19 November 2003 All-optical extended focus imaging system
Author Affiliations +
Proceedings Volume 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life; (2003) https://doi.org/10.1117/12.523808
Event: 19th Congress of the International Commission for Optics: Optics for the Quality of Life, 2002, Florence, Italy
Abstract
A lens in conjunction with a multiplexed set of Fresnel lenses (FL) can significantly reduce the sensitivity of an optical system to defocus aberrations. Each FL is considered as a corrective lens with a slightly different focal length. Thus for a fixed detector plane, there is a set of object planes for which the composite lens provides perfect imaging. The various FLs are multiplexed using code division multiple access procedure. The resulting image is analyzed in this paper. One obtains a significant improvement of depth of field, albeit coupled with a reduction of resolution and image contrast.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Eyal Ben Eliezer, Eyal Ben Eliezer, Zeev Zalevsky, Zeev Zalevsky, Emanuel Marom, Emanuel Marom, Naim Konforti, Naim Konforti, "All-optical extended focus imaging system", Proc. SPIE 4829, 19th Congress of the International Commission for Optics: Optics for the Quality of Life, (19 November 2003); doi: 10.1117/12.523808; https://doi.org/10.1117/12.523808
PROCEEDINGS
2 PAGES


SHARE
RELATED CONTENT

Dynamic optically multiplexed imaging
Proceedings of SPIE (September 03 2015)
Novel subpixel imaging system with linear CCD sensors
Proceedings of SPIE (December 26 2001)
Measurement method for image stabilizing systems
Proceedings of SPIE (February 19 2007)
Two methods for increasing the depth of focus of imaging...
Proceedings of SPIE (September 29 2003)
Optical Butting Of Matrix Arrays
Proceedings of SPIE (February 22 1989)

Back to Top