光子学报, 2009, 38 (1): 115, 网络出版: 2010-05-10
复消色差的短波红外望远物镜设计
Apochromatized Design of Teleobjective in Short Wave Infrared Band
短波红外 透镜设计 色差校正 复消色差 望远物镜 SWIR Lens Design Chromatic aberration correct Apochromatize Telephoto objective
摘要
分析计算了一些普通光学玻璃及晶体光学材料在0.9~2.5 μm短波红外段的色散特性.在远距型的物镜结构后组中采用的厚弯月镜能产生一定量的反向色差补偿前组中的二级光谱，所设计的物镜在焦距800 mm时的带孔径处最大色差0.13 mm.结果表明,采用氟化物玻璃与重火石玻璃的三片式组合在短波红外段具有较好的消色差能力.
Abstract
Dispersions of some conventional optical glasses and some crystal materials were analyzed in 0.9~2.5μm bands.In the telephoto objective configuration,rear group introduced a thick meniscus element to produce the reversed color aberration to compensate secondary spectrum that remained by front group.Zonal chromatic aberration of the objective is 0.13 mm at focal length 800 mm,and the triplet combination of the fluorite glasses and some heavy flint type glass is effective to correct color aberrations.
白清兰. 复消色差的短波红外望远物镜设计[J]. 光子学报, 2009, 38(1): 115. BAI Qing-lan. Apochromatized Design of Teleobjective in Short Wave Infrared Band[J]. ACTA PHOTONICA SINICA, 2009, 38(1): 115.
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