Performance real shooting detection device for dermatoscope lens

Abstract

The utility model relates to a performance real shooting detection device of a dermatoscope lens. The device comprises a detection workbench. A manual lifting platform is arranged on the detection workbench; an aluminum profile underframe is arranged on the manual lifting platform; a camera is fixed on the aluminum profile underframe; a detection adapter ring is screwed in the interface C on the camera in a threaded manner; a detection focusing ring is screwed into the detection adapter ring; a dermatoscope lens to be detected is placed on the detection focusing ring; the camera is connected with a display through a data transmission line; the display is arranged on the detection workbench; a lifting frame is arranged on the manual lifting platform; a vertical adjusting screw rod is arranged on the lifting frame; an extending bracket is arranged on the adjusting screw rod; and the lower surface of the extending bracket is provided with a back light opposite plate. Compared with the prior art, the device has the advantages of good detection effect, high detection efficiency and the like.

Description

Technical Field

[0001] This utility model relates to the field of lens testing technology, and in particular to a device for real-world testing of the performance of a dermoscopic lens. Background Technology

[0002] A dermatoscope, also known as a transdermal microscope, is essentially a skin microscope capable of magnification of tens of times. Its function is similar to that of an ophthalmoscope used in ophthalmology and an otoscope used in otolaryngology; it is a powerful tool for observing pigmented skin disorders. The lens is one of the core components of a dermatoscope, and after its production, it undergoes real-world performance testing to ensure it meets standards.

[0003] However, dermoscopy lenses are small-batch production components, and traditional equipment for measuring the performance of small-batch dermoscopy lenses has a complex structure, high cost, and low performance measurement efficiency, which does not meet the testing needs of small-batch production. Utility Model Content

[0004] The purpose of this invention is to overcome the defects of the existing technology and provide a device for real-world testing of the performance of a dermoscopic lens.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A performance testing device for a dermatoscope lens, comprising a testing worktable; a manually operated lifting platform on the testing worktable; an aluminum profile base on the manually operated lifting platform; a camera fixed on the aluminum profile base; a testing adapter ring screwed into the C-interface of the camera; a testing focusing ring screwed into the testing adapter ring; a dermatoscope lens to be tested placed on the testing focusing ring; the camera connected to a display via a data transmission cable; the display mounted on the testing worktable; a lifting frame on the manually operated lifting platform; a vertical adjusting screw on the lifting frame; an extension bracket on the adjusting screw; and a backlight beam alignment plate on the lower surface of the extension bracket.

[0007] Furthermore, the bottom of the adjusting screw is inserted into the bottom of the manual lifting platform, and the top extends out of the top of the manual lifting platform, both of which are threaded connections; a threadless cylinder is provided in the middle part of the adjusting screw; the protruding bracket is sleeved on the threadless cylinder, and is stopped by the thread limit of the adjusting screw at both the top and bottom.

[0008] Furthermore, a rotating handwheel for rotating the adjusting screw is connected to the top of the adjusting screw.

[0009] Furthermore, a lens positioning hole is provided at the center of the detection focusing ring; the dermatoscope lens to be tested is placed inside the lens positioning hole; the lens positioning hole, the backlight focusing plate, the camera, and the dermatoscope lens to be tested are on the same axis.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] The detection device of this utility model has a simple structure. It only requires placing the lens to be tested in the positioning hole, and then changing the distance between the dermoscopic lens and the camera chip by rotating the detection focusing ring, that is, changing the image distance; and changing the distance between the dermoscopic lens and the backlight plate by rotating the adjusting screw, that is, changing the object distance. The detection can then be performed. It has extremely low cost, high flexibility, and the modification cost for measuring different lens models is extremely low. Moreover, the performance testing efficiency is higher than that of traditional equipment for testing the performance of small-batch production dermoscopic lenses, making it particularly suitable for performance testing of small-batch production dermoscopic lenses. Attached Figure Description

[0012] Figure 1 A schematic diagram of the overall structure of the device provided by this utility model;

[0013] Figure 2 A schematic diagram of the backlit light-adjusting plate assembly structure provided by this utility model;

[0014] Figure 3 This is a schematic diagram of the detection adapter ring structure provided by this utility model;

[0015] Figure 4 A schematic diagram of the planar structure of the manual lifting platform provided by this utility model.

[0016] The labels in the diagram indicate:

[0017] 1. Camera; 2. Focusing ring for testing; 3. Adapter ring for testing; 4. Aluminum profile base frame; 5. Manual lifting platform; 6. Data transmission cable; 7. Monitor; 8. Testing workbench; 9. Dermatoscope lens to be tested; 10. Backlighting plate; 11. Lifting frame; 12. Adjusting screw; 13. Extending bracket; 14. Handwheel. Detailed Implementation

[0018] 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.

[0019] 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.

