基于6次反射环形孔径透镜的微光学标签系统
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摘要
介绍了一种微光学标签系统,结合理论分析提出用大孔径长焦距的透镜作为接收端可以提升系统的成像性能。利用Zemax光学软件设计出一种大孔径长焦距的6次反射环形孔径超薄透镜,该透镜前表面为平面反射镜,后表面为4个同轴环形非球面反射镜,外直径为28mm,有效焦距为38mm,镜头厚度为5mm。在保证与4次反射透镜通光孔径一致的条件下,通过改进透镜结构增加了反射次数,减小了厚度,扩展了焦距。对基于环形孔径超薄透镜为接收端的微光学标签系统进行了整体优化分析,并给出了模拟成像图的对比,结果发现使用6次反射透镜做接收端可以增加系统的接收距离,减小接收图像的畸变。最后利用同态滤波的处理方法,有效地校正了亮度不均匀的接收图像。
A special micro-optics label system is introduced.A large aperture and long focal length lens structure,which is used as the system receiving terminal,is demonstrated to be able to improve the imaging performance significantly by theoretical analysis.A six-reflection fold annular aperture ultra-thin lens with large aperture and long focal length is designed with the aid of optical engineering software Zemax.The front surface is a plane mirror and the rear surface consists of four concentric annular aspheric reflectors.The outer diameter of the lens is 28 mm,the effective focal length is 38 mm,and the thickness of the lens is 5mm.With the clear aperture consistency of a four-reflection fold annular aperture lens,the structure of the equipment is improved to increase the number of reflections,effectively reduce the thickness of the lens,and enlarge the focal length of lens.In this work,an optimized design and analysis to the micro-optics label system are reported.It is based on the annular aperture ultrathin lens as receiving terminal.And the comparison of simulation imaging is given.The results show that using sixreflection fold annular aperture lens as receiving terminal can increase the receiving distance and reduce the distortion of simulated images.Finally,a received image with non-uniform brightness is effectively corrected by using homomorphic filtering method.
A special micro-optics label system is introduced.A large aperture and long focal length lens structure,which is used as the system receiving terminal,is demonstrated to be able to improve the imaging performance significantly by theoretical analysis.A six-reflection fold annular aperture ultra-thin lens with large aperture and long focal length is designed with the aid of optical engineering software Zemax.The front surface is a plane mirror and the rear surface consists of four concentric annular aspheric reflectors.The outer diameter of the lens is 28 mm,the effective focal length is 38 mm,and the thickness of the lens is 5mm.With the clear aperture consistency of a four-reflection fold annular aperture lens,the structure of the equipment is improved to increase the number of reflections,effectively reduce the thickness of the lens,and enlarge the focal length of lens.In this work,an optimized design and analysis to the micro-optics label system are reported.It is based on the annular aperture ultrathin lens as receiving terminal.And the comparison of simulation imaging is given.The results show that using sixreflection fold annular aperture lens as receiving terminal can increase the receiving distance and reduce the distortion of simulated images.Finally,a received image with non-uniform brightness is effectively corrected by using homomorphic filtering method.
引文
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[17]Liang Chuanhui,Wang Yudan,Du Guohao,et al.Study on contrast enhancement algorithm for X-ray images of synchrotron radiation[J].Acta Optica Sinica,2015,35(3):0310003.梁传晖,王玉丹,杜国浩,等.同步辐射X射线图像对比度增强算法研究[J].光学学报,2015,35(3):0310003.
[18]Zhang Chengyi.Optimal design of homomorphic filter based on Matlab[J].Applied Optics,2010,31(4):584-588.张成义.基于Matlab的同态滤波器的优化设计[J].应用光学,2010,31(4):584-588.
[19]Sujatha C M,Navinkumar K,Arunlal K S,et al.Performance evaluation of homomorphic filtering,anisotrophic filtering and autocontrast algorithm[C].Advances in Computing,Control&Telecommunication Technologies,2009:27-29.
[2]Zhang Qigui,Zheng Yongjie,He Zhi.Bar code technology and application[J].Electronic Technology,1996(3):26-29.张起贵,郑永杰,贺智.条形码技术及应用[J].电子工艺技术,1996(3):26-29.
[3]Shen Yuchao,Shen Shuqun.Radio frequency identification technology and its development[J].Application of Electronic Technology,1999,25(1):4-5.沈宇超,沈树群.射频识别技术及其发展现状[J].电子技术应用,1999,25(1):4-5.
[4]Liu Hao.Application of near field communication based on NFC technology[J].China Radio,2010(12):1-2.刘浩.基于NFC技术的近场通信应用探索[J].中国无线电,2010(12):1-2.
[5]Mohan A,Woo G,Hiura S,et al.Bokode:imperceptible visual tags for camera based interaction from a distance[C].ACM Transactions on Graphics(TOG),2009,28(3):98.
[6]Lin Wu,Liang Zhongcheng,Zhang Hao.Design of micro-optical label system of active encryption[J].Internet of Things Technologies,2012,2(3):25-28.林武,梁忠诚,张浩.有源加密型微光学标签系统的设计[J].物联网技术,2012,2(3):25-28.
[7]Zhang Hao,Liang Zhongcheng,Lin Wu.The design of micro visual optical tag system by passive light source[J].Internet of Things Technologies,2012,2(4):22-24.张浩,梁忠诚,林武.无源微型可视化光学标签系统的设计[J].物联网技术,2012,2(4):22-24.
[8]Li Zhipeng,Liang Zhongcheng.Design and production of integrated micro-optics tag system[J].Electro-Optic Technology Application,2012,28(2):5-8.李志鹏,梁忠诚.集成化微光学标签系统的设计与制作[J].光电技术应用,2013,28(2):5-8.
[9]Tremblay E J,Stack R A,Morrison R L,et al.Ultrathin cameras using annular folded optics[J].Applied Optics,2007,46(4):463-471.
[10]Ge Lan,Liang Zhongcheng.Micro-optics label receiving system based on annular aperture ultra-thin lens[J].Acta Optica Sinica,2015,35(12):1222001.戈兰,梁忠诚.基于环型孔径超薄透镜的微光学标签接收系统[J].光学学报,2015,35(12):1222001.
[11]Geary J M.Introduction to lens design:with practical ZEMAX examples[M].Richmond:Willmann-Bell,2002.
[12]Wang Peng,Du Xue,Hui Changshun.Polishing diamond turning surface micro texture improvement[J].Acta Optica Sinica,2015,35(3):0322001.王朋,杜雪,回长顺.金刚石车削表面微纳织构的气囊抛光改进[J].光学学报,2015,35(3):0322001.
[13]Gao Duorui,Hu Hui,Wang Wei,et al.A novel and easy processing,design of off-axis three mirror optical system alignment[J].Chinese J Lasers,2015,42(6):616001.高铎瑞,胡辉,汪伟,等.一种改进的易于加工、装调的离轴三反光学系统设计[J].中国激光,2015,42(6):616001.
[14]Pan Junhua.The design,manufacture and test of the aspherical optical surfaces[M].Beijin:Science Press,1994:6-20.潘君骅.光学非球面的设计、加工与检验[M].北京:科学出版社,1994:6-20.
[15]Haney M W.Performance scaling in flat imagers[J].Applied Optics,2006,45(13):2901-2910.
[16]Liu Jia′nan,Zhang Qiuju.Implementation of image gray level correction algorithm based on OpenCV[J].Journal of Jiangnan University(Natural Science Edition),2011,10(6):662-666.刘佳男,张秋菊.基于OpenCV的图像灰度校正算法的实现[J].江南大学学报(自然科学版),2011,10(6):662-666.
[17]Liang Chuanhui,Wang Yudan,Du Guohao,et al.Study on contrast enhancement algorithm for X-ray images of synchrotron radiation[J].Acta Optica Sinica,2015,35(3):0310003.梁传晖,王玉丹,杜国浩,等.同步辐射X射线图像对比度增强算法研究[J].光学学报,2015,35(3):0310003.
[18]Zhang Chengyi.Optimal design of homomorphic filter based on Matlab[J].Applied Optics,2010,31(4):584-588.张成义.基于Matlab的同态滤波器的优化设计[J].应用光学,2010,31(4):584-588.
[19]Sujatha C M,Navinkumar K,Arunlal K S,et al.Performance evaluation of homomorphic filtering,anisotrophic filtering and autocontrast algorithm[C].Advances in Computing,Control&Telecommunication Technologies,2009:27-29.