High-efficiency alignment device for optical lens

Abstract

The utility model provides an optical lens high-efficiency alignment device, which relates to the technical field of lens core adjustment, and comprises a box body, a processing chamber is arranged above the box body, a five-axis movement mechanism and a detection lens group are arranged in the processing chamber, and a fixing tool for bearing a lens is arranged on the five-axis movement mechanism; an inlet / outlet communicated with the processing chamber is formed in the box body; the five-axis movement mechanism is movably positioned in the inlet / outlet; a plurality of support arms made of a carbon fiber composite material are annularly and uniformly distributed on the mounting plate along the center, and each support arm is movably provided with a detection camera mechanism. The beneficial effects of the utility model are that the high-efficiency alignment device for the optical lens can flexibly adjust the position and the angle of the lens by adopting the five-axis movement mechanism to be organically applied to the device, can be adjusted at multiple positions on the support arm by combining with the detection camera mechanism, meets the requirement of adjusting at multiple positions, and simultaneously adopts the graduated scale to improve the position precision, so that the production efficiency is improved. Therefore, the alignment effect of the lens is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of lens alignment technology, and in particular to an efficient optical lens alignment device. Background Technology

[0002] In today's era of rapid technological development, optical lenses, as a key precision optical component, are widely used in many imaging fields such as automotive, security, intelligent manufacturing, photography and videography, and medical equipment. The quality of their imaging directly affects the performance and application effect of related equipment and systems.

[0003] Lens image quality is a comprehensive indicator influenced by various factors, among which coaxiality plays a crucial role. Coaxiality refers to the degree of coincidence between the lens's central optical axis and the lens surface normal. Poor lens coaxiality can lead to a series of serious problems. For example, light cannot travel along an ideal path when passing through the lens, resulting in blurring, distortion, and chromatic aberration, significantly reducing image sharpness, contrast, and color reproduction. In applications with extremely high image quality requirements, such as high-end security monitoring that needs to clearly identify the features of distant targets, and medical imaging diagnosis that needs to accurately observe the fine structures of internal human tissues, even a slight coaxiality deviation can have serious consequences, affecting the accuracy of monitoring and the reliability of diagnosis.

[0004] Lens alignment equipment typically includes a testing camera and a testing stage for placing the lens. The testing camera plays a crucial role, using high-precision imaging technology to capture the positional information of the lens module or optical components in real time, ensuring the lens's center is aligned with the optical axis. In lens alignment equipment, both the testing camera and the testing stage often need to have a certain degree of position adjustment capability to ensure the testing camera can accurately capture the lens module's positional information and optical performance. However, currently, many alignment equipment's testing cameras and testing stages cannot meet the needs of multiple position adjustments, resulting in some critical positions of the lens module not being detected, thus affecting alignment accuracy and consistency. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art and provides an efficient optical lens alignment device that can flexibly adjust the lens position and angle to meet the needs of multiple position adjustments and enhance the lens alignment effect.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] An efficient optical lens alignment device includes a housing with a processing chamber on top. The inner wall of the processing chamber is coated with a black light-absorbing coating. A five-axis motion mechanism and a detection lens assembly are installed inside the processing chamber. The five-axis motion mechanism is equipped with a fixing fixture for supporting the lens. The housing has an inlet and outlet communicating with the processing chamber, and the five-axis motion mechanism is movably located in the inlet and outlet. The detection lens assembly includes a base plate with a horizontal plate slidably connected to it. A column is fixedly connected to the horizontal plate, and a mounting plate is slidably connected to the column. Several support arms made of carbon fiber composite material with an elastic modulus of 150-250 GPa are evenly distributed in a ring around the center of the mounting plate. The support arms extend in an arc shape towards the fixing fixture, and a detection camera mechanism can be movably mounted on each support arm.

[0008] Furthermore, the detection camera mechanism includes a first connecting plate, a second connecting plate, and a detection camera, with the detection camera fixed on the second connecting plate; a first guide groove is provided along the length direction of the support arm, and a second guide groove is provided along the length direction of the first connecting plate; the first connecting plate is slidably connected to the first guide groove, and the second connecting plate is slidably connected to the second guide groove; a scale is provided on the support arm next to the first guide groove.

[0009] Furthermore, a first linear screw module is provided on the base plate, and the output end of the first linear screw module is connected to the horizontal plate; a second linear screw module is provided on the column, and the output end of the second linear screw module is connected to the mounting plate.

[0010] Furthermore, it also includes a first screw knob and a second screw knob, the first screw knob passing through the first guide groove and forming a threaded connection with the first connecting plate, and the second screw knob passing through the second guide groove and forming a threaded connection with the second connecting plate.

