An official website of the United States government
Here’s how you know
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.
Spectral Matching With an LED-Based Spectrally Tunable Light Source
Published
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
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 April 26, 2024)