Fan Zheyuan, Gao Limin, Zhang Zhi, Chen Weining, Yang Hongtao, Zhang jian, Wu Li, Cao Jianzhong. Design of three-field middle-wave infrared zoom system[J]. Infrared and Laser Engineering, 2014, 43(2): 523-527.
| Citation:
|
Fan Zheyuan, Gao Limin, Zhang Zhi, Chen Weining, Yang Hongtao, Zhang jian, Wu Li, Cao Jianzhong. Design of three-field middle-wave infrared zoom system[J]. Infrared and Laser Engineering, 2014, 43(2): 523-527.
|
Design of three-field middle-wave infrared zoom system
- 1.
Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Science,Xi'an 710119,China;
- 2.
University of Chinese Academy of Sciences,Beijing 100049,China
- Received Date: 2013-06-14
- Rev Recd Date:
2013-07-19
- Publish Date:
2014-02-25
-
Abstract
Three-field zoom system has advantages of simple mechanical structure, better reliability, short time of changing focal relative to other pattern zoom systems. Using 320240 resolution cooled detector with 30 m30 m pixel dimension, a middle-wave three-field optical system was designed by secondary imaging way. The system's F number is 4, FOV range is 1.4-23.8, it can realize 30 mm/100 mm/500 mm three position focal length. In designing process, the Germanium material and Silicon material were adopted to balance chromatic aberration, introducing one asphere to balance sphere aberration. The system use two mirrors reducing the axis dimension. The dimension of system better than 210 mm160 mm120 mm, it has characteristics of small dimension, simple zoom structure, good image quality etc. The modulation transfer function(MTF) is above 0.5 at spatial frequency of 17 lp/mm and energy concentration ratio is greater than 70% within the sensing element of the detector.
-
References
|
[1]
|
Zhang Mingyi, Li Baoping, Wang Zhongnan, et al. Design of the switch-zoom dual-field-of-view infrared optical system with hybrid refractive-diffractive[J]. Infrared and Laser Engineering, 2008, 37(5): 850-853. (in Chinese) |
|
[2]
|
|
|
[3]
|
|
|
[4]
|
Chen Lvji, Chen Jinjin, Li Ping. A novel stop-zoom LW infrared dual field-of-view optical system design[J]. Infrared Technology, 2011, 33(7): 406-410. (in Chinese) |
|
[5]
|
Zhao Xinliang, Wang Haixia, Cui Li, et al. Design of dual-field scanning LWIR optical system[J]. Infrared and Laser Engineering, 2011, 40(8): 1517-1520. (in Chinese) |
|
[6]
|
|
|
[7]
|
|
|
[8]
|
Dong Keyan, Sun Qiang, Li Yongda, et al. Design of a refractive/diffractive hybrid infrared bifocal optical system[J]. Acta Physica Sinica, 2006, 55(9): 4602-4606. (in Chinese) |
|
[9]
|
Luo Shoujun, He Wubin, Li Wenhu, et al. Design of middle infrared continuous zoom optical system with a large FPA[J]. Optics and Precision Engineering, 2012, 20(10): 2117-2122. (in Chinese) |
|
[10]
|
|
|
[11]
|
Zhou Hao, Liu Ying, Sun Qiang. Mid-infrared zoom optical system with ratio of 25[J]. Acta Optica Sinica, 2012, 32(4): 0422001-1-0422005. (in Chinese) |
|
[12]
|
|
|
[13]
|
|
|
[14]
|
Tao Chunkan. Zoom Lens Design[M]. Beijing: Beijing National Defense Industry Press, 1988: 33-39, 140-153. (in Chinese) |
|
[15]
|
Fan Zheyuan, Yang Hongtao, Qu Enshi, et al. Design of long-wave infrared scan system with large field and large aperture[J]. Infrared and Laser Engineering, 2012, 41(10): 2740-2744. (in Chinese) |
-
-
Proportional views
-
DownLoad: