An indoor calibration light source of the transmissometers based on spatial light modulation
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1. School of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China;2. Opto-Electronic Measurement and Control Instrumentation, Jilin Province Engineering Research Center, Changchun 130022, China;3. Key Laboratory of Opto-Electronic Measurement and Optical Information Transmission Technology, Ministry of Education, Changchun 130022, China;4. Meteorological Observation Center, China Meteorological Administration, Beijing 100081, China

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    Abstract:

    Turner spectroscopic system which achieved a spectral resolution of less than 1 nm in the range from 380 nm to 780 nm. Then, the calibration light source’s spectrum matching model is established and the digital micromirror device (DMD)’s surface illuminance distribution law is simulated and analyzed. Finally, the MOR error of the calibrated light source is inverted. The results show that the simulation spectrum error of the 2 700 K absolute color temperature is below ±7.4% in the wavelength range from 380 nm to 780 nm, and the MOR error meets the requirements of the International Civil Aviation Organization in 40—2 000 m of MOR.

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    [1] World Meteorological Organization. Guide to meteorological instruments and methods of observation[R].
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LIANG Jing, ZHANG Guoyu, ZHANG Jian, XU Da, CHONG Wei, SUN Jiliang. An indoor calibration light source of the transmissometers based on spatial light modulation[J]. Optoelectronics Letters,2022,18(2):65-71

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History
  • Received:July 08,2021
  • Revised:September 30,2021
  • Online: February 23,2022
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