宽光谱共焦复消色差物镜光学系统设计  

Optical System Design of Wide-Spectrum Achromatic Confocal Objective Lens

作　　者：葛琳琳 王世先 张瑞 闫学纯 杨亚林 GE Lin-lin;WANG Shi-xian;ZHANG Rui;YAN Xue-chun;YANG Ya-lin(Henan Costar Group Co.Ltd.,Nanyang 473003,China)

机构地区：[1]河南中光学集团有限公司

出　　处：《光学与光电技术》2019年第6期107-112,共6页Optics & Optoelectronic Technology

基　　金：国家重点型号基金（ZLX2014215）资助项目

摘　　要：为满足昼夜观察的需求,设计了一款大相对孔径的可见光/近红外波段的复消色差物镜。在可见/近红外波段,分析了光学玻璃材料的色散特性,为复消色差物镜的光学设计工作提供了理论支撑。设计结果显示:选择合适的光学玻璃材料,二级光谱得到了很好的校正。物镜焦距7.4 mm,相对孔径1∶1.2,视场为44°,畸变为-0.7%,系统总长为15.5 mm。此共焦型物镜在光谱范围486~950 nm条件下,实现了无需调焦满足昼夜观察的使用需求,可广泛应用于安防监控、车载镜头等领域。In order to satisfy the requirement of day-night observation,the achromatic objective lens with large relative aperture in visible/near-infrared wavelengths is designed.In visible/near-infrared wavelengths,the dispersion characteristics of optical glass materials are analyzed,which provides theoretical support for the optical design of achromatic objective lens.The design results show that the secondary spectrum is well corrected by selecting suitable optical glass materials.The objective has the focal length of 7.4 nm,the relative aperture of 1∶1.2,the flied of view of 44°,the distortion of-0.7%,with a total length of 15.5 mm.Working during 486 nm to 950 nm range of wavelength,the confocal objective lens satisfies the requirement of day-night using.It can be used in many fields such as security monitoring and vehicle-mounted lens.

关 键 词：光学系统设计 二级光谱 大相对孔径 宽光谱 共焦 

分 类 号：O439[机械工程—光学工程]