Optical design of laser receiving and color TV confocal-window
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摘要: 介绍了激光接收和彩色电视共窗口的多波段光谱融合技术.采用一个焦距为20~450 mm的连续变焦距镜头(视场角在13.6810.26~0.610.46内连续变化),在会聚光或平行光的条件下,采用立方棱镜或平板玻璃分光,分别进行了对比试验.结果显示,使用会聚光下的立方棱镜分光,在大视场13.6810.26的情况下,光线入射角最大,色偏移严重,图像颜色严重失真.随着视场角的减小,光线入射角减小,图像颜色失真程度逐渐减小,越接近小视场0.610.46,图像颜色失真现象基本消失;而使用平板玻璃对平行光分光的条件下分光,连续变焦距镜头在整个视场范围内,不仅光学像差满足要求,同时解决了棱镜分光的色偏移问题,图像颜色正常,在空间尺寸苛刻的情况下,彩色电视光学系统MTF在108 lp/mm时达到了0.3,设计结果满足工程应用要求.Abstract: This paper introduces the multi-band spectral fusion technology of laser receiving and color TV confocal-window. A continuous zoom lens with focal length of 20-450 mm and angel of vision from 13.6810.26~0.610.46 is adopted. Under the condition of concentrated or parallel light, the contrast tests are implemented respectively using cubic prism or flat glass to separate light. Results show that when using cubic prism under concentrated light in the big angel of vision of 13.6810.26, with the biggest light incident angle, serious color deviation and image color distortion occur. With the decrease of angel of vision and light incident angle, the degree of image color distortion declines, and almost disappears when getting closed to the small angel of view of 0.610.46 gradually. However, under the condition of using flat glass and parallel light to separate light, continuous zoom lens can not only meet the requirement of optical aberration in the whole range field of view, but also solve the color deviation problem occurred in cubic prism, which shows a regular image color. Under the restrict limitation of room size, the MTF of color TV optical system reaches 0.3 at 108 lp/mm and the design result meets the requirement of engineering application.
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Key words:
- spectroscope /
- multi-band spectrum /
- confocal-window fusion /
- color deviation /
- image deviation
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[1] 晏雷,贾平,洪永丰,等. 变焦距镜头凸轮曲线形式的选择[J]. 应用光学,2010,31(6):876-882. YAN L,JIA P,HONG Y F,et al.. Selection of cam curve for zoom lens[J]. J. Applied Optics,2010,31(6):876-882.(in Chinese)
[2] 陆强,李轶群,沈为民. 大相对孔径连续变焦前置物镜的光学设计[J]. 光学学报,2010,30(9):2674-2679. LU Q,JI Y Q,SHEN W M. Design of a fore continual zoom system with high speed[J]. Acta Optics Sinica,2010,30(9):2674-2679.(in Chinese)
[3] 李晓彤,何国雄. 变焦距系统高斯解优化的研究[J]. 浙江大学学报,1993,27(1):122-127. LI X T,HE G X. Research of optimization design for zoom lens Gaussian parameters[J]. J Zhejiang University,1993,27(1):122-127.(in Chinese)
[4] 蔡伟,张新,冯秀恒,等. 变焦距系统的变倍补偿方式[J]. 光学精密工程, 2011,19(9):2063-2071. CAI W,ZHANG X,FENG X H,et al.. Compensating modes for zoom system[J]. Opt.d Precision Eng.,2011,19(9):2063-2071.(in Chinese)
[5] 李宏壮,张振铎,曹景太. 长焦距超高倍率变焦距光学系统设计[J]. 光子学报,2012,41(3):358-363. LI H ZH,ZHANG ZH D,CAO J T. Design of zoom optical system with long focal length and super-high zoom ratio[J]. Acta Photonica Sinica,2012,41(3):358-363.(in Chinese)
[6] 胡际先. 长焦距大口径连续变焦光学系统的设计[J]. 应用光学,2007,28(5):569-572. HU J X. Design of long focal length large-aperture optical zoom system[J]. J Applied Optics,2007,28(5):569-572.(in Chinese)
