Lens defect detection device

Abstract

The utility model relates to the technical field of automatic detection, and discloses a lens defect detection device which comprises a feeding module, a discharging module, a positioning module, a detection module and a three-station rotating platform, and the three-station rotating platform can rotate among the positioning module, the detection module and the discharging module to work. According to the utility model, the speckle development imaging technology is adopted to amplify pixel defects on the surface of the lens under the condition that defect information is not lost, so that the detection accuracy and efficiency of the pixel defects are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automated detection, in particular to a lens defect detection device. Background Art

[0002] In the current market, the application scope of mobile phone cameras is becoming wider and wider, and customers have higher and higher requirements for the quality of lenses and their modules. Lens or module defects will not only affect customers' perception of the product's appearance, but also affect the imaging quality. However, plastic lenses are easily affected by the external environment during the production process, and will produce bubbles, scratches, pitting and other defects. Therefore, the lens must be tested before leaving the factory. The existing means of testing mobile phone lens modules are mostly through manual observation of whether the lens has defects under a high-power magnifying glass. This method is difficult to detect small pixel defects, and there are problems such as inaccurate manual conjecture, time-consuming and labor-intensive. In short, the accuracy and efficiency of manual detection of lens defects are not high.

[0003] The prior art discloses an optical lens surface defect detection device, which belongs to the field of optical lens technology. It includes a magnifying glass and a base, on which a support rod is vertically arranged, the support rod is hollow, an adjustment rod is slidably arranged in the support rod, the magnifying glass is rotatably arranged on the top of the adjustment rod, a connecting rod is arranged on the base, and a clamping frame for clamping the optical lens to be detected is arranged on the connecting rod. The prior art determines whether the lens has defects by manually observing under a magnifying glass. The device is difficult to detect small pixel defects, and there are problems such as inaccurate manual assumptions, time-consuming and labor-consuming. The accuracy and efficiency of manual detection of lens defects are not high. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems existing in the prior art and provide a lens defect detection device. The utility model can not only improve the detection accuracy of the lens, but also improve the detection efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides a lens defect detection device, comprising: a workbench and a three-station rotating platform arranged on the workbench, a speckle shooting camera, a speckle observation screen, a detection light source, a loading module, and a detection and controller, wherein the speckle shooting camera is located below the speckle observation screen, and the speckle shooting camera is detachably connected to the workbench; the three-station rotating platform comprises three stations, and the detection light source is connected to the end of each station of the three-station rotating platform; a sample to be detected is placed in the loading module, and the loading module sends the sample to be detected to the end of the station of the three-station rotating platform, a position that can be irradiated by the detection light source and can be photographed by the speckle shooting camera; the detection and controller is located below the workbench, and a signal output end of the speckle shooting camera is electrically connected to a signal input end of the detection and controller.

[0006] Preferably, the device further comprises: a material unloading module, a positioning annular light source, a positioning camera and a positioning correction camera bracket,

[0007] The unloading module is arranged on the workbench, and the tested samples are placed in the unloading module; the positioning ring light source is arranged at the lower left of the loading module, and the positioning ring light source is fixedly connected to the workbench, and the positioning camera is located directly below the positioning ring light source, and the positioning camera is detachably connected to one end of the positioning correction bracket, and the other end of the positioning correction bracket is connected to the workbench, and the positioning camera is used to take photos of the placement angle of the lens to be tested.

[0008] Preferably, the device further comprises: two partitions, a fixer, and a transversely adjustable rod.

[0009] Each of the partitions is arranged in parallel and spaced apart and vertically connected to the workbench, and two sides of the speckle observation screen are respectively connected to the two partitions;

[0010] The fixer is located below the transversely adjustable rod, and the fixer fixes the transversely adjustable rod on the workbench; the transversely adjustable rod is parallel to the surface of the workbench, and the speckle capturing camera is arranged on the transversely adjustable rod, and the speckle capturing camera can move left and right on the transversely adjustable rod.

