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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 9, Iss. 8 — Aug. 1, 1970
  • pp: 1874–1878

Photometric Error Analysis. X: Enriched Energy (Total Illuminance) Calculations for Annular Apertures

A. T. Young  »View Author Affiliations


Applied Optics, Vol. 9, Issue 8, pp. 1874-1878 (1970)
http://dx.doi.org/10.1364/AO.9.001874


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Abstract

Encircled energy calculations show the effects of focus errors, spherical aberration, and a central stop on image contrast. The complementary quantity (excluded energy) gives the illumination at the center of a dark spot on an incoherent background and is useful in some photometric situations. A simple formula is given for the approximate calculation of the excluded energy at large distances from the center of the diffraction pattern.

© 1970 Optical Society of America

History
Original Manuscript: November 17, 1969
Published: August 1, 1970

Citation
A. T. Young, "Photometric Error Analysis. X: Enriched Energy (Total Illuminance) Calculations for Annular Apertures," Appl. Opt. 9, 1874-1878 (1970)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-9-8-1874

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