大光圈微型高清照相物镜的设计和性能分析  

Design and Analysis of Micro-photographic Lenses with Large Aperture and High Resolution

作　　者：魏威[1] 胡正发[1] 夏智锋 蓝秀娟 

机构地区：[1]广东工业大学物理与光电工程学院,广东广州510006

出　　处：《广东工业大学学报》2016年第6期67-71,共5页Journal of Guangdong University of Technology

基　　金：国家自然科学基金资助项目(21271048);广东省重大科技专项资助项目(2011A080801015)

摘　　要：基于Д.C.Boпocob公式得到照相物镜的基本特征参数,通过PW法计算物镜系统的初始结构参数,设计了一款大光圈微型高清照相物镜,并在非序列仿真环境(Non-Sequential Component,NSC)下对系统结构合理性进行了分析.照相物镜的光圈值F数为2.2,视场角2 w=65°,系统总长6.13 mm,有效焦距为4.5 mm.系统由4片塑料非球面透镜和1片红外滤光片组成,其中第1、3、4片透镜为正透镜,第2片透镜为负透镜,光阑面位于第1片透镜之前.优化后,各视场的均方根(RMS)半径都小于艾里斑半径,在半奈奎斯特频率处各视场的MTF值均大于0.54,畸变小于2%.系统搭配Aptina的AR8033型CMOS,可实现800万像素光学品质的微型照相物镜系统.A set of micro-photographic lenses , with large aperture and high resolution , has been designed based on Д.C.Boпocob formula, and its initial configuration is calculated through the PW method .The structural rationality of lenses is systematically examined in NSC （ Non-Sequential Component ） situation . The F-number of the lens is 2.2, FOV angle is 65°, the total length of optical system is 6.13 mm, and the effective focus is 4.5 mm.The lenses system consists of 4 plastic aspheric lenses and 1 IR filter, in which the lenses of No.1, 3, and 4 are positive lenses, No.2 lens is negative lens, and the aperture stop is placed in front of the first lens .The optimized results indicate that RMS spot radius at each field is al-most less than the radius of Ariy disk , the MTF value is more than 0.54 at 1/2 Nyquist sampling frequen-cy , and the distortion is less than 2%.The lenses system equipped with AR 8033 CMOS from Aptina has formed applicable micro-photographic lenses of 8 mega-pixel.

关 键 词：光学工程 照相物镜 非序列 光圈数 

分 类 号：TN942.3[电子电信—信号与信息处理]