Static spectrum polarization imaging device

Abstract

The invention relates to a static spectrum polarization imaging device, which comprises an optical-mechanical system and a control unit, wherein the optical-mechanical system comprises a front imaging system and a detector, and the control unit comprises a display; and the static spectrum polarization imaging device is characterized in that the optical-mechanical system also comprises a relay imaging optical system, a liquid crystal variable retarder (LCVR) in a polarization modulation system and a liquid crystal tunable filter (LCTF) in a beam splitting system which are sequentially arranged between the front imaging system and the detector. According to the static spectrum polarization imaging device, by adoption of the LCTF and LCVR, the polarization state and penetrating wavelengths are electrically tuned, so that full-static spectrum polarization imaging is realized, any mechanical motion part is not required, the power consumption is reduced, the volume is reduced, and possibility is provided for realizing a portable spectrum polarization imaging device. The static spectrum polarization imaging device has a wide application prospect in the fields of environmental monitoring, atmospheric sounding, soil humidity analysis, plant classification, military application and the like.

Description

technical field [0001] The invention belongs to the technical field of imaging instruments, in particular to a static spectrum polarization imager. Background technique [0002] At present, various optical information acquisition technologies have been researched, such as imaging technology, spectral technology, polarization technology, etc., and various information of the target can be obtained by using these technologies. For example, imaging technology can be used to obtain spatial information, spectral technology can be used to obtain spectral information, and polarization technology can be used to obtain polarization state information. Moreover, with the rapid development of optical technology, the indicators of optical information acquisition technology have been continuously improved, the functions have been continuously improved, and the amount of information acquired has continued to increase. At the same time, there is also the fusion of different optical informat...

AI Technical Summary

Problems solved by technology

[0006] It is precisely because of the existing LCTF spectral polarization imager that mechanically rotates the LCTF to obtain spectral images of different linear polarization directions, thus adding mechanical moving parts such as stepping motors, which increases the complexity and stability of the instrument and reduced reliability

Moreover, in some static spectral polarization imagers, only a limited number of spectral images of linear polarization directions can be obtained

Images