[0011] Preferably, the loading module includes: an X-direction linear motor, a Y-direction linear motor, a Z-direction linear motor, a loading nozzle body and a module to be detected, the Y-direction linear motor is connected to the workbench along the width direction of the workbench; the X-direction linear motor is arranged along the length direction of the workbench, and the X-direction linear motor is arranged on the Y-direction linear motor; the Z-direction linear motor is vertically arranged on the X-direction linear motor; the loading nozzle body is arranged at the bottom end of the Z-direction linear motor; the sample to be detected is placed in the module to be detected, the module to be detected is located below the X-direction linear motor, the module to be detected is arranged on the workbench, and the loading nozzle body sends the sample to be detected in the module to be detected to the positioning annular light source.

[0012] Preferably, the module to be detected includes: a sample container to be detected and a feeding area conveying bin, the feeding area conveying bin is arranged on the workbench, the sample container to be detected is located between the feeding area conveying bin and the X-direction linear motor, the sample container to be detected is connected to the feeding area conveying bin, a first opening is provided on the lower surface of the sample container to be detected, a second opening is provided on the upper surface of the feeding area conveying bin, the first opening is communicated with the second opening, the sample to be detected is placed in the sample container to be detected, and the sample to be detected in the sample container is sent to the positioning annular light source by the feeding nozzle body.

[0013] Preferably, the material unloading module comprises: a material unloading X-direction linear motor, a material unloading Y-direction linear motor, a material unloading Z-direction linear motor, a material unloading nozzle body and a detection and classification module, wherein the material unloading Y-direction linear motor is connected to the workbench along the width direction of the workbench; the material unloading X-direction linear motor is arranged along the length direction of the workbench, and the material unloading X-direction linear motor is arranged on the material unloading Y-direction linear motor; the material unloading Z-direction linear motor is vertically connected to the material unloading X-direction linear motor, and the material unloading nozzle body is arranged at the bottom end of the material unloading Z-direction linear motor; the detection and classification module is located below the material unloading X-direction linear motor, the detection and classification module is arranged on the workbench, and the detected samples are sent to the detection and classification module by the material unloading nozzle body.

[0014] Preferably, the detection and classification module includes: a defective sample delivery chamber and a non-defective sample delivery chamber,

[0015] The defective sample conveying bin and the flawless sample conveying bin are both arranged on the workbench, and the defective sample conveying bin and the flawless sample conveying bin are both located below the unloading X-direction linear motor;

[0016] The unloading nozzle body delivers the inspected samples to the defective sample conveying bin or the non-defective sample conveying bin.

[0017] Preferably, the detection and classification module further comprises: a defective sample container and a non-defective sample container,

[0018] The defective sample container is located between the defective sample conveying bin and the unloading X-direction linear motor, the defective sample container is connected to the defective sample conveying bin, a third opening is provided on the lower surface of the defective sample container, a fourth opening is provided on the upper surface of the defective sample conveying bin, and the third opening is communicated with the fourth opening; the unloading nozzle body conveys the sample in the defective sample conveying bin to the defective sample container through the third opening and the fourth opening;

[0019] The flawless sample container is located between the flawless sample transfer bin and the unloading X-direction linear motor, the flawless sample container and the flawless sample transfer bin are connected, a fifth opening is provided on the lower surface of the flawless sample container, a sixth through hole is provided on the upper surface of the flawless sample transfer bin, and the fifth opening is communicated with the sixth opening; the unloading nozzle body transfers the sample in the flawless sample transfer bin to the flawless sample container through the fifth opening and the sixth opening.

[0020] Preferably, the detection light source is an LD laser light source.

