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Dual-channel focal plane registering adjusting device and method

An assembly and adjustment method and a dual-channel technology, applied in image communication, television, electrical components, etc., can solve the problems of difficult registration accuracy at the sub-pixel level of detectors, avoid repeated focusing, improve the efficiency of assembly and adjustment, and avoid The effect of field of view deviation

Active Publication Date: 2018-11-16
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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AI Technical Summary

Problems solved by technology

At present, multi-band remote sensing cameras at home and abroad mostly increase imaging channels through field-of-view spectroscopic methods. After spectroscopically, the detectors of different focal plane channels belong to different structural components, and the sub-pixel level registration accuracy of detectors between different structural components is very important. very difficult

Method used

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  • Dual-channel focal plane registering adjusting device and method
  • Dual-channel focal plane registering adjusting device and method
  • Dual-channel focal plane registering adjusting device and method

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Embodiment Construction

[0039] Such as figure 1 As shown, a dual-channel focal plane registration and adjustment device includes a light source 1, a slit target 2, a collimator 3, a dual-channel focal plane camera system 4, a computer 5, a fine-tuning component 6, a monitoring component 7 and Limiting component 8;

[0040] The spectrum of the light source 1 matches the response spectrum of the detector;

[0041] The slit target 2 is the same as the collimator focal length f 1 , camera focal length f 2 , the detector pixel size D, the camera vertical line array direction line field width C matching the special target;

[0042] Slit target width W=nD f 1 / f 2 , n is the number of pixels occupied by the slit image width, usually 15-20 to achieve the best centroid extraction effect;

[0043] Slit target length L=1.5C f 1 / f 2 , 1.5 is the preferred target length coefficient;

[0044] The viewing angle θ of the collimator 3 1 It should be larger than the field angle θ of the vertical line array d...

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Abstract

The invention relates to a dual-channel focal plane registering adjusting device and method, specially relates to the multi-channel focal plane camera inter-channel high precision registering and adjusting, and belongs to the space optical remote sensor technical field. The method solves the sub-channel focal plane camera inter-channel spectral band registering problem, thus possibly realizing remote sensing camera multi-spectral band detection in a multi-channel mode, and providing important meanings for application and development of resource exploration remote sensing cameras.

Description

technical field [0001] The invention relates to a dual-channel focal plane registration and adjustment device and method, in particular to high-precision registration and adjustment between multi-channel focal plane camera channels, and belongs to the technical field of space optical remote sensors. Background technique [0002] Multi-band imaging is the main feature of remote sensing cameras for resource exploration, and the use of multi-band detectors is the main way to achieve multi-type scene imaging. However, when the type of target scene exceeds the number of bands of a single detector, it is necessary to increase the type of detectors, that is, to achieve the imaging requirements of more bands by increasing the imaging channels of the focal plane. At present, multi-band remote sensing cameras at home and abroad mostly increase imaging channels through field-of-view spectroscopic methods. After spectroscopically, the detectors of different focal plane channels belong t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00
CPCH04N17/002
Inventor 常君磊李庆林于生全魏志勇张楠王媛媛杨沐
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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