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Opto-Electronic Engineering 光电工程 Article 2018 年, 第 45 卷, 第 2 期 1300 万像素手机镜头设计耿雨晴 1, 赵烈烽 2, 张向东 1, 葛鹏 1* 1 510640 摘要 : 为满足高像素手机的要求, 本文根据光学成像理论, 利用 code V 软件设计出一种 1300 万像素手机镜头为了增加自由度, 减小像差, 得到更好的像质,

1 Opto-Electronic Engineering 光电工程 Article 2018 年, 第 45 卷, 第 2 期 1300 万像素手机镜头设计耿雨晴 1, 赵烈烽 2, 张向东 1, 葛鹏 1* 摘要 : 为满足高像素手机的要求, 本文根据光学成像理论, 利用 code V 软件设计出一种 1300 万像素手机镜头为了增加自由度, 减小像差, 得到更好的像质, 本文采用非球面表面进行光学设计该镜头由五片非球面镜片一片滤光镜组成设计得到光圈值 2.2, 半视场角 35, 有效焦距 3.6 mm, 镜头总长 3.6 mm 的轻薄型手机镜头最终中心视场在中间频率处 ( 即 223 lp/mm) 的 MTF 值大于 0.6, 在高频处大于 0.2, 在 0.8 视场中频 MTF 值大于 0.4, 可见优化完毕后成像效果可满足使用要求关键词 : 光学设计 ; 非球面 ; 手机镜头 ;1300 万像素中图分类号 :TN 文献标志码 :A 引用格式 : 耿雨晴, 赵烈烽, 张向东, 等万像素手机镜头设计 [J]. 光电工程,2018,45(2): Design of 13 mega-pixel mobile phone lens based on code V Geng Yuqing 1, Zhao Liefeng 2, Zhang Xiangdong 1, Ge Peng 1* 1 Engineering Research Center for Optoelectronics of Guangdong Province, School of Physics and Optoelectronics, South China University of Technology, Guangzhou, Guangdong , China; 2 Guangdong Yejia Opto-electronic Corporation, Dongguan, Guangdong , China Abstract: In order to meet the unmet commerce needs of high pixel mobile phone, more and more designs come into being. According to the theory of ray optics, a 13 mega-pixel mobile phone lens was designed based on code V, an optical design software. It consists of five aspherical lenses and a filter. The F-number of the lens is 2.2, the half field of view is 35 degrees, the effective focal length is 3.6, and the total length of the lens is 3.6 mm. The MTF(modulation transfer function) of central field of view is greater than 0.6, the high frequency is greater than 0.2 and in the 0.8 field of view the middle frequency is greater than 0.4. In a word, the lens can meet the requirement of the high imaging quality camera. Keywords: optical design; aspheric lens; mobile phone; 13 mega-pixels Citation: Geng Y Q, Zhao L F, Zhang X D, et al. Design of 13 mega-pixel mobile phone lens based on code V[J]. Opto-Electronic Engineering, 2018, 45(2): 收稿日期 : ; 收到修改稿日期 : 基金项目 : (2016A , 2015A ) (2016B ) ( , ) 作者简介 : (1993-) phgengyuqing@mail.scut.edu.cn 通信作者 : (1983-) scpge@scut.edu.cn

2 1 引言 2000 J-phone [1] A5403CA mm 17.4 mm SCH-M SCH-B M8910 [2] CMOS(complementary metal oxide semiconductor) 2008 F mm [3] 2011 F mm 800 [4] 2013 F [5] mm 设计要点 CMOS CMOS COMS 5 μm 1.1 μm Omnivision OV mm 1.12 μm 1.12 μm μm 3512 μm CMOS 1300 CMOS CMOS R 1000 (1) 2 p p 446 lp/mm MTF lp/mm 0.2 [6] y=tanθ f 5 mm 35 35% 2% TV 1% [7] 25 C 表 1 设计参数 Table 1 Design parameters Parameter Value Angle of view/( ) 71 Distortion/% 2.5 F-number 2.2 Effective focal length/mm 3.58 Back focal length/mm 0.45 Relative illumination/% 50 Overall length/mm 3.6 Total pixels/mega-pixels 13 3 初始结构的选择 PW P W P ni( i i )( i u), W ( i i )( i u) (2) PW F 2.2 CN A [8] Code V 1 2 MTF

