Definitions

CIE: Commission Internationale de l'Eclairage (International Commission on Illumination). International organization that sets standards and methods used for measuring color and illumination.

CIE Coordinates: A set of 3 numbers (x,y,z) used to map color space. In practice only 2 numbers are used (x,y). This is possible since the numbers are constrained so that so that x+y+z=1.

Dominant Wavelength l_d : Highest intensity wave as perceived by the human eye.

Peak Wavelength l_p : Highest Intensity wavelength.

Illuminant E: A hypothetical equal wavelength intensity light source (white light).

Spectral Width: A measure of the wavelength distribution in a light source; analogous to the Full Width at Half Maximum (FWHM).

Saturation: Perceived purity of color (0% saturation = white light).

Tristimulus Response Curves: A set of curves developed by the CIE in 1931 that approximate the wavelength response of the three color receptors in the human eye.

CIE Color Space Curve (1931 2� Observer)

| HOME | PRODUCTS | ABOUT US | SALES | CONTACT US |TECHNICAL INFO |

copyright (c) 2002-2005 brite-led.com all rights reserved