Industry Patents

Patent: 10004126

Lighting-System Color-Shift Detection and Correction

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Patent Number: 10004126 
Title: Lighting-System Color-Shift Detection and Correction 
Abstract:

In a lighting system that emits light of a color within a color specification, the color is controlled by adding light from a single color-correcting light emitting device (light-emitting device) to a primary light-emitting device. In an illustrative embodiment, a color-detecting module can sense the color of the combined light emitted from both the primary and the color-correcting light-emitting devices. The color-control system can generate an amplitude control signal based on a signal indicative of the color sensed by the color-detecting module. A color range of the combined light of the primary and the color-correcting light-emitting devices can intersect a domain of the predetermined color specification, as the generated amplitude control signal spans the domain. Using a single color-correcting light-emitting device to maintain a lighting system's emitted color within a predetermined color specification can advantageously reduce system complexity.  

Country of Issue: US 
First Named Inventor: Lapujade 
Assignee: Goodrich Lighting Systems 
Continuation or Divisional of:  
International Classification: H05B 33/08 
US Classification: H05B 37/0227 
Issue Date: 06-19-2018 
Filing Date: 06-22-2015 
Application : 14/746122 
Notes:  
Link to Patent at freepatentsonline.com: 10004126 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 10004126 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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