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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 8 — Sep. 4, 2013

Retinal light distributions, the Stiles–Crawford effect and apodization

Gerald Westheimer  »View Author Affiliations


JOSA A, Vol. 30, Issue 7, pp. 1417-1421 (2013)
http://dx.doi.org/10.1364/JOSAA.30.001417


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Abstract

Analysis of retinal image formation for beams of coherent and incoherent radiation emphasizes the role of the Poynting vector’s inclination with respect to the retinal image plane. Coherent beams interfere and give rise to a single Poynting vector that highlights the unique direction of incidence of energy flow, whereas multiple incoherent beams, especially incoherent extended sources in the pupil, generate electro-magnetic disturbances in the image plane each characterized by Poynting vectors of their own. As a result, the Stiles–Crawford diminution of luminant efficiency adds differently depending on the coherence of the entering light. Two practical considerations follow: first, in performing diffraction calculations for the retinal image from known wavefronts in the pupil plane, apodization terms should not be factored in, and, second, in principle, for perfect imaging in standard target viewing, Stiles–Crawford integration with increasing pupil diameter is not expected.

© 2013 Optical Society of America

OCIS Codes
(330.5370) Vision, color, and visual optics : Physiological optics
(330.4595) Vision, color, and visual optics : Optical effects on vision
(330.7331) Vision, color, and visual optics : Visual optics, receptor optics

ToC Category:
Vision, Color, and Visual Optics

History
Original Manuscript: March 4, 2013
Revised Manuscript: April 27, 2013
Manuscript Accepted: May 3, 2013
Published: June 27, 2013

Virtual Issues
Vol. 8, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Gerald Westheimer, "Retinal light distributions, the Stiles–Crawford effect and apodization," J. Opt. Soc. Am. A 30, 1417-1421 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=josaa-30-7-1417

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