Experimental realization of an imaging system with an extended depth of field
Applied Optics, Vol. 44, Issue 14, pp. 2792-2798 (2005)
http://dx.doi.org/10.1364/AO.44.002792
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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.
© 2005 Optical Society of America
OCIS Codes
(080.1010) Geometric optics : Aberrations (global)
(080.3620) Geometric optics : Lens system design
(110.0110) Imaging systems : Imaging systems
Citation
Eyal Ben-Eliezer, Emanuel Marom, Naim Konforti, and Zeev Zalevsky, "Experimental realization of an imaging system with an extended depth of field," Appl. Opt. 44, 2792-2798 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-14-2792
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