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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 15, Iss. 12 — Dec. 1, 1998
  • pp: 3016–3019

Dependence of Fresnel number on aperture stop position

C. J. R. Sheppard and P. Török  »View Author Affiliations


JOSA A, Vol. 15, Issue 12, pp. 3016-3019 (1998)
http://dx.doi.org/10.1364/JOSAA.15.003016


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Abstract

The influence of aperture stop position on the focusing properties of a lens is investigated. Expressions are obtained for the optical coordinates in terms of the system geometry. If the aperture stop is placed in the front focal plane of the lens, the effective Fresnel number is infinite. For other positions, the effective Fresnel number can be made either positive or negative, corresponding to focal shift either toward or away from the lens and a resulting coordinate rescaling.

© 1998 Optical Society of America

OCIS Codes
(050.1220) Diffraction and gratings : Apertures
(050.1940) Diffraction and gratings : Diffraction
(260.1960) Physical optics : Diffraction theory

Citation
C. J. R. Sheppard and P. Török, "Dependence of Fresnel number on aperture stop position," J. Opt. Soc. Am. A 15, 3016-3019 (1998)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-12-3016


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