Pupil distance adjusting device and AR glasses

Abstract

The utility model belongs to the technical field of AR equipment, and discloses an interpupillary distance adjusting device and AR glasses. The interpupillary distance adjusting device comprises a screw rod, a butt joint cylinder, a limiting piece and two connecting pieces, the two connecting pieces are fixed to two optical assemblies of the AR glasses respectively, the two connecting pieces are connected with the butt joint cylinder in a sliding mode, and the moving directions of the two connecting pieces can be limited; the two connecting pieces are in threaded connection with the screw rod, as the screwing directions of threads at the two ends of the screw rod are opposite, when the screw rod rotates, the two connecting pieces can be driven to synchronously move oppositely or oppositely relative to the butt joint cylinder, then the distance between the two optical assemblies is changed, the structure is simple, adjustment is smooth, the actual pupil distance needed by a wearer can be accurately adjusted, and the wearing experience feeling is improved; and during adjustment, the limiting pieces slide in the corresponding sliding grooves, and the design of the limiting pieces and the sliding grooves can limit the relative movement distance of the connecting pieces and the butt-joint cylinder so as to prevent the connecting pieces and the butt-joint cylinder from being separated from each other, and the structural reliability is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of AR device technology, and in particular to an interpupillary distance adjustment device and AR glasses. Background Technology

[0002] VR glasses are wearable technology products that completely block out the user's hearing and vision through a head-mounted display device to simulate a virtual environment. VR glasses have the function of adjusting interpupillary distance to ensure that the optical center of the VR glasses is aligned with the center of the wearer's pupils, reducing problems such as visual blurring and dizziness caused by interpupillary distance mismatch.

[0003] AR glasses are smart wearable devices that use optical technology to overlay virtual information onto the real field of vision. In the current technology, because AR glasses usually need to be lightweight and it is inconvenient to integrate a complex interpupillary distance adjustment system, there are currently no AR glasses with the function of adjusting interpupillary distance.

[0004] In other words, existing AR glasses do not have interpupillary distance adjustment function. If the optical center of the AR glasses deviates significantly from the center of the user's through-hole, it will cause visual blurring and dizziness. Utility Model Content

[0005] The purpose of this invention is to provide an interpupillary distance adjustment device and AR glasses, so as to set the interpupillary distance adjustment device on the AR glasses, and to ensure that the structure is simple and lightweight as much as possible, so as to smoothly and accurately adjust to the actual interpupillary distance required by the wearer, thereby improving the wearing experience.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides an interpupillary distance adjustment device, which includes a screw, a docking cylinder, a limiting member and two connecting members. The screw has opposite threads at both ends, and the two ends of the screw are respectively threaded to the two connecting members. The docking cylinder is sleeved on the screw. One end of the connecting member is slidably connected to the docking cylinder, and the other end of the connecting member is used to fix it to the optical components of AR glasses.

[0008] The limiting member is fixed to one of the docking cylinder and each of the connecting members, and the other is provided with a sliding groove corresponding to the limiting member. The rotation of the screw drives the two connecting members to move synchronously towards or away from the docking cylinder, so that the limiting member slides in the sliding groove.

[0009] As an optional technical solution for an interpupillary distance adjustment device, the connector is slidably inserted into the docking cylinder, each connector has a groove on its outer side wall, the first end of the limiting member is connected to the docking cylinder, and the second end of the limiting member is inserted into the groove.

[0010] As an optional technical solution for the interpupillary distance adjustment device, the slide groove is provided with a bottom wall, and the bottom wall of the slide groove is in contact with the second end face of the limiting member.

[0011] As an optional technical solution for the interpupillary distance adjustment device, it also includes a positioning component. The two connecting components are a first connecting component and a second connecting component. The second connecting component is provided with a positioning hole. One end of the positioning component is fixed to the first connecting component, and the other end of the positioning component passes through the docking cylinder and is slidably inserted into the positioning hole.

[0012] As an optional technical solution for an interpupillary distance adjustment device, the positioning element is provided in a one-to-one correspondence with the positioning hole; at least two positioning elements are provided at intervals, or one positioning element is provided and its cross-section is non-circular.

[0013] As an optional technical solution for an interpupillary distance adjustment device, the first connector is provided with a mounting through hole, and the positioning member passes through the mounting through hole and is interference-fitted with the mounting through hole.

[0014] As an optional technical solution for interpupillary distance adjustment device, the connector has a limiting surface on the side facing the docking cylinder to block the docking cylinder.

