517c. At this time, the adjusting rack 271 can slide synchronously along the interpupillary distance direction parallel to the two optical engine modules 20. The ring washer 275 is fitted onto the first rotating shaft 2512 of the main bracket 251, and the drive gear 273 is rotatably fitted onto the first rotating shaft 2512 so that the gear body 2733 meshes with the adjusting rack 271. The second operating member 274 is fitted onto the snap-fit ​​portion 2735 of the drive gear 273, that is, the snap-fit ​​portion 2735 snaps into the snap-fit ​​hole 2742. A locking fastener, such as a screw, is passed through the first shaft hole 2734 of the drive gear 273 and locked to the first rotating shaft 2512, so that the drive gear 273 and the second operating member 274 can rotate together around the first rotating shaft 2512. The positioning frame 255 is connected to the side of the main bracket 251 opposite to the connecting seat 223 to prevent the second operating member 274 from detaching from the optical engine bracket 25; the positioning frame 255 and the main bracket 251 can be fixedly connected by snap-fit ​​or screw connection. The optical engine module 20 is placed in the first mounting space 522 of the first housing 52, and the second housing 54 is fastened to the first housing 52, so that the two lens barrel bases 22 of the optical engine module 20 are respectively inserted into the two through holes 542. The connection between the first housing 52 and the second housing 54 can be achieved by, but is not limited to, screwing, snap-fitting, or gluing. At this time, part of the second operating member 274 is exposed outside the housing 50, and the ends of the two rotating rods 2655 away from the lens barrel base 22 are respectively aligned with the inner cavities of the two support cylinders 525 of the first housing 52. The fixing cylinders 2657 of the two first operating members 2657 are respectively inserted into the inner cavities of the two support cylinders 525 from the outside of the first housing 52, so that the two rotating rods 2655 are respectively inserted into the inner cavities of the two fixing cylinders 2657a, so that the two rotating rods 2655 are respectively fixedly connected to the two first operating members 2657, and the operating disks 2657b of the first operating members 2657 are exposed outside the first housing 52. The decorative element 70 is housed in the second mounting space 524 of the first housing 52, and the decorative element 70 is fixedly connected to the first housing 52. Optionally, the decorative element 70 and the first housing 52 can be fixedly connected by means of, but not limited to, snap-fit, screw-fit or adhesive.The connecting part 804 of the mask 80 is connected to the side of the second housing 54 away from the first housing 52. Optionally, the connecting part 804 and the second housing 54 can be fixedly connected by means of, but not limited to, snap-fit, screw-fit or glue-fit. At this time, the light-transmitting cover 266 of the optomechanical module 20 is accommodated in the through groove of the mask 80.

[0064] To prevent the first operating component 2657 from falling off after being assembled into the housing 50, a snap-fit ​​is used between the first operating component 2657 and the first housing 52 to prevent the first operating component 2657 from falling off the first housing 52. The snap-fit ​​is provided on one of the first operating component 2657 and the first housing 52. In this embodiment, a flexible snap-fit ​​2657c protrudes from one end of the fixed cylinder 2657a away from the operating disc 2657b. When the fixed cylinder 2657a is inserted into the inner cavity of the support cylinder 525 of the first housing 52, the rotating rod 2655 is inserted into the inner cavity of the fixed cylinder 2657a, and the snap-fit ​​2657c stops at the end face of the support cylinder 525 to prevent the first operating component 2657 from falling off the first housing 52. In other embodiments, the support cylinder 525 has a buckle protruding into its inner cavity, and the outer peripheral surface of the fixing cylinder 2657a has a groove. When the fixing cylinder 2657a is inserted into the inner cavity of the support cylinder 525 of the first housing 52, the rotating rod 2655 is inserted into the inner cavity of the fixing cylinder 2657a, and the buckle is positioned in the groove to prevent the first operating member 2657 from disengaging from the first housing 52. Optionally, the rotating rod 2655 and the fixing cylinder 2657a can be fixedly connected by means of, but not limited to, adhesive bonding or snap-fitting.

[0065] After the user puts on the head-mounted device, if the interpupillary distance (IPD) of the head-mounted device needs to be adjusted, the user manually operates the second operating component 274 to rotate, thereby driving the drive gear 273 to rotate relative to the optical engine support 25. The rotation of the drive gear 273 causes the adjusting rack 271 to slide relative to the optical engine support 25. The sliding of the adjusting rack 271 causes the lens barrel base 22 connected to it to slide together. The two lens barrel bases 22 move synchronously away from or towards each other through the linkage mechanism 276 until the IPD of the head-mounted device is suitable for the user. If the refractive power of the head-mounted device needs to be adjusted, the user manually operates the operating disk 2657b to rotate, causing the rotating rod 2655 and its worm gear 2651 to rotate together, thereby driving the worm wheel 2623 to rotate around the connecting cylinder 221. This causes the guide rod 2625 to slide in the corresponding spiral groove 2626 and guide groove 2212, thereby causing the lens support cylinder 24 to move axially in the inner cavity of the corresponding connecting cylinder 221, thereby changing the refractive power of the lens assembly in the lens support cylinder 24 until it is suitable for the user's eyes. Users can simultaneously operate two control panels 2657b to adjust the diopter of the head-mounted device, thereby adjusting the diopter of both optical engine modules 20 at the same time; users can also operate one control panel 2657b to adjust the diopter of a single optical engine module 20.

[0066] The head-mounted device of this application allows for direct adjustment of refractive power and interpupillary distance while worn on the user's head. Users can adjust the refractive power of their left and right eyes separately by operating two first operating components 2657 according to their actual visual acuity, thus optimizing the refractive power of the head-mounted device. This eliminates the need to remove the head-mounted device from the user's head, simplifying the adjustment process, improving the convenience of use, and enhancing the user experience. Furthermore, within the interpupillary distance adjustment range of the head-mounted device, refractive power adjustment can be achieved at any interpupillary distance. In addition, the diopter adjustment of the optical engine module 20 is achieved by rotating the worm gear 2651 through the rotating rod 2655, and the interpupillary distance between the two optical engine modules 20 of the head-mounted device is guided by the rotating rod 2655, which does not affect the interpupillary distance adjustment of the two optical engine modules 20. Therefore, the rotating rod 2655 is used for both diopter adjustment and interpupillary distance adjustment, saving components, reducing the weight and stacking size of the head-mounted device, and further improving the user experience.

[0067] The above are the embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the embodiments of the present invention, and these improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. An optomechanical module, characterized in that, The optomechanical module includes: A lens barrel base, the lens barrel base including a connecting cylinder; Optical engine support, with the two lens barrel mounts connected to one side of the optical engine support; A lens support cylinder, wherein the lens support cylinder is housed within the inner cavity of the connecting cylinder, and the lens support cylinder and the connecting cylinder are coaxial; and The refractive power adjustment assembly includes a lens barrel rotating component and a drive mechanism. The rotating component of the lens barrel includes a rotating cylinder rotatably sleeved on the connecting cylinder, a worm gear connected to the rotating cylinder, and a guide rod. The connecting cylinder, the rotating cylinder, and the worm gear are coaxial. The inner circumferential surface of the rotating cylinder is provided with a helical groove. One end of the guide rod is connected to the lens support cylinder, and the other end of the guide rod is accommodated in the helical groove. The driving mechanism includes a rotating rod and a worm gear meshing with the worm wheel. The worm gear is sleeved on the rotating rod, and the rotating rod is rotatably connected to the optical engine support and the lens barrel base. The worm gear can rotate together with the rotating rod. The rotation of the worm gear drives the worm wheel to rotate around the connecting cylinder. The rotating cylinder rotates around the connecting cylinder along with the worm wheel, so that the guide rod moves along the helical groove. At the same time, the guide rod moves along the axial direction of the connecting cylinder, so that the lens support cylinder moves along its axial direction. The two lens barrel bases can slide synchronously along the rotating rod and move closer or further apart from each other.

2. The optomechanical module according to claim 1, characterized in that, The connecting cylinder wall is provided with a guide groove along its axial direction, the guide rod slides through the guide groove, and the end of the guide rod away from the connecting cylinder is accommodated in the spiral groove.

3. The optomechanical module according to claim 2, characterized in that, The connecting cylinder has two or more guide grooves on its wall, the diopter adjustment assembly includes two or more guide rods, the inner circumferential surface of the rotating cylinder has two or more spiral grooves, the two or more guide rods are respectively inserted into the two or more guide grooves, and the ends of the two or more guide rods away from the lens support cylinder are respectively accommodated in the two or more spiral grooves.

4. The optomechanical module according to claim 3, characterized in that, Two or more of the guide grooves are arranged around the circumference of the connecting cylinder, two or more of the guide rods are arranged around the circumference of the lens support cylinder, and two or more of the spiral grooves are arranged around the circumference of the rotating cylinder.

5. The optomechanical module according to claim 1, characterized in that, It also includes a light-transmitting cover connected to the open end of the connecting cylinder, the rotating cylinder being able to rotate relative to the light-transmitting cover, and a scale being provided between the light-transmitting cover and the rotating cylinder, the scale being used to display the amount of rotation of the rotating cylinder.

6. The optomechanical module according to claim 1, characterized in that, The worm and the rotating rod are connected by a positioning groove and a positioning strip. The positioning groove is parallel to the axial direction of the rotating rod and is located on one of the worm and the rotating rod. The positioning strip is located on the other of the worm and the rotating rod. The worm can rotate with the rotating rod and can move relative to the rotating rod along the axial direction of the rotating rod.

7. The optomechanical module according to claim 1, characterized in that, The driving mechanism further includes a first operating member connected to the rotating rod, the rotation of which can drive the rotating rod to rotate.

8. The optomechanical module according to claim 1, characterized in that, The lens barrel base also includes a connecting seat, the connecting cylinder is connected to the side of the connecting seat away from the optical engine support, the connecting seat includes a first guide slide, the optical engine support includes a first support, the connecting seat is provided with the first support on opposite sides of the connecting cylinder along the radial direction, and the rotating rod is movably inserted into the first guide slide and the support.

