| 小型化同心反射式手机镜头设计 |
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| 引用本文： | 王洋,王宁,顾志远,张磊,付跃刚.小型化同心反射式手机镜头设计[J].红外与激光工程,2021,50(11):20210129-1-20210129-7. |
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| 作者姓名： | 王洋 王宁 顾志远 张磊 付跃刚 |
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| 作者单位： | 1.长春理工大学 光电工程学院，吉林 长春 130022 |
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| 基金项目： | 吉林省科技发展计划项目优秀青年人才基金（20190103046JH）；吉林省科技发展计划（20190302098G） |
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| 摘 要： | 基于现代社会对手机镜头高像素、小型化的要求，基于同心透镜原理设计了同心反射式手机镜头。通过光路计算，求解了系统的球差表达式，进一步获得了系统的初始结构。利用光学设计软件设计了光学系统，镜头采用像元大小为1.25 μm的曲面传感器，光学系统的F数为1.8，焦距为2.7 mm，最大全视场角为100°，系统总长为2.7 mm。设计结果表明，在空间截止频率400 lp/mm处，0.7视场的调制传递函数均大于0.34，全视场的调制传递函数均大于0.23，各视场的弥散斑半径均小于艾里斑。在全视场内，相对照度高于0.64，该设计满足手机镜头成像要求。
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| 关 键 词： | 光学设计 手机镜头 同心结构 反射式 曲面传感器 |
| 收稿时间： | 2020-12-11 |
Design of miniaturization concentric reflective mobile phone lens |
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| Wang Yang,Wang Ning,Gu Zhiyuan,Zhang Lei,Fu Yuegang.Design of miniaturization concentric reflective mobile phone lens[J].Infrared and Laser Engineering,2021,50(11):20210129-1-20210129-7. |
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| Authors: | Wang Yang Wang Ning Gu Zhiyuan Zhang Lei Fu Yuegang |
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| Affiliation: | 1.School of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, China2.Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China |
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| Abstract: | Based on the requirements of modern society for high pixels and miniaturization of mobile phone lenses, based on the principle of concentric lenses, a concentric reflective mobile phone lens was designed. Through optical path calculation, the spherical aberration expression of the system was solved, and the initial structure of the system was further obtained. The optical system was designed using optical design software, the lens adopted a curved sensor with a pixel size of 1.25 μm, the F number of the optical system was 1.8, the focal length was 2.7 mm, the maximum full field of view was 100°, and the total system length was 2.7 mm. The results show that at the spatial cut-off frequency of 400 lp/mm, the modulation transfer functions of the 0.7 field of view are all greater than 0.34, and the modulation transfer functions of the full field of view are all greater than 0.23. The radius of the diffuse spot in each field of view is smaller than the Airy disk. In the full field of view, the relative illuminance is higher than 0.64. This design meets the imaging requirements of mobile phone lenses. |
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