多基色白光LED的配色研究

Study on Color Matching of Multi chromatic White LED

摘要:

利用基色光混色的方法对三基色和四基色白光LED进行了配色研究。固定相关色温为(5500±20)K的条件下，在可见光范围内将不同峰值波长、半宽的基色光进行混色，得到显色指数和光视效能与峰值波长和半宽的关系。其中，三、四基色白光LED的显色指数最高分别达到89和96.7，对应的光视效能分别为353lm/W和340lm/W。同时，计算结果表明，增加基色光的数目后，提高了白光LED的显色性及显色稳定性。

Abstract:

The color matching of tri chromatic and tetra chromatic white LEDs was designed according to mixing primary colors. In the condition of correlated color temperature of (5500±20)K, the relationship of the color rendering index and luminous efficiency of radiation with the peak emission wavelength and spectral width was obtained in the region of visible light with mixing multiple primary colors. The maximum color rendering index value of tri chromatic and tetra chromatic white LEDs is respectively 89 and 96.7, corresponding to luminous efficiency of radiation value of 353lm/W and 340lm/W. And the simulation results indicate that both the color rendering and its stability are improved by adding the number of primary colors.