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Infrared polarization interference imaging spectrometer and manufacturing method

A technology of interference imaging and infrared polarization, applied in polarization spectroscopy, spectrometry/spectrophotometry/monochromator, instruments, etc., which can solve the problems of low efficiency, increased system data acquisition time, and bulky system, etc. To achieve the effect of large amount of information, simple structure and high integration

Active Publication Date: 2018-06-19
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The present invention provides an infrared polarization interference imaging spectrometer in order to solve the problems that the existing infrared polarization imaging spectrometer system is bulky, increases the time of system data acquisition and leads to low efficiency, etc.

Method used

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  • Infrared polarization interference imaging spectrometer and manufacturing method
  • Infrared polarization interference imaging spectrometer and manufacturing method
  • Infrared polarization interference imaging spectrometer and manufacturing method

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specific Embodiment approach 2

[0077] Specific embodiment two, combine Figure 19 This embodiment is described. This embodiment is the manufacturing method of the infrared polarization interference imaging spectrometer described in Embodiment 1. The method of combining visible laser array calibration and infrared camera observation is used for system integration. The specific process is as follows:

[0078] (1) First, a 2×2 visible laser array is used to calibrate the optical axis of the system. The laser array has four laser sources, and the distance between the four laser sources is equal to the center distance between the polarization units of the four-channel polarizer. By adjusting the position and angle of the 2×2 laser array source, the four optical axes of the 2×2 laser array are parallel.

[0079] (2) Insert a 45° visible beam splitting prism in the optical path to divide the laser array into two paths. By adjusting the position and angle of the beam splitting prism, the transmitted laser beam is ...

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Abstract

The invention relates to an infrared polarization interference imaging spectrometer and a manufacturing method, and relates to the technical field of infrared spectrum detection and infrared spectrumanalysis, and solves problems that a conventional time modulation Fourier transformation infrared spectrometer is large in size and heavy because the conventional time modulation Fourier transformation infrared spectrometer employs a high-precision moving mirror drive mechanism, and also solves a problem that a spatial modulation Fourier transformation infrared spectrometer is expensive because the spatial modulation Fourier transformation infrared spectrometer employs a refrigeration-type infrared area array detector. The infrared polarization interference imaging spectrometer consists of a light source, a collimating mirror, a beam splitter, a plane reflector, an array phase reflector, a photoswitch array, a focusing mirror, and a point detector. The infrared polarization interference imaging spectrometer employs the array phase reflector for the distributed phase modulation of an incident light field, and the photoswitch array is used for the amplitude modulation of an emergent interference light field array so as to achieve a distributed-type gating and detection optical spectrum instrument. The infrared polarization interference imaging spectrometer can employ the point detector for detection, thereby further reducing the size and weight, and greatly reducing the cost.

Description

technical field [0001] The present invention relates to an infrared polarization interference imaging spectrometer in the technical field of infrared polarization imaging spectrum measuring instruments, in particular to a method for polarization modulation of a light field by using a four-channel polarizer, a four-channel imaging mirror and a half-step half-plane phase reflector. A four-channel miniature infrared polarization interference imaging spectrometer with array imaging and distributed phase modulation to achieve 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-rel...

Claims

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Application Information

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IPC IPC(8): G01J3/28G01J3/447G01J3/02
CPCG01J3/0205G01J3/0208G01J3/0224G01J3/2823G01J3/447
Inventor 梁中翥陶金梁静秋孟德佳吕金光王维彪秦余欣
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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