3 Modulation mm Spatial frequency/(cycles/mm) 图 1 初始结构 Fig. 1 Initial structure 3.6 mm F mm 0.3 mm [9] glassfit APL OKP4HT 图 2 初始结构的 MTF 曲线 Fig. 2 MTF curve of initial structure 6 NBK7 700 nm~1000 nm 4 优化过程 3.6 mm F 2.2 Code V 0.35 mm 0.3 mm 3.6 mm 5 mm 2% 0.2 mm Code V mm 图 3 优化后的镜头结构 Fig. 3 Optimized lens structure

4 656.3 nm nm nm nm nm F 2.2 ω= mm 3.6 mm MTF 1300 F 5 成像质量分析 4 MTF [10] lp/mm MTF Modulation Spatial frequency/(cycles/mm) 图 4 优化后各视场 MTF 曲线 Fig. 4 MTF curve of each field of view after optimization lp/mm lp/mm MTF mm 3% Astigmatic field curves IMG HT Focus (millimeters) Distortion/% 图 5 优化后的场曲畸变图 IMG HT Fig. 5 Field curvature and distortion plots after optimization 5.0 Field position 0.00, , , , , , , , , , , , , , , , , , , , Relative illuminance/% Relative field height Defocusing 图 6 点列图 Fig. 6 Spot diagram 图 7 相对照度曲线 Fig. 7 Relative illuminance curve

5 6 公差分析 [11] RMS code V 0.01 [12] 8 F1 90% RMS Cumulative probability/% 结论 RMS wavefront error 图 8 RMS 波前误差 Fig. 8 RMS wavefront error Code V mm F 2.2 MTF 参考文献 [1] Chen P B, Gao X Y. Optical design of the 13 mega-pixels mobile phone camera[c]//proceedings of the rd International Conference on Materials Engineering, Manufacturing Technology and Control, [2] Wang X Y. Optical design of built-in high-pixel mobile phone lens[d]. Suzhou: Soochow University, 王小羊. 内置式高像素手机镜头的设计 [D]. 苏州 : 苏州大学, [3] Liu M C, Zhang L, Liu P P, et al. Design of lens for 3 mega-pixel mobile phone camera[j]. Journal of Applied Optics, 2008, 29(6): 刘茂超, 张雷, 刘沛沛, 等. 300 万像素手机镜头设计 [J]. 应用光学, 2008, 29(6): [4] Li G, Wang J Y, Zhang Y. Design of 8 mega-pixel mobile phone camera[j]. Journal of Applied Optics, 2011, 32(3): 李广, 汪建业, 张燕. 800 万像素手机镜头的设计 [J]. 应用光学, 2011, 32(3): [5] Zhang J Y, Huang Y Q, Xiong F B, et al. Design of 10 mega-pixel mobile phone lens[c]//proceedings of Third International Conference on Instrumentation, Measurement, Computer, Communication and Control, 2013: [6] Yu T, Chi M C, Li Y H, et al. The design of hybrid diffraction-refraction 13 mega-pixel mobile phone lens[j]. Journal of Changchun University of Science and Technology (Natural Science Edition), 2015, 38(6): 于艇, 迟名辰, 李艳红, 等万像素折衍混合式手机镜头设计 [J]. 长春理工大学学报 ( 自然科学版 ), 2015, 38(6): [7] Sun W S, Chu P Y, Tien C L, et al. Zoom lens design for 10.2-megapixel APS-C digital SLR cameras[j]. Applied Optics, 2017, 56(3): [8] Qiu X X. Large-aperture cellphone lens with pixels at ten-million level: CN A[P] 邱小雄. 一种大光圈千万像素的手机镜头 : CN A[P] [9] Guo W K, Wang M, Xu M, et al. Camera design of 3P slim 5 mega-pixel lens[j]. Opto-Electronic Engineering, 2016, 43(9): 郭王凯, 王敏, 徐苗, 等. 3P 超薄 500 万像素手机镜头设计 [J]. 光电工程, 2016, 43(9): [10] Yang Z, Yang H M, Ding G L. An ultra-thin eight-mega-pixel mobile phone lens[j]. Journal of Applied Optics, 2013, 34(3): 杨周, 阳慧明, 丁桂林. 一款超薄 800 万像素手机镜头的设计 [J]. 应用光学, 2013, 34(3): [11] Song D F, Zhang P, Wang C, et al. Design of mobile phone camera lens based on ZEMAX[J]. Journal of Applied Optics, 2010, 31(1): 宋东璠, 张萍, 王诚, 等. 基于 ZEMAX 的手机摄像镜头设计 [J]. 应用光学, 2010, 31(1): [12] CODE V 10.5, Optical Research Associates, East Foothill Boulevard, Pasadena, CA

