Establishment of spectrophotometric standards based on InGaN based white LEDs

F. Samedov; O. Çelikel

doi:10.1117/12.668057

11 January 2006 Establishment of spectrophotometric standards based on InGaN based white LEDs

F. Samedov, O. Çelikel

Proceedings Volume 6033, ICO20: Illumination, Radiation, and Color Technologies; 603303 (2006) https://doi.org/10.1117/12.668057
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

In order to establish light emitting diode (LED) based spectrophotometric standard light source we used high-power Luxeon Star white LEDs having nominal electrical powers of 5W and 1W. Especially designed aluminum cooling block was used to protect LEDs from heating and to reduce heating effects on optical and electrical parameters. The chromaticity coordinate (CC) and correlated color temperature (CCT) properties of each LED were characterized by the measuring of spectral power distribution between 360 nm and 830 nm wavelength range. Then using spectral power distribution values and CIE color-matching functions at 2° observer, tristimulus values and CCs were calculated in both CIE-1931 and CIE-1960 spaces. CCTs then were calculated using computer interpolation method.

Citation Download Citation

F. Samedov and O. Çelikel "Establishment of spectrophotometric standards based on InGaN based white LEDs", Proc. SPIE 6033, ICO20: Illumination, Radiation, and Color Technologies, 603303 (11 January 2006); https://doi.org/10.1117/12.668057

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