Spectral Matching With an LED-Based Spectrally Tunable Light Source

Published

August 4, 2005

Author(s)

Irena Fryc, Steven W. Brown, Yoshihiro Ohno

Abstract

A spectrally tunable light source using a large number of LEDs and an integrating sphere has been designed and constructed at the National Institute of Standards and Technology (NIST). The source is designed to have a capability of producing any visible spectral distribution, mimicking various light sources in the visible region by feedback control of the radiant power emitted by individual LEDs. The spectral irradiance or radiance of the source is measured by a standard reference instrument; the source will be used as a transfer standard for colorimetric, photometric and radiometric applications. A series of simulations have been conducted to predict the performance of the designed tunable source and source distributions have been realized for a number of target distributions.

Proceedings Title

Proceedings| 5th International Conference on Solid State Lighting

Conference Dates

July 31-August 4, 2005

Conference Title

SPIE

Pub Type

Conferences

Keywords

LED, light emitting diode, lighting, radiometry, spectrometry, tunable source

Citation

Fryc, I. , Brown, S. and Ohno, Y. (2005), Spectral Matching With an LED-Based Spectrally Tunable Light Source, Proceedings| 5th International Conference on Solid State Lighting (Accessed October 20, 2025)