Health Lighting Research Based on Mixing White LEDs of High Color Rendering Index
HUANG Ting
GUO Zhenning
LIN Jjieben
Abstract：The color temperature ( TC ) , color rendering index ( Ra ) and blue light hazard ( LB ) were analyzed by experiments and theories after mixing low color temperature and high color index white LEDs with different color temperatures. We have further researched the change of blue light hazard ( LB ) under the condition of different current. We adopt the method of mixing three different low color temperature (2 200 K, 2 700 K, 4 000 K) white LEDs, in the same time, we observed and recorded the change of the color rendering index and the lighting effect. Than we could calculate the changes of blue light hazard (LB) through writing a MATLAB program. The results of experiment and simulation show that, we can obtain the high quality white LEDs of high color Rendering Index ( Ra12、13、23 > 95 ) and low-blue light hazard. It also can meet the demand of healthy lighting.
Keywords：white LEDscolor rendering indexblue light hazardhealthy lighting
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 94-99 )