Red-Enhanced White-Light-Emitting Diode Using a New Red Phosphor
スポンサーリンク
概要
- 論文の詳細を見る
We fabricated a high-color-rendering, red-enhanced white-light-emitting diode (LED) using a new red phosphor and a short-wavelength YAG phosphor. When the new white-LED was operated at a forward-bias current of 20 mA at room temperature (RT), color temperature ($T_{\text{cp}}$), the general color rendering index ($R_{\text{a}}$) and luminous efficiency were 4670 K, 87.7 and 25.5 lm/W, respectively. Most of the color-rendering indexes (CRIs) of the new white-LED were larger than those of current white-LEDs, in which only YAG is used. In particular, the CRI-No.9 value, which shows the color reproduction in the red region, is improved from $-2.5$ to 62.6.
- 2003-01-15
著者
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Mukai Takashi
Department Of Nitride Semiconductor Research Laboratory Optoelectronics Products Division Nichia Cor
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Naitou Takahiro
Advanced Led Development Center Optoelectronics Products Division Nichia Corporation
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Izuno Kunihiro
Advanced Led Development Center Nichia Corporation
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Yamada Motokazu
Advanced Led Development Center Optoelectronics Products Division Nichia Corporation
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Naitou Takahiro
Advanced LED Development Center, Optoelectronics Products Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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Yamada Motokazu
Advanced LED Development Center, Optoelectronics Products Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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Tamaki Hiroto
R&D Department, Phosphors and Finechemicals Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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Murazaki Yoshinori
R&D Department, Phosphors and Finechemicals Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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Kameshima Masatoshi
R&D Department, Phosphors and Finechemicals Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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Murazaki Yoshinori
R&D Department, Phosphors and Finechemicals Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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Kameshima Masatoshi
R&D Department, Phosphors and Finechemicals Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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Mukai Takashi
Department of Nitride Semiconductor Research Laboratory, Optoelectronics Products Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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Tamaki Hiroto
R&D Department, Phosphors and Finechemicals Division, Nichia Corporation, 491 Oka, Kaminaka, Anan, Tokushima 774-8601, Japan
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