[0021] Preferably, the wavelength of the LD laser light source is between 500-600 nm.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] The utility model adopts speckle development imaging technology to magnify pixel defects on the surface of the lens without losing defect information, wherein the speckle development imaging technology is to generate an object wave by laser irradiation on the lens to be detected, and the diffraction pattern generated by the object wave when projected onto the observation screen can magnify the defect, and then use a speckle shooting camera to shoot the diffraction image to obtain an image, and judge whether there is a defect in the sample by analyzing the image. This technology makes the pixel defect feature more obvious, reduces the time spent on manual detection under a magnifying glass, avoids the problem of inaccurate manual conjecture, and improves the accuracy and efficiency of lens defect detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of a lens defect detection device according to an embodiment of the utility model;

[0025] Figure 2 This is a detection light source diagram of a lens defect detection device according to an embodiment of the utility model;

[0026] Figure 3 This is an imaging principle diagram of a lens defect detection device according to an embodiment of the utility model.

[0027] Description of the numbers in the figure:

[0028] 001, workbench; 002, detection and controller; 003, three-station rotating platform; 101, linear motor in X-axis direction; 102, linear motor in Y-axis direction; 103, linear motor in Z-axis direction; 104, loading nozzle body; 105, sample container to be detected; 106, loading area conveying bin; 107, positioning annular light source; 108, positioning camera; 109, positioning correction camera bracket; 201, fixture; 202, horizontally adjustable rod; 203, speckle shooting camera; 301, linear motor in X-axis direction for unloading; 302, linear motor in Y-axis direction for unloading; 303, linear in Z-axis direction for unloading; 304, unloading nozzle body; 305, defective sample container; 306, defective sample conveying bin; 307, flawless sample container; 308, flawless sample conveying bin; 801, detection light source. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] Embodiment 1

[0031] like Figure 1 As shown, a lens defect detection device according to a preferred embodiment of the utility model comprises:

[0032] The workbench 001 and the three-station rotating platform 003, the speckle shooting camera 203, the speckle observation screen 204, the detection light source 801, the loading module, the detection and controller 002 arranged on the workbench 001, the speckle shooting camera 203 is located below the speckle observation screen 204, and the speckle shooting camera 203 is detachably connected to the workbench 001; the three-station rotating platform includes three stations, and the detection light source 801 is connected to the end of each station of the three-station rotating platform 003; the sample to be detected is placed in the loading module, and the loading module sends the sample to be detected to the end of the station of the three-station rotating platform 003, where it can be illuminated by the detection light source 801 and a position that can be photographed by the speckle photography camera 203; the detection and controller 002 is located below the workbench 001, and the signal output end of the speckle photography camera 203 is electrically connected to the signal input end of the detection and controller 002. In this embodiment, the sample to be detected is sent to the end of the station of the three-station rotating platform for assembly and detection through the loading module. The device is equipped with a detection light source at each end of the three-station rotating platform. During detection, the detection light source emits laser, and the laser generates a diffraction pattern on the speckle observation screen after passing through the sample to be detected. The speckle photography camera captures the pattern. People only need to analyze the image to determine whether the sample has defects. In this embodiment, in order to obtain better imaging effect, the detection light source adopts LD laser light source, whose wavelength is between 500-600nm, which has good penetration ability and small scattering; the speckle shooting camera adopts MER-2000-5GM / CP, with a pixel of 2000W (5496×3672). The camera adopts Sony IMX183 CMOS photosensitive chip, which is a high-resolution image sensor with the characteristics of high sensitivity, low noise and high dynamic range. In addition, in order to make the stripe spacing large and the light and dark effect good, the camera lens adopts Japan Computar (Kangbiaoda) 1 inch 2000W pixel fixed focus lens, model V0826-MPZ.

[0033] Embodiment 2

[0034] like Figure 1 As shown, a lens defect detection device according to an embodiment of the utility model further includes: a material unloading module, a positioning annular light source 107, a positioning camera 108 and a positioning correction camera bracket 109.

