1300万像素广角手机镜头设计

Design of 13 megapixel wide-angle mobile phone lens

为满足高解析力、广角手机镜头发展需求,基于ZEMAX设计了一款1300万像素的广角手机镜头。镜头由6片塑料透镜和近红外滤光片构成,系统焦距为3.36mm,全视场84°,系统F数为2.6,系统总长5.4mm,像高5.86mm。采用OmniVision公司的OV13B10图像传感器,分辨率为4208pixel×3120pixel,像元尺寸1.12μm×1.12μm。设计结果表明,在奈斯奎斯特频率为223lp/mm处,中心视场调制传递函数(MTF)优于49%,0.7以内视场MTF优于33%。全视场最大RMS半径3.192μm,最大畸变-3.948%。全视场相对照度均优于38%。研究结果为高像质、广角手机镜头提供设计参考。

In order to meet the development requirements of high resolution and wide-angle mobile phone lens, a 13 megapixel wide-angle mobile phone lens was designed based on ZEMAX. The lens is composed of six plastic lenses and a near-infrared filter with the focal length of the system of 3.36mm, the field of view of 84°, the F-number of the system of 2.6, and the total length of the system and the image height of 5.4mm and 5.86mm. Image sensor OV13B10 from OmniVision is adopted, with a resolution of 4208 pixel×3120 pixel, pixel size of 1.12μm×1.12μm. The design results show that the modulation transfer function(MTF) of the central field of view is greater than 49% and the MTF of the field of view within 0.7 is greater than 33% at the Nyquist frequency of 223lp/mm. The maximum RMS radius in full field of view is 3.192μm and the maximum distortion is-3.948%. The full field of view relative illuminance is better than 38%. The research provides a design reference for the high image quality, wide-angle mobile phone lens.