| 基于眼模型的折/衍混合眼底相机设计 |
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| 引用本文： | 许妍,王肇圻,田野.基于眼模型的折/衍混合眼底相机设计[J].光子学报,2009,38(5). |
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| 作者姓名： | 许妍 王肇圻 田野 |
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| 作者单位： | 南开大学,现代光学研究所,光电信息技术科学教育部重点实验室,天津,300071 |
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| 基金项目： | 国家自然科学基金重点项目(60438030);;国家自然科学基金(60577015)资助 |
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| 摘 要： | 应用二元衍射光学理论，设计了一个基于Gullstrand-LeGrand眼光学模型的折／衍混合免散瞳手持式数字眼底相机．该相机的视场角28°，摄影系统由五片透镜构成，其中包含一个二元面．在综合考虑人眼本身和外部系统的像差后，实现了全视场200万像素的高清晰成像，具有较大调焦能力，对-10D至7D屈光度人眼普遍适用．结果显示，该系统成像分辨率高于120lp／mm，场曲值小于0．75mm，畸变仅为7．0％，色差小于3．5μm．衍射光学元件的引入，有效地简化了系统，减小了重量和体积．
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| 关 键 词： | 光学设计 眼底相机 折／衍混合 眼模型 |
Hybrid Refractive/Diffractive Optical System Design of a Digital Retina Camera |
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| XU Yan,WANG Zhao-qi,TIAN Ye.Hybrid Refractive/Diffractive Optical System Design of a Digital Retina Camera[J].Acta Photonica Sinica,2009,38(5). |
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| Authors: | XU Yan WANG Zhao-qi TIAN Ye |
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| Institution: | Key Laboratory of Optoelectronic Information Science and Technology;Ministry of Education;Institute of Modern Optics;Nankai University;Tianjin 300071;China |
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| Abstract: | Using diffractive optics theory,a portable Hybrid Refractive/Diffractive digital retina camera without mydriatic was designed based on Gullstrand-Le Grand eye model.The camera consists of 5 lenses,including one binary surface,and realizes the highly clear image with 2 mega pixels in all the 28 fields of view after the comprehensive consideration of both the human eye and the camera.This camera has strong abilities for accommodation,which could adapt the different eyes from-10D to 7D.The result shows that th... |
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| Keywords: | Optical design Retina camera Hybrid Refractive/Diffractive Eye model |
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