[0011] Furthermore, the housing is equipped with a side door, the position of which corresponds to the detection mirror assembly, and a handle is provided on the side door; the side door is 3mm thick and its dimensions are 500mm×400mm.

[0012] Furthermore, the housing is equipped with a mounting rod, and a control unit is connected to the mounting rod via a rotating joint; the rotation angle range of the rotating joint is 0 to 360°, which can realize the all-round adjustment of the control unit.

[0013] Furthermore, the bottom of the housing is provided with four height-adjustable support feet and four casters arranged in a rectangular pattern.

[0014] Furthermore, the height of the support foot is adjustable from 10 to 150 mm to adapt to different working environments; the diameter of the rollers is 50 to 100 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This high-efficiency optical lens alignment device incorporates a five-axis motion mechanism, allowing for flexible adjustment of the lens position and angle. Combined with a detection camera mechanism, it can be adjusted in multiple positions on the support arm to meet various adjustment needs. Furthermore, a graduated scale is used to improve positional accuracy, thereby enhancing the lens alignment effect. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and, together with the embodiments of the present invention, are used to explain the present invention. They do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is an overall diagram of an optical lens high-efficiency alignment device of this utility model;

[0019] Figure 2 This is an overall view of the removal and processing chamber of the optical lens high-efficiency alignment device of this utility model;

[0020] Figure 3 This is a schematic diagram of the detection lens assembly;

[0021] Figure 4 This is a schematic diagram of a five-axis motion mechanism. Figure 1 ;

[0022] Figure 5 This is a schematic diagram of a five-axis motion mechanism. Figure 2 .

[0023] In the picture:

[0024] 1. Housing; 101. Processing chamber; 102. Inlet / outlet; 103. Side door; 104. Handle; 105. Mounting rod; 2. Five-axis motion mechanism; 3. Inspection lens assembly; 301. Base plate; 302. Horizontal plate; 303. Column; 304. Mounting plate; 305. Support arm; 3051. First guide groove; 3052. Scale; 306. First connecting plate; 3061. Second guide groove; 307. Second connecting plate; 308. Inspection camera; 4. Fixture; 5. First linear screw module; 6. Second linear screw module; 7. First screw knob; 8. Second screw knob; 9. Control platform; 10. Support leg; 11. Rolling wheel; 12. Lens. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] like Figures 1 to 5As shown, this utility model claims protection for an efficient optical lens alignment device, including a housing 1, a processing chamber 101 disposed above the housing 1, the inner wall of the processing chamber 101 being coated with a black light-absorbing coating, and a five-axis motion mechanism 2 and a detection lens group 3 disposed within the processing chamber 101. Specifically, in this embodiment, the black light-absorbing coating is a matte varnish. During the processing and detection of optical lenses, stray light can severely affect the detection results. Various light reflections and scatterings may exist within the processing chamber 101, and these stray lights converge on the image plane, with unpredictable positions, making them difficult to remove using algorithms. The black light-absorbing coating can absorb these stray lights, reduce background signals, and improve the accuracy and precision of the detection.

[0027] The five-axis motion mechanism 2 is equipped with a fixed fixture 4 for carrying the lens 12; the housing 1 is equipped with an inlet and outlet 102 that communicates with the processing chamber 101, and the five-axis motion mechanism 2 is located in the inlet and outlet 102; the five-axis motion mechanism 2 is used to transport the fixed fixture 4 to the inlet and outlet 102, so that external equipment can take the lens 12 away or put it in the fixed fixture 4, so that the five-axis motion mechanism 2 can transport the lens 12 to be inspected to the inspection lens group 3 for inspection.

[0028] In this embodiment, the five-axis motion mechanism 2 includes three linear axes (X, Y, and Z) plus an A-axis rotation axis and a B-axis rotation axis. The X-axis represents linear motion in the left-right direction, the Y-axis represents linear motion in the front-back direction, and the Z-axis represents linear motion in the up-down direction. The A-axis rotation axis can rotate around the X-axis, and the B-axis rotation axis can rotate around the Y-axis. The fixing fixture 4 is located on the A-axis rotation axis, thereby allowing the lens 12 to be adjusted for detection at different positions and angles. The five-axis motion mechanism is existing technology; this technical solution organically applies this mechanism to a high-efficiency lens alignment device to enhance the lens alignment effect.

