Enhancement of depth-of-field in a direct projection-type integral imaging system by a negative lens array

被引：16
|
作者：
Zhang, Lei [1 ]
Yang, Yong [1 ]
Zhao, Xing [1 ]
Fang, Zhiliang [1 ]
Yuan, Xiaocong [1 ]
机构：
[1] Nankai Univ, Minist Educ China, Key Lab Opt Informat Sci & Technol, Inst Modern Opt, Tianjin 300071, Peoples R China
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 23期
关键词：
DISPLAY; LAYERS; FOCUS;
D O I：
10.1364/OE.20.026021
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a method for enhancing depth-of-field, in which the spot size on a marginal depth plane is reduced. This method is implemented in a projection-type integral imaging system using a negative lens array without a diffuser. Numerical simulation results show that the spot size is merely 5.7% of that in a conventional system. Thus, the depth-of-field in the proposed system is enhanced by 17.5 times over that in a conventional system. Optical experiments confirm good agreement between the results and numerical predictions. (C) 2012 Optical Society of America
引用
收藏
页码：26021 / 26026
页数：6
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