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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 23 — Dec. 1, 2010
  • pp: 4030–4032

Illumination uniformity assessment based on human vision

Ivan Moreno  »View Author Affiliations


Optics Letters, Vol. 35, Issue 23, pp. 4030-4032 (2010)
http://dx.doi.org/10.1364/OL.35.004030


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Abstract

Assessing how uniform the light distribution is throughout an illuminated target is important in many applications, but traditional methods do not quantify the variability of illuminance as the human visual system (HVS) does. Considering that most light patterns are intended for humans, I propose a simple metric that assesses the uniformity in a similar way as humans do. This uniformity indicator is based on the fact that the HVS is highly sensitive to spatial frequencies and then uses the Fourier transform and the contrast sensitivity function of the HVS in a practical way.

© 2010 Optical Society of America

OCIS Codes
(120.5240) Instrumentation, measurement, and metrology : Photometry
(150.2950) Machine vision : Illumination
(230.3670) Optical devices : Light-emitting diodes
(330.5000) Vision, color, and visual optics : Vision - patterns and recognition
(080.3685) Geometric optics : Lightpipes

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: August 20, 2010
Revised Manuscript: October 28, 2010
Manuscript Accepted: October 28, 2010
Published: November 24, 2010

Citation
Ivan Moreno, "Illumination uniformity assessment based on human vision," Opt. Lett. 35, 4030-4032 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-23-4030


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