[0029] The inspection mirror assembly 3 includes a base plate 301, a horizontal plate 302 slidably connected to the base plate 301, a column 303 fixedly connected to the horizontal plate 302, and a mounting plate 304 slidably connected to the column 303. A first linear lead screw module 5 is mounted on the base plate 301, with its output end connected to the horizontal plate 302, thereby driving the horizontal plate 302 to move. A second linear lead screw module 6 is mounted on the column 303, with its output end connected to the mounting plate 304, thereby driving the mounting plate 304 to move up and down. Both the first linear lead screw module 5 and the second linear lead screw module 6 include a lead screw, a lead screw nut, and a slide assembly. The interaction between the lead screw and the lead screw nut drives the slide assembly to move. In this prior art of linear lead screw modules, the output end mentioned above refers to the slide assembly. Therefore, by combining the first linear lead screw module 5 and the second linear lead screw module 6, two-dimensional motion adjustment can be achieved.

[0030] A number of support arms 305 made of carbon fiber composite material are evenly distributed in a ring around the center of the mounting plate 304, with an elastic modulus of 150–250 GPa. During equipment operation, the support arms 305 are subjected to various external forces, such as their own weight, vibration, and forces transmitted from other components. If the elastic modulus is too low, the support arms 305 are prone to large deformation under stress, failing to maintain their original shape and position. Even small deformations of the support arms 305 can cause displacement of optical elements, thus affecting optical performance. By limiting the elastic modulus to the range of 150–250 GPa, sufficient rigidity of the support arms 302 can be ensured, resulting in minimal deformation under stress and maintaining the stability of their structural shape.

[0031] Several support arms 305 extend in an arc shape toward the fixed fixture 4, and a detection camera 308 mechanism can be movably mounted on each support arm 305. The detection camera 308 mechanism includes a first connecting plate 306, a second connecting plate 307, and a detection camera 308, with the detection camera 308 fixed to the second connecting plate 307. A first guide groove 3051 is formed along the length of the support arm 305, and a second guide groove 3061 is formed along the length of the first connecting plate 306. The first connecting plate 306 is slidably connected to the first guide groove 3051, and the second connecting plate 307 is slidably connected to the second guide groove 3061. A scale 3052 is provided on the support arm 305 next to the first guide groove 3051.

[0032] It also includes a first screw knob 7 and a second screw knob 8. The first screw knob 7 passes through the first guide groove 3051 and forms a threaded connection with the first connecting plate 306. The second screw knob 8 passes through the second guide groove 3061 and forms a threaded connection with the second connecting plate 307.

[0033] As can be seen from the above connection structure, after adjusting the position of the first connecting plate 306, the first screw knob 7 passes through the first guide groove 3051 and is tightened and fixed to the first connecting plate 306; similarly, after adjusting the position of the second connecting plate 307, the second screw knob 8 passes through the second guide groove 3061 and is fixed to the second connecting plate 307, which helps to adjust the detection camera 308 in multiple positions; in addition, the setting of the scale 3052 helps to improve the positional accuracy of the detection camera 308 in each support arm 305.

[0034] The housing 1 is provided with a side door 103, the position of which corresponds to the inspection mirror group 3, which helps to open the side door 103 to operate the inspection mirror group 3. The side door 103 is provided with a handle 104 for easy hand opening.

[0035] The side-opening door 103 has a thickness of 3mm and a size of 500mm × 400mm. The 3mm thickness provides the side-opening door 103 with a certain structural strength, allowing it to withstand certain external forces during daily use without deformation or damage; the 500mm × 400mm size can be matched with the space corresponding to the inspection lens group 3.

[0036] A mounting rod 105 is provided on the housing 1, and a control unit 9 is connected to the mounting rod 105 via a rotating joint; the rotation angle range of the rotating joint is 0 to 360°, which can realize the all-round adjustment of the control unit 9. In this embodiment, the rotation angle range of the rotating joint is 0 to 360°, which can realize the all-round adjustment of the control unit 9 and adapt to the practical needs of different personnel.

[0037] The bottom of the housing 1 is rectangularly arranged with four height-adjustable support feet 10 and four casters 11. The casters 11 are used for overall movement, which is very convenient; after the position is fixed, the support feet 10 can be screwed down to connect with the ground; when it is to be moved, the support feet 10 can be screwed up to separate from the ground without affecting the movement; the height-adjustable support feet 10 are existing technology and will not be described in detail here.