[0015] As an optional technical solution for the interpupillary distance adjustment device, it also includes a dial, the docking cylinder is provided with an operating port, the dial is fixed on the screw, the dial is engaged in the operating port along the axis of the screw, and the dial is rotatably disposed at the operating port around the axis of the screw.

[0016] This invention provides AR glasses, including two optical components and the aforementioned interpupillary distance adjustment device, wherein the two optical components are connected together through the interpupillary distance adjustment device.

[0017] As an optional technical solution for AR glasses, one end of the connector is slidably disposed inside the docking cylinder, and the other end of the connector is embedded and fixed inside the optical component.

[0018] Beneficial effects:

[0019] This utility model provides an interpupillary distance adjustment device, which includes a screw, a docking cylinder, a limiting member, and two connecting members. The screw has opposite threads at both ends, and each end of the screw is threadedly connected to one of the two connecting members. The docking cylinder is sleeved on the screw. One end of the connecting member is slidably connected to the docking cylinder, and the other end of the connecting member is used to fix it to the optical components of AR glasses. One of the docking cylinder and each connecting member is fixed with a limiting member, and the other has a groove corresponding to the limiting member. The rotation of the screw drives the two connecting members to move synchronously towards or away from the docking cylinder, so that the limiting member slides in the groove. By fixing a connector to each of the two optical components of the AR glasses and sliding the two connectors to the docking cylinder, the movement direction of the two connectors can be restricted. The two connectors are threadedly connected to a screw. Since the threads at both ends of the screw turn in opposite directions, when the screw rotates, it will drive the two connectors to move synchronously towards or away from the docking cylinder, thereby changing the distance between the two optical components. The structure is simple and the adjustment is smooth, which can accurately adjust to the actual interpupillary distance required by the wearer, improving the wearing experience. Moreover, during adjustment, the limiting component slides in the corresponding groove. The design of the limiting component and the groove can limit the relative movement distance between the connector and the docking cylinder, so as to prevent the connector and the docking cylinder from detaching from each other and ensure the reliability of the structure.

[0020] This invention provides AR glasses, including two optical components and the aforementioned interpupillary distance adjustment device, with the two optical components connected together via the interpupillary distance adjustment device. By adding an interpupillary distance adjustment device to the AR glasses, the reliability, smoothness, and accuracy of the interpupillary distance adjustment function can be guaranteed while ensuring a simple and lightweight structure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the first perspective of the interpupillary distance adjustment device provided in this embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the second perspective of the interpupillary distance adjustment device provided in this embodiment of the utility model;

[0023] Figure 3 This is an exploded view of the interpupillary distance adjustment device provided in this embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the AR glasses provided in an embodiment of this utility model.

[0025] In the picture:

[0026] 101. First module; 102. Second module;

[0027] 10. Screw;

[0028] 20. Connector; 20a. First connector; 20b. Second connector; 21. Slide groove; 211. Bottom wall of the groove; 22. Positioning hole; 23. Limiting surface;

[0029] 30. Connecting cylinder; 31. Operating port;

[0030] 40. Limiting component; 40a. First limiting component; 40b. Second limiting component;

[0031] 50. Positioning components;

[0032] 60. Dial. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] like Figures 1 to 4 As shown, this embodiment provides an interpupillary distance adjustment device, which includes a screw 10, a docking cylinder 30, a limiting member 40, and two connecting members 20. The screw 10 has opposite threads at both ends, and both ends of the screw 10 are threadedly connected to the two connecting members 20 respectively. The docking cylinder 30 is sleeved on the screw 10. One end of the connecting member 20 is slidably connected to the docking cylinder 30, and the other end of the connecting member 20 is used to fix it to the optical components of AR glasses. The limiting member 40 is fixed to one of the docking cylinder 30 and each connecting member 20, and the other has a groove 21 corresponding to the limiting member 40. The rotation of the screw 10 drives the two connecting members 20 to move synchronously towards or away from the docking cylinder 30, so that the limiting member 40 slides in the groove 21.

