用于大相对孔径红外镜头的衍射光学元件  

Diffractive Optical Elements Used in High Relative Aperture Infrared Lenses

作　　者：李荣刚[1] 张兴德[1] 贺谊亮[1] 

机构地区：[1]华北光电技术研究所,北京100015

出　　处：《激光与红外》2004年第6期464-466,共3页Laser & Infrared

摘　　要：将衍射光学元件应用于非制冷热像仪的大相对孔径红外镜头与传统设计相比 ,衍射光学元件的引入 ,增强了此类镜头的色差校正能力 ,提高了镜头的成像质量 ,提高了镜头的透过率 ,减少了光学零件的数量 ,减轻了系统重量 ,为提高非制冷热像仪的性能奠定了坚实基础。本文在色差、成像质量。In order to improve performance of uncooled thermal imager,diffractive optical elements (DOEs) are applied in high relative aperture IR lenses.Compared with conventional design,it enhances the ability of color correction,improves the image quality and lenses transmission,and reduces the elements and weight.DOEs provides fundamental basis for enhancing uncooled thermal imager performance.The paper compared four kinds IR lens in term of axial chromatic aberrations,MTF,transmission and MRTD.

关 键 词：衍射光学元件 红外镜头 光学设计 非制冷热像仪 

分 类 号：TN214[电子电信—物理电子学]