Document Detail


Uniform illumination design by configuration of LEDs and optimization of LED lens for large-scale color-mixing applications.
MedLine Citation:
PMID:  23759848     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
In many applications, the emitting light from light-emitting diodes (LEDs) with different colors needs to be mixed together on a large-scale plane, and this illumination mode is usually generated with a diffuser. Abandoning the traditional methods, we proposed an LED color-mixing method that can produce both high color uniformity and irradiance uniformity illumination. This method is composed of two main aspects: arrangement of the irradiance array and design of the LED lens. With this method, an independent rectangular irradiance distribution is generated by each lens unit, and the large-scale color uniform illumination is obtained by arraying the irradiance distribution. A 3×3 array of LED module units consisting of 36 LED lens units with four different colors is designed, and a desired result with high color uniformity is obtained.
Authors:
Peng Liu; Huihui Wang; Rengmao Wu; Yang Yang; Yaqin Zhang; Zhenrong Zheng; Haifeng Li; Xu Liu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  52     ISSN:  1539-4522     ISO Abbreviation:  Appl Opt     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-06-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3998-4005     Citation Subset:  IM    
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