%0 Journal Article
%T Optical design of infrared continuous-zoom lenses<br>红外中波连续变焦光学系统的设计
%A XUE Hui
%A LI Chang-Wei
%A <br>薛慧
%A 李常伟
%J 红外与毫米波学报
%D 2012
%I Science Press
%X An infrared continuous zoom system is designed. The simple system has a large relative aperture with high transmittance, large continuous zoom ratio, and wide wave band. By introducing a diffractive surface and an aspheric surface, the modulation transfer function (MTF) of the system is above 0.6 for all continuous zoom ratios at the spatial frequency of 14lp/mm. As the system only contains 4 lenses, the transmittance is higher than 80%, and the zoom ratio of the system could also reach 8 continuously. As the color and the off-axis aberration are well corrected, the experiment indicates that the image quality of the continuous zoom system is pretty well.
%K optical design
%K zoom lenses
%K continuous-zoom
%K infrared
%K diffractive optical element
%K athermalization<br>光学设计
%K 变焦系统
%K 连续变焦
%K 红外
%K 衍射光学元件
%K 无热化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=B2D56FC40CE075F1A179C79BD49DBA74&yid=99E9153A83D4CB11&vid=4AD960B5AD2D111A&iid=94C357A881DFC066&sid=65C08888CCE4801E&eid=D1D63D047E37A053&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=0&reference_num=5