[0035] The unloading module is arranged on the workbench 001, and the tested samples are placed in the unloading module; the positioning annular light source 107 is arranged at the lower left of the loading module, and the positioning annular light source 107 is fixedly connected to the workbench 001, and the positioning camera 108 is located directly below the positioning annular light source 107, and the positioning camera 108 is detachably connected to one end of the positioning correction bracket 109, and the other end of the positioning correction bracket 109 is connected to the workbench 001, and the positioning camera 109 is used to take a photo of the placement angle of the lens to be tested. If the placement angle of the sample to be tested is correct, the loading module will send the sample to be tested to the three-station testing platform 202 for assembly and testing, and the placement angle of the sample to be tested is If there is an offset, the placement angle is automatically adjusted. In this embodiment, by controlling the linear motor in the X-axis direction, the linear motor in the Y-direction and the linear motor in the Z-direction, the loading nozzle body can send the lens to be inspected to the positioning ring light source, turn on the positioning ring light source to illuminate the lens to be inspected, and the positioning camera takes the image of the lens after illumination. By analyzing the position of the image, it is determined whether the angle of the lens is placed correctly. If correct, the loading nozzle body will send the lens to be inspected to the end of the three-station rotating platform for inspection. If not, the placement angle is automatically adjusted. After the adjustment, the loading nozzle body will send the lens to be inspected to the end of the three-station rotating platform for inspection.

[0036] Furthermore, if Figure 1 As shown, a lens defect detection device according to an embodiment of the utility model further includes: two partitions, a fixer 201, and a transversely adjustable rod 202.

[0037] Each partition is arranged in parallel and spaced apart and vertically connected to the workbench 001, and the two sides of the speckle observation screen 204 are respectively connected to the two partitions;

[0038] The fixer 201 is located below the transversely adjustable rod 202, and the fixer fixes the transversely adjustable rod 202 on the workbench 001; the transversely adjustable rod 202 is parallel to the surface of the workbench 001, and the speckle capturing camera 203 is arranged on the transversely adjustable rod 202, and the speckle capturing camera 203 moves left and right on the transversely adjustable rod 202. In this embodiment, the speckle capturing camera is arranged on the transversely adjustable rod, and the camera shooting range can be adjusted according to actual conditions, which is more practical.

[0039] Embodiment 3

[0040] like Figures 1 to 3As shown, a lens defect detection device of an embodiment of the utility model, a loading module includes: an X-direction linear motor 101, a Y-direction linear motor 102, a Z-direction linear motor 103, a loading nozzle body 104 and a module to be detected, the Y-direction linear motor 102 is connected to the workbench 001 along the width direction of the workbench 001; the X-direction linear motor 101 is arranged along the length direction of the workbench 001, and the X-direction linear motor 101 is arranged on the Y-direction linear motor 102; the Z-direction linear motor 103 is vertically arranged on the X-direction linear motor 101; the loading nozzle body 104 is arranged at the bottom end of the Z-direction linear motor 103; the sample to be detected is placed in the module to be detected, the module to be detected is located below the X-direction linear motor 101, the module to be detected is arranged on the workbench 001, and the loading nozzle body 104 sends the sample to be detected in the module to be detected to the positioning ring light source 107. The module to be detected includes: a sample container 105 to be detected and a feeding area conveying bin 106, the feeding area conveying bin 106 is arranged on the workbench 001, the sample container 105 to be detected is located between the feeding area conveying bin 106 and the X-direction linear motor 101, the sample container 105 to be detected is connected to the feeding area conveying bin 106, the lower surface of the sample container 105 to be detected is provided with a first opening, the upper surface of the feeding area conveying bin 106 is provided with a second opening, the first opening is communicated with the second opening, the sample to be detected is placed in the sample container 105 to be detected, and the sample to be detected in the sample container 105 to be detected is sent to the positioning annular light source 107 by the feeding nozzle body 104. In this embodiment, the detection and controller can control the Y-direction linear motor to make the X-direction linear motor move along the width direction of the workbench, control the X-direction linear motor to make the Z-axis linear motor move along the length direction of the workbench, and control the Z-axis linear motor to make the loading nozzle body move along the height direction of the workbench. The detection and controller controls the X-axis linear motor, the Y-direction linear motor and the Z-direction linear motor to make the loading nozzle body move forward, backward, left, right, up and down, thereby realizing that the loading nozzle body sends the detection lens to the positioning for positioning and sends it to the end of the station of the three-station rotating platform for assembly and detection.

