New scheme of a highly-reliable glass-based color wheel for next-generation laser light engine

A new scheme of a highly-reliable glass-based color wheel applied to a laser light engine (LLE) for a high-power laser operation is demonstrated for the first time. The glass-based color wheel showed better thermal stability than the silicone-based color wheel, about 13.6 times less lumen loss and 3...

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Bibliographic Details
Published in:Optical materials express 2017-03, Vol.7 (3), p.1029-1034
Main Authors: Chang, Yung-Peng, Chang, Jin-Kai, Cheng, Wei-Chih, Kuo, Yi-Yin, Liu, Chun-Nien, Chen, Li-Yin, Cheng, Wood-Hi
Format: Article
Language:English
Subjects:
Color
Engines
Lasers
Lumens
Projectors
Reliability
Thermal stability
Wheels
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Summary:A new scheme of a highly-reliable glass-based color wheel applied to a laser light engine (LLE) for a high-power laser operation is demonstrated for the first time. The glass-based color wheel showed better thermal stability than the silicone-based color wheel, about 13.6 times less lumen loss and 3 times less chromaticity shift after being operated under a 30 Wopt laser for 2000 hours, respectively. The excellent thermal stability can be attributed to the high glass transition temperature up to 570 [degrees]C exhibited by the glass-based color wheel. The easy fabrication and the good reliability on optical performance under thermal stress benefit the novel glass-based color wheels as promising candidates to replace the silicone-based color wheels in the LLE modules for the next-generation laser projector.
ISSN:2159-3930
2159-3930
DOI:10.1364/OME.7.001029