CN219348139U

CN219348139U - Portable stray light tester

Info

Publication number: CN219348139U
Application number: CN202222431544.6U
Authority: CN
Inventors: 衣鹏宇; 王赫; 赵宇; 孙旺
Original assignee: Changchun Jingce Photoelectric Technology Co ltd
Current assignee: Changchun Jingce Photoelectric Technology Co ltd
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-07-14
Anticipated expiration: 2032-09-14

Abstract

The utility model relates to the technical field of optical detection and discloses a portable stray light tester which comprises a camera bellows, wherein one side of the camera bellows is fixedly connected with a light inlet cylinder, a lens group is fixedly connected in the light inlet cylinder, one end of the light inlet cylinder is provided with a light inlet, one side of the camera bellows is provided with a light outlet, two sides of the light outlet are provided with sliding grooves, a baffle is connected in the sliding grooves in a sliding manner, one side of the baffle is fixedly connected with a light shield, a light shield is fixedly connected at the joint of the light shield and the baffle, a rotating shaft is connected in a rotating manner, and a triangular prism is fixedly connected on the rotating shaft.

Description

Portable stray light tester

Technical Field

The utility model relates to the technical field of optical detection, in particular to a portable stray light tester.

Background

Stray light refers to incident light that is far from other wavelengths of the absorbed light. Because light emitted by the light source may be reflected from the cabin of the monochromator and the surfaces of other optical elements when passing through the monochromator, dust on the surfaces of the optical elements and in the atmosphere may be scattered, stray light may be generated, and the stray light may affect the imaging quality of the projection objective, the micro-light objective, various photographic objectives and the photographic objective in different sizes, so that the monochromatic light emitted by the light source needs to be detected.

The existing parasitic light tester is mainly used for installing and fixing the light source through the integrating sphere, the light source is detected through the spectrum analyzer, the integrating sphere is troublesome to assemble and disassemble, the integrating sphere is large in volume and inconvenient to move, and the parasitic light tester needs to be repeatedly calibrated during detection, is relatively complex to use, and accordingly influences the detection speed of the light source.

Disclosure of Invention

The present utility model is directed to a portable stray light tester, which solves the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a portable parasitic light tester, includes the camera bellows, camera bellows one side fixedly connected with advances a light section of thick bamboo, advance the interior fixedly connected with lens group of light section of thick bamboo, advance light section of thick bamboo one end and be provided with into the light mouth, camera bellows one side is provided with out the light mouth, out light mouth both sides are provided with the spout, sliding connection has the baffle in the spout, baffle one side fixedly connected with lens hood, the junction fixedly connected with lens hood of lens hood and baffle, lens hood one side is provided with the reflector of fixedly connected on the lens hood inner wall, lens hood one side is provided with the observation mouth, camera bellows internal rotation is connected with the pivot, fixedly connected with prism in the pivot.

As a further scheme of the utility model: the display board matched with the reflector is connected to the inner wall of one side of the light shield, and a spectrogram fixedly connected to the inner wall of the light shield is arranged on one side of the display board.

As a further scheme of the utility model: one end of the rotating shaft penetrates through the camera bellows to be fixedly connected with a knob.

As still further aspects of the utility model: and a colorless transparent lens is arranged on the observation port.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has simple structure and convenient detection, when in use, the light source can be primarily screened and simply analyzed by only turning on the light source and aligning the light inlet cylinder of the device with the light source, and if stray light is detected, the stray light in the light source can be detected and analyzed with high precision by the high-precision detection equipment, so that the detection speed of the light source is accelerated.

Drawings

Fig. 1 is a schematic structural diagram of a portable stray light tester according to the present utility model.

FIG. 2 is a cross-sectional view of a portable stray light tester according to the utility model.

FIG. 3 is a cross-sectional view of a portable stray light tester according to the utility model.

In the figure: 1-camera bellows, 2-light inlet section of thick bamboo, 3-lens group, 4-light inlet, 5-light outlet, 6-spout, 7-triangular prism, 8-knob, 9-lens hood, 10-light screen, 11-reflector, 12-show board, 13-observation mouth, 14-spectrogram, 15-baffle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, in the embodiment of the utility model, a portable stray light tester comprises a camera bellows 1, a light inlet cylinder 2 is fixedly connected to one side of the camera bellows 1, a lens group 3 is fixedly connected to one side of the light inlet cylinder 2, a light inlet 4 is arranged at one end of the light inlet cylinder 2, a light outlet 5 is arranged on one side of the camera bellows 1, sliding grooves 6 are arranged on two sides of the light outlet 5, a baffle 15 is connected in the sliding grooves 6 in a sliding manner, a light shield 9 is fixedly connected to one side of the baffle 15, a light shield 10 is fixedly connected to a connecting part of the light shield 9 and the baffle 15, a reflector 11 fixedly connected to the inner wall of the light shield 9 is arranged on one side of the light shield 10, a display plate 12 matched with the reflector 11 is connected to the inner wall of one side of the light shield 9, an observation port 13 is arranged on one side of the light shield 9, a rotating shaft is connected to the light inlet cylinder 1, a prism 7 is fixedly connected to the rotating shaft, light to be detected enters the light inlet cylinder 2 along the light inlet 4, light beams are adjusted and dispersed through the arrangement of the lens group 3, a large diameter parallel light beams are formed, the parallel light beams are then are reflected and are separated through the prism 7, the parallel light beams, the light beams are separated through the refraction prism 7 and the reflection prism 11 are separated, and the light beams are reflected on the reflector 11 with different reflection prism refractive index reflectors according to different reflection results, and the reflection results are separated.

In one case of the present embodiment, referring to fig. 1 to 3, a spectrogram 14 fixedly connected to the inner wall of the light shielding cover 9 is disposed on one side of the display board 12, and the present utility model can classify the separated light according to the spectrogram 14, so as to analyze the types of stray light.

In one case of this embodiment, referring to fig. 1 to 3, one end of the rotating shaft passes through the camera bellows 1 and is fixedly connected with the knob 8, meanwhile, the rotating shaft can be driven to rotate by screwing the knob 8, and the rotating shaft drives the prism 7 to rotate, so as to adjust the incident angle of the light beam, thereby adjusting the observation width of the light beam, so as to observe the light beam.

In one case of this embodiment, referring to fig. 1 to 3, the observation port 13 is provided with a colorless transparent lens, and the utility model protects the camera bellows 1 by setting a colorless transparent mirror, so as to prevent sundries from entering the camera bellows 1 while not obstructing observation.

The working principle of the utility model is as follows: according to the utility model, light to be detected enters the light inlet tube 2 along the light inlet 4, then the light beam is adjusted and diverged through the arrangement of the lens group 3, so that a parallel light beam with a larger diameter is formed, then the parallel light beam irradiates on the triangular prism 7, different light rays are refracted and separated according to different refractive indexes of different light ray wavelengths in the light beam through the arrangement of the triangular prism 7, the refracted and separated light rays are refracted onto the reflecting mirror 11, then the separated light rays are reflected onto the display plate 12 through the reflecting mirror 11, the separation result of the light beam is observed through the observation opening 13, the separated light rays of the spectrogram 14 are classified, and the type of stray light is analyzed.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a portable stray light tester, includes the camera bellows, its characterized in that, camera bellows one side fixedly connected with advances a light section of thick bamboo, advance the interior fixedly connected with lens group of light section of thick bamboo, advance light section of thick bamboo one end and be provided with into the light mouth, camera bellows one side is provided with out the light mouth, out light mouth both sides are provided with the spout, sliding connection has the baffle in the spout, baffle one side fixedly connected with lens hood, the junction fixedly connected with lens hood of lens hood and baffle, lens hood one side is provided with the reflector of fixedly connected on the lens hood inner wall, lens hood one side is provided with the observation mouth, camera bellows internal rotation is connected with the pivot, fixedly connected with prism in the pivot.

2. The portable stray light tester according to claim 1, wherein a display board matched with the reflector is connected to the inner wall of one side of the light shield, and a spectrogram fixedly connected to the inner wall of the light shield is arranged on one side of the display board.

3. The portable stray light tester according to claim 1, wherein one end of the rotating shaft is fixedly connected with a knob through the camera.

4. The portable stray light tester according to claim 1, wherein a colorless transparent lens is provided on the observation port.