Presentation | 2001/1/18 Luminescence Characteristics of Modulated White Light Emitting Diode Noboru Izuhara, Tatsuo Shiina, Masafumi Ito, Yasuyuki Okamura, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | When a white light emitting diode(LED) is modulated, there is a time lag between the blue and the yellow light. This study revealed the luminescence characteristics of the modulated white-LED and the change of its spectrum. The white-LED was modulated with pulse, trigger, ramp, and sinusoidal waves. When a pulse width was 500ns, the blue, the white, and the yellow lights appeared sequentially. When a pulse width was 60ns, the white, the yellow lights appeared sequentially. In addition, the blue, the yellow, and the white appeared well by trigger, ramp, sinusoidal wave modulations, respectively. We found that the white-LED can change the luminescence ratio of the blue to the yellow with the modulation frequencies and its shape. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | white-LED / pulse / trigger / ramp / sinusoidal / modulation |
Paper # | PS2000-63,OFT2000-73,OPE2000-125,LQE2000-106 |
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Conference Information | |
Committee | LQE |
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Conference Date | 2001/1/18(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Lasers and Quantum Electronics (LQE) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Luminescence Characteristics of Modulated White Light Emitting Diode |
Sub Title (in English) | |
Keyword(1) | white-LED |
Keyword(2) | pulse |
Keyword(3) | trigger |
Keyword(4) | ramp |
Keyword(5) | sinusoidal |
Keyword(6) | modulation |
1st Author's Name | Noboru Izuhara |
1st Author's Affiliation | Department of Opto-Mechatronics, Faculty of Systems Engineering, Wakayama University() |
2nd Author's Name | Tatsuo Shiina |
2nd Author's Affiliation | Department of Opto-Mechatronics, Faculty of Systems Engineering, Wakayama University |
3rd Author's Name | Masafumi Ito |
3rd Author's Affiliation | Department of Opto-Mechatronics, Faculty of Systems Engineering, Wakayama University |
4th Author's Name | Yasuyuki Okamura |
4th Author's Affiliation | Department of Opto-Mechatronics, Faculty of Systems Engineering, Wakayama University |
Date | 2001/1/18 |
Paper # | PS2000-63,OFT2000-73,OPE2000-125,LQE2000-106 |
Volume (vol) | vol.100 |
Number (no) | 592 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |