A device for correcting lens eccentricity

Abstract

The utility model relates to a kind of lens eccentricity correction's device, the device includes workbench;The workbench is provided with detection support;Detection light pipe is fixed on the detection support;The top of detection light pipe is screwed into camera, and bottom is screwed into lens;The lens is provided with correction ring;The correction ring is sleeved on lens by four correction screws;The workbench is also provided with computer system;The computer system is connected between camera by wiring harness.Compared with prior art, the utility model has the advantages of good correction effect, improving lens performance yield and the like.

Description

Technical Field

[0001] This utility model relates to the field of lens eccentricity correction technology, and in particular to a device for lens eccentricity correction. Background Technology

[0002] During lens assembly, a detection system is needed to check star points or beams. However, because lenses are sensitive to eccentricity caused by the assembly of certain lens elements, lens performance is often unsatisfactory once the lens components are assembled. Traditional correction methods require repeated disassembly and reassembly, which is inherently subject to chance and detrimental to lens assembly. Therefore, an eccentricity correction device is needed to efficiently correct lens eccentricity in a single step. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of the existing technology and provide a lens offset correction device.

[0004] The objective of this utility model can be achieved through the following technical solutions: A lens eccentricity correction device includes a worktable; a detection bracket is provided on the worktable; a detection light tube is fixed on the detection bracket; a camera is screwed into the top of the detection light tube and a lens is screwed into the bottom; a correction ring is provided on the lens; the correction ring is sleeved on the lens by four correction screws; a computer system is also provided on the worktable; the computer system is connected to the camera via a wiring harness.

[0005] Furthermore, the lens has four calibration holes evenly distributed on it; the four calibration screws are screwed into the calibration holes one by one.

[0006] Furthermore, the detection bracket is provided with a calibration standard point; the center point of the detection light tube and the camera is set directly opposite the calibration standard point.

[0007] Furthermore, the detection light tube is a hollow cylindrical tube.

[0008] Compared with the prior art, the present invention has the following advantages: This invention, by setting a correction hole, a correction screw, and a correction ring, makes it suitable for adjusting the position of the correction screw during lens performance testing, thereby correcting lens eccentricity. This allows for controllable adjustment of lens performance within a certain range and also improves the performance yield of lens assembly in a single step. Attached Figure Description

[0009] Figure 1 A schematic diagram of the device structure provided by this utility model; Figure 2A schematic diagram of the correction ring structure provided by this utility model; Figure 3 This is a partial cross-sectional structural diagram of the device provided by this utility model.

[0010] The labels in the diagram indicate: 1. Testing bracket; 2. Lens; 3. Calibration screw; 4. Calibration ring; 5. Testing light tube; 6. Camera; 7. Computer system; 8. Worktable; 9. Calibration standard point. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0012] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0013] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0014] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0015] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0016] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Example

[0017] like Figures 1-3 As shown, a lens eccentricity correction device includes a worktable 8; a detection bracket 1 and a computer system 7 are mounted on the worktable 8; a detection light tube 5, which is a hollow cylindrical tube, is fixed on the detection bracket 1; a camera 6 is screwed into the top of the detection light tube 5, and a lens 2 is screwed into the bottom; a correction ring 4 is provided on the lens 2; four correction holes are evenly distributed on the lens 2; the correction ring 4 is screwed into the correction holes one by one by four correction screws 3 and fitted onto the lens 2; the computer system 7 is connected to the camera 6 via a wiring harness; a correction standard point 9 is provided on the detection bracket 1; the center points of the detection light tube 5 and the camera 6 are aligned with the correction standard point 9 to facilitate eccentricity correction.

[0018] The working principle of this utility model is as follows: When lens 2 needs to be corrected for eccentricity, first screw lens 2 into the bottom of the detection light tube 5, then start camera 6 and computer system 7. Then, based on the image transmitted in real time from camera 6 displayed on computer system 7, make corrections by rotating one or more of the four correction screws 3. The correction screws 3 will correct the eccentricity of some sensitive lenses of lens 2 through the correction hole of lens 2 until the image displayed by computer system 7 is not eccentric. After the correction is completed, use glue to fix the lens to the lens, and complete the correction and assembly process. There is no need for repeated disassembly and assembly, which improves the performance and yield of lens 2 in one assembly.

[0019] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for lens eccentricity correction, characterized in that, The device includes a workbench (8); a detection bracket (1) is provided on the workbench (8); a detection light tube (5) is fixed on the detection bracket (1); a camera (6) is screwed into the top of the detection light tube (5) and a lens (2) is screwed into the bottom; a calibration ring (4) is provided on the lens (2); the calibration ring (4) is sleeved on the lens (2) by four calibration screws (3); a computer system (7) is also provided on the workbench (8); the computer system (7) is connected to the camera (6) by a wiring harness.

2. The lens offset correction device according to claim 1, characterized in that, The lens (2) has four calibration holes evenly distributed on it; the four calibration screws (3) are screwed into the calibration holes one by one.

3. The lens offset correction device according to claim 1, characterized in that, The detection bracket (1) is provided with a calibration standard point (9); the center point of the detection light tube (5) and the camera (6) is set directly opposite the calibration standard point (9).

4. The lens offset correction device according to claim 1, characterized in that, The detection light tube (5) is a hollow cylindrical tube.

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