Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes

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	Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes
	Guo, Zi-Quan ; Shih, Tien- ; Lu, Yi-Jun ; Gao, Yu-Lin ; Zhu, Li-Hong ; Chen, Guo-Long ; Zhang, Ji-Hong ; Lin, Si-Qi ; Chen, Zhong ; Gao YL(高玉琳) ; Zhu LH(朱丽虹) ; Chen GL(陈国龙) ; Zhang JH(张继红) ; Chen Z(陈忠)
刊名	http://dx.doi.org/10.1109/JPHOT.2013.2273736
	2013
关键词	Color Color image processing Diodes Energy utilization Optimization Sounding apparatus
英文摘要	Three-and four-hump InGaN-based white light-emitting diodes (LEDs) have been computationally investigated. The investigation includes three-hump LEDs precoated with green-and red-emitting quantum dots (QDs) and four-hump LEDs precoated with green-, yellow-, and red-emitting QDs. Results show scotopic/photopic (S/P) ratios > 3.80 and color rendering indices (CRIs) ≥ 70 for three-hump LEDs and S/P ratios > 3.90 and CRIs ≥ 70 for four-hump LEDs under a correlated color temperature (CCT) of 45 000 K. Furthermore, for both three-and four-hump LEDs under the condition of CCT > 5000 K, optimal results in this paper exhibit capabilities of exceeding S/P = 2.50 and simultaneously satisfying the criterion of CRI ≥ 70. Our simulation procedure is conducted under variations of nine CCTs, several wavelengths, and peak heights. Optimized results of S/P ratios and CRIs are identified and retained through filtering off a great number of unqualified candidates. Finally, present findings may help improve the quality of eye visions pertaining to LED illumination and help reduce the electrical energy consumption related to LED usage. ? 2009-2012 IEEE.
语种	英语
出版者	Institute of Electrical and Electronics Engineers Inc.
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/91962]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Guo, Zi-Quan,Shih, Tien-,Lu, Yi-Jun,et al. Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes[J]. http://dx.doi.org/10.1109/JPHOT.2013.2273736,2013.
APA	Guo, Zi-Quan.,Shih, Tien-.,Lu, Yi-Jun.,Gao, Yu-Lin.,Zhu, Li-Hong.,...&陈忠.(2013).Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes.http://dx.doi.org/10.1109/JPHOT.2013.2273736.
MLA	Guo, Zi-Quan,et al."Studies of scotopic/photopic ratios for color-tunable white light-emitting diodes".http://dx.doi.org/10.1109/JPHOT.2013.2273736 (2013).