Mini infrared imaging spectrometer and imaging method thereof

• Main Authors: WANG CHENSHENG, ZHANG ZHIJIE, YU HUI, LIU XINGCHAO, ZHAO KUN, LEI BEI
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2016
• Subjects: COLORIMETRY; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

The invention discloses a mini infrared imaging spectrometer which comprises a slit scanning infrared spectral imaging system and an electrical assembly. The slit scanning infrared spectral imaging system comprises a prepositioned optical system, a slit, a spectral dispersion system, a digital microlens array and a spectrum reconstruction system. The electrical assembly comprises an infrared detector, a microlens coding and decoding system, a slit motion control system and an image processing system. An imaging method of the spectrometer is also disclosed. According to the invention, the compact prepositioned optical system realizes focusing of infrared radiation energy of an object scene; an accurate slit scanning technology is used to scan the view field of each line of the scene, so that imaging is carried out via one narrowband in the scene each time; a spectral scattering system, the digital microlens array, the spectrum reconstruction system and the infrared detector are used to realize spectral imaging