300～1100nm宽波段光学系统设计  

Design of 300～1100 nm Board-waveband Optical System

作　　者：刘娟娟[1,2] 郭帮辉[1] 吴宏圣[1] 刘英[1,2] 王健[1] 孙强[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,长春130033 [2]中国科学院研究生院,北京100049

出　　处：《光子学报》2010年第10期1766-1769,共4页Acta Photonica Sinica

基　　金：国家高技术研究发展计划(2007AA12Z110);国家自然科学基金(60507003);吉林省科技发展计划杰出青年项目资助

摘　　要：为了在工业检测中实现可见光探测向近紫外和近红外波段的拓展,在消色差和消热差的要求下,完成了300～1100nm宽波段光学系统设计,并进行了工业检测样机研制.为了获得足够的后工作距,系统采取反远距的结构型式,并在后工作距内放置镀膜棱镜进行三路分光,分别实现近紫外、可见光和近红外成像.通过合理选择透镜材料来达到消色差要求,采用移动透镜来完成消热差设计.系统视场为±3.5°,焦距为66.5mm,F/#为3.3,后工作距为63mm,总长132mm.结果表明:系统在50lp/mm处的MTF均大于0.3,在-10～+50℃温度范围内保持良好成像,成像质量满足实用要求.所研制样机在实验中获得满意结果.系统通过宽波段探测增大了目标信息获取量,在工业检测和农业检测领域具有巨大优势.In order to extend visualized detection to near ultraviolet and near infrared waveband for industrial testing,under the requirement of achromatic and passive thermal design,broad-waveband optical system working in 300～1 100 nm range is designed,and prototype for industrial testing is developed.Inverted telephoto construction is adopted to achieve an enough back focal length,and splitting the optical beams into three is achieved by insetting a coating prisms within the back focal length,near ultraviolet,visual and near infrared are imaged in three beams respectly.Reasonably lens material is chose to realize achromatic design.The system is passive thermal by moving a lens.The designed system has a field-of-view of ±3.5°,the effective focal length,F/#,back focal length and total length is 66.5 mm,3.3 nm,63 mm and 132 mm respectively.The results indicate that all MTF is more than 0.3 at 50 lp/mm,and a good performances is achieved over a temperature range（-10～＋50）℃,the image requirement is met.Prototype exhibit excellent resulting during experiment.The system gathers as much information as possible about the detected objects by extending waveband,and a good advantage is exhibited in industrial and agricultural testing.

关 键 词：宽波段 消热差 反远距 光学设计 

分 类 号：TN23[电子电信—物理电子学] O439[机械工程—光学工程]