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17 September 2018 Design and fabrication of thin-film coatings for advanced radiation imager onboard new-generation geostationary meteorological satellite (Conference Presentation)
Weibo Duan, Daqi LI, Baojian Liu, Deming Yu, Dingquan Liu
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Proceedings Volume 10742, Optical Manufacturing and Testing XII; 107420B (2018) https://doi.org/10.1117/12.2320446
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States
Abstract
China has started to develop its geostationary meteorological satellites and associated ground application systems since the 1980s. In the past 20 years, 6 FY-2 satellites were launched and put into application. About 10 years ago, China had planned to develop a new generation geostationary satellite, and the first one, named FY-4A, was launched on December 11, 2016. The Advanced Radiation Imager, one of the observing instruments onboard FY-4A meteorological satellite, has 14 optical channels with the spectral range cover from 0.45µm to 13.8µm. Five kinds of optical coating components, including high reflectance mirrors, dichroic beam splitters, lens, optical windows and bandpass filters, are used to construct the complex optical system. Metal and dielectric thin film materials are selected to design and fabricate these optical coatings. The spectrum measurement, reliability tests and simulated space environment tests are carried out, respectively. The images received by ground station indicate that optical coatings are competent to the application of Advanced Radiation Imager.
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Weibo Duan, Daqi LI, Baojian Liu, Deming Yu, and Dingquan Liu "Design and fabrication of thin-film coatings for advanced radiation imager onboard new-generation geostationary meteorological satellite (Conference Presentation)", Proc. SPIE 10742, Optical Manufacturing and Testing XII, 107420B (17 September 2018); https://doi.org/10.1117/12.2320446
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KEYWORDS
Imaging systems
Meteorological satellites
Thin film coatings
Optical coatings
Satellites
Beam splitters
Channel projecting optics
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