Infrared polarization interference imaging spectrometer based on double-cycle stepped phase reflector

A technology of interference imaging and infrared polarization, applied in polarization spectrum, spectrometry/spectrophotometry/monochromator, instrument, etc., to achieve the effect of simple structure, large amount of information, and fast measurement speed

Active Publication Date: 2018-06-15
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the problem of simultaneous acquisition of polarization information, image information and spectral information in the existing target scene and the miniaturization and integration of polarization imaging spectroscopic instruments, the present invention provides an infrared polarization interference imaging spectrometer based on a double-period stepped phase mirror

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  • Infrared polarization interference imaging spectrometer based on double-cycle stepped phase reflector
  • Infrared polarization interference imaging spectrometer based on double-cycle stepped phase reflector
  • Infrared polarization interference imaging spectrometer based on double-cycle stepped phase reflector

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specific Embodiment approach 1

[0024] Specific implementation mode 1. Combination Figure 1 to Figure 15 To illustrate this embodiment, the infrared polarization interference imaging spectrometer based on a double-period stepped phase mirror includes a collimator 1, a four-channel polarizer 2, a four-channel imaging mirror 3, a beam splitter 4, a plane mirror 5, a double-period ladder Phase reflector 6, relay imaging mirror 7 and area array detector 8.

[0025] The collimator 1 collimates the incident light carrying the target image, spectrum and polarization information into parallel light, and the four-channel polarizer 2 divides the parallel light field into four parallel polarization channels according to different polarization states in the transverse space, so that the target The light field is modulated into four different polarization states after passing through the four-channel polarizer 2 . The outgoing light field modulated by the four-channel polarizer 2 can be four linear polarization states ...

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Abstract

Provided is an infrared polarization interference imaging spectrometer based on a double-cycle stepped phase reflector, relating to the technical field of infrared polarization imaging spectral measurement instruments, and solving the problem of the simultaneous acquisition of the polarization information, the image information, and the spectral information in the existing target scene, and the micro-miniaturization and integration of a polarization imaging spectral instrument. The infrared polarization interference imaging spectrometer includes a collimating mirror, a four-channel polarizer,a four-channel imaging mirror, a beam splitter, a plane reflector, a double-cycle step phase reflector, a relay imaging mirror and an area array detector. The optical field coupling between the four-channel polarizer and the four-channel imaging mirror, and the double-cycle stepped phase reflector realizes the modulation of image field polarization and interference, so that a four-channel polarization interference image of the target scene is obtained, the polarization, the image and the spectral information of the target scene can be obtained through one-time scanning, and the imaging spectrometer is small in size, light in weight, simple in structure, high in integration level, high in measurement speed, and multiple in information quantity.

Description

technical field [0001] The present invention relates to the technical field of infrared polarization imaging spectrum measuring instruments, and relates to an infrared polarization imaging spectrum instrument, in particular to a method for polarizing a light field by using a four-channel polarizer, a four-channel imaging mirror and a double-period stepped phase reflector. Modulation, array imaging and distributed phase modulation to realize the miniature infrared polarization interference imaging spectrometer for polarization image field interference. Background technique [0002] Image features, spectral features, and polarization features are important means for people to identify substances. Effective detection of target image, spectral, and polarization features greatly improves people's ability to understand the world. Image feature detection is used to record the position and intensity information of objects. Spectral feature detection can obtain wavelength-related inf...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J3/453G01J3/447G01J3/02G02B27/28
CPCG01J3/0205G01J3/0256G01J3/447G01J3/453G02B27/286
Inventor 梁中翥梁静秋吕金光陶金孟德佳王维彪秦余欣
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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