[0038] In this embodiment, the height adjustment range of the support foot 10 is 10–150 mm to adapt to different working environments; the diameter of the rolling wheel 11 is 50–100 mm. Since different working environments have vastly different ground conditions, there may be unevenness, slopes, or localized bumps and depressions. The adjustable height of the support foot (10–150 mm) allows the container to remain stable on uneven ground. The diameter of the rolling wheel 11 affects the container's mobility to some extent. Smaller diameter wheels (closer to 50 mm) are relatively more flexible, with a smaller turning radius, suitable for moving the container in environments with limited space and frequent turning, such as narrow warehouse aisles. Larger diameter wheels (closer to 100 mm) offer better passability, easily overcoming smaller obstacles such as pebbles and crevices, and moving more smoothly on rougher surfaces. Therefore, by limiting the diameter of the rolling wheels to the range of 50-100mm, it can be ensured that the housing 1 can move normally under different load conditions, while ensuring stability during movement and reducing the risk of shaking or tipping over due to wheel problems.

[0039] This high-efficiency optical lens alignment device incorporates a five-axis motion mechanism, allowing for flexible adjustment of the lens position and angle. Combined with the detection camera mechanism, it enables multi-position adjustment on the support arm, meeting various adjustment needs. A graduated scale further enhances positional accuracy, thus improving lens alignment. Furthermore, the black light-absorbing coating within the processing chamber helps absorb stray light, preventing interference with the detection results and further improving accuracy and precision.

[0040] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency optical lens alignment device, characterized in that: The system includes a housing (1), a processing chamber (101) on top of the housing (1), the inner wall of the processing chamber (101) being coated with a black light-absorbing coating, a five-axis motion mechanism (2) and a testing lens assembly (3) being installed inside the processing chamber (101), and a fixing fixture (4) for supporting the lens (12) being installed on the five-axis motion mechanism (2); the housing (1) has an inlet and outlet (102) communicating with the processing chamber (101), and the five-axis motion mechanism (2) is located within the inlet and outlet (102); the testing lens assembly (3) includes a base plate (301). The base plate (301) is slidably connected to a horizontal plate (302), and a column (303) is fixedly connected to the horizontal plate (302). The column (303) is slidably connected to a mounting plate (304). Several support arms (305) made of carbon fiber composite material are evenly distributed in a ring along the center of the mounting plate (304), and their elastic modulus is 150-250 GPa. Several support arms (305) extend in an arc shape towards the fixed tooling (4), and each support arm (305) can be movably equipped with a detection camera (308) mechanism.

2. The high-efficiency optical lens alignment device according to claim 1, characterized in that: The detection camera (308) mechanism includes a first connecting plate (306), a second connecting plate (307), and a detection camera (308). The detection camera (308) is fixed on the second connecting plate (307). A first guide groove (3051) is provided along the length direction of the support arm (305), and a second guide groove (3061) is provided along the length direction of the first connecting plate (306). The first connecting plate (306) is slidably connected to the first guide groove (3051), and the second connecting plate (307) is slidably connected to the second guide groove (3061). A scale (3052) is provided on the support arm (305) next to the first guide groove (3051).

3. The high-efficiency optical lens alignment device according to claim 1, characterized in that: A first linear screw module (5) is provided on the base plate (301), and the output end of the first linear screw module (5) is connected to the horizontal plate (302); a second linear screw module (6) is provided on the column (303), and the output end of the second linear screw module (6) is connected to the mounting plate (304).

4. The high-efficiency optical lens alignment device according to claim 2, characterized in that: It also includes a first screw knob (7) and a second screw knob (8). The first screw knob (7) passes through the first guide groove (3051) and forms a threaded connection with the first connecting plate (306). The second screw knob (8) passes through the second guide groove (3061) and forms a threaded connection with the second connecting plate (307).

5. The high-efficiency alignment device for optical lenses according to claim 1, characterized in that: The housing (1) is provided with a side door (103), the position of which corresponds to the detection mirror group (3), and a handle (104) is provided on the side door (103); the thickness of the side door (103) is 3mm, and the size of the side door (103) is 500mm×400mm.

6. The high-efficiency optical lens alignment device according to claim 5, characterized in that: The housing (1) is provided with a mounting rod (105), and a control machine (9) is connected to the mounting rod (105) via a rotating joint; the rotation angle range of the rotating joint is 0 to 360°, which can realize the all-round adjustment of the control machine (9).

7. The high-efficiency optical lens alignment device according to claim 6, characterized in that: The bottom of the box (1) is provided with four height-adjustable support feet (10) and four rollers (11) arranged in a rectangular pattern.

8. The high-efficiency optical lens alignment device according to claim 7, characterized in that: The height adjustment range of the support foot (10) is 10-150mm to adapt to different working environments; the diameter of the roller (11) is 50-100mm.

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