6 Design of 13 mega-pixel mobile phone lens based on code V Geng Yuqing 1, Zhao Liefeng 2, Zhang Xiangdong 1, Ge Peng 1* 1 Engineering Research Center for Optoelectronics of Guangdong Province, School of Physics and Optoelectronics, South China University of Technology, Guangzhou, Guangdong , China; 2 Guangdong Yejia Opto-electronic Corporation, Dongguan, Guangdong , China mm Optimized lens structure Overview: To meet the unmet commerce needs of high pixel mobile phone, more and more designs come into being. With the maturity of the processing method of the aspheric surface, the improvement of the machining accuracy and applications of the manufacturing materials and CMOS sensor, both benefit the development of the high-quality lens. According to the theory of ray optics, a 13 mega-pixel mobile phone lens was designed based on code V, an optical design software. The sensor OV16880 has 5 mega-pixel which is made by Omnivision Company, whose pixel size is 1.12 μm 1.12 μm, so the limiting resolution is 446 lp/mm. In order to shorten the total lens length, effectively control the aberration and obtain better image quality, aspheric surfaces were used on each lens surface. For the sake of safety and cost saving, optical plastics were selected for design. Optical plastic is a kind of ideal material because of its good transmittance, well plasticity and low processing cost. The curvature and even non-spherical coefficients of each lens were set as variables. Code V can change these variables by accelerating the damping two multiplication to improve image quality. We should consider the actual processing, preventing that the concave lens center was too thin, convex lens edge was thin and so on. In the automatic optimization of the structural constraints, boundary conditions were added, so that the lens center thickness was greater than 0.35 mm and the edge thickness was greater than 0.3 mm. The design in this article consisted of five aspherical lenses and a filter. The F-number of the lens is 2.2, the half field angle is 35 degrees, the effective focal length is 3.6, and the total length of the lens is 3.6 mm. The MTF at central field of view is greater than 0.6, at the high frequency is greater than 0.2. In the 0.8 field of view the middle frequency is greater than 0.4. In a word, the lens can meet the requirement of the high imaging quality camera. This mobile phone camera s overall length is shorter than the common design. It can be used to design ultra-thin mobile phone; MTF value is high and well match with the 13 mega-pixel chip. The F number is small under low illumination conditions. Without the help of external light, could also has good imaging quality. Citation: Geng Y Q, Zhao L F, Zhang X D, et al. Design of 13 mega-pixel mobile phone lens based on code V[J]. Opto-Electronic Engineering, 2018, 45(2): Supported by Natural Science Foundation of Guangdong Province (2016A , 2015A ), the Key Technologies R&D Program of Guangdong Province (2016B ) and the Key Technologies R&D Program of Guangzhou City ( , ) * scpge@scut.edu.cn

[1-3] (Smile) [4] 808 nm (CW) W 1 50% 1 W 1 W Fig.1 Thermal design of semiconductor laser vertical stack ; Ansys 20 bar ; bar 2 25 Fig

[1-3] (Smile) [4] 808 nm (CW) W 1 50% 1 W 1 W Fig.1 Thermal design of semiconductor laser vertical stack ; Ansys 20 bar ; bar 2 25 Fig 40 6 2011 6 Vol.40 No.6 Infrared and Laser Engineering Jun. 2011 808 nm 2000 W 1 1 1 1 2 2 2 2 2 12 (1. 710119 2. 710119) : bar 808 nm bar 100 W 808 nm 20 bar 2 000 W bar LIV bar 808 nm : : TN248.4 TN365