| Simple PSF based method for pupil phase mask＇s optimization in wavefront coding system |
| |
| 作者姓名： | ZHANG Wen-zi CHEN Yan-ping ZHAO Ting-yu YE Zi YU Fei-hong |
| |
| 作者单位： | State Key Laboratory of Modern Optical Instrumentation, Optical Engineering Department, Zhejiang University, Hangzhou 310027, China |
| |
| 摘 要： | By applying the wavefront coding technique to an optical system, the depth of focus can be greatly increased. Several complicated methods, such as Fisher Information based method, have already been taken to optimize for the best pupil phase mask in ideal condition. Here one simple point spread function （PSF） based method with only the standard deviation method used to evaluate the PSF stability over the depth of focus is taken to optimize for the best coefficients of pupil phase mask in practical optical systems. Results of imaging simulations for optical systems with and without pupil phase mask are presented, and the sharpness of image is calculated for comparison. The optimized results showed better and much more stable imaging quality over the original system without changing the position of the image plane.
|
| 关 键 词： | 波阵面 图象模拟 光学系统 点扩展函数 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006-08-21 |
Simple PSF based method for pupil phase mask’s optimization in wavefront coding system |
| |
| ZHANG Wen-zi CHEN Yan-ping ZHAO Ting-yu YE Zi YU Fei-hong.Simple PSF based method for pupil phase mask’s optimization in wavefront coding system[J].Journal of Zhejiang University Science,2007,8(2):180-185. |
| |
| Authors: | Zhang Wen-zi Chen Yan-ping Zhao Ting-yu Ye Zi Yu Fei-hong |
| |
| Institution: | (1) State Key Laboratory of Modem Optical Instrumentation, Optical Engineering Department, Zhejiang University, Hangzhou, 310027, China |
| |
| Abstract: | By applying the wavefront coding technique to an optical system, the depth of focus can be greatly increased. Several complicated
methods, such as Fisher Information on based method, have already been taken to optimize for the best pupil phase mask in
ideal condition. Here one simple point spread function (PSF) based method with only the standard deviation method used to
evaluate the PSF stability over the depth of focus is taken to optimize for the best coefficients of pupil phase mask in practical
optical systems. Results of imaging simulations for optical systems with and without pupil phase mask are presented, and the
sharpness of image is calculated for comparison. The optimized results showed better and much more stable imaging quality
over the original system without changing the position of the image plane.
|
| |
| Keywords: | Wavefront coding Pupil phase mask Depth of focus PSF stability Optimization Sharpness Imaging simulation |
| 本文献已被 维普 SpringerLink 等数据库收录！ |
