Design of wide-angle lens for 8 mega-pixel mobile phone camera
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摘要: 为了满足市场对高像素手机广角镜头的需求,设计出一款800万像素大相对孔径的手机广角镜头。该手机镜头由4片塑料非球面透镜和1片红外滤光片组成,镜头的光圈值F为2.45,视场角为80,采用Omnivision公司的OV8850型号800万像素CMOS图像传感器,最大分辨率为3 280 pixel2 464 pixel,CMOS图像传感器的像素尺寸为1.1 m,奈奎斯特频率为454 lp/mm。设计结果显示,镜头在1/2奈奎斯特频率处,0.7视场内的MTF值均大于0.48,全视场的MTF值大于0.38;在奈奎斯特频率处,0.7视场内的MTF值大于0.15;最大畸变小于2%,因此可获得优良的成像质量。Abstract: In order to meet the requirement of mobile phone market on the wide-angle and high-pixel mobile phone lens, a wide-angle and 8 mega-pixel mobile phone lens is designed. The mobile phone lens are composed of 4 plastic aspheric lens and an IR filter, and the F-number is 2.45 and FOV is 80. The sensor OV8850 made by Omnivision with 8 mega pixels, maximum resolution of 3 280 pixel2 464 pixel, pixel size of 1.1 m, and Nyquist sampling frequency of 454 lp/mm. The design result shows that the MTF value is larger than 0.48 at 1/2 Nyquist sampling frequency in the 0.7 fields of view(FOV), and the MTF of FOV is larger than 0.38. The MTF value in 0.7 FOV is larger than 0.15 at Nyquist sampling frequency and the distortion is less than 2%.
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Key words:
- mobile phone lens /
- optics design /
- ZEMAX /
- 8 mega-pixel /
- wide-angle
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[1] 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):944-948. LIU M CH,ZHANG L,LIU P P,et al.. Design of lens for 3 mega-pixel mobile phone camera[J]. J. Appl. Optics,2008,29(6):944-948.(in Chinese) [2] 黄城,温同强,丁桂林,等. 2.5倍光学变焦内置式手机摄像镜头的设计[J]. 激光与光电子学进展,2009,46(5):49-54. HUANG CH,WEN T Q,DING G L,et al.. Design of 2.5× zoom camera lens within cell phone[J]. Laser Optoelectronics Progress,2009,46(5):49-54.(in Chinese) [3] 李豫东,汪波,郭旗,等. CCD与CMOS图像传感器辐射效应测试系统[J]. 光学 精密工程,2013,21(11):2778-2784. LI Y D,WANG B,GUO Q,et al.. Testing system for radiation effects of CCD and CMOS image sensors[J]. Opt. Precision Eng.,2013,21(11):2778-2784.(in Chinese) [4] 宋敏,郐新凯,郑亚茹. CCD与CMOS图像传感器探测性能比较[J]. 半导体光电,2005,26(1):8. SONG M,GUI X K,ZHANG Y R. Comparison of detection performance in CCD and CMOS image sensor[J]. Semiconductor Optoelectronics,2005,26(1):8.(in Chinese) [5] OV8850 8MP product brief [EB/OL].[2012-3-11].http://www.ovt.com. [6] 李文静. 500万像素手机镜头的光学设计[J]. 激光与光电子学进展,2009,46(1):56-59. LI W J. Optical design of 5-mega pixel mobile phone lens[J]. Laser Optoelectronics Progress,2009,46(1):56-59.(in Chinese) [7] 惠彬,刘雁杰,李景镇,等. 800万像素折衍混合式手机镜头设计[J]. 红外技术,2013,35(4)223-226. HUI B,LIU Y J,LI J ZH,et al.. Optical design of 8 mega-pixel hybrid diffractive-refractive mobile phone lens[J]. Infrared Technology,2013,35(4):223-226.(in Chinese) [8] 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):413-419. YANG Z,YANG H M,DING G L. An ultra-thin eight-mega-pixel mobile phone lens[J]. J. Appl. Optics,2013,34(3):413-419.(in Chinese) [9] TANG H C,CHOU M T. Optical lens system for taking image:US,8441745B2 [P].2013-5-14. [10] 李维善,陈琛,于国辉,等. 单机数字立体双通道放映镜头的光学设计[J]. 中国光学,2013,6(4):563-569. LI W S,CHEN CH,YU G H,et al.. Optical design of single digital stereo dual- channel projection lens[J]. Chinese Optics,2013,6(4):563-569.(in Chinese) [11] 郁道银,谈恒英.工程光学 [M].北京:机械工业出版社,2006. YU D Y,TAN H Y. Engineering Optics[M]. Beijing:Mechanical Industry Press,2006.(in Chinese) [12] 李晓彤,岑兆丰.几何光学像差光学设计 [M].浙江:浙江大学出版社,2007. LI X T,CEN ZH F. Geometrical Optics Aberrations and Optical Design[M]. Zhejiang:Zhejiang University Press,2007.(in Chinese) [13] 卢海平,刘伟奇,康玉思,等. 超大视场头盔显示光学系统设计[J]. 光学 精密工程,2012,20(5):979-987. LU H P,LIU W Q,KANG Y S,et al.. Design of compact optical system in wide-angle head mounted display[J]. Opt. Precision Eng.,2012,20(5):979-987.(in Chinese)
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