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Chinese Academy of Sciences Institutional Repositories Grid
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Stability research of fore-Telescope system with mechanical passive athermalization design 会议论文  OAI收割
Virtual, Online, China, 2022-12-18
作者:  
Sun, Jian;  Wang, Wei;  Hu, Bing-Liang;  Li, Si-Yuan;  Zou, Chun-Bo
  |  收藏  |  浏览/下载:21/0  |  提交时间:2023/03/13
Design of large relative aperture infrared athermalized optical system with chalcogenide glasses 期刊论文  OAI收割
Guangxue Xuebao/Acta Optica Sinica, 2015, 卷号: 35, 期号: 6
作者:  
Shi, H.;  X. Zhang;  H. Qu;  J. Zhang and H. Jiang
收藏  |  浏览/下载:15/0  |  提交时间:2016/08/24
Thermal difference analysis and athermalization design of infrared optical system (EI CONFERENCE) 会议论文  OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
When infrared optical system works in a large temperature range  the thermal effect of optical lens and optical tube will produce image plane shift and lead to imaging quality deterioration. In order to eliminate the thermal aberration  the athermalization design principles of infrared optical system were introduced  and some commonly used methods of thermal difference compensation were described. Proceeding from single lens  the thermal difference caused by temperature changing was analyzed  and the relationship between temperature and focus shift was obtained. Considering optical tube thermal expansion  a set of equations to estimate the thermal difference of lens group was given. Finally  an infrared optical imaging system that can work under the temperature range of -40C to 60C was design according to athermal technique  in which a new mechanical passive temperature compensation was proposed. Through simulation  the athermalization design could make imaging plane shift the smallest. The simulation results coincided with the theoretical formula  and the design had reference value in engineering. 2010 Copyright SPIE - The International Society for Optical Engineering.