[0041] Furthermore, in a lens defect detection device according to an embodiment of the present invention, the blanking module comprises: a blanking X

[0042] The blanking Y-direction linear motor 301, the blanking Y-direction linear motor 302, the blanking Z-direction linear motor 303, the blanking nozzle body 304 and the detection and classification module, the blanking Y-direction linear motor 302 is connected to the workbench 001 along the width direction of the workbench 001; the blanking X-direction linear motor 301 is arranged along the length direction of the workbench 001, and the blanking X-direction linear motor 301 is arranged on the blanking Y-direction linear motor 302; the blanking Z-direction linear motor 303 is vertically connected to the blanking X-direction linear motor 301, and the blanking nozzle body 304 is arranged at the bottom end of the blanking Z-direction linear motor 303; the detection and classification module is located below the blanking X-direction linear motor 301, and the detection and classification module is arranged on the workbench 001, and the detected samples are sent to the detection and classification module by the blanking nozzle body 304. Among them, the detection and classification module includes: a defective sample conveying bin 306 and a flawless sample conveying bin 308, both of which are arranged on the workbench 001, and both of which are located below the unloading X-direction linear motor 301; the unloading nozzle body 304 sends the inspected samples to the defective sample conveying bin 306 or the flawless sample conveying bin 308. Finally, the detection and classification module also includes: a defective sample container 305 and a non-defective sample container 307, the defective sample container 305 is located between the defective sample transfer bin 306 and the unloading X-direction linear motor 301, the defective sample container 305 is connected to the defective sample transfer bin 306, the lower surface of the defective sample container 305 is provided with a third opening, the upper surface of the defective sample transfer bin 306 is provided with a fourth opening, and the third opening is communicated with the fourth opening; the unloading nozzle body 304 sends the sample in the defective sample transfer bin 306 to the third opening. The flawless sample container 307 is located between the flawless sample transfer chamber 308 and the unloading X-direction linear motor 301, the flawless sample container 307 is connected to the flawless sample transfer chamber 308, a fifth opening is provided on the lower surface of the flawless sample container (307), a sixth through hole is provided on the upper surface of the flawless sample transfer chamber 308, and the fifth opening is communicated with the sixth opening; the unloading nozzle body 304 transfers the sample in the flawless sample transfer chamber 308 to the flawless sample container 307 through the fifth opening and the sixth opening.In this embodiment, the detection and controller controls the Y-direction linear motor of the blanking material so that the X-direction linear motor of the blanking material moves along the width direction of the workbench; controls the X-axis direction linear motor of the blanking material so that the Z-direction linear motor of the blanking material moves along the length direction of the work; controls the Z-axis direction linear motor of the blanking material so that the blanking nozzle body moves along the height direction of the workbench. In short, the detection and controller controls the X-direction linear motor of the blanking material, the Y-direction linear motor of the blanking material and the Z-direction linear motor of the blanking material so that the blanking nozzle body performs three-dimensional movement along the front, back, left, right, up and down of the workbench, thereby realizing that the blanking nozzle body sends the inspected samples to the defective sample conveying bin or the non-defective sample conveying bin according to the detection results.