9. The optomechanical module according to claim 8, characterized in that, The connecting seat is provided with a clearance groove, and the worm gear is rotatably accommodated in the clearance groove. The opposite end faces of the worm gear are rotatably abutted against the opposite end faces of the clearance groove.

10. The optomechanical module according to claim 1, characterized in that, The optical engine support has two lens barrels spaced apart on the same side. The inner cavity of the connecting tube of each lens barrel houses the lens support tube. The optical engine module also includes an interpupillary distance adjustment assembly. The interpupillary distance adjustment assembly includes an adjustment rack connected to one of the lens barrels and a drive gear meshing with the adjustment rack. The drive gear rotates relative to the adjustment rack to move one of the lens barrels closer to or further away from the other lens barrel, thereby adjusting the interpupillary distance between the two lens barrels.

11. The optomechanical module according to claim 10, characterized in that, The adjusting rack is located on the side of the optical engine support opposite to the lens barrel base. The optical engine support has a first guide groove, which is parallel to the interpupillary distance direction of the optical engine module. The adjusting rack is connected to one of the lens barrel bases through a first positioning block and a first positioning hole. The first positioning block is located in one of the lens barrel bases and the adjusting rack, and the first positioning hole is located in the other of the lens barrel bases and the adjusting rack. The first positioning block slides through the first guide groove.

12. The optomechanical module according to claim 10, characterized in that, The adjusting rack and the optomechanical bracket are connected by an adjusting groove and a first guide slide. The adjusting groove is provided on one of the adjusting rack and the optomechanical bracket, and the first guide slide is provided on the other of the adjusting rack and the optomechanical bracket. The length direction of the adjusting groove is parallel to the interpupillary distance direction of the optomechanical module.

13. The optomechanical module according to claim 10, characterized in that, The optical engine support also includes a guide shaft, which is located on the side of the two lens barrels away from the adjusting rack. The guide shaft is parallel to the interpupillary distance direction, and the two lens barrels are slidably connected to the guide shaft along the axial direction of the guide shaft.

14. The optomechanical module according to claim 10, characterized in that, The drive gear and the optical engine bracket are rotatably connected by a first rotating shaft and a first shaft hole. The first rotating shaft is located on one of the optical engine bracket and the drive gear, and the first shaft hole is located on the other of the optical engine bracket and the drive gear. The interpupillary distance adjustment assembly also includes a second operating member, which is connected to the drive gear. The axial direction of the rotating shaft is perpendicular to the interpupillary distance direction.

15. The optomechanical module according to claim 10, characterized in that, The interpupillary distance adjustment assembly also includes a linkage mechanism, which is connected to the two lens barrel mounts. The two lens barrel mounts can move closer to each other or further apart synchronously through the linkage mechanism.

16. The optomechanical module according to claim 15, characterized in that, The linkage mechanism includes a first linkage rack, a second linkage rack, and a linkage gear. The first linkage rack and the second linkage rack are respectively meshed with the linkage gear. The linkage gear is rotatably connected to the optical engine bracket. The first linkage rack and the second linkage rack are respectively connected to the two lens barrel bases. The first linkage rack and the second linkage rack can slide along a direction parallel to the interpupillary distance.

17. The optomechanical module according to claim 16, characterized in that, The optical engine support has a second rotating shaft between the two lens barrel bodies. The second rotating shaft is parallel to the axis of the lens barrel body. The linkage gear is rotatably connected to the second rotating shaft. The first linkage rack is connected to one of the lens barrel bodies through a second positioning block and a second positioning hole. The second positioning block is located in one of the first linkage rack and one of the lens barrel bodies, and the second positioning hole is located in the other of the first linkage rack and one of the lens barrel bodies. The second linkage rack is connected to the other lens barrel body through a third positioning block and a third positioning hole. The third positioning block is located in one of the second linkage rack and the other lens barrel body, and the third positioning hole is located in the other of the second linkage rack and the other lens barrel body.

18. The optomechanical module according to claim 16, characterized in that, The optical engine support and the first linkage rack are slidably connected via a first sliding groove and a second guide sliding part. The first sliding groove is provided in one of the optical engine support and the first linkage rack, and the second guide sliding part is provided in the other of the optical engine support and the first linkage rack. The optical engine support and the second linkage rack are slidably connected via a second sliding groove and a third guide sliding part. The second sliding groove is provided in one of the optical engine support and the second linkage rack, and the third guide sliding part is provided in the other of the optical engine support and the second linkage rack. The length directions of the first sliding groove and the second sliding groove are parallel to the interpupillary distance direction of the two lens barrel mounts.

19. A head-mounted device, characterized in that, The head-mounted device includes an optomechanical module and a housing as described in any one of claims 1-18, wherein the optomechanical module is disposed in the inner cavity of the housing, and the first operating member of the drive mechanism protrudes from the housing.

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