Industry Patents

Patent: 7227634

Method For Controlling The Luminous Flux Spectrum of a Lighting Fixture

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Patent Number: 7227634 
Title: Method For Controlling The Luminous Flux Spectrum of a Lighting Fixture 
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.  
Country of Issue: US 
First Named Inventor: Cunningham 
Assignee:  
Continuation or Divisional of: 7023543 
International Classification: G01J 3/00 
US Classification: 356/300 
Issue Date: 06-05-2007 
Filing Date: 06-06-2005 
Application : 11/146479 
Notes:  
Link to Patent at freepatentsonline.com: 7227634 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 7227634 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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