应用光学, 2008, 29 (5): 0767, 网络出版: 2010-06-13
200万像素手机摄像镜头的设计
Design of two-mega-pixel mobile phone camera lens
摘要
为了适用手机这一特殊领域对微型化和简单化的摄像镜头的需要,在传统球面玻璃镜片基础上结合非球面透镜理论,运用CODE V优化出一个用于可见波段且生产成本低廉的三镜片定焦摄像镜头系统。该镜头总长度小于5mm,并且有着很好的成像效果。为了结构紧凑并且能最大限度地降低生产成本,在结构设计中采用球面的玻璃镜片和非球面的塑料镜片,镜头的适应像素尺寸是2.52μm×2.52μm,相应的尼奎斯特频率是196条/mm,相关的调制传输函数值在尼奎斯特频率的1/2时达到40%,所成像面的球差控制在-0.05mm~0.05mm之内,最大畸变小于0.17%。该镜头可满足手机摄像镜头200万像素的要求。
Abstract
Based on the conventional spherical glass lens and the aspherical lens principle,a low cost and fixed-focus lens system is designed with the optical system design software CODE V to meet the requirement of the mobile communication on miniaturization and simplification camera lenses. The total length of the lens system is less than 5 mm and it has excellent imaging performance. An aspherical lens made of polyolefin-plastic is used to reduce the size and save production cost. The pixel size of the lens is 2. 52 μm ×2. 52 μm,the corresponding Nyquist frequency is 196 lines/mm,the relative resolution performance (modulation transfer function) of the design can reach 40 % at half of Nyquist frequency,the spherical aberration of this lens is between - 0. 05 mm and 0. 05 mm,and the maximal distortion is less than 0. 17%. The compact,low-cost,high-precision and miniature lens can meet the requirement of the two-mega pixels.
黄城, 温同强, 路建华, 陈婷婷, 丁桂林. 200万像素手机摄像镜头的设计[J]. 应用光学, 2008, 29(5): 0767. HUANG Cheng, WEN Tong-qiang, LU Jian-hua, CHEN Ting-ting, DING Gui-lin. Design of two-mega-pixel mobile phone camera lens[J]. Journal of Applied Optics, 2008, 29(5): 0767.