Infrared dual band athermal optical system with common aperture

被引：5
|
作者：
Bai Y. [1 ,2 ,3 ]
Liao Z.-Y. [1 ]
Liao S. [1 ]
Ren Q.-F. [1 ]
Chen W. [1 ]
Lin W.-M. [1 ]
Xing T.-W. [1 ]
Jiang Y.-D. [2 ]
机构：
[1] Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu
[2] School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu
[3] University of Chinese Academy of Sciences, Beijing
来源：
Bai, Yu (baiyu91258@163.com) | 1600年 / Chinese Academy of Sciences卷 / 24期
关键词：
Common aperture; Dual band imaging system; Infrared optical system; Optical design;
D O I：
10.3788/OPE.20162402.0268
中图分类号：
学科分类号：
摘要：
A set of common aperture athermal catadioptric optical system with infrared dual bands is presented for 320×256 MWIR and LWIR staring focal plane array detectors. The system works at the wavelength of 3.7-4.8 μm, 7.7-11.7 μm, and the environment temperature of 10-40℃.Its working parameters are the effective focal length of 292 mm, field of view of 1.56°×1.875°, F/# of 1.93 and the cold shield efficiency of 100%.The LWIR system shares the primary mirror, secondary mirror and collimating lens with the MWIR system. The beam splitting of the MWIR and LWIR is achieved by a spectroscope and their aberrations are eliminated by correcting lenses respectively. The design principle, design process and some considering factors in engineering design moment are presented. By choosing appropriate optical materials, mechanical materials and assigning the optical power, the common aperture athermal catadioptric optical system obtains good image quality during 10℃ to 40℃. It shows good imaging quality, good machining ability, easy to be assemble, and suitable for engineering applications. © 2016, Science Press. All right reserved.
引用
收藏
页码：268 / 277
页数：9
相关论文
共 17 条
  • [1] Luo S.J., Xia Y.H., Yang N.N., Et al., Long-wavelength infrared continuous zoom scanning optical system, Chinese Optics, 8, 1, pp. 107-113, (2015)
  • [2] Zhang B., Cui E.K., Hong Y.F., Infrared MWIR/LWIR dual-fov commom-path optical system, Opt. Precision Eng., 23, 2, pp. 395-402, (2015)
  • [3] Fu Q., Zhang X., Materials choose for mid-wave/long-wave dual-waveband infrared optics, Acta Optica Sinica, 35, 2, (2015)
  • [4] Zhang X.T., An Z.Y., Design of infrared athermal optical system for dual-band with double-layer harmonic diffraction element, Acta Optica Sinica, 33, 6, (2013)
  • [5] Nevo Y., Dual-band optics, Optical Engineering, 52, 5, (2013)
  • [6] Vizgaitis J., Third generation infrared optics, 6940, (2008)
  • [7] Schreer O., Dual-band camera system with a dvanced image processing capability, 6542, (2007)
  • [8] Vizgaitis J., Dual f-number optics for third generation FLIR systems, 5783, pp. 875-885, (2005)
  • [9] Jiang H., Qian Y., High speed dual spectral infrared imaing, Optical Engineering, 32, 6, pp. 1281-1283, (1993)
  • [10] Wang H.T., Geng A.B., Unified infrared imaing optical system of dual spectral, Infrared and Laser Engineering, 37, 3, pp. 489-493, (2008)
12