Lens selection device

Abstract

This utility model belongs to the field of lens inspection technology and discloses a lens sorting device, which includes a base plate and a first good product group, a second good product group, and a third good product group arranged coaxially on the base plate. The first good product group and the second good product group are respectively mounted on the base plate via a first bracket and a second bracket. The group to be tested is detachably mounted on the side of the first good product group facing the second good product group and is coaxially arranged with the first good product group. A vertical plate is also mounted on the base plate, and a guide shaft extending along the arrangement direction of the multiple groups is provided on the vertical plate. The third good product group is movably connected to the guide shaft along its length to adjust the distance between the third good product group and the group to be tested. This lens sorting device can simulate the composition of a lens, eliminating the need to assemble all lens components, avoiding the disassembly of defective lenses, saving manpower, reducing material waste, and effectively improving the efficiency of lens sorting.

Description

Technical Field

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

[0002] In the production process of camera lens, whenever the quality of components needs to be judged through imaging selection, it is often necessary to assemble the corresponding components into a complete lens and conduct actual shooting screening on the camera module.

[0003] However, the structure of camera lens components is quite complex, with numerous parts and complicated production processes. Mass production requires a large number of production personnel, and the assembly process is time-consuming, labor-intensive, and inefficient. Furthermore, if the lens is determined to be defective, the assembled lens must be disassembled, the materials recycled, and reassembled before further testing and imaging, resulting in a significant waste of human and material resources.

[0004] Therefore, there is an urgent need for a lens selection device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a lens sorting device that can simulate lens composition, eliminating the need to assemble all lens components, avoiding the disassembly of defective lenses, saving manpower, reducing material waste, and effectively improving the efficiency of lens sorting.

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

[0007] The lens sorting device includes a base plate and a first good product group, a second good product group, and a third good product group located on the base plate and coaxially arranged in sequence, wherein:

[0008] The first good product group and the second good product group are respectively mounted on the base plate via the first bracket and the second bracket. The test group is detachably mounted on the side of the first good product group facing the second good product group and is coaxially mounted with the first good product group.

[0009] A vertical plate is also installed on the base plate, and a guide shaft is provided on the vertical plate extending along the arrangement direction of multiple groups. The third good product group is movably connected to the guide shaft along the length direction to adjust the distance between the third good product group and the group to be tested.

[0010] Optionally, the first bracket includes a first body disposed on the base plate. A stepped mounting hole is provided through the first body. A stepped structure is provided on the periphery of the first good product group. The stepped structure of the first good product group can abut against the stepped surface of the stepped mounting hole. A portion of the first good product group extends out of the stepped mounting hole and connects to the group to be tested.

[0011] Optionally, the first bracket further includes a pressure cap, which is connected to the opening of the stepped mounting hole on the side opposite to the test group and presses against the first good product group.

[0012] Optionally, the first bracket further includes a pressing member, which includes a fixed connecting portion and a pressing portion. The connecting portion is connected to the first body, and the pressing portion extends toward the center of the stepped mounting hole and presses against the periphery of the first good product group on the side opposite to the test group.

[0013] Optionally, the first bracket further includes a guide post and an elastic element. The first body is provided with a connecting ear plate, and a connecting hole is opened on the connecting ear plate. The axis of the connecting hole is parallel to the axis of the stepped mounting hole. The guide post includes a head and a rod. The rod is connected to the connecting hole. The connecting part of the pressing member is sleeved outside the rod and can move along the rod. The elastic element is sleeved outside the rod and clamped between the head and the connecting part.

[0014] Optionally, the upright plate is further provided with a support frame, the support frame including a support rod and a connecting part, the support rod being parallel to and spaced apart from the guide shaft, one end of the support rod being connected to the upright plate, and the other end of the support rod being provided with the connecting part, the connecting part being connected to the guide shaft.

[0015] Optionally, it also includes an image acquisition component, which is disposed on the base plate and located on the side of the third good product group away from the second good product group, and the image acquisition component is disposed opposite to the third good product group.

[0016] Optionally, it also includes a drive assembly, the fixed end of which is disposed on the upright plate, and the output end of which is connected to the third good product group to drive the third good product group to move along the length direction of the guide shaft.

[0017] Optionally, it also includes an aperture assembly disposed on the base plate and located on the side of the second good product group facing the test group.

[0018] Optionally, it also includes a light shield, the two ends of which abut against the first good product group and the upright plate respectively, and the light shield covers the test group, the second good product group and the third good product group.