[0038] By fixing a connector 20 to each of the two optical components of the AR glasses and slidingly connecting the two connectors 20 to the docking cylinder 30, the movement direction of the two connectors 20 can be restricted. The two connectors 20 are threadedly connected to the screw 10. Since the threads at both ends of the screw 10 turn in opposite directions, when the screw 10 rotates, it will drive the two connectors 20 to move synchronously towards or away from the docking cylinder 30, thereby changing the distance between the two optical components. The structure is simple and the adjustment is smooth, which can accurately adjust to the actual interpupillary distance required by the wearer and improve the wearing experience. Moreover, during adjustment, the limiting member 40 slides in the corresponding slide groove 21. The design of the limiting member 40 and the slide groove 21 can limit the relative movement distance of the connectors 20 and the docking cylinder 30 to prevent the connectors 20 and the docking cylinder 30 from detaching from each other and ensure the reliability of the structure.

[0039] Furthermore, the connector 20 is slidably inserted into the docking cylinder 30. Each connector 20 has a groove 21 on its outer side wall. The first end of the limiting member 40 is connected to the docking cylinder 30, and the second end of the limiting member 40 is inserted into the groove 21. By slidably inserting the connector 20 into the docking cylinder 30, providing a groove 21 on the outer side wall of the connector 20, and providing a limiting member 40 on the docking cylinder 30, the second end of the limiting member 40 is inserted into the groove 21. The outer side of the connector 20 and the inner side of the docking cylinder 30 can directly slide and engage, eliminating the need for other auxiliary parts to achieve relative sliding. The structure is compact, occupies less space, and facilitates the setting of the limiting member 40 and the groove 21. Without affecting the movement of the connector 20 relative to the docking cylinder 30, the movement trajectory and distance of the connector 20 are effectively limited.

[0040] Optionally, the slide groove 21 is provided with a bottom wall 211, which contacts the second end face of the limiting member 40. The slide groove 21 constrains the sliding path of the limiting member 40, effectively controlling the movement trajectory. By setting the surface contact sliding, the load can be distributed, the load-bearing capacity can be improved, and the smooth operation of the interpupillary distance adjustment device can be effectively ensured.

[0041] Optionally, the extension direction of the docking cylinder 30 and the extension direction of the slide groove 21 are both parallel to the axial direction of the screw 10; at least two limiting members 40 are arranged side by side at intervals along the extension direction of the docking cylinder 30.

[0042] In this embodiment, the screw 10 extends horizontally, and the limiting member 40 extends vertically; the docking cylinder 30 is provided with mounting holes, and the mounting holes and the limiting members 40 are provided one-to-one. The first end of the limiting member 40 is inserted and fixed in the corresponding mounting hole of the docking cylinder 30, and the second end of the limiting member 40 is inserted into the slide groove 21 and contacts the bottom wall 211 surface of the slide groove 21; the size of the slide groove 21 matches the size of the second end of the limiting member 40; the limiting member 40 is a pin.

[0043] Optionally, the first end face of the limiting member 40 matches the outer arc surface of the docking cylinder 30. By setting the first end face of the limiting member 40 to match the outer arc surface of the docking cylinder 30, the limiting member 40 will not protrude beyond the outer arc surface of the docking cylinder 30 after installation, and can precisely block the mounting hole, preventing the limiting member 40 from protruding and affecting the normal installation of the interpupillary distance adjustment device. The first end face of the limiting member 40 can be an arc surface or a sloping plane.

[0044] Specifically, there are two limiting members 40, namely a first limiting member 40a and a second limiting member 40b, and two connecting members 20, namely a first connecting member 20a and a second connecting member 20b. Both the first connecting member 20a and the second connecting member 20b are provided with a sliding groove 21. The second end of the first limiting member 40a is inserted into the sliding groove 21 on the first connecting member 20a, and the second end of the second limiting member 40b is inserted into the sliding groove 21 on the second connecting member 20b.

[0045] Furthermore, the interpupillary distance adjustment device also includes a positioning member 50. The second connecting member 20b is provided with a positioning insertion hole 22. One end of the positioning member 50 is fixed to the first connecting member 20a, and the other end of the positioning member 50 passes through the docking cylinder 30 and is slidably inserted into the positioning insertion hole 22. By adding the positioning member 50, one end of the positioning member 50 is fixed to the first connecting member 20a, and the other end of the positioning member 50 passes through the docking cylinder 30 and is slidably inserted into the positioning insertion hole 22 of the second connecting member 20b, so that the first connecting member 20a and the second connecting member 20b can be slidably connected through the positioning member 50, further improving the accuracy of the movement direction of the first connecting member 20a and the second connecting member 20b.

