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

Lei Zhang | Zendy; 杨勇 Yang Yong | Zendy; Xing Zhao | Zendy; Zhiliang Fang | Zendy; Xiaocong Yuan | Zendy

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

Author(s) -

Lei Zhang,

杨勇 Yang Yong,

Xing Zhao,

Zhiliang Fang,

Xiaocong Yuan

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.026021

Subject(s) - optics , integral imaging , diffuser (optics) , depth of field , projection (relational algebra) , lens (geology) , computer simulation , physics , computer science , image (mathematics) , algorithm , computer vision , light source , mechanics

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.

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