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Opt Express. 2008 Aug 18;16(17):13364-71.

Extension ratio of depth of field by wavefront coding method.

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1
Optical Electronic Information Engineering College, University of Shanghai for Science and Technology, 200093 Shanghai, China. panchao6350665@126.com

Abstract

An analysis of the depth of field (DOF) of the wavefront coding imaging system with a cubic phase mask is presented. A necessary condition on the base of that MTF of wavefront coding system is defocus-independent is described. Then the extension ratio of the DOF relative to that of traditional optical system is calculated. And the conclusion is also verified by the simulation results.

PMID:
18711574
[Indexed for MEDLINE]
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