[7] 王平,张葆,程志峰,等. 变焦距镜头凸轮结构优化设计[J]. 光学精密工程,2010,18(4):893-898. WANG P,ZHANG B,CHENG ZH F,et al.. Optimal design of zoom lens[J]. Opt. Precision Eng.,2010,18(4):893-898.(in Chinese)
[8] 王红,田铁印. 5倍变焦距光学系统小型化设计[J]. 中国光学,2014,2(7),315-319. WANG H,TIAN T Y. Miniature design of 5× zoom optical system[J]. Chinese Optics,2014,2(7):315-319.(in Chinese)
[9] 苗健宇,张立平,翟岩,等. 小型连续变焦相机的结构实现[J]. 中国光学,2014,1(7):169-174. MIAO J Y,ZHANG L P,ZHAI Y. Structural realization of small zoom camera[J]. Chinese Optics,2014,1(7):169-174.(in Chinese)
[10] 李刚,杨晓许,张恒金,等. 基于卡塞格林系统的红外制冷型长焦分档变倍光学系统的设计[J]. 中国光学,2014,7(2):293-300. LI G,YANG X X,ZHANG H J,et al.. Design of cooled infrared switch-zoom optical system with long effective focal length based on R-C system[J]. Chinese Optics,2014,2(7):293-300.(in Chinese)
[11] 刘峰,徐熙平,孙向阳. 高变倍比红外变焦距光学系统设计[J]. 应用光学,2009,30(6):1020-1023. LIU F,XU X P,SUN X Y. Design of high zoom ratio thermal infrared zoom optical system[J]. J Applied Optics,2009,30(6):1020-1023.(in Chinese)
[12] 岳兆阳,张蕊,白少先,等. 共光路双频外差干涉法测量模拟磁头磁盘静态间隙[J]. 中国激光,2005,32(12):1664-1667. YUE ZH Y,ZHANG R,BAI SH X,et al.. Measurement of simulated disk/slider stationary spacing by common-path dual-frequency interferometry[J]. Chinese J. Laser,2005,32(12):1664-1667.(in Chinese)
[13] LIN Y,SCHILL J,WANG R W. Precision evaluation of a common-path interferometer in measurement of optical surfaces[J]. CCTA Optical Sinica,1994,14(1):55-61.(in Chinese)
[14] 韩旭东,艾华. 共光路移相单频激光干涉测长系统[J]. 光学技术,2004,30(2):195-198. HAN X D,AI H. Common-path and phase-shif ting single frequency laser interferometer for length measurement [J]. Optical Technique,2004,30(2):195-198.(in Chinese)
[15] 孙燕萍,高军. 棱镜成像光谱仪色散特性研究[J]. 航天返回与遥感, 1999,20(4):23-26,45. SUN Y P,GAO J. Prism dispersion characteristic imaging spectrometer research[J]. Space Return and Remote Sensing,1999,20(4):23-26,45.(in Chinese)
[16] 楼永坚,曹向群. 分光棱镜的分光性能测试研究[J]. 光学仪器,2002,24(6):7-10. LOU Y J,CAO X Q. Dispersion prism spectral performance test research[J]. Optical Instruments,2002,24(6):7-10. (in Chinese)
[17] 于雪芹. 棱镜色散与光栅色散的对比分析[J]. 三门峡职业技术学院学报,2011,10(6):116-117. YU X Q. With the comparison and analysis of the grating dispersion prism dispersion[J]. J. Sanmenxia Vocational and Technical College,2011,10(6):116-117.(in Chinese)
[18] 王海涛,耿安兵. 一体化红外双波段成像光学系统[J]. 红外与激光工程, 2008,37(3):489-492. WANG H T,GANG A B. Unified infrared imaging optical system of dual spectral[J]. Infrared and Laser Engineering,2008,37(3):489~492.(in Chinese)
[19] 张兴德,李荣刚,刘琳,等. 红外双波段成像系统的研究与发展[J]. 激光与红外,2010,409(8):801-804. ZHANG X D,LI R G,LIU L,et al.. Research and development of dual-band infrared camera system[J]. Laser Infrared,2010,40(8):801~804.(in Chinese)
[20] 林青,金伟其,郭宏,等. 可见光/长波红外共聚焦窗口望远物镜设计[J]. 光学学报,2012,32(9):1-5. LIN Q,JIN W Q,GUO H,et al..Cofocal-window telescope objective design in visible and long-wave infrared [J]. Acta Optical Sinica,2012,32(9):1-5.(in Chinese)
[21] 张静,刘敬海. 多光路共窗口的现代光电跟踪系统 [J]. 光学技术,2001,27(4):3506-3510. ZHANG J,LIU J H. Modern optic-electric tracker with multichannel and co-window[J]. Optical Technique,2001,27(4):3506-3510.(in Chinese) -
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