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Snapshot-type multispectral image multiple-splitting spectral imaging method and spectral imager

A spectroscopic imager and spectroscopic technology, applied in the field of spectral imaging, can solve the problems of complex processing technology, complex principle, difficult control of instrument volume and weight, etc., and achieve the effect of high luminous flux, simple processing technology and easy control.

Inactive Publication Date: 2015-12-16
ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

However, due to the need for follow-up inversion algorithms, real-time spectral measurement of dynamic targets cannot be achieved; at the same time, its principle is complicated and the processing technology is complicated, so the volume, weight, etc. of the instrument are not easy to control

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  • Snapshot-type multispectral image multiple-splitting spectral imaging method and spectral imager
  • Snapshot-type multispectral image multiple-splitting spectral imaging method and spectral imager
  • Snapshot-type multispectral image multiple-splitting spectral imaging method and spectral imager

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Embodiment Construction

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] figure 1 A schematic structural diagram of a snapshot multi-spectral spectral imager provided by an embodiment of the present invention. Such as figure 1 As shown, it mainly includes: an objective lens, a collimating mirror, a beam splitting structure, an imaging mirror, a filter array and a detector arranged in sequence and parallel to each other; wherein: the beam splitting structure is a beam splitting structure based on a Wollaston pris...

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Abstract

The invention discloses a snapshot-type multispectral image multiple-splitting spectral imaging method and a spectral imager. The related spectral imager comprises an objective lens, a collimating mirror, a light-splitting structure, an imaging lens, a filter plate array and a detector, which are mutually parallel and are arranged in sequence. The light-splitting structure is the light-splitting structure based on Wollaston prisms, and comprises a polarizer, four wave plates and four Wollaston prisms, which are arranged in parallel, wherein the four wave plates and four Wollaston prisms are arranged alternatively. According to the snapshot-type multispectral spectral imager, output images thereof can be used directly without follow-up data processing work; and meanwhile, the imager is simple in imaging principle, easy to process and low in cost, and meets requirement for miniature design.

Description

technical field [0001] The invention relates to the technical field of spectral imaging, in particular to a snapshot multispectral spectral imager. Background technique [0002] The spectral imager can obtain the two-dimensional spatial information (x, y) and one-dimensional spectral information (λ) of the detection target at the same time, and construct the three-dimensional data cube of the target. There are generally three methods for obtaining data cubes: time scanning, space scanning, and snapshot (Snap-shot), and the first two can be collectively referred to as scanning methods. The time-scanning spectrometer needs to set different band-pass filters in different time periods to obtain the information of each spectrum in the spectrum to be measured, but the band-pass filter has a bandwidth limit, so there is an error when reconstructing the image; the space-scanning type The spectrometer needs to move in space or the spectrometer itself has moving parts, which is easy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/28
Inventor 马培培刘扬阳吕群波裴琳琳方煜
Owner ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
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