摘要
论述了利用衍射光学元件的环境温度特性实现光学系统消热差的原理和设计方法 ,给出了 8～ 12μm波段内、焦距 12 3mm、相对口径 1/ 2 .5在 2 0～ 5 0℃温度范围内实现消热差和消色差的折衍混合红外光学系统的设计和评价结果 ;叙述了用 NANOFORM2 5 0型金刚石微表面发生器在 Ge单晶平面基体上加工衍射元件的主要过程和测试结果 ;最后给出了在不同温度下用英国
The principle and design method of employing diffractive optical element to athermalize and achromatize an optical system are expounded.The optical prescription and evaluation of an athermalized and achromatized 123 mm,1/2.5 infrared optical system in temperature range 20～50 ℃ and 8～12 μm waveband are given.Additionally,the main fabrication process of a rotationally symmetric kinoforms on planar Ge substrate by single point diamond turning utilizing NANOFORM 250 micro surface generator lathe is described.In the end,the measurement results of the system performance by Ealing infrared MTF setup at different temperatures are given.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2001年第12期1226-1229,共4页
Journal of Optoelectronics·Laser
关键词
消热差
红外光学系统
衍射光学
消色差
athermalisation
infrared optical system
diffractive optics
