High-precision measurement of focal length for long-focus infrared optical system

Huang Yang; Wang Chunyu; Niu Jinchuan; Wang Cong; Zhang Shengjie; Zong Xiaoying

doi:10.5768/JAO201738.0606002

Journal of Applied Optics > 2017 > 38(6): 995-998. > DOI: 10.5768/JAO201738.0606002

Huang Yang, Wang Chunyu, Niu Jinchuan, Wang Cong, Zhang Shengjie, Zong Xiaoying. High-precision measurement of focal length for long-focus infrared optical system[J]. Journal of Applied Optics, 2017, 38(6): 995-998. DOI: 10.5768/JAO201738.0606002

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High-precision measurement of focal length for long-focus infrared optical system

Beijing Institute of Space Mechanics & Electricity, Beijing 100094, China

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Received Date: July 26, 2017
Revised Date: August 21, 2017

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Abstract

Abstract

In order to improve the accuracy of focal length measurement for long-focus focal infrared optical system, a new method is proposed, that includes interferometry, photoelectric auto-collimation, and laser tracking technique. Based on the wavefront interferometry optical path, it can be realized that the focal length for long-focus infrared optical system is measured with high accuracy, by using the features that the power of wavefront is very sensitive to the position of spherical mirror, and combining with the high-precision position measurement function by laser tracker and the high-precision angle measurement function by photoelectric autocollimator.A long-focus infrared optical system for aerial reconnaissance was tested in the experiment, whose theoretical focal length was 1 520 mm, and the testing error was analyzed according to the accuracy of the equipments. The standard deviation of 5 measurments results was 0.930 mm, and the measurement error was less than 0.2%, meeting the test technical requirements. The experimental result shows that the method is successful and effective to measure the focal length of long-focus infrared optical system accurately.
- focal length measurement,
- high precision,
- interferometry,
- laser tracking technique,
- photoelectric auto-collimation

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[1]	岳涛, 李博, 陈晓丽, 等.空间光学发展现状和未来发展[J].航天返回与遥感, 2011, 32 (5): 1-9. doi: 10.3969/j.issn.1009-8518.2011.05.003 Yue Tao, Li Bo, Chen Xiaoli, et al. The current and future development of space optics[J].Spacecraft Recovery & Remote Sensing, 2011, 32(5): 1-9. doi: 10.3969/j.issn.1009-8518.2011.05.003
[2]	杨建宇, 林家明, 余俊, 等.基于数字图像处理方法的焦距测量技术研究[J].光学技术, 2007, 33 (5): 796-798. doi: 10.3321/j.issn:1002-1582.2007.05.017 Yang Jianyu, Lin Jiaming, Yu Jun, et al. Research on focal length measurement based on digital image processing[J].Optical Technique, 2007, 33 (5): 796-798. doi: 10.3321/j.issn:1002-1582.2007.05.017
[3]	赵康.利用泰伯-莫尔法的透镜长焦距测量[D].成都: 四川大学, 2005: 1-4. Zhao Kang. Measurement of long focal length of lens utilizing Talbot effect and Morie technique[D]. Chengdu: Sichuan University, 2005: 1-4.
[4]	吴玲玲, 王星, 陈靖, 等.基于Talbot-Moiré法的长焦透镜焦距测量的极限精度分析[J].应用光学, 2011, 32 (4): 693-697. doi: 10.3969/j.issn.1002-2082.2011.04.020 Wu Lingling, Wang Xing, Chen Jing, et al. Limit precision analysis of focal length measurement of lens based on Talbot-Moiré[J]. Journal of Applied Optics, 2011, 32 (4): 693-697. doi: 10.3969/j.issn.1002-2082.2011.04.020
[5]	王生云, 郑雪, 杨红, 等.红外光学系统焦距测量装置校准规范说明[J].应用光学, 2007, 28 (6): 806-808. doi: 10.3969/j.issn.1002-2082.2007.06.030 Wang Shengyun, Zheng Xue, Yang Hong, et al. Explanation of calibration specification for IR optical focal length measuring equipment[J]. Journal of Applied Optics, 2007, 28 (6): 806-808. doi: 10.3969/j.issn.1002-2082.2007.06.030
[6]	姚震, 吴易明, 高立民, 等.长焦距红外光学系统焦距检测方法[J].红外与激光工程, 2014, 43 (6): 1950-1954. doi: 10.3969/j.issn.1007-2276.2014.06.045 Yao Zhen, Wu Yiming, Gao Limin, et al. Method of focal length measurement for infrared optical system with long focal length[J]. Infrared and Laser Engineering, 2014, 43 (6): 1950-1954. doi: 10.3969/j.issn.1007-2276.2014.06.045
[7]	陈磊, 高志山, 何勇.红外光学透镜焦距测量[J].光子学报, 2004, 33 (8): 986-988. http://d.old.wanfangdata.com.cn/Periodical/gzxb200408024 Chen Lei, Gao Zhishan, He Yong. Focal length measurement of infrared lenses[J]. Acta Photonica Sinca, 2004, 33 (8): 986-988. http://d.old.wanfangdata.com.cn/Periodical/gzxb200408024
[8]	杨振刚, 陈海清.红外光学系统焦距测量的研究[J].光学与光电技术, 2011, 9 (6): 33-35. doi: 10.3969/j.issn.1672-3392.2011.06.007 Yang Zhengang, Chen Haiqing. Infrared optic systems focus measurement[J]. Optics& Optoelectronic Technology, 2011, 9 (6): 33-35. doi: 10.3969/j.issn.1672-3392.2011.06.007
[9]	黄阳, 王春雨, 李晓轩.离轴二次非球面反射镜几何参数的高精度测量[J].光学与光电技术, 2016, 14 (1): 56-59. http://d.old.wanfangdata.com.cn/Periodical/gxygdjs201601012 Huang Yang, Wang Chunyu, Li Xiaoxuan. High-precision measurement of the geometrical paramenters of conic off-axis aspheric mirrors[J]. Optics & Optoelectronic Technology, 2016, 14(1): 56-59. http://d.old.wanfangdata.com.cn/Periodical/gxygdjs201601012
[10]	瞿伟, 刘卫林, 刘银辉.长焦距变焦镜头的温度分析及补偿[J].应用光学, 2015, 36 (5): 717-722. http://d.old.wanfangdata.com.cn/Periodical/yygx201505009 Qu Wei, Liu Weilin, Liu Yinhui. Thermal analysis and compensation of long zoom lens[J]. Journal of Applied Optics, 2015, 36 (5): 717-722. http://d.old.wanfangdata.com.cn/Periodical/yygx201505009

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High-precision measurement of focal length for long-focus infrared optical system