节点文献

Analysis of eccentric photorefraction by Fourier optics

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 Yong Liu and Jiabi Chen College of Opto-Electro-Information Engineering, University of Shanghai for Science and Technology, Shanghai 200093 Department of Physics, Zhaoqing University, Zhaoqing 526061

【机构】 College of Opto-Electro-Information Engineering University of Shanghai for Science and Technology； College of Opto-Electro-Information Engineering University of Shanghai for Science and Technology Shanghai 200093 Department of Physics； Zhaoqing University； Zhaoqing 526061； Shanghai 200093；

【摘要】 <正>Eccentric photo-refraction usually is used as early eyesight diagnostic test of infants and small children. Unlike currently approved geometrical optical model of eccentric photorefractometer, the crescent formation and the light-intensity distribution in the pupil image of a myopic eye are analyzed by Fourier optics with the assumption of an isotropic scattering retina. In the case of little circular light source and rectangular slit, the simulation results of different myopic diopters are obtained by geometrical optical theory and Fourier optics respectively. It is found that the simulation results by Fourier optics are similar as those obtained by geometrical optics, and all simulations are almost corresponding to the experimental result. The result demonstrates that the new method presented here is feasible.更多还原

【Abstract】 Eccentric photo-refraction usually is used as early eyesight diagnostic test of infants and small children. Unlike currently approved geometrical optical model of eccentric photorefractometer, the crescent formation and the light-intensity distribution in the pupil image of a myopic eye are analyzed by Fourier optics with the assumption of an isotropic scattering retina. In the case of little circular light source and rectangular slit, the simulation results of different myopic diopters are obtained by geometrical optical theory and Fourier optics respectively. It is found that the simulation results by Fourier optics are similar as those obtained by geometrical optics, and all simulations are almost corresponding to the experimental result. The result demonstrates that the new method presented here is feasible.更多还原

【关键词】 optics； refraction； retina； currently； circular； approved； feasible； rectangular； isotropic； assumed；

【基金】 This work was supported by the National Basic Research Program of China (No. 2005CB724304); the Optical Science and Technology Program of Science and Technology Committee of Shanghai (No. 046105014);the Youth Program of Zhaoqing University (No. 0303).

【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2007年03期

【分类号】O438.2
【下载频次】55

知网节下载

节点文献中：

本文链接的文献网络图示:

本文的引文网络

节点文献