Spectrum optimization of bi-color and tri-color phosphor-converted white LEDs in neutral correlated color temperature system

CORC > 厦门大学 > 物理技术－已发表论文

	Spectrum optimization of bi-color and tri-color phosphor-converted white LEDs in neutral correlated color temperature system
	Dai, Shu-Chun ; Guo, Zi-Quan ; Lv, Yi-Jun ; Chen, Zhong ; Dai SC(戴树春) ; Chen Z(陈忠)
刊名	http://dx.doi.org/10.3788/fgxb20123308.0873
	2012
关键词	Energy dissipation Light emission Luminance Optimization Phosphors Spectroscopy
英文摘要	The spectra of the bi-color and tri-color phosphor-converted white LED were optimized in the neutral correlated color temperature of 4 870 K with consideration of Stokes shift energy loss. The results showed that a high luminous efficacy of radiation up to 483 lm/W could be attained in the case of the white LED composed of blue chip and YAG phosphor but with a poor color quality and 83.9% Stokes efficiency. When a narrow-band red phosphor or LED chip was added to the bi-color white LED, a good color rendering index of 94.7 was gained with a reduced luminous efficacy of radiation 343 lm/W and a Stokes efficiency of 84.4%. Later, we characterized the performance of tunable-color-temperature tri-color white LED. It was found that the color rendering index was better when the correlated color temperature exceeded 4 000 K.
语种	英语
出版者	Chines Academy of Sciences
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/92148]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Dai, Shu-Chun,Guo, Zi-Quan,Lv, Yi-Jun,et al. Spectrum optimization of bi-color and tri-color phosphor-converted white LEDs in neutral correlated color temperature system[J]. http://dx.doi.org/10.3788/fgxb20123308.0873,2012.
APA	Dai, Shu-Chun,Guo, Zi-Quan,Lv, Yi-Jun,Chen, Zhong,戴树春,&陈忠.(2012).Spectrum optimization of bi-color and tri-color phosphor-converted white LEDs in neutral correlated color temperature system.http://dx.doi.org/10.3788/fgxb20123308.0873.
MLA	Dai, Shu-Chun,et al."Spectrum optimization of bi-color and tri-color phosphor-converted white LEDs in neutral correlated color temperature system".http://dx.doi.org/10.3788/fgxb20123308.0873 (2012).