Industry Patents

Patent: 12177948

Method for Adjusting Color Rendering Index of Light Source and Stage Light Fixture Using Same

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Patent Number: 12177948 
Title: Method for Adjusting Color Rendering Index of Light Source and Stage Light Fixture Using Same 
Abstract: A method for adjusting color rendering index of a light source and a stage light fixture are provided. The light source has a first LED chip set with a first color rendering index and a second LED chip set with a second color rendering index. The range of chromaticity differences of a target spectrum and color differences of 14 Munsell color samples of the target spectrum are defined according to a target spectral power distribution of a reference light source under a target color rending index and a target color temperature. The light intensity control parameter K1, K2 of the first LED chip set and the second LED chip set are adjusted, and a relative spectral power distribution of synthesized lighting of the controlled light source is calculated to search for values of K1 and K2 enabling the relative spectral power distribution to fall within the range. 
Country of Issue: US 
First Named Inventor: Jiang 
Assignee: Guangzhou Haoyang Electronic Co. (Golden Sea) 
Continuation or Divisional of:  
International Classification: H05B 45/18 
US Classification: H05B 45/18 
Issue Date: 12-24-2024 
Filing Date: 02-28-2023 
Application : 18/176317 
Notes:  
Link to Patent at freepatentsonline.com: 12177948 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 12177948 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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