n-UV+blue/green/red white light emitting diode lamps

Cheng-Huang Kuo; Jinn Kong Sheu; Shoou Jinn Chang; Yan Kuin Su; Liang Wen Wu; Ji Ming Tsai; C. H. Liu; R. K. Wu

doi:10.1143/JJAP.42.2284

n-UV+blue/green/red white light emitting diode lamps

Cheng-Huang Kuo^*, Jinn Kong Sheu, Shoou Jinn Chang, Yan Kuin Su, Liang Wen Wu, Ji Ming Tsai, C. H. Liu, R. K. Wu

^*此作品的通信作者

照明與能源光電研究所

研究成果: Article › 同行評審

114 引文斯高帕斯（Scopus）

摘要

Phosphor-conversion light-emitting diode (LED) lamps were fabricated by precoating blue/green/red phosphors onto near-ultraviolet (n-UV) LED chips prior to packaging them into LED lamps. With a 20 mA injection current, it was found that the color temperature, T_c, was approximately 5900 K, the color rendering index, R_a, was approximately 75, and the CIE color coordinates were x = 0.33 and y = 0.35 for the "n-UV+blue/green/red" white LED lamps. No obvious changes in color temperature, T_c, or color-rendering index, R_a, could be observed when we increased the injection from 20 mA to 60 mA. These results indicate that such "n-UV+blue/green/red" white LED lamps are much more optically stable than the conventional "blue+yellow" LED lamps.

原文	English
頁（從 - 到）	2284-2287
頁數	4
期刊	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
卷	42
發行號	4 B
DOIs	https://doi.org/10.1143/JJAP.42.2284
出版狀態	Published - 4月 2003

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10.1143/JJAP.42.2284

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@article{16a9c91bc65f46749d1015e4cb7739da,

title = "n-UV+blue/green/red white light emitting diode lamps",

abstract = "Phosphor-conversion light-emitting diode (LED) lamps were fabricated by precoating blue/green/red phosphors onto near-ultraviolet (n-UV) LED chips prior to packaging them into LED lamps. With a 20 mA injection current, it was found that the color temperature, Tc, was approximately 5900 K, the color rendering index, Ra, was approximately 75, and the CIE color coordinates were x = 0.33 and y = 0.35 for the {"}n-UV+blue/green/red{"} white LED lamps. No obvious changes in color temperature, Tc, or color-rendering index, Ra, could be observed when we increased the injection from 20 mA to 60 mA. These results indicate that such {"}n-UV+blue/green/red{"} white LED lamps are much more optically stable than the conventional {"}blue+yellow{"} LED lamps.",

keywords = "Color temperature, Color-rendering index, LED, Phosphor, White light",

author = "Cheng-Huang Kuo and Sheu, {Jinn Kong} and Chang, {Shoou Jinn} and Su, {Yan Kuin} and Wu, {Liang Wen} and Tsai, {Ji Ming} and Liu, {C. H.} and Wu, {R. K.}",

year = "2003",

month = apr,

doi = "10.1143/JJAP.42.2284",

language = "English",

volume = "42",

pages = "2284--2287",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers",

issn = "0021-4922",

publisher = "Japan Society of Applied Physics",

number = "4 B",

}

TY - JOUR

T1 - n-UV+blue/green/red white light emitting diode lamps

AU - Kuo, Cheng-Huang

AU - Sheu, Jinn Kong

AU - Chang, Shoou Jinn

AU - Su, Yan Kuin

AU - Wu, Liang Wen

AU - Tsai, Ji Ming

AU - Liu, C. H.

AU - Wu, R. K.

PY - 2003/4

Y1 - 2003/4

N2 - Phosphor-conversion light-emitting diode (LED) lamps were fabricated by precoating blue/green/red phosphors onto near-ultraviolet (n-UV) LED chips prior to packaging them into LED lamps. With a 20 mA injection current, it was found that the color temperature, Tc, was approximately 5900 K, the color rendering index, Ra, was approximately 75, and the CIE color coordinates were x = 0.33 and y = 0.35 for the "n-UV+blue/green/red" white LED lamps. No obvious changes in color temperature, Tc, or color-rendering index, Ra, could be observed when we increased the injection from 20 mA to 60 mA. These results indicate that such "n-UV+blue/green/red" white LED lamps are much more optically stable than the conventional "blue+yellow" LED lamps.

AB - Phosphor-conversion light-emitting diode (LED) lamps were fabricated by precoating blue/green/red phosphors onto near-ultraviolet (n-UV) LED chips prior to packaging them into LED lamps. With a 20 mA injection current, it was found that the color temperature, Tc, was approximately 5900 K, the color rendering index, Ra, was approximately 75, and the CIE color coordinates were x = 0.33 and y = 0.35 for the "n-UV+blue/green/red" white LED lamps. No obvious changes in color temperature, Tc, or color-rendering index, Ra, could be observed when we increased the injection from 20 mA to 60 mA. These results indicate that such "n-UV+blue/green/red" white LED lamps are much more optically stable than the conventional "blue+yellow" LED lamps.

KW - Color temperature

KW - Color-rendering index

KW - LED

KW - Phosphor

KW - White light

UR - http://www.scopus.com/inward/record.url?scp=0038009783&partnerID=8YFLogxK

U2 - 10.1143/JJAP.42.2284

DO - 10.1143/JJAP.42.2284

M3 - Article

AN - SCOPUS:0038009783

SN - 0021-4922

VL - 42

SP - 2284

EP - 2287

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers

IS - 4 B

ER -

n-UV+blue/green/red white light emitting diode lamps

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