Experimental realization of an imaging system with an extended depth of field

Eyal Ben-Eliezer, Emanuel Marom, Naim Konforti, Zeev Zalevsky

Research output: Contribution to journalArticlepeer-review

Abstract

We describe the experimental realization of an all-optical imaging system with an extended depth of field (DOF). The core of the system is a phase mask consisting of 16 Fresnel lenses (FLs) that are spatially multiplexed and mutually exclusive. Because each FL, in tandem with the primary lens, is designed to produce a sharp image for a specific object plane location, jointly the FLs achieve a wide DOF. However, the resultant image exhibits reduced resolution. The acquired image, onto which we did not apply any postprocessing, clearly is sharper than that acquired with a clear-aperture imaging system with the same pupil size.

Original languageEnglish
Pages (from-to)2792-2798
Number of pages7
JournalApplied Optics
Volume44
Issue number14
DOIs
StatePublished - 10 May 2005

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