[0019] The beneficial effects of this utility model are:

[0020] In the lens sorting device provided by this utility model, the base plate provides a mounting foundation and positional support for the first good lens group, the lens-to-be-tested group, the second good lens group, and the third good lens group. Specifically, the first good lens group and the second good lens group are fixed to the base plate by the first bracket and the second bracket, respectively. The lens-to-be-tested group is detachably mounted on the side of the first good lens group facing the second good lens group and is coaxially arranged with the first good lens group. That is, the first good lens group and the second good lens group are both fixed, and the lens-to-be-tested group can be replaced by detaching it from the first good lens group. At the same time, a vertical plate is mounted on the base plate, and a guide shaft extending along the arrangement direction of the groups is provided on the vertical plate. The third good lens group is movably connected to the guide shaft along its length. Through the first bracket, the second bracket, and the guide shaft, the stability and coaxiality of each lens group during installation and sorting can be ensured, thereby ensuring the accuracy of lens sorting.

[0021] During the sorting process, it is not necessary to assemble each group. Simply fix the corresponding group on the bracket and guide shaft, then replace the group to be tested, and adjust the distance between the third good group and the group to be tested by moving the third good group. This allows for the sorting of the groups to be tested with different focal lengths, effectively avoiding the disassembly of defective lenses, saving manpower, reducing material waste, and greatly improving the efficiency of lens sorting. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the lens selection device provided in an embodiment of the present invention;

[0024] Figure 2 This is a partial structural schematic diagram of the lens selection device provided in this embodiment of the utility model;

[0025] Figure 3 This is a first cross-sectional view of the lens selection device provided in this embodiment of the present invention;

[0026] Figure 4 This is a second cross-sectional view of the lens selection device provided in this embodiment of the present invention;

[0027] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0028] Figure 6This is a schematic diagram of the structure of the base plate provided in an embodiment of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the upright plate and guide shaft provided in this embodiment of the utility model;

[0030] Figure 8 This is a structural schematic diagram of the support frame provided in an embodiment of the present utility model.

[0031] In the picture:

[0032] 100. Groups to be tested;

[0033] 10. First Good Product Group; 101. Stepped Structure; 20. Second Good Product Group; 30. Third Good Product Group;

[0034] 1. Base plate; 11. First limiting post; 12. Second limiting post; 13. Third limiting post; 14. Fourth limiting post; 15. Slot; 16. Foot pad;

[0035] 2. First bracket; 21. First body; 211. Stepped mounting hole; 212. Connecting ear plate; 22. Pressure cap; 23. Pressing member; 231. Connecting part; 232. Pressing part; 24. Guide post; 241. Head; 242. Rod part; 25. Elastic element;

[0036] 3. Second support;

[0037] 4. Vertical plate; 41. Guide shaft; 42. Support frame; 421. Support rod; 422. Adapter; 43. Drive component bracket; 44. Fifth limiting post; 45. Sixth limiting post;

[0038] 5. Image acquisition component; 51. Mask; 52. Chipset;

[0039] 6. Aperture assembly;

[0040] 7. Sunshade. Detailed Implementation

[0041] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "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 product of this utility model is in use. They are used only for the convenience of describing this utility model and for 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. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] In the description of this utility model, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this utility model, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0049] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0050] This embodiment provides a lens selection device capable of imaging and selecting a group of lenses. For example... Figures 1-4 As shown, the lens sorting device includes a base plate 1 and a first good product group 10, a second good product group 20, and a third good product group 30 arranged coaxially on the base plate 1. The test group 100 is detachably disposed on the side of the first good product group 10 facing the second good product group 20 and is arranged coaxially with the first good product group 10.

[0051] It is understandable that the first good-quality group 10, the second good-quality group 20, and the third good-quality group 30 are all known and confirmed to be good lens groups. By reasonably arranging the positions of the first good-quality group 10, the second good-quality group 20, the third good-quality group 30, and the group to be tested 100, the actual lens composition can be simulated. Based on this, only the group to be tested 100 needs to be replaced to complete the selection of multiple groups to be tested 100, reducing the time for disassembling lenses and improving work efficiency.

[0052] Specifically, such as Figures 2-4 As shown, the first good lens group 10 and the second good lens group 20 are detachably mounted on the base plate 1 via the first bracket 2 and the second bracket 3, respectively. A vertical plate 4 is also mounted on the base plate 1, detachably connected to it, and a guide shaft 41 extending along the arrangement direction of the multiple groups is provided on the vertical plate 4. The third good lens group 30 is movably connected to the guide shaft 41 along its length. In other words, both the first good lens group 10 and the second good lens group 20 are in a fixed state. Through the first bracket 2, the second bracket 3, and the guide shaft 41, the stability and coaxiality of each lens group during installation and selection can be ensured, thereby ensuring the accuracy of lens selection.

[0053] In this embodiment, when sorting lenses, it is not necessary to assemble the various groups. Instead, the corresponding lens groups are fixed on the corresponding brackets and guide shafts 41 (i.e., the first good group 10 is fixed on the first bracket 2, the second good group 20 is fixed on the second bracket 3, and the third good group 30 is mounted on the guide shaft 41). Then, the group to be tested 100 is replaced. Finally, by moving the third good group 30, the distance between the third good group 30 and the group to be tested 100 is adjusted, and the groups to be tested with different focal lengths can be sorted. This effectively avoids the disassembly of defective lenses, saves manpower, reduces material waste, and greatly improves the efficiency of lens sorting.

[0054] Reference Figure 2 , Figure 3 , Figure 4 and Figure 6 The base plate 1 provides an installation foundation and positional support for the first good product group 10, the test group 100, the second good product group 20, and the third good product group 30. The base plate 1 is respectively equipped with a first limiting post 11, a third limiting post 13, and a fourth limiting post 14 that cooperate with the first bracket 2, the second bracket 3, and the upright plate 4. Inserting the first limiting post 11, the third limiting post 13, and the fourth limiting post 14 into the positioning holes at the bottom of the first bracket 2, the second bracket 3, and the upright plate 4 respectively achieves a stable connection between the first bracket 2, the second bracket 3, and the upright plate 4 and the base plate 1, thereby ensuring the coaxiality of the first good product group 10, the second good product group 20, and the third good product group 30 installed on the first bracket 2, the second bracket 3, and the upright plate 4.

[0055] Specifically, the first support 2 includes a first body 21, which is fixedly connected to the base plate 1. A stepped mounting hole 211 is provided through the first body 21, and a stepped structure 101 is provided on the periphery of the first good product group 10. The stepped structure 101 of the first good product group 10 can abut against the stepped surface of the stepped mounting hole 211. This arrangement helps to improve the reliability of the connection between the first good product group 10 and the first body 21. Simultaneously, a portion of the first good product group 10 protrudes through the stepped mounting hole 211 for connection with the group under test 100, facilitating the disassembly of the group under test 100.

[0056] More specifically, such as Figure 3 and Figure 6As shown, the first bracket 2 also includes a pressure cap 22, which is connected to the opening of the stepped mounting hole 211 on the side opposite to the test group 100 and presses against the first good product group 10. The pressure cap 22 can fix the first good product group 10 and prevent it from coming off the first body 21. Optionally, the pressure cap 22 is interference-fitted with the inner wall of the stepped mounting hole 211 to fix the position between the pressure cap 22 and the first body 21. At the same time, after removing the pressure cap 22, the first good product group 10 can be replaced without damaging it, which protects the integrity of the first good product group 10, avoids material waste, and saves costs.

[0057] More specifically, refer to Figure 2 , Figure 4 and Figure 6 The first support 2 also includes a pressing member 23, which includes a connecting portion 231 and a pressing portion 232 that are fixedly connected. The connecting portion 231 is connected to the first body 21, and the pressing portion 232 extends toward the center of the stepped mounting hole 211 and presses against the periphery of the first good product group 10 on the side opposite to the test group 100. The pressing member 23 can further reliably position and fix the first good product group 10. In this embodiment, the cover 22 and the pressing member 23 are provided simultaneously. It is understood that in some other embodiments, only one of the cover 22 and the pressing member 23 may be provided.

[0058] Continue to refer to Figure 6 The first bracket 2 also includes a guide post 24 and an elastic element 25. A connecting ear plate 212 is provided on the first body 21, and a connecting hole is formed on the connecting ear plate 212. The axis of the connecting hole is parallel to the axis of the stepped mounting hole 211. The guide post 24 includes a head 241 and a rod portion 242. The rod portion 242 is connected to the connecting hole. The connecting portion 231 of the pressing member 23 is sleeved outside the rod portion 242 and can move along the rod portion 242. The elastic element 25 is sleeved outside the rod portion 242 and sandwiched between the head 241 and the connecting portion 231. The guide post 24 guides the movement of the connecting portion 231, and the elastic element 25 provides pressure to the pressing portion 232 of the pressing member 23, ensuring the fixing effect of the pressing member 23. For example, the elastic element 25 can be a spring.

