Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NIST Facility for Color Rendering Simulation



Wendy L. Davis, J L. Gardner, Yoshihiro Ohno


The color rendering index (CRI) does not adequately assess the color rendering properties of solid-state light sources. An improved metric will be critical to the development of such new light sources for general lighting applications. A facility for color rendering simulation of real objects has been developed at NIST, which measures the spectral reflectance of object surfaces, calculates the spectrum of each pixel when illuminated by a given light source, and displays the resultant color image on a computer monitor. Based on these simulations, a number of modifications of the CRI have been developed for an improved color rendering metric.
Proceedings Title
10th | AIC Colour 05 | Proceedings | Book
Conference Dates
May 8-13, 2005
Conference Location
Granada, SP
Conference Title
Congress of the International Color Association


color rendering, color rendering index, LED, solid-state lighting


Davis, W. , Gardner, J. and Ohno, Y. (2005), NIST Facility for Color Rendering Simulation, 10th | AIC Colour 05 | Proceedings | Book, Granada, SP (Accessed June 24, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created May 13, 2005, Updated June 14, 2017