Simple lens resolution testing device

Abstract

The utility model discloses a simple lens resolution testing device which comprises a base, a vertical support is arranged on one side of the base, a testing lens is arranged on one side, close to the base, of the vertical support, a light source and a testing target plate which are opposite to the testing lens in position are arranged on the base, an L-shaped support is arranged on the base, and the L-shaped support is arranged on the base. The L-shaped support is provided with at least one test port used for placing a to-be-tested lens, and the test port is located among the test lens, the light source and the test target plate. The utility model has the beneficial effects of simple structure, small volume, portability, and very convenient test operation.

Description

Technical Field

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

[0002] Lens resolution, also known as resolving power, is the ability to distinguish the details of the photographed original object. Resolving power is a physical quantity used to describe the ability of a microphotography system to reproduce the fine parts of the photographed original, and is an important index for evaluating the resolving power of an image.

[0003] Existing lens resolution testing devices have complex structures, large volumes, complex operations, and are completely inconvenient to carry around. In the production of lenses, it is often necessary to randomly test the lenses at hand at any time, but the existing lens resolution testing devices are completely unable to handle this situation.

[0004] Therefore, it is necessary to propose a simple lens resolution testing device with a simple structure, small volume, convenient to carry around, and very convenient for testing operations. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and propose a simple lens resolution testing device with a simple structure, small volume, convenient to carry around, and very convenient for testing operations.

[0006] The purpose of the utility model is achieved by the following technical solutions: a simple lens resolution testing device includes a base, a vertical bracket is arranged on one side of the base, a testing lens is arranged on the vertical bracket close to the base, a light source and a testing target board opposite to the position of the testing lens are arranged on the base, an L-shaped bracket is arranged on the base, at least one testing port for placing a lens to be tested is opened on the L-shaped bracket, and the testing port is located between the testing lens, the light source and the testing target board.

[0007] A first sliding groove is opened on the base, and the L-shaped bracket is slidably installed on the first sliding groove.

[0008] The L-shaped bracket includes a base connected to the base, a lifting column is rotatably sleeved with a thread at one end away from the base, a base plate is arranged at the upper end of the lifting column, and the testing port is arranged on the base plate.

[0009] The L-shaped bracket includes a base connected to the base, a lifting column is rotatably sleeved with a thread at one end away from the base, a base plate is arranged at the upper end of the lifting column, and the testing port is arranged on the base plate.

[0010] A second sliding groove is opened on the vertical bracket, a third sliding groove is opened on the base plate close to the vertical bracket, a slider is arranged on the second sliding groove, and the slider is slidably arranged with the third sliding groove.

[0011] At least one bolt through-hole is formed on the vertical support, and a bolt groove matching the bolt through-hole is arranged on the base.

[0012] An installation seat is slidably arranged on the vertical support, and the test lens is arranged on the installation seat.

[0013] A lead screw is rotatably arranged in the vertical support, and the installation seat is connected with the lead screw in a threaded sleeve manner.

[0014] A data transmission line is connected to the test lens.

[0015] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple, the overall volume is very small and portable. When performing a test operation, only the lens to be tested needs to be placed at the test port, and the test lens conducts a test, and the test data is transmitted to a laptop through the data transmission line. The whole process is very simple. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of Embodiment 1 of the present utility model;

[0017] Figure 2 It is a schematic diagram of the slider connection of Embodiment 2 of the present utility model;

[0018] Figure 3 It is a schematic diagram of the lead screw connection of Embodiment 2 of the present utility model;

[0019] In the figure, 1 - base, 11 - first chute, 2 - vertical support, 21 - second chute, 22 - slider, 23 - bolt through-hole, 24 - installation seat, 25 - lead screw, 3 - test lens, 4 - light source and test target board, 5 - L-shaped support, 51 - base, 52 - lifting column, 53 - substrate, 54 - third chute, 6 - lens to be tested, 7 - test port. Detailed Embodiment

[0020] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] Herein, it is noted that the orientation concepts of "left", "right", "up", "down", "front", "rear", "inside", and "outside" in the following solutions are all relative directions, and will not be listed one by one here.

