Details

Autor(en) / Beteiligte

• Ito, Yasuyuki
• Saruta, Kunihiko
• Kasai, Hiroto
• Nshida, Masato
• Yamaguchi, Masanari
• Yamashita, Keitaro
• Taguchi, Ayumu
• Oniki, Kazunao
• Tamada, Hitoshