Four-right-angle-mirror optical path increasing system

A technology of right-angle mirrors and optical path lengthening, which is applied in the optical field, can solve the problems that the detection accuracy cannot be greatly improved, the effect of compressing the space is limited, and the miniaturization cannot be realized, so as to promote the improvement of the accuracy of detection equipment and improve the efficiency of equipment use , The effect of promoting the development of miniaturization

Active Publication Date: 2018-09-21
SHENZHEN SEASCALIGHT TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The increase of the optical path requires an increase in the length of the sample cell, or the increase of the optical path through multiple reflections of the mirror, but the current method of increasing the optical path has limited effects, and can only increase several times, at most two or three Ten times the optical path, the effect of compressing the space is also limited, resulting in the inability of some equipment to be miniaturized or the detection accuracy cannot be greatly improved

Method used

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  • Four-right-angle-mirror optical path increasing system
  • Four-right-angle-mirror optical path increasing system
  • Four-right-angle-mirror optical path increasing system

Examples

Experimental program
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Effect test

Embodiment 1

[0035] figure 1 It is a schematic diagram of the three-dimensional structure of the optical length increasing system of four right-angle mirrors according to an embodiment of the present invention.

[0036] As shown in the figure, right-angle mirror 1 and right-angle mirror 2 form an inner right-angle mirror group, and right-angle mirror 3 and right-angle mirror 4 form an outer right-angle mirror group. Right-angle reflector 1 and right-angle reflector 2 have a certain offset in the left and right directions, the inner right-angle reflector 2 on the right side of the figure is offset inward from the paper, and the right-angle reflector 1 on the left in the figure is offset outward from the paper surface, so Although the right-angle reflector 1 and the right-angle reflector 2 are opposite to each other, they are not completely opposite. There is a gap at the edge of the right-angle reflector 1. When the light exits from the edge of the right-angle reflector 2, the right-angle r...

Embodiment 2

[0042] figure 2 It is a schematic diagram of the three-dimensional structure of the optical length-enhancing system of four right-angle mirrors according to another embodiment of the present invention.

[0043] Such as figure 2 As shown, this embodiment still uses four right-angle mirrors, but the arrangement is slightly different from that of Embodiment 1.

[0044] The right-angle vertex of one right-angle reflector in the inner right-angle reflector group leaves a light-through slit, and one of the right-angle reflectors 3 of the outer right-angle reflector group is placed on the right-angle reflector 1 with the light-through slit. The back of the reflective surface, and the reflective surface is facing the light-passing slit, so that when the reflected light incident from the slit to the outer right-angle reflector 3 is reflected back to the slit from the outer right-angle reflector 3, the reflected light is reflected along the inner right angle. There is a certain spat...

Embodiment 3

[0049] Figure 4 Another is the structure of the embodiment of the present invention, in this four right-angle reflector optical path lengthening system, the arrangement of the inner right-angle reflector group and the outer right-angle reflector group is the same as that of embodiment 1, but in this embodiment, Two confocal focusing optics are added between the two right-angle mirrors in the inner right-angle mirror group to form a confocal optical set. The optical axis of the focusing optical set is parallel to the incident light. The focusing optical set makes the The parallel light reflected by one of the right-angle mirrors in the mirror group is focused by one of the optical trains to the focal point, and then becomes parallel light by another focusing optical train, and then transmitted to the other right-angle mirror of the inner right-angle mirror group . In this way, multiple focusing of the parallel light on the focal point of the confocal optical system can be rea...

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Abstract

The invention relates to a four-right-angle-mirror optical path increasing system comprises a first right-angle mirror (1), a second right-angle mirror (2), a third right-angle mirror (3), and a fourth right-angle mirror (4). The first right-angle mirror (1) and the second right-angle mirror (2) constitute an inner right-angle mirror group. The third right-angle mirror (3) and the fourth right-angle mirror (4) constitute an outer right-angle mirror group. The four-right-angle-mirror optical path increasing system can reflect a light beam in a limited space for hundreds of times, greatly increases the contact optical path between the light beam and an affected object, improves the use efficiency of a device, reduces the space required by the device, promotes the miniaturization developmentof the optical device and improvement in the precision of a detection device.

Description

technical field [0001] The invention relates to the field of optics, in particular to a system for increasing the optical length of four right-angle mirrors. Background technique [0002] When light passes through a substance, the light signal in the absorption wavelength range of the substance will attenuate. According to the wavelength of light and the degree of attenuation of light intensity, the composition and content of the substance can be judged. [0003] When using light to pass through a transparent sample with a low concentration, such as gas, solution, etc., since most of the light source energy passes through the transparent sample and does not interact with the transparent sample, the efficiency of the excitation light source is low. In this case, the optical path length must be increased to increase the degree of interaction between the substance and light, and an obvious attenuation of the optical signal is observed. [0004] The increase of the optical path...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B17/02
CPCG02B17/023
Inventor 黄保坤朱琳
Owner SHENZHEN SEASCALIGHT TECH LTD
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