Industry Patents

Patent: 7212287

Providing Optical Feedback on Light Color

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Patent Number: 7212287 
Title: Providing Optical Feedback on Light Color 
Abstract: Optical feedback for controlling color of light from a light source is provided. Incident optical energy of the light is detected as a function of discrete steps of wavelength. For each discrete step of wavelength, an X, Y and Z tristimulus subvalue is produced. All the X, Y and Z tristimulus subvalues for all the discrete steps are summed together to produce an X, Y and Z tristimulus value for the light. The X, Y and Z tristimulus values are used as feedback in controlling color of the light generated by the light source.  
Country of Issue: US 
First Named Inventor: Jaffar, Lim, Lee 
Assignee: Avago Technologies 
Continuation or Divisional of:  
International Classification: G01N 21/25 
US Classification: 356/405 
Issue Date: 05-01-2007 
Filing Date: 08-05-2004 
Application : 10/912394 
Notes:  
Link to Patent at freepatentsonline.com: 7212287 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 7212287 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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