Method for implementing multiple light paths

A multi-path and light-ray technology, applied in the optical field, can solve the problems of low environmental adaptability and anti-interference ability, poor stability, small aperture angle, etc., and achieve the effect of easy structural design, uncomplicated installation, and simple structure

Active Publication Date: 2014-08-27
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] However, the traditional time-modulated interferometric spectrometer, that is, Michelson interferometer, has two main problems: ① Generally, auxiliary optical path is required, and the structure is complex; ② Poor stability, low environmental adaptability and anti-interference ability
The optical system of the Herriott type long-range pool consists of two concave mirrors, which are characterized by simple structure and relatively easy adjustment of the optical path, but the aperture angle is small, which is suitable for laser light sources

Method used

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  • Method for implementing multiple light paths

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Embodiment Construction

[0034] For the method for realizing multiple optical paths involved in the present invention, see figure 1 , Its preferred embodiment is:

[0035] The method is implemented by the following steps:

[0036] Step 1: Divide each reflective surface of the corner mirror into two areas within the effective aperture of the corner mirror, that is, the three surfaces of the corner mirror are divided into six areas by three partition lines: Ⅰ, Ⅱ, Ⅲ, Ⅳ , Ⅴ and Ⅵ. The division of these six areas meets the following requirements:

[0037] (1) Light travels within the effective aperture of the corner mirror. That is, the rays hitting the corner mirror are reflected once on each reflecting surface of the corner mirror and can be reflected back to the direction of the incident source.

[0038] (2) Relying on the incident direction of the light and the position of the incident point, and dividing the corner mirror according to the path of the light reflected in the corner mirror.

[0039] (3) The pa...

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Abstract

The invention discloses a method and a device for implementing multiple light paths. The device comprises an angle mirror and a refraction lens group, wherein the refraction lens group is arranged on an emergent light path of the angle mirror. The device has a simple structure; the light path is relatively easy to adjust, and engineering is convenient to implement. According to the method for implementing the multiple light paths, 6*2<N> (N is equal to an integer more than zero) light paths are formed; and a light beam is repeatedly reflected by many times in the multi-light-path device, so that the number of effective light paths is increased remarkably and the detection sensitivity is improved.

Description

Technical field [0001] The invention belongs to the field of optical technology, and relates to a method and a device for realizing multiple optical paths. Background technique [0002] Spectroscopy technology is an important method for obtaining the structure and chemical composition of matter, determining the content of matter elements, and studying atomic energy levels. It has been widely used in the fields of industrial and agricultural production, scientific research, environmental monitoring, and aerospace remote sensing. [0003] The emergence of interference spectrometers overcomes the shortcomings of low energy utilization of traditional dispersive spectrometers (spectral prisms, dispersive prisms, diffraction gratings, etc.), while time-modulated interference spectrometers inherit the advantages of traditional interference spectrometers and integrate multiple channels (Felleget advantages) , High throughput (Jacquinot advantage), high wave number accuracy (Connes advantag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B17/08G02B17/06
Inventor 魏儒义高晓惠于涛张学敏胡柄樑景娟娟胡亮
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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