Extension ratio of depth of field by wavefront coding method

Optics Express
Chao PanSonlin Zhuang

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.

References

Mar 9, 2005·Applied Optics·Ramkumar NarayanswamyHans B Wach
Apr 28, 2006·Applied Optics·Paulo E X Silveira, Ramkumar Narayanswamy
Feb 21, 2008·Applied Optics·H B WachW T Cathey
Apr 10, 1995·Applied Optics·E R Dowski, W T Cathey

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