Method for controlling the luminous flux spectrum of a...

Details Method for controlling the luminous flux spectrum of a... Method for controlling the luminous flux spectrum of a...

2006-04-04

2006-04-04

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

C315S312000, C362S227000

Reexamination Certificate

active

07023543

ABSTRACT:
A method is disclosed for controlling a lighting fixture of a kind having individually colored light sources, e.g., LEDs, that emit light having a distinct luminous flux spectrum that varies in its initial spectral composition, that varies with temperature, and that degrades over time. The method controls such fixture so that it projects light having a predetermined desired flux spectrum despite variations in initial spectral characteristics, despite variations in temperature, and despite flux degradations over time.

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patent: WO 01/36864 (2001-05-01), None

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