[0046] Optionally, the positioning element 50 is provided in a one-to-one correspondence with the positioning hole 22; at least two positioning elements 50 are provided at intervals, or one positioning element 50 is provided with a non-circular cross-section. By providing a positioning element 50 with a non-circular cross-section or providing at least two positioning elements 50 at intervals, the first connecting member 20a and the second connecting member 20b are restricted from rotating relative to each other, thus affecting the normal use of the interpupillary distance adjustment device.

[0047] Optionally, the first connecting member 20a is provided with a mounting through hole, and the positioning member 50 passes through the mounting through hole and is interference-fitted with the mounting through hole. By providing a mounting through hole on the first connecting member 20a and the positioning member 50 being interference-fitted with the mounting through hole, the positioning member 50 is fixed to the first connecting member 20a. This eliminates the need for secondary machining such as keyways and threads, which helps save manufacturing costs. The microscopic deformation of the mating surface between the positioning member 50 and the first connecting member 20a can effectively suppress vibration and loosening, avoid stress concentration, and help improve service life.

[0048] In this embodiment, the positioning member 50 has a circular cross-section, and the extension direction of the positioning member 50 is parallel to the axial direction of the screw 10. Two positioning members 50 are arranged side by side at intervals. Two mounting through holes are also provided on the first connecting member 20a. The positioning member 50 is a pin.

[0049] To limit the relative position of the connector 20 and the docking cylinder 30, a limiting surface 23 is provided on the side of the connector 20 facing the docking cylinder 30 to stop the docking cylinder 30. By setting the limiting surface 23, the relative position of the connector 20 and the docking cylinder 30 is further limited, which can prevent over-adjustment and damage to the internal parts of the interpupillary distance adjustment device.

[0050] In this embodiment, the first connector 20a has a limiting surface 23 on the side facing the docking cylinder 30, and the second connector 20b also has a limiting surface 23 on the side facing the docking cylinder 30. When one side of the docking cylinder 30 is in contact with the limiting surface 23 on the first connector 20a, and the other side is in contact with the limiting surface 23 on the second connector 20b, the distance between the first connector 20a and the second connector 20b is the shortest.

[0051] For ease of understanding, the end of the slide groove 21 furthest from the docking cylinder 30 is called the far end, and the end of the slide groove 21 closest to the docking cylinder 30 is called the near end. When the first connector 20a and the second connector 20b move synchronously towards each other, so that the first limiting member 40a is at the near end of the slide groove 21 on the first connector 20a, and the second limiting member 40b is at the near end of the slide groove 21 on the second connector 20b, at this time, one side of the docking cylinder 30 is in contact with the limiting surface 23 on the first connector 20a, and the other side is in contact with the limiting surface 23 on the second connector 20b. At this time, the distance between the first connector 20a and the second connector 20b is the shortest, and the center distance between the two optical components of the AR glasses reaches the minimum value.

[0052] Similarly, if the first connector 20a and the second connector 20b move synchronously in opposite directions, so that the first limiting member 40a is at the far end of the slide groove 21 on the first connector 20a and the second limiting member 40b is at the far end of the slide groove 21 on the second connector 20b, then the distance between the first connector 20a and the second connector 20b is the largest, and the center distance between the two optical components of the AR glasses reaches the maximum value.

[0053] To facilitate the rotation of the screw 10, the interpupillary distance adjustment device also includes a dial 60. An operating port 31 is provided on the docking cylinder 30. The dial 60 is fixed to the screw 10 and is engaged in the operating port 31 along the axis of the screw 10. The dial 60 is rotatably positioned at the operating port 31 around the axis of the screw 10. By opening the operating port 31 on the docking cylinder 30 and fixing the dial 60 to the screw 10, the dial 60 is engaged within the operating port 31 to restrict the movement of the screw 10 along its axis. Furthermore, the dial 60 can be operated within the operating port 31, causing the screw 10 to rotate, making operation quick and convenient.

[0054] Another aspect of this embodiment provides AR glasses, including two optical components and the aforementioned interpupillary distance adjustment device, with the two optical components connected together via the interpupillary distance adjustment device. By adding an interpupillary distance adjustment device to the AR glasses, the reliability, smoothness, and accuracy of the interpupillary distance adjustment function can be guaranteed while ensuring a simple and lightweight structure.

[0055] In the prior art, two optical components need to be connected together by a frame or support structure. In this embodiment, the two optical components are connected together by an interpupillary distance adjustment device. The interpupillary distance adjustment device is used instead of a frame or support structure. Based on the connection of the two optical components, the AR glasses have an interpupillary distance adjustment function.

