表面反射对菲涅耳透镜的影响  

Effect of Surface Reflection on Fresnel Lens

作　　者：李红军[1] 卢振武[1] 廖江红[1] 翁志成[1] 郑宣明[1] 赵晶丽[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应用光学国家重点实验室,长春130022

出　　处：《光学学报》2001年第9期1134-1138,共5页Acta Optica Sinica

摘　　要：使用薄膜沉积法制作 16阶菲涅耳透镜 ,用它代替常规的光学透镜可实现系统的轻量化、小型化 ,并增加系统设计的自由度。在标量衍射理论的基础上 ,应用菲涅耳公式和傅里叶变换分析SiO2 薄膜和基底的表面反射对菲涅耳透镜 - 1级衍射效率的影响 ,结果表明表面反射对菲涅耳透镜的成像质量影响较大 。The thin film deposition is used to make 16-step Fresnel lens. It can implement system lightweight and miniaturization and increase free degree of design. Based on the scalar theory, the effects of surface reflection of the SiO2 film and substrate on the diffractive efficiency were analyzed by Fresnel formula and Fourier transform. It was found that the surface reflection has great effect on imaging of Fresnel lens. The coating is used to decrease this effect.

关 键 词：薄膜沉积 菲涅耳透镜 表面反射 衍射效率 成像质量 光学元件 

分 类 号：O436.1[机械工程—光学工程] TB851.9[理学—光学]