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P‐206L: Late‐News Poster : Low Electric Consumption 3.6W Green SHG Laser Light Source Applicable to Laser Projection Systems
Author(s) -
Furuya Hiroyuki,
Mizushima Tetsuro,
Mizuuchi Kiminori,
Morikawa Akihiro,
Itoh Tatsuo,
Shikii Shinichi,
Yamamoto Kazuhisa,
Kadowaki Shinichi,
Hiratsuka Takashige,
Takagi Susumu,
Mizoh Yoshiaki
Publication year - 2007
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.2785457
Subject(s) - laser , optics , projection (relational algebra) , ntsc , gamut , materials science , optoelectronics , physics , computer science , telecommunications , high definition television , algorithm
Highly‐efficient fully air‐cooled green laser light source with frequency doubling module is reported. As a result, 3.6 watts green laser light generation with about 9% wall‐plug efficiency is achieved. By using fully air‐cooled RGB lasers including the green SHG (Second Harmonic Generation) laser and illumination optics for speckle noise reduction, a laser projection engine is prototyped. A laser rear‐projection system with this laser projection engine shows several merits; wide color gamut (133%NTSC), 61inch large screen size, and low electric power consumption (less than 100W, at 650cd/m 2 ).