A device for aligning the optical axes of a binocular

Abstract

This utility model discloses a binoculars optical axis calibration device, relating to the field of optical fixture technology. It includes a worktable, with a collimator fixedly connected to its top end, an adjustment device fixedly connected to its top end, a placement platform mounted on the moving end of the adjustment device, a placement component fixedly connected to its top end, and a binoculars front lens fixedly connected to its top end. This utility model, through the coordinated action of the moving device, the worm gear transmission mechanism, and the limiting device, synchronously adjusts the angle and position of the binoculars, avoiding the cumbersome steps of separately adjusting the positions of the placement component and the binoculars front lens and verifying their fit. Utilizing the deceleration characteristics of the worm gear transmission, it achieves high-precision fine-tuning, ensuring the accuracy of optical axis deviation measurement. The flexibility of lateral and angular adjustment makes it adaptable to different specifications and models of binoculars, ensuring the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of optical inspection technology, specifically a binoculars optical axis calibration device. Background Technology

[0002] The optical axis of a telescope refers to the ideal straight-line path of light propagation within each telescope tube; that is, a virtual straight line starting from the center of the objective lens, passing through the internal optical system of the telescope, and finally converging at the focal point of the eyepiece. Because the optical axes of the left and right binoculars can shift due to errors in parts manufacturing and assembly, it is necessary to verify the parallelism of the optical axes of the left and right binoculars.

[0003] The patent publication number "CN223005705U" is entitled "A device for calibrating the optical axis of binoculars". The device has a double-tube front lens fixed on the upper part of the adjustment frame. The collimator, support base and adjustment frame are arranged in sequence on the worktable. The collimator has a cross reticle I inside. Each lens in the double-tube front lens has a cross reticle II inside. The top of the support base has a support plate for placing the binoculars. The base I of the adjustment frame has three threaded adjustment screws I evenly distributed around the circumference. The above patent can directly place the binoculars on the support plate of the support base to directly calibrate the optical axis deviation. It has the characteristics of simple structure, convenient calibration, flexible adjustment and low cost.

[0004] The aforementioned patent requires adjusting the support base and the adjustment frame separately to achieve the adjustment of the device. At the same time, it is necessary to consider the mutual cooperation between the support base and the adjustment frame after the adjustment, which leads to many steps and low efficiency in the calibration process. To address this, a binoculars optical axis calibration device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a binoculars optical axis alignment device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a binoculars optical axis alignment device, comprising a worktable, a collimator fixedly connected to the top of the worktable, an adjustment device fixedly connected to the top of the worktable, a placement platform mounted on the movable end of the adjustment device, a placement component fixedly connected to the top of the placement platform, and a double-tube front lens fixedly connected to the top of the placement platform.

[0007] The adjustment device includes a moving device mounted on the top of the workbench. A fixed frame is mounted on the moving end of the moving device. A column is rotatably connected to the top of the fixed frame. A worm gear is fixedly connected to the outer wall of the column. A worm for meshing with and controlling the rotation of the worm gear is rotatably connected to the top of the fixed frame. A moving cylinder is slidably connected to the outer wall of the column. The top of the moving cylinder is fixed to the bottom of the placement platform. A limiting device for restricting the movement of the moving cylinder is installed between the moving cylinder and the column.

[0008] Preferably, the moving device includes a fixed frame, the bottom end of the fixed frame is fixed to the top end of the worktable, a threaded rod is rotatably connected to the inner wall of the fixed frame, a moving block is threadedly connected to the outer wall of the threaded rod, the outer wall of the moving block is slidably connected to the inner wall of the fixed frame, and the top end of the moving block is fixed to the bottom end of the fixed frame.

[0009] Preferably, the limiting device includes a threaded positioning rod, the outer wall of the threaded positioning rod and the inner wall of the moving cylinder are threadedly connected, one end of the threaded positioning rod is rotatably connected to a limiting block, the outer wall of the limiting block and the interior of the moving cylinder are slidably connected, and one side of the column is fixedly connected to a toothed condition.

[0010] Preferably, a support device is installed at the bottom of the placement platform, a first round rod is fixedly connected to the bottom of the support device, a first cylinder is slidably connected to the outer wall of the first round rod, a caster wheel is rotatably connected to the bottom of the first cylinder, and a limiting component is installed between the first round rod and the first cylinder to restrict the movement of the first cylinder.

[0011] Preferably, the inner wall of the movable cylinder is provided with a threaded hole, and the outer wall of the threaded positioning rod is threadedly connected to the inner wall of the movable cylinder through the threaded hole.

[0012] Preferably, the top of the fixing frame is provided with a circular groove, and the bottom of the column is rotatably connected to the top of the fixing frame through a circular hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This binoculars optical axis alignment device, through the coordinated action of a moving device, a worm gear transmission mechanism, and a limiting device, synchronously adjusts the angle and position of the binoculars. This avoids the tedious steps of separately adjusting the positions of the placement components and the front lens of the two tubes and verifying their fit. It utilizes the deceleration characteristics of the worm gear transmission to achieve high-precision fine-tuning, ensuring the accuracy of the optical axis deviation measurement. The flexibility of lateral and angular adjustment makes it adaptable to binoculars of different specifications and models, ensuring the practicality of the device.

[0015] Meanwhile, by setting up a support device, the height of the placement platform is adjusted by the column and the moving cylinder, and the relative position between the column and the moving cylinder is fixed by a limiting device. Then, by adjusting the distance between the two ends of the support device, and by using a limiting component, the relative position between the first round rod and the first round cylinder is fixed. The support device supports the placement platform, and the use of casters ensures the movement and angle adjustment of the placement platform, thus ensuring the feasibility of adjusting the angle and position of the binoculars. Attached Figure Description

[0016] Figure 1 This is an isometric drawing of the present invention;

[0017] Figure 2 This is an isometric drawing of the support device of this utility model;

[0018] Figure 3 This is an isometric drawing of the adjustment device of this utility model;

[0019] Figure 4 This is a cross-sectional view of the limiting device of this utility model.

[0020] In the diagram: 1. Workbench; 2. Parallel light tube; 3. Adjustment device; 301. Fixing frame; 302. Column; 303. Worm gear; 304. Worm; 305. Moving cylinder; 306. Fixing frame; 307. Threaded rod; 308. Moving block; 4. Placement platform; 5. Limiting device; 501. Threaded positioning rod; 502. Limiting block; 503. Gear condition; 6. Placement component; 7. Double-tube front mirror; 8. Support device; 801. No. 1 round rod; 802. No. 1 round cylinder; 803. Caster wheel. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a binoculars optical axis alignment device, including a worktable 1, a collimator 2 fixedly connected to the top of the worktable 1, an adjustment device 3 fixedly connected to the top of the worktable 1, a placement platform 4 installed on the movable end of the adjustment device 3, a placement component 6 fixedly connected to the top of the placement platform 4, and a double-tube front lens 7 fixedly connected to the top of the placement platform 4.

[0023] The adjustment device 3 includes a moving device, which is installed on the top of the workbench 1. A fixed frame 301 is installed on the moving end of the moving device. A column 302 is rotatably connected to the top of the fixed frame 301. A worm gear 303 is fixedly connected to the outer wall of the column 302. A worm 304 for meshing with the worm gear 303 and controlling the rotation of the worm gear 303 is rotatably connected to the top of the fixed frame 301. A moving cylinder 305 is slidably connected to the outer wall of the column 302. The top of the moving cylinder 305 is fixed to the bottom of the placement platform 4. A limiting device 5 for limiting the movement of the moving cylinder 305 is installed between the moving cylinder 305 and the column 302.

[0024] The moving device includes a fixed frame 306, the bottom end of which is fixed to the top end of the worktable 1. A threaded rod 307 is rotatably connected to the inner wall of the fixed frame 306, and a moving block 308 is threadedly connected to the outer wall of the threaded rod 307. The outer wall of the moving block 308 is slidably connected to the inner wall of the fixed frame 306, and the top end of the moving block 308 is fixed to the bottom end of the fixed frame 301.

[0025] The limiting device 5 includes a threaded positioning rod 501, the outer wall of the threaded positioning rod 501 is threadedly connected to the inner wall of the moving cylinder 305, one end of the threaded positioning rod 501 is rotatably connected to a limiting block 502, the outer wall of the limiting block 502 is slidably connected to the inside of the moving cylinder 305, and a toothed condition 503 is fixedly connected to one side of the column 302.

[0026] A support device 8 is installed at the bottom of the placement platform 4. A first round rod 801 is fixedly connected to the bottom of the support device 8. A first cylinder 802 is slidably connected to the outer wall of the first round rod 801. A caster wheel 803 is rotatably connected to the bottom of the first cylinder 802. A limiting component is installed between the first round rod 801 and the first cylinder 802 to restrict the movement of the first cylinder 802.

[0027] The inner wall of the movable cylinder 305 is provided with a threaded hole, and the outer wall of the threaded positioning rod 501 is threadedly connected to the inner wall of the movable cylinder 305 through the threaded hole.

[0028] The top of the fixing frame 301 is provided with a circular groove, and the bottom of the column 302 is rotatably connected to the top of the fixing frame 301 through a circular hole.

[0029] First, adjust the focal length, diopter, and distance between the two binoculars of the binoculars to be tested. Adjust the distance between the two binoculars so that the binoculars can fit onto the placement piece 6 and be placed on the placement piece 6. Adjust the angle and position of the binoculars using the adjustment device 3 and the limiting device 5 so that the binoculars are directly facing the viewport of the collimator 2. Then, measure the optical axis of the binoculars using the binocular front lens 7 to obtain the optical axis deviation of the binoculars. First, determine whether the optical axis deviation is qualified. If it is not qualified, adjust the binoculars according to the optical axis deviation so that the adjusted optical axis deviation is within the qualified range.

