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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 5 — Feb. 27, 2012
  • pp: 4939–4956

Color rendering map: a graphical metric for assessment of illumination

Jesús M. Quintero, Antoni Sudrià, Charles E. Hunt, and Josep Carreras  »View Author Affiliations

Optics Express, Vol. 20, Issue 5, pp. 4939-4956 (2012)

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The method of evaluating color rendering using a visual, graphical metric is presented. A two-dimensional Color Rendering Map (CRM) of a light source’s color-rendering capabilities is explained and demonstrated. Extension of this technique to three-dimensional CRMs of objects under illumination is explained, including the method of introducing numerical indices in order to evaluate standards for specific applications in lighting. Three diverse applications, having a range from subtle to significant color variation, are shown with their respective CRMs. These three applications are also used to demonstrate how three differing light sources produce different maps. The results show a flexible, simple method to obtain a clear, visual determination of color rendering performance from differing sources used in differing illumination applications. The use of numeric indices in these applications shows how specific standards can be imposed in assessing the applicability of a light source.

© 2012 OSA

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(330.1710) Vision, color, and visual optics : Color, measurement
(330.1730) Vision, color, and visual optics : Colorimetry
(330.1715) Vision, color, and visual optics : Color, rendering and metamerism

ToC Category:
Vision, Color, and Visual Optics

Original Manuscript: January 5, 2012
Revised Manuscript: January 28, 2012
Manuscript Accepted: January 29, 2012
Published: February 13, 2012

Virtual Issues
Vol. 7, Iss. 4 Virtual Journal for Biomedical Optics

Jesús M. Quintero, Antoni Sudrià, Charles E. Hunt, and Josep Carreras, "Color rendering map: a graphical metric for assessment of illumination," Opt. Express 20, 4939-4956 (2012)

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