
Proceedings Paper
The influence of phase mask position upon EDoF systemFormat | Member Price | Non-Member Price |
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Paper Abstract
Special types of pupil mask with the appropriate phase and transmission distribution can be used to modify the 3D pointspread
function (PSF) in the desired way. Recently, many studies were addressed to extend the depth-of-field (EDoF) of
an imaging system via cubic phase pupil engineering. The intermediate image is detected with a digital sensor and the
final image formation is restored by post-process algorithms with the help of knowledge of the pupil mask. The EDoF
system is operated based on an assumption that the phase mask should be positioned exactly in the pupil of the optical
system. Unfortunately, in most practical cases, the exit pupil is not always available due to the complex layout of a
compound lens set and results in a limited practical benefit of this type of arrangement. In this paper, we present the
influence of the phase mask position upon PSF of an extended depth-of-field system. The characterizations of EDoF in
different viewing angles are dissimilar if the phase mask is not placed in the perfect pupil plane. Such properties should
be taken into consideration while designing an EDoF system. Finally, we will propose some potential candidate lenses
made to alleviate such difficulty.
Paper Details
Date Published: 30 September 2013
PDF: 8 pages
Proc. SPIE 8842, Novel Optical Systems Design and Optimization XVI, 884207 (30 September 2013); doi: 10.1117/12.2023500
Published in SPIE Proceedings Vol. 8842:
Novel Optical Systems Design and Optimization XVI
G. Groot Gregory; Arthur J. Davis, Editor(s)
PDF: 8 pages
Proc. SPIE 8842, Novel Optical Systems Design and Optimization XVI, 884207 (30 September 2013); doi: 10.1117/12.2023500
Show Author Affiliations
Sheng-Hsun Hsieh, National Chiao Tung Univ. (Taiwan)
Zih-Hao Lian, National Chiao Tung Univ. (Taiwan)
Zih-Hao Lian, National Chiao Tung Univ. (Taiwan)
Published in SPIE Proceedings Vol. 8842:
Novel Optical Systems Design and Optimization XVI
G. Groot Gregory; Arthur J. Davis, Editor(s)
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