[0030] The rotating worm 304 causes the worm wheel 303 to rotate as well. Since the transmission between the worm wheel 303 and the worm 304 has a speed reduction effect, the angle of the column 302 can be finely adjusted. The moving cylinder 305 and the placement platform 4 rotate synchronously. The rotating threaded rod 307 causes the moving block 308 to rotate as well. The moving block 308 is also affected by the internal sliding connection of the fixed frame 306, which causes the moving block 308 to adjust along the length of the threaded rod 307. This changes the position of the adjusting device 3, and relative movement occurs between the moving cylinder 305 and the column 302. The relative position between the moving cylinder 305 and the column 302 is fixed by the limiting device 5.

[0031] Adjust the relative position between the moving cylinder 305 and the column 302, then rotate the threaded positioning rod 501. The limiting block 502 is affected by the movement of the threaded positioning rod 501, thereby achieving contact between the limiting block 502 and the tooth condition 503, thus fixing the relative position between the moving cylinder 305 and the column 302. The limiting component and limiting device 5 between the first round rod 801 and the first round cylinder 802 have the same structure, thus also fixing the relative position between the first round rod 801 and the first round cylinder 802. The support device 8 can support the position of the placement stage 4. Through the coordinated action of the moving device, the worm gear 303 and worm 304 transmission mechanism and the limiting device 5, the angle and position of the binoculars are adjusted synchronously, avoiding the need to adjust the position of the placement piece 6 and the dual-tube front lens 7 separately and verify the fit relationship. The complex steps are eliminated by utilizing the speed reduction characteristics of the worm gear 303 and worm 304 transmission to achieve high-precision fine-tuning, ensuring the accuracy of optical axis deviation measurement. The flexibility of lateral and angular adjustment makes it adaptable to binoculars of different specifications and models, ensuring the practicality of the device. Through the setting of the support device 8, the height of the placement platform 4 is adjusted by the column 302 and the moving cylinder 305, and the relative position between the column 302 and the moving cylinder 305 is fixed by the limiting device 5. Then, by adjusting the distance between the two ends of the support device 8, and by the limiting component, the relative position between the first round rod 801 and the first round cylinder 802 is fixed. The support device 8 supports the placement platform 4, and the use of the universal wheel 803 ensures the movement and angle adjustment of the placement platform 4, ensuring the feasibility of the angle and position of the binoculars.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A binoculars optical axis alignment device, comprising a worktable (1), characterized in that: The top of the worktable (1) is fixedly connected to a parallel light tube (2), the top of the worktable (1) is fixedly connected to an adjustment device (3), the moving end of the adjustment device (3) is equipped with a placement platform (4), the top of the placement platform (4) is fixedly connected to a placement component (6), and the top of the placement platform (4) is fixedly connected to a double-tube front mirror (7). The adjustment device (3) includes a moving device, which is installed on the top of the workbench (1). The moving end of the moving device is equipped with a fixed frame (301). The top of the fixed frame (301) is rotatably connected to a column (302). The outer wall of the column (302) is fixedly connected to a worm gear (303). The top of the fixed frame (301) is rotatably connected to a worm (304) for meshing with the worm gear (303) and controlling the rotation of the worm gear (303). The outer wall of the column (302) is slidably connected to a moving cylinder (305). The top of the moving cylinder (305) is fixed to the bottom of the placement platform (4). A limiting device (5) is installed between the moving cylinder (305) and the column (302) to restrict the movement of the moving cylinder (305).

2. The binoculars optical axis alignment device according to claim 1, characterized in that: The moving device includes a fixed frame (306), the bottom end of the fixed frame (306) is fixed to the top end of the workbench (1), a threaded rod (307) is rotatably connected to the inner wall of the fixed frame (306), a moving block (308) is threadedly connected to the outer wall of the threaded rod (307), the outer wall of the moving block (308) is slidably connected to the inner wall of the fixed frame (306), and the top end of the moving block (308) is fixed to the bottom end of the fixed frame (301).

3. The binoculars optical axis alignment device according to claim 1, characterized in that: The limiting device (5) includes a threaded positioning rod (501), the outer wall of the threaded positioning rod (501) and the inner wall of the moving cylinder (305) are threadedly connected, a limiting block (502) is rotatably connected to one end of the threaded positioning rod (501), the outer wall of the limiting block (502) and the interior of the moving cylinder (305) are slidably connected, and a toothed condition (503) is fixedly connected to one side of the column (302).

4. The binoculars optical axis alignment device according to claim 1, characterized in that: A support device (8) is installed at the bottom of the placement platform (4). A first round rod (801) is fixedly connected to the bottom of the support device (8). A first cylinder (802) is slidably connected to the outer wall of the first round rod (801). A universal wheel (803) is rotatably connected to the bottom of the first cylinder (802). A limiting component that restricts the movement of the first cylinder (802) is installed between the first round rod (801) and the first cylinder (802).

5. The binoculars optical axis alignment device according to claim 1, characterized in that: The inner wall of the movable cylinder (305) is provided with a threaded hole, and the outer wall of the threaded positioning rod (501) is threadedly connected to the inner wall of the movable cylinder (305) through the threaded hole.

6. The binoculars optical axis alignment device according to claim 1, characterized in that: The top of the fixing frame (301) is provided with a circular groove, and the bottom of the column (302) is rotatably connected to the top of the fixing frame (301) through a circular hole.

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