[0043] The working process of the utility model is as follows: the staff places the lens to be tested in the sample container to be tested, the feeding nozzle body sends the lens to be tested to the feeding area conveying bin, the detection and controller control the Y direction linear motor to work, so that the X direction linear motor moves along the width direction of the workbench, the detection and controller control the X direction linear motor to work, so that the Z direction linear motor moves along the length direction of the workbench, the detection and controller control the Z direction linear motor to work, so that the feeding nozzle body moves along the height direction of the workbench, the detection and controller control the X direction linear motor and the Y direction linear motor to work, so that the feeding nozzle body moves along the height direction of the workbench, and the detection and controller control the X direction linear motor and the Y direction linear motor to work. The A-direction linear motor and the Z-direction linear motor work, so that the loading nozzle body sends the lens in the loading and conveying bin to the positioning ring light source for placement angle detection. After the placement angle of the lens is correct, the loading nozzle body sends the lens to the three-working rotating platform for assembly. After the assembly is completed and the lens is obtained, the detection and controller controls the three-station rotating platform to send the lens on the station to the detection area for detection. If the lens is defective, the unloading nozzle body sends the defective lens to the defective sample container. If the lens is not defective, the unloading nozzle body sends the non-defective lens to the non-defective sample container.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A lens defect detection device, characterized in that: The device comprises: a workbench (001) and a three-station rotating platform (003) arranged on the workbench (001), a speckle shooting camera (203), a speckle observation screen (204), a detection light source (801), a loading module, and a detection and controller (002), wherein the speckle shooting camera (203) is located below the speckle observation screen (204), and the speckle shooting camera (203) is detachably connected to the workbench (001); the three-station rotating platform comprises three stations, and the detection light source (801) is connected to the workbench (001); The detection and controller (002) is connected to the end of each station of the three-station rotating platform (003); the sample to be detected is placed in the loading module, and the loading module sends the sample to be detected to the end of the station of the three-station rotating platform (003), a position where it can be illuminated by the detection light source (801) and can be photographed by the speckle shooting camera (203); the detection and controller (002) is located below the workbench (001), and the signal output end of the speckle shooting camera (203) is electrically connected to the signal input end of the detection and controller (002).

2. A lens defect detection device according to claim 1, characterized in that: The device further comprises: a material unloading module, a positioning annular light source (107), a positioning camera (108) and a positioning correction camera bracket (109). The unloading module is arranged on the workbench (001), and the tested samples are placed in the unloading module; the positioning annular light source (107) is arranged at the lower left of the loading module, the positioning annular light source (107) is fixedly connected to the workbench (001), the positioning camera (108) is located directly below the positioning annular light source (107), the positioning camera (108) is detachably connected to one end of the positioning correction camera bracket (109), the other end of the positioning correction camera bracket (109) is connected to the workbench (001), and the positioning camera (108) is used to take a photo of the placement angle of the lens to be tested.

3. A lens defect detection device according to claim 2, characterized in that: The device further comprises: two partitions, a fixer (201), and a transversely adjustable rod (202). Each of the partitions is arranged in parallel and spaced apart and vertically connected to the workbench (001), and two sides of the speckle observation screen (204) are respectively connected to the two partitions; The fixer (201) is located below the transversely adjustable rod (202), and the fixer (201) fixes the transversely adjustable rod (202) on the workbench (001); the transversely adjustable rod (202) is parallel to the surface of the workbench (001), and the speckle capturing camera (203) is arranged on the transversely adjustable rod (202), and the speckle capturing camera (203) moves left and right on the transversely adjustable rod (202).

4. The lens defect detection device according to claim 2, characterized in that: The loading module comprises: an X-direction linear motor (101), a Y-direction linear motor (102), a Z-direction linear motor (103), a loading nozzle body (104) and a module to be detected, wherein the Y-direction linear motor (102) is connected to the workbench (001) along the width direction of the workbench (001); the X-direction linear motor (101) is arranged along the length direction of the workbench (001), and the X-direction linear motor (101) is arranged on the Y-direction linear motor (102); The Z-direction linear motor (103) is vertically arranged on the X-direction linear motor (101); the loading nozzle body (104) is arranged at the bottom end of the Z-direction linear motor (103); the sample to be detected is placed in the module to be detected, the module to be detected is located below the X-direction linear motor (101), the module to be detected is arranged on the workbench (001), and the loading nozzle body (104) sends the sample to be detected in the module to be detected to the positioning annular light source (107).

5. A lens defect detection device according to claim 4, characterized in that: The module to be detected comprises: a sample container to be detected (105) and a feeding area conveying bin (106); the feeding area conveying bin (106) is arranged on the workbench (001); the sample container to be detected (105) is located between the feeding area conveying bin (106) and the X-direction linear motor (101); the sample container to be detected (105) is connected to the feeding area conveying bin (106); a first opening is provided on the lower surface of the sample container to be detected (105); a second opening is provided on the upper surface of the feeding area conveying bin (106); the first opening is communicated with the second opening; the sample to be detected is placed in the sample container to be detected (105); and the sample to be detected in the sample container to be detected (105) is sent to the positioning annular light source (107) by the feeding nozzle body (104).

6. The lens defect detection device according to claim 4, characterized in that: The material unloading module comprises: a material unloading X-direction linear motor (301), a material unloading Y-direction linear motor (302), a material unloading Z-direction linear motor (303), a material unloading nozzle body (304) and a detection and classification module, wherein the material unloading Y-direction linear motor (302) is connected to the workbench (001) along the width direction of the workbench (001); the material unloading X-direction linear motor (301) is arranged along the length direction of the workbench (001), and the material unloading X-direction linear motor (301) is arranged The material is disposed on the Y-direction linear motor (302) for material unloading; the material is disposed on the Z-direction linear motor (303) for material unloading vertically connected to the X-direction linear motor (301), and the material unloading nozzle body (304) is disposed at the bottom end of the Z-direction linear motor (303) for material unloading; the detection and classification module is located below the X-direction linear motor for material unloading; the detection and classification module is disposed on the workbench (001), and the detected samples are sent to the detection and classification module by the material unloading nozzle body (304).

7. The lens defect detection device according to claim 6, characterized in that: The detection and classification module comprises: a defective sample transfer chamber (306) and a non-defective sample transfer chamber (308), The defective sample conveying chamber (306) and the non-defective sample conveying chamber (308) are both arranged on the workbench (001), and the defective sample conveying chamber (306) and the non-defective sample conveying chamber (308) are both located below the blanking X-direction linear motor (301); The unloading nozzle body (304) delivers the inspected sample to the defective sample delivery chamber (306) or the non-defective sample delivery chamber (308).

8. The lens defect detection device according to claim 7, characterized in that: The detection and classification module further includes: a defective sample container (305) and a non-defective sample container (307), The defective sample container (305) is located between the defective sample transfer chamber (306) and the unloading X-direction linear motor (301), the defective sample container (305) and the defective sample transfer chamber (306) are connected, a third opening is provided on the lower surface of the defective sample container (305), a fourth opening is provided on the upper surface of the defective sample transfer chamber (306), and the third opening is communicated with the fourth opening; the unloading nozzle body (304) transfers the sample in the defective sample transfer chamber (306) to the defective sample container (305) through the third opening and the fourth opening; The flawless sample container (307) is located between the flawless sample transfer chamber (308) and the unloading X-direction linear motor (301), the flawless sample container (307) and the flawless sample transfer chamber (308) are connected, a fifth opening is provided on the lower surface of the flawless sample container (307), a sixth opening is provided on the upper surface of the flawless sample transfer chamber (308), and the fifth opening is communicated with the sixth opening; the unloading nozzle body (304) transfers the sample in the flawless sample transfer chamber (308) to the flawless sample container (307) through the fifth opening and the sixth opening.

9. The lens defect detection device according to claim 1, characterized in that: The detection light source (801) is an LD laser light source.

10. The lens defect detection device according to claim 9, characterized in that: The wavelength of the LD laser light source is between 500-600nm.

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