Open AccessExtension ratio of depth of field by wavefront coding method
Author(s) -
Chao Pan,
Jiabi Chen,
Rongfu Zgang,
Sonlin Zhuang
Publication year - 2008
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.16.013364
Subject(s) - wavefront , optics , depth of field , coding (social sciences) , physics , computer science , adaptive optics , mathematics , statistics
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.