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Multispectral reflective filtering mechanism

A reflective, multi-spectral technology, applied in the field of space remote sensing, can solve the problems of low transmission efficiency of the transmissive filter, large size of the rotary wheel, and difficult development, etc., to achieve enhanced real-time performance and controllability, The deceleration with large speed ratio is compact, and the effect of improving motion accuracy and stability

Inactive Publication Date: 2011-05-11
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

However, the transmission efficiency of the transmissive filter is low. Since multiple filters need to be placed along the light direction at the same time, the size of the rotary wheel of the transmissive filter wheel mechanism is relatively large, making it difficult to develop and low in reliability. , and a large disturbance will be generated during the imaging process

Method used

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] Such as figure 1 As shown, the multispectral reflective filter mechanism of the present invention includes a multispectral reflective filter assembly 1 and a filter switching mechanism 2; the multispectral reflective filter assembly 1 passes through the filter switching mechanism The rotary shaft 12 and the key 13 in 2 are connected with the filter switching mechanism 2. The multispectral reflective filter assembly 1 includes a polyhedral filter holder 11, a first reflective filter 18, a second reflective filter 19, a third reflective filter 20, a fourth reflective filter Filter 21, the fifth reflective filter 22; the first reflective filter 18, the second reflective filter 19, the third reflective filter 20, the fourth reflective filter 21, The fifth reflective filter 22 is mounted on the polyhedral filter holder 11 by glue....

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Abstract

The invention relates to a mechanism realizing multispectral reflective filtering, belonging to the technical field of space remote sensing. At present, the multispectral filtering mechanism of a space optical remote sensor is always a transmission-type optical filter turning wheel mechanism, but the transmission efficiency of the transmission-type optical filter is lower, and the turning wheel has the disadvantages of large size, large development difficulty, low reliability and big disturbance in the imaging process. In order to eliminate the defects in the prior art, the invention aims to provide a multispectral reflective filtering mechanism comprising a multispectral reflective optical filter assembly and an optical filter switching mechanism, wherein the multispectral reflective optical filter assembly and the optical filter switching mechanism are connected by a revolving axle and a key in the optical filter switching mechanism. The mechanism can effectively improve filtering transmission efficiency and has the advantages of small volume and good stability.

Description

technical field [0001] The invention belongs to the technical field of space remote sensing, and relates to a mechanism for realizing multispectral reflective filtering. Background technique [0002] At present, the multispectral filter mechanism of space optical remote sensor often adopts the transmissive filter wheel mechanism, and the transmissive filter is installed in the rotary wheel, and the filter is switched by the circular motion of the rotary wheel. . However, the transmission efficiency of the transmissive filter is low. Since multiple filters need to be placed along the light direction at the same time, the size of the rotary wheel of the transmissive filter wheel mechanism is relatively large, making it difficult to develop and low in reliability. , and a large disturbance will be generated during the imaging process. Contents of the invention [0003] In view of the above situation, in order to solve the defects of the prior art, the object of the present ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/26G02B5/20
Inventor 樊延超柴方茂杨利伟宋涛曹乃亮
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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