A compact multispectral camera

A multi-spectral and compact technology, applied in the field of aerospace remote sensing, can solve the problems of high requirements for attitude stability, complex beam splitting prisms, and a large number of detectors, and achieve the effect of compact structure, light weight and simple principle.

Active Publication Date: 2017-07-14
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

But when the number of spectral bands increases, the spectroscopic prism is complex and the number of detectors is too large, which is expensive
[0008] The above-mentioned various forms of multispectral cameras are either too large and complex, or contain moving parts, or require too high attitude stability

Method used

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  • A compact multispectral camera
  • A compact multispectral camera
  • A compact multispectral camera

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Embodiment Construction

[0025] Such as figure 1 , 2 As shown, the present invention is made up of imaging objective lens 1, optical filter array 6 and area array detector 7, and wherein imaging objective lens 1 is made up of R-C system 4 and correcting lens group 5, realizes the function to target imaging, optical filter array 6 Located in front of the area array detector 7, it realizes the field of view segmentation of the target spectrum; the area array detector 7 acquires and records digital information through the photoelectric effect; the entire multispectral camera can be regarded as adding a filter to the traditional camera system The array 6 is placed in front of the target of the area array detector 7, such as image 3 As shown, a plurality of filter films of different spectral bands are plated on the filter array 7 along the direction perpendicular to the flight, and 8-13 in the figure correspond to the six colors of visible light, red, green, blue and two near-infrared, respectively. Fil...

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Abstract

The invention relates to a compact type multispectral camera which consists of three parts, namely an imaging objective lens, an optical filter array and an area array detector, wherein the imaging objective lens has the function of imaging a target; the optical filter array is used for separating a view filed for a target spectrum; the area array detector is used for acquiring and recording digital information via a photoelectric effect. The compact type multispectral camera is compact in structure, is light in weight, is reliable in operation, is high in stability, is capable of reducing the requirement of an instrument for stability of the platform posture, and can well meet the aerospace application requirement.

Description

technical field [0001] The invention relates to a compact multispectral camera and belongs to the technical field of aerospace remote sensing. Background technique [0002] With the continuous development of science and technology, aerospace remote sensing technology has been widely used in many fields such as astronomical observation, remote sensing, surveying and mapping, and military reconnaissance. It is gradually becoming one of the most important means for people to obtain various space information, discover and identify targets. The use of space remote sensing instruments mounted on satellites for earth observation has the advantages of fast speed, wide field of vision, large coverage, no air space restrictions, and global coverage. For earth observation satellites, improving the detection capability of targets not only depends on the improvement of spatial resolution, but also depends on the range and number of bands covered by the camera. Obviously, this involves s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/02
CPCG01C11/02
Inventor 方煜吕群波谭政刘扬阳
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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