[0022] A simple lens resolution test device, refer to Figure 1, including a base 1. A vertical bracket 2 is detachably arranged on one side of the base 1. Two bolt through holes 23 are formed in the vertical bracket 2, and two bolt through slots corresponding to the bolt through holes 23 are formed in the base 1, and the two are fixedly connected by bolts. A test lens 3 is fixedly arranged at the upper end of the vertical bracket 2 close to the base 1. A light source and a test reticle 4 are arranged on the base 1. A first sliding groove 11 is formed in the base 1. An L-shaped bracket 5 is slidably arranged on the first sliding groove 11. A test port 7 is formed in the L-shaped bracket 5. The test port 7 is located between the light source and the test reticle 4 and the test lens 3. A lens to be tested 6 is detachably placed on the test port 7. For those skilled in the art, the number of test ports 7 can be two, three, etc., which is set according to actual needs. The operator can move the L-shaped bracket 5, which is convenient for placing the lens to be tested 6. For those skilled in the art, the L-shaped bracket can adopt a bracket with a threaded height adjustment structure, so that the height of the L-shaped bracket 5 can be adjusted as needed. A data transmission line is connected to the test lens 3, and the data transmission line can be inserted into a laptop computer. The test lens 3 can transmit the test data to the laptop for processing.

[0023] As a further improvement of the present utility model, it can be further extended according to the above case to provide a variety of new embodiments.

[0024] As the second embodiment of the present utility model, referring to Figure 2 , the L-shaped bracket 5 includes a base 51 slidably arranged in the first sliding groove 11. A lifting column 52 is threadedly rotatably sleeved on the upper end of the base 51. A substrate 53 with a test port 7 is rotatably arranged at the upper end of the lifting column 52. A third sliding groove 54 extending along its elongation direction is formed in the substrate 53. A slider 22 is slidably arranged on the third sliding groove 54. A second sliding groove 21 is formed in the vertical bracket 2 along its elongation direction. The slider 22 is slidably arranged in the second sliding groove 21. Rotating the lifting column 52 can adjust the height of the substrate 53. Sliding the base 51 can adjust the lateral position of the substrate 53.

[0025] Referring to Figure 3 , a lead screw 25 is rotatably arranged in the vertical bracket 2. A handle connected to the lead screw 25 is rotatably arranged on the vertical bracket 2. An installation seat 24 is threadedly rotatably sleeved on the lead screw 25. The installation seat 24 is slidably arranged with the vertical bracket 2. The test lens 3 is arranged on the installation seat 24. Rotating the lead screw 25 can adjust the height of the test lens 3.

[0026] The above are only the preferred embodiments of the present utility model. It should be understood that the present utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above description or the technology or knowledge in the relevant field. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A simple lens resolution test device, comprising a base (1), a vertical bracket (2) being arranged on one side of the base (1), and a test lens (3) being arranged on a side of the vertical bracket (2) close to the base (1), characterized in that: The base (1) is provided with a light source and a test target plate (4) which are located opposite to the test lens (3), and the base (1) is provided with an L-shaped bracket (5). The L-shaped bracket (5) is provided with at least one test port (7) for placing a lens to be tested (6), and the test port (7) is located between the test lens (3) and the light source and the test target plate (4).

2. A simple lens resolution testing device according to claim 1, characterized in that: The base (1) is provided with a first sliding groove (11), and the L-shaped bracket (5) is slidably mounted on the first sliding groove (11).

3. A simple lens resolution testing device according to claim 1, characterized in that: The L-shaped bracket (5) comprises a base (51) connected to the base (1); a lifting column (52) is provided on one end of the base (51) away from the base (1) through a threaded rotation sleeve; a base plate (53) is provided on the upper end of the lifting column (52); and the test port (7) is provided on the base plate (53).

4. A simple lens resolution testing device according to claim 3, characterized in that: The vertical support (2) is provided with a second slide groove (21), the base plate (53) is provided with a third slide groove (54) near the vertical support (2), the second slide groove (21) is provided with a slider (22), and the slider (22) and the third slide groove (54) are slidably arranged.

5. The simple lens resolution testing device according to claim 1, characterized in that: At least one bolt through hole (23) is provided on the vertical bracket (2), and a bolt groove matching the bolt through hole (23) is provided on the base (1).

6. The simple lens resolution testing device according to claim 1, characterized in that: The vertical bracket (2) is slidably provided with a mounting seat (24), and the test lens (3) is arranged on the mounting seat (24).

7. A simple lens resolution testing device according to claim 6, characterized in that: A screw rod (25) is rotatably disposed inside the vertical bracket (2), and the mounting seat (24) is connected to the screw rod (25) by threaded sleeve.

8. The simple lens resolution testing device according to claim 1, characterized in that: The test lens (3) is connected to a data transmission line.

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