[0020] 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.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] Example

[0025] like Figures 1-4As shown, a performance testing device for a dermatoscope lens is disclosed. The device includes a testing workbench 8; a manual lifting platform 5 is provided on the testing workbench 8; an aluminum profile base frame 4 is provided on the manual lifting platform 5; a camera 1 is fixed on the aluminum profile base frame 4; a testing adapter ring 3 is screwed into the C-interface of the camera 1 via a thread; a testing focusing ring 2 is screwed into the testing adapter ring 3; a dermatoscope lens 9 to be tested is placed on the testing focusing ring 2; a lens positioning hole is provided at the center of the testing focusing ring 2; the dermatoscope lens 9 to be tested is placed in the lens positioning hole; a lifting frame 11 is provided on the manual lifting platform 5; a vertical adjusting screw 12 is provided on the lifting frame 11; an extension bracket 13 is provided on the adjusting screw 12; a backlight beam alignment plate 10 is provided on the lower surface of the extension bracket 13; the lens positioning hole, the backlight beam alignment plate 10, the camera 1, and the dermatoscope lens 9 to be tested are all present. The camera 1 is connected to a display 7 via a data transmission line 6. The display 7 is mounted on the detection workbench 8. The bottom of the adjusting screw 12 is inserted into the bottom of the manual lifting platform 5, and the top extends out of the top of the manual lifting platform 5, both of which are threaded connections. A threadless cylinder (not shown in the figure) is provided in the middle of the adjusting screw 12. The extension bracket 1 is sleeved on the threadless cylinder, and is stopped both above and below by the thread limit of the adjusting screw 12. When the adjusting screw 12 moves up and down on the lifting frame 11 in the form of threads, the extension bracket 1 moves along with it. Since the two sides of the extension bracket 1 are square structures, it is restricted from rotating, so there will be no left and right offset. Thus, the extension bracket 1 always moves only in the vertical direction, keeping the position of the backlight plate 10 relative to the central axis of the camera 1 unchanged, and always on the same axis. A rotating handwheel 14 for rotating the adjusting screw 12 is connected to the top of the adjusting screw 12.

[0026] The working principle of this utility model is as follows:

[0027] First, turn on the light source of the backlit pair 10 to illuminate it. Place the dermatoscope lens 9 to be tested in the lens positioning hole on the detection focusing ring 2 to ensure that the dermatoscope lens 9 is concentric with the camera 1. Change the distance between the dermatoscope lens 9 and the chip of the camera 1 by rotating the detection focusing ring 2 (i.e., change the image distance). Change the distance between the dermatoscope lens 9 and the backlit pair 10 by rotating the adjusting screw 12 of the manual lifting platform 5 (i.e., change the object distance). After the lens image distance and object distance are adjusted to the required positions, the camera 1 takes a picture of the line pair pattern on the backlit pair 10 and displays it on the monitor 7. The human eye reads the highest line pair resolution value that can be resolved on the line pair board displayed on the monitor 7 to determine whether the dermatoscope lens performance is qualified.

[0028] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for detecting the performance of a dermatoscope lens in real time, characterized in that, The device comprises a detection workbench (8); the detection workbench (8) is provided with a manual lifting platform (5); the manual lifting platform (5) is provided with an aluminum profile chassis (4); the aluminum profile chassis (4) is fixed with a camera (1); the C interface of the camera (1) is screwed with a detection adapter ring (3) in the form of threads; the detection adapter ring (3) is screwed with a detection focusing ring (2); the detection focusing ring (2) is placed with a to-be-detected dermatoscope lens (9); the camera (1) is connected with a display (7) through a data transmission line (6); the display (7) is arranged on the detection workbench (8); the manual lifting platform (5) is provided with a lifting frame (11); the lifting frame (11) is provided with a vertical adjusting lead screw (12); the adjusting lead screw (12) is provided with an extension support (13); the lower surface of the extension support (13) is provided with a back light line pair plate (10).

2. The performance detection device for dermatoscope lens according to claim 1, characterized in that, The bottom of the adjusting lead screw (12) is inserted into the bottom of the manual lifting platform (5), and the top extends out of the top of the manual lifting platform (5), which are both screw connections; the middle part of the adjusting lead screw (12) is provided with a non-threaded cylinder; the extension support (13) is sleeved on the non-threaded cylinder and is limited by the threads of the adjusting lead screw (12) from top to bottom.

3. The performance detection device for dermatoscope lens according to claim 2, characterized in that, The top of the adjusting lead screw (12) is connected with a rotating hand wheel (14) for rotating the adjusting lead screw (12).

4. The performance detection device for dermatoscope lens according to claim 1, characterized in that, The detection focusing ring (2) is provided with a lens positioning hole at the center position; the to-be-detected dermatoscope lens (9) is placed in the lens positioning hole; the lens positioning hole, the back light line pair plate (10), the camera (1) and the to-be-detected dermatoscope lens (9) are on the same axis.

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