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Author:

Zhang, Lei (Zhang, Lei.) | Guo, Xia (Guo, Xia.) (Scholars:郭霞) | Shen, Guangdi (Shen, Guangdi.) | Liu, Shiwen (Liu, Shiwen.) | Liang, Ting (Liang, Ting.) | Wang, Hui (Wang, Hui.)

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EI Scopus PKU CSCD

Abstract:

According to colorimetry, the matching principle of white LED based on two primary color LEDs is introduced; Using color matching calculation, the coverage of the primary color LED's chromaticity coordinate and the coverage of the ratio of the primary LED are determined. Luminous efficacy and color rendering of white LED based on two color LEDs are discussed and analyzed. White LEDs based on two primary color LEDs have the maximal luminous efficacy, but their color rendering are very poor, white LEDs based on primary LEDs with dominant wavelengths about 450 nm and 572 nm have the maximal k, 400 lm/W, which is approaching the theoretic maximum of equality energy white point. White LEDs with dominant wavelengths about 480 nm and 580 nm have the maximal Ra, 16.2.

Keyword:

Colorimetry Color matching Calculations Light emitting diodes

Author Community:

  • [ 1 ] [Zhang, Lei]Opto-electronic Technology Laboratory, Beijing University of Technology, Beijing 100022, China
  • [ 2 ] [Guo, Xia]Opto-electronic Technology Laboratory, Beijing University of Technology, Beijing 100022, China
  • [ 3 ] [Shen, Guangdi]Opto-electronic Technology Laboratory, Beijing University of Technology, Beijing 100022, China
  • [ 4 ] [Liu, Shiwen]Opto-electronic Technology Laboratory, Beijing University of Technology, Beijing 100022, China
  • [ 5 ] [Liang, Ting]Opto-electronic Technology Laboratory, Beijing University of Technology, Beijing 100022, China
  • [ 6 ] [Wang, Hui]Opto-electronic Technology Laboratory, Beijing University of Technology, Beijing 100022, China

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Source :

Research and Progress of Solid State Electronics

ISSN: 1000-3819

Year: 2007

Issue: 4

Volume: 27

Page: 567-571

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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