[0056] Optionally, one end of the connector 20 is slidably disposed within the docking cylinder 30, and the other end of the connector 20 is embedded and fixed within the optical component. By embedding and fixing the connector 20 within the optical component, the end of the connector 20 is not exposed, thus not affecting the appearance of the AR glasses. This ensures both aesthetic appeal and prevents dust from accumulating at the connection between the connector 20 and the optical component.

[0057] In this embodiment, the two optical components of the AR glasses are a first module 101 and a second module 102, respectively. The interpupillary distance adjustment device is located between the first module 101 and the second module 102. The first connector 20a is locked onto the first module 101, and the second connector 20b is locked onto the second module 102, thus forming an AR glasses. When the dial 60 is manually turned in the forward direction, the dial 60 rotates, causing the screw 10 to rotate. The rotation of the screw 10 causes the first connector 20a and the second connector 20b to move synchronously in opposite directions relative to the docking cylinder 30, and the movement limit position is limited by the cooperation of the limiting member 40 and the sliding groove 21. Similarly, when the dial 60 is turned in the reverse direction, the first connector 20a and the second connector 20b move synchronously towards each other relative to the docking cylinder 30, and the movement limit position is limited by the cooperation of the limiting member 40 and the sliding groove 21, as well as the docking cylinder 30 and the limiting surface 23.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for adjusting the interpupillary distance, characterized in that The interpupillary distance adjustment device includes a screw (10), a docking cylinder (30), a limiting member (40), and two connecting members (20). The screw (10) has opposite threads at both ends, and the two ends of the screw (10) are threadedly connected to the two connecting members (20) respectively. The docking cylinder (30) is sleeved on the screw (10). One end of the connecting member (20) is slidably connected to the docking cylinder (30), and the other end of the connecting member (20) is used to fix it to the optical components of the AR glasses. One of the docking cylinder (30) and each of the connecting members (20) is fixed with the limiting member (40), and the other is provided with a sliding groove (21) corresponding to the limiting member (40). The screw (10) rotates and drives the two connecting members (20) to move synchronously towards or away from the docking cylinder (30) so that the limiting member (40) slides in the sliding groove (21).

2. The pupil distance adjustment device according to claim 1, characterized in that The connector (20) is slidably inserted into the docking cylinder (30). Each connector (20) has a groove (21) on its outer side wall. The first end of the limiting member (40) is connected to the docking cylinder (30), and the second end of the limiting member (40) is inserted into the groove (21).

3. The pupil distance adjustment device according to claim 2, characterized in that The groove (21) is provided with a bottom wall (211), which is in contact with the second end face of the limiting member (40).

4. The pupil distance adjustment device according to claim 1, characterized in that It also includes a positioning element (50), and the two connecting elements (20) are a first connecting element (20a) and a second connecting element (20b), respectively. The second connecting element (20b) is provided with a positioning hole (22). One end of the positioning element (50) is fixed to the first connecting element (20a), and the other end of the positioning element (50) passes through the docking cylinder (30) and is slidably inserted into the positioning hole (22).

5. The pupil distance adjustment device according to claim 4, characterized in that The positioning element (50) is provided in a one-to-one correspondence with the positioning hole (22); at least two positioning elements (50) are provided at intervals, or one positioning element (50) is provided and its cross-section is non-circular.

6. The interpupillary distance adjustment device according to claim 4, characterized in that, The first connector (20a) is provided with a mounting through hole, and the positioning member (50) passes through the mounting through hole and is interference-fitted with the mounting through hole.

7. The pupil distance adjustment device according to claim 1, characterized in that The connector (20) has a limiting surface (23) on the side facing the docking cylinder (30) to stop the docking cylinder (30).

8. The pupil distance adjustment device of claim 1, wherein, It also includes a dial (60), and the docking cylinder (30) is provided with an operation port (31). The dial (60) is fixed on the screw (10). The dial (60) is engaged in the operation port (31) along the axis of the screw (10). The dial (60) is rotatably disposed at the operation port (31) around the axis of the screw (10).

9. AR glasses, characterized by It includes two optical components and an interpupillary distance adjustment device as described in any one of claims 1-8, wherein the two optical components are connected together via the interpupillary distance adjustment device.

10. The AR glasses of claim 9, wherein, One end of the connector (20) is slidably disposed inside the docking cylinder (30), and the other end of the connector (20) is embedded and fixed inside the optical component.

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