A lens stray light generation and analysis system

Abstract

A lens stray light generation and analysis system, wherein a light source rotating mechanism 2 is installed on the left side of the middle of the base 6, a rotating arm is installed and fixed on the top of the light source rotating mechanism 2, and a collimated light source 1 is installed and fixed on the left end of the rotating arm; a camera rotating mechanism 5 is installed on the right side of the middle of the base 6, a rotating arm is installed and fixed on the top of the camera rotating mechanism 5, and a camera 4 is installed and fixed on the right end of the rotating arm; a sample holder 3 is installed in the middle of the base 6, and a sample is placed on the sample holder 3. The utility model can observe the stray light of the lens to be tested in real time, confirm the cause of the stray light, and is easy to operate, and the observation distance and position can be adjusted arbitrarily.

Description

Technical Field

[0001] The utility model relates to the technical field of lenses, in particular to a lens stray light generation and analysis system. Background Art

[0002] At present, most manufacturers only analyze the stray light of lenses at the design simulation analysis stage. There is no equipment on the market to observe and analyze the causes of stray light from lenses. It is also difficult to find out the causes of some stray light that is weak or caused by the process through simulation. As video and imaging technologies are used more and more widely in various fields, lenses are being designed to be smaller and more precise. Therefore, there is an urgent need for such an analysis system that can observe and analyze the stray light of real lenses. Utility Model Content

[0003] In order to solve the problems existing in the above-mentioned prior art, the utility model proposes a lens stray light generation analysis system. By adopting a lens with high magnification and long depth of field and a visual analysis interface, the user can observe the stray light situation inside the lens in real time and find the exact location where the stray light is generated by reverse light path, so that the user can find the cause of the stray light more realistically and accurately, and play an auxiliary role in lens optimization.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A lens stray light generation and analysis system, the system comprises a collimated light source 1, a light source rotation mechanism 2, a sample holder 3, a camera 4, a camera rotation mechanism 5, and a base 6; wherein: the light source rotation mechanism 2 is installed on the left side of the middle part of the base 6, a rotating arm is fixedly installed on the top of the light source rotation mechanism 2, and the collimated light source 1 is fixedly installed on the left end of the rotating arm; the camera rotation mechanism 5 is installed on the right side of the middle part of the base 6, a rotating arm is fixedly installed on the top of the camera rotation mechanism 5, and the camera 4 is fixedly installed on the right end of the rotating arm; the sample holder 3 is installed in the middle part of the base 6, and a sample is placed on the sample holder 3.

[0006] The utility model also has the following additional technical features:

[0007] As a further specific optimization of the technical solution of the utility model: the collimated light source 1 provides parallel light irradiation, and the light source can be an LED or a halogen lamp.

[0008] As a further specific optimization of the technical solution of the utility model: the light source rotating mechanism 2 can make the light source rotate around the lens to be tested, and the distance between the light source and the lens to be tested can be adjusted by moving a slider.

[0009] As a further specific optimization of the technical solution of the utility model: the sample holder 3 is used to clamp the lens to be tested and can adjust the position of the lens.

[0010] As a further specific optimization of the technical solution of the utility model: the camera 4 is used to observe the light emitted from the lens to be tested and confirm the cause of the stray light.

[0011] As a further specific optimization of the technical solution of the utility model: the camera rotating mechanism 5 can enable the camera to rotate around the lens to be tested, and the distance between the camera and the lens to be tested can be adjusted by moving a slider.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model can observe the stray light situation of the lens to be tested in real time, confirm the cause of the stray light, and is easy to operate, and the observation distance and position can be adjusted arbitrarily. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0016] Explanation of the reference numerals: 1, collimated light source; 2, light source rotation mechanism; 3, sample holder; 4, camera; 5, camera rotation mechanism; 6, base. DETAILED DESCRIPTION

[0017] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0018] A lens stray light generation and analysis system, the system comprises a collimated light source 1, a light source rotation mechanism 2, a sample holder 3, a camera 4, a camera rotation mechanism 5, and a base 6; wherein: the light source rotation mechanism 2 is installed on the left side of the middle part of the base 6, a rotating arm is fixedly installed on the top of the light source rotation mechanism 2, and the collimated light source 1 is fixedly installed on the left end of the rotating arm; the camera rotation mechanism 5 is installed on the right side of the middle part of the base 6, a rotating arm is fixedly installed on the top of the camera rotation mechanism 5, and the camera 4 is fixedly installed on the right end of the rotating arm; the sample holder 3 is installed in the middle part of the base 6, and a sample is placed on the sample holder 3.

[0019] The collimated light source 1 provides parallel light irradiation, and the light source can be an LED or a halogen lamp. The light source rotation mechanism 2 allows the light source to rotate around the lens to be tested, and the distance between the light source and the lens to be tested can be adjusted by moving the slider. The sample holder 3 is used to clamp the lens to be tested and can adjust the lens position. The camera 4 is used to observe the light emitted from the lens to be tested and confirm the cause of the stray light. The camera rotation mechanism 5 allows the camera to rotate around the lens to be tested, and the distance between the camera and the lens to be tested can be adjusted by moving the slider.

[0020] The working principle of the lens stray light generation analysis system: The system irradiates the lens to be tested with a collimated light source, and observes the outgoing light of the lens to be tested through a high-magnification and long-depth-of-field lens and a camera on the other side. The brightness of the light inside the lens can be observed. If the components inside the lens, except for the optical area, become significantly brighter, it can be determined that the lens has stray light.

[0021] In actual use: the collimated light source 1 is a collimated light source in the form of an LED or halogen bulb, a diffuser glass, a pinhole plate and a collimator lens. The diffuser glass evens out the light of the LED or halogen bulb and emits it from the pinhole plate. The collimator lens collimates the light emitted from the pinhole plate to achieve collimated illumination. The collimated light source is a common component on the market and has no special design requirements. The light source rotating mechanism 2 includes a rotating motor and a rotating arm. The rotating motor rotates to drive the rotating arm to rotate. There are no special design requirements. The sample holder 3 includes a V-shaped groove and a pressure block. After the lens is placed in the V-shaped groove, the upper part is pressed with a pressure block and the pressure block is fixed. The model of the camera 4 is the British and American DFK23UP031. The camera rotating mechanism 5 includes a rotating motor and a rotating arm. The rotating motor rotates to drive the rotating arm to rotate. There are no special design requirements.

[0022] It should be noted that the design key points of this technical solution lie in the overall structure and position of the collimated light source 1, the light source rotation mechanism 2, the sample holder 3, the camera 4, the camera rotation mechanism 5, and the base 6. It is not a structure of a single component, but only needs to be able to realize the functions of the corresponding components.

[0023] The above 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 represents selected embodiments of the present invention.

Claims

1. A lens stray light generation and analysis system, characterized in that: The system comprises a collimated light source (1), a light source rotating mechanism (2), a sample holder (3), a camera (4), a camera rotating mechanism (5), and a base (6); wherein: the light source rotating mechanism (2) is installed on the left side of the middle of the base (6); a rotating arm is fixedly installed on the top of the light source rotating mechanism (2); and the collimated light source (1) is fixedly installed on the left end of the rotating arm; the camera rotating mechanism (5) is installed on the right side of the middle of the base (6); a rotating arm is fixedly installed on the top of the camera rotating mechanism (5); and the camera (4) is fixedly installed on the right end of the rotating arm; and the sample holder (3) is installed in the middle of the base (6); and a sample is placed on the sample holder (3).

2. The lens stray light generation and analysis system according to claim 1, characterized in that: The collimated light source (1) provides parallel light irradiation, and the collimated light source (1) is an LED or a halogen lamp.

3. The lens stray light generation and analysis system according to claim 1, characterized in that: The light source rotating mechanism (2) enables the light source to rotate around the lens to be tested, and the distance between the light source and the lens to be tested is adjusted by moving a slider.

4. The lens stray light generation and analysis system according to claim 1, characterized in that: The sample holder (3) is used to clamp the lens to be tested and can adjust the position of the lens.

5. The lens stray light generation and analysis system according to claim 1, characterized in that: The camera (4) is used to observe the light emitted from the lens to be tested and to confirm the cause of the stray light.

6. The lens stray light generation and analysis system according to claim 1, characterized in that: The camera rotating mechanism (5) enables the camera to rotate around the lens to be tested, and the distance between the camera and the lens to be tested is adjusted by moving a slider.

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