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Speckle-Free Phosphor-Scattered Blue Light Emitted out of InGaN/GaN Laser Diode with Broadened Spectral Behavior for High Luminance White Lamp Applications
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Summary :
Ultra-high luminance lamps emitting white light with a well-scattered blue spectrum from InGaN/GaN laser diodes and a phosphor-converted yellow spectrum show speckle contrast values as low as LED. Spectral behavior of the laser diodes is analyzed to find the reason why such low values are obtained. As a result, the PWM-driven, multi-longitudinal mode with dynamically broadened line-width is found to have a great effect on reducing speckle contrast. Despite using the lasers, such speckle-free lamps are considered to be very suitable for high-luminance and other various lighting applications.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E96-C No.11 pp.1391-1398
- Publication Date
- 2013/11/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E96.C.1391
- Type of Manuscript
- Special Section INVITED PAPER (Special Section on Electronic Displays)
- Category
Authors
Junichi KINOSHITA
Toshiba Lighting & Technology Corp.
Yoshihisa IKEDA
Toshiba Lighting & Technology Corp.
Yuji TAKEDA
Toshiba Lighting & Technology Corp.
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Junichi KINOSHITA, Yoshihisa IKEDA, Yuji TAKEDA, "Speckle-Free Phosphor-Scattered Blue Light Emitted out of InGaN/GaN Laser Diode with Broadened Spectral Behavior for High Luminance White Lamp Applications" in IEICE TRANSACTIONS on Electronics,
vol. E96-C, no. 11, pp. 1391-1398, November 2013, doi: 10.1587/transele.E96.C.1391.
Abstract: Ultra-high luminance lamps emitting white light with a well-scattered blue spectrum from InGaN/GaN laser diodes and a phosphor-converted yellow spectrum show speckle contrast values as low as LED. Spectral behavior of the laser diodes is analyzed to find the reason why such low values are obtained. As a result, the PWM-driven, multi-longitudinal mode with dynamically broadened line-width is found to have a great effect on reducing speckle contrast. Despite using the lasers, such speckle-free lamps are considered to be very suitable for high-luminance and other various lighting applications.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E96.C.1391/_p
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@ARTICLE{e96-c_11_1391,
author={Junichi KINOSHITA, Yoshihisa IKEDA, Yuji TAKEDA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Speckle-Free Phosphor-Scattered Blue Light Emitted out of InGaN/GaN Laser Diode with Broadened Spectral Behavior for High Luminance White Lamp Applications},
year={2013},
volume={E96-C},
number={11},
pages={1391-1398},
abstract={Ultra-high luminance lamps emitting white light with a well-scattered blue spectrum from InGaN/GaN laser diodes and a phosphor-converted yellow spectrum show speckle contrast values as low as LED. Spectral behavior of the laser diodes is analyzed to find the reason why such low values are obtained. As a result, the PWM-driven, multi-longitudinal mode with dynamically broadened line-width is found to have a great effect on reducing speckle contrast. Despite using the lasers, such speckle-free lamps are considered to be very suitable for high-luminance and other various lighting applications.},
keywords={},
doi={10.1587/transele.E96.C.1391},
ISSN={1745-1353},
month={November},}
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TY - JOUR
TI - Speckle-Free Phosphor-Scattered Blue Light Emitted out of InGaN/GaN Laser Diode with Broadened Spectral Behavior for High Luminance White Lamp Applications
T2 - IEICE TRANSACTIONS on Electronics
SP - 1391
EP - 1398
AU - Junichi KINOSHITA
AU - Yoshihisa IKEDA
AU - Yuji TAKEDA
PY - 2013
DO - 10.1587/transele.E96.C.1391
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E96-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2013
AB - Ultra-high luminance lamps emitting white light with a well-scattered blue spectrum from InGaN/GaN laser diodes and a phosphor-converted yellow spectrum show speckle contrast values as low as LED. Spectral behavior of the laser diodes is analyzed to find the reason why such low values are obtained. As a result, the PWM-driven, multi-longitudinal mode with dynamically broadened line-width is found to have a great effect on reducing speckle contrast. Despite using the lasers, such speckle-free lamps are considered to be very suitable for high-luminance and other various lighting applications.
ER -
English