[0059] Optionally, such as Figure 2 , Figure 7 and Figure 8As shown, a support frame 42 is also provided on the upright plate 4. The support frame 42 includes a support rod 421 and a connecting part 422. The support rod 421 is parallel to and spaced apart from the guide shaft 41. One end of the support rod 421 is connected to the upright plate 4, and the other end of the support rod 421 is provided with the connecting part 422, which is connected to the guide shaft 41. When the third good product group 30 moves along the guide shaft 41, the cooperation between the guide shaft 41 and the support frame 42 can effectively prevent the guide shaft 41 from deforming due to gravity, thereby preventing the coaxiality of the third good product group 30 from shifting, and ensuring the stable movement of the third good product group 30.

[0060] Furthermore, the lens sorting device also includes a drive assembly (not shown). The fixed end of the drive assembly is mounted on the upright plate 4, and the output end of the drive assembly is connected to the third good product group 30 to drive the third good product group 30 to move along the length direction of the guide shaft 41. In this embodiment, the drive assembly can be a motor and a PI device connected via communication. The motor is fixed to the upright plate 4 by a drive component bracket 43, see [reference needed]. Figure 7 A fifth limiting post 44 is provided on the upright plate 4, which engages with the limiting hole on the drive component bracket 43. The PI component is fixed to the upright plate 4 via the PI bracket. A sixth limiting post 45 is also provided on the upright plate 4, which engages with the limiting hole on the PI bracket. The motor can drive the movement of the third good product group 30, and the PI component can precisely control the number of movement steps of the third good product group 30 to achieve focusing. When the focus of the third good product group 30 needs to be adjusted, the number of steps can be adjusted through the PI component. The application of the motor and PI component is prior art, and its principle and structure will not be described in detail in this embodiment.

[0061] Alternatively, such as Figures 1-4 As shown, the lens sorting device also includes an image acquisition component 5. The image acquisition component 5 is mounted on the base plate 1 and located on the side of the third good product group 30 opposite to the second good product group 20, with the image acquisition component 5 positioned opposite to the third good product group 30. The image acquisition component 5 is used to perform real-time sorting when the third good product group 30 moves, and determines whether the test group 100 is a qualified product based on whether the pattern of the real-time image meets the requirements.

[0062] Specifically, the image acquisition component 5 includes a shield 51 and a chipset 52. The chipset 52 includes multiple chips, which are spaced apart on the side of the stand plate 4 away from the third good product group 30. One chip faces the third good product group 30 directly. Correspondingly, avoidance holes are provided on the stand plate 4 to avoid light, thereby facilitating image acquisition. The shield 51 covers the chipset 52 to protect it.

[0063] Continue to refer to Figures 2-4The lens selection device also includes an aperture assembly 6. The aperture assembly 6 is mounted on the base plate 1 and located on the side of the second good product group 20 facing the test group 100. The aperture assembly 6 controls the intensity of the passing light beam, ensuring image quality. In this embodiment, the base plate 1 is also provided with a second limiting post 12 that cooperates with the aperture assembly 6. Inserting the second limiting post 12 into the positioning hole at the bottom of the aperture assembly 6 achieves a reliable connection between the aperture assembly 6 and the base plate 1.

[0064] Optionally, such as Figure 1 As shown, the lens sorting device also includes a light shield 7. The two ends of the light shield 7 abut against the first good product group 10 and the upright plate 4, respectively, and the light shield 7 covers the test group 100, the second good product group 20, and the third good product group 30. The light shield 7 can reduce the influence of external light on the sorting of the test group 100, ensuring the accuracy of the sorting.

[0065] Specifically, the light shield 7 includes two support plates and a connecting plate. The two support plates are arranged in parallel and spaced apart, and the connecting plate connects the two support plates to form a U-shaped structure with the opening facing downwards. The first support 2 and the upright plate 4 are respectively provided with a first abutment and a second abutment on their opposite sides. The two sides of the inner wall of the connecting plate can respectively overlap the first abutment and the second abutment, and the two sides of the inner wall of the support plate also abut against the first abutment and the second abutment respectively.

