Single lens multispectral imaging optical system

A multi-spectral imaging and optical system technology, applied in the field of single-lens multi-spectral imaging optical system, to achieve the effect of convenient operation and superior imaging performance

Inactive Publication Date: 2011-06-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0009] In order to solve the problems existing in the existing multi-spectral imaging optica

Method used

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  • Single lens multispectral imaging optical system
  • Single lens multispectral imaging optical system
  • Single lens multispectral imaging optical system

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Embodiment approach

[0036] As the second embodiment of the present invention: the first beam splitter 4 is plated with ordinary glass, which has the characteristics of anti-infrared, visible light and laser. At this time, the second beam splitter 5 is also plated with ordinary glass correspondingly, and has a reflection Laser, visible light transmission characteristics, and the positions of infrared area array detectors, laser area array detectors and visible light area array detectors are adjusted accordingly figure 2 As shown: the infrared area array detector 9 is located on the focal plane below the first beam splitter 4, the laser area array detector 10 is located on the focal plane above the second beam splitter 5, and the doublet lens 7 is located on the second beam splitter Behind the mirror 5, the visible light area array detector 8 is located on the focal plane of the visible light aberration optical system composed of three chemical vapor deposited zinc sulfide lenses and a combination o...

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Abstract

The invention discloses a single lens multispectral imaging optical system and belongs to the technical field of remote sensing. The system specifically comprises a multispectral apochromatic lens, a first beam splitter, a second beam splitter, a doublet lens, a visible light flat-panel detector, an infrared flat-panel detector and a laser flat-panel detector. The first beam splitter reflects visible light, and transmits infrared and laser; the second beam splitter reflects laser and transmits infrared; and the multispectral apochromatic lens, the first beam splitter and the second beam splitter are made of materials of high transmittance from the visible light to a long-wave infrared band, preferably chemical vapor deposition zinc sulfide. The function of performing multispectral imaging by using a single lens is realized, an image from the visible light to the long-wave infrared band can be obtained, and imaging performance is high; the spectrum coverage range is wide; and the system can be widely applied to the remote sensing of the fields of aerophotography, agriculture and forestry, geology and geography, hydrology and marine, and the like.

Description

Technical field [0001] The invention relates to a single-lens multi-spectral imaging optical system, belonging to the technical field of remote sensing detection. Background technique [0002] The multi-spectral camera uses materials with high transmittance for the imaging wavelength band to make an imaging objective lens, which forms an optical system with filters, beam splitters, etc., and divides the radiation and reflected beams of the same scene into several wavelength bands according to different wavelengths. Record them at the same time to get a set of images of the same scene in different spectral ranges. [0003] Multi-spectral cameras are mostly used in aerial photography. They are an important research method in agriculture, forestry, geography, hydrology, and oceanography. They are also an important method of military reconnaissance and an extremely important remote sensing technology. The multi-spectral imaging optical system is an important part of the multi-spectral...

Claims

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Application Information

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IPC IPC(8): G02B27/10G02B27/00G02B1/00G02B1/10G01J3/02
Inventor 王茜蒨彭中林幼娜
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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