[0066] In this embodiment, the base plate 1 is provided with two slots 15, which are located on both sides of the group and extend along the arrangement direction of the group. The other ends of the two connecting plates can be inserted into the two slots 15 respectively, thereby facilitating the fixing and disassembly of the light shield 7.

[0067] As a preferred option, continue to refer to Figure 1 The bottom of the base plate 1 is provided with foot pads 16, and multiple foot pads 16 are arranged in an array to ensure the stability of the base plate 1. At the same time, the bottom of the foot pads 16 is provided with an anti-slip layer or the foot pads 16 are made of rubber or other materials to give the foot pads 16 anti-slip properties and ensure the stability of the lens selection device during use.

[0068] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lens selection device, characterized in that, Includes a base plate (1) and a first good product group (10), a second good product group (20), and a third good product group (30) arranged coaxially on the base plate (1), wherein: The first good product group (10) and the second good product group (20) are respectively mounted on the base plate (1) via the first bracket (2) and the second bracket (3). The test group (100) is detachably mounted on the side of the first good product group (10) facing the second good product group (20) and is coaxially mounted with the first good product group (10). A vertical plate (4) is also installed on the base plate (1). A guide shaft (41) extending along the arrangement direction of multiple groups is provided on the vertical plate (4). The third good product group (30) is movably connected to the guide shaft (41) along the length direction to adjust the distance between the third good product group (30) and the group to be tested (100).

2. The lens selection device according to claim 1, characterized in that, The first bracket (2) includes a first body (21), which is disposed on the base plate (1). A stepped mounting hole (211) is provided through the first body (21). A stepped structure (101) is provided on the periphery of the first good product group (10). The stepped structure (101) of the first good product group (10) can abut against the stepped surface of the stepped mounting hole (211). A portion of the first good product group (10) passes through the stepped mounting hole (211) and is connected to the group to be tested (100).

3. The lens selection device according to claim 2, characterized in that, The first bracket (2) also includes a pressure cap (22), which is connected to the opening of the stepped mounting hole (211) on the side opposite to the test group (100) and presses against the first good product group (10).

4. The lens selection device according to claim 2, characterized in that, The first bracket (2) further includes a pressing member (23), which includes a connecting part (231) and a pressing part (232) that are fixed together. The connecting part (231) is connected to the first body (21), and the pressing part (232) extends toward the center of the stepped mounting hole (211) and presses against the periphery of the first good product group (10) on the side opposite to the test group (100).

5. The lens selection device according to claim 4, characterized in that, The first bracket (2) further includes a guide post (24) and an elastic element (25). The first body (21) is provided with a connecting ear plate (212). A connecting hole is opened on the connecting ear plate (212). The axis of the connecting hole is parallel to the axis of the stepped mounting hole (211). The guide post (24) includes a head (241) and a rod (242). The rod (242) is connected to the connecting hole. The connecting part (231) of the pressing member (23) is sleeved on the rod (242) and can move along the rod (242). The elastic element (25) is sleeved on the rod (242) and sandwiched between the head (241) and the connecting part (231).

6. The lens selection device according to claim 1, characterized in that, The upright plate (4) is also provided with a support frame (42), which includes a support rod (421) and a connecting part (422). The support rod (421) is parallel to and spaced apart from the guide shaft (41). One end of the support rod (421) is connected to the upright plate (4), and the other end of the support rod (421) is provided with the connecting part (422). The connecting part (422) is connected to the guide shaft (41).

7. The lens selection device according to claim 1, characterized in that, It also includes an image acquisition component (5), which is disposed on the base plate (1) and located on the side of the third good product group (30) away from the second good product group (20), and the image acquisition component (5) is disposed opposite to the third good product group (30).

8. The lens selection device according to claim 1, characterized in that, It also includes a drive assembly, the fixed end of which is disposed on the upright plate (4), and the output end of which is connected to the third good product group (30) to drive the third good product group (30) to move along the length direction of the guide shaft (41).

9. The lens selection device according to any one of claims 1-8, characterized in that, It also includes an aperture assembly (6), which is disposed on the base plate (1) and located on the side of the second good product group (20) facing the test group (100).

10. The lens selection device according to any one of claims 1-8, characterized in that, It also includes a light shield (7), the two ends of which abut against the first good product group (10) and the upright plate (4) respectively, and the light shield (7) covers the test group (100), the second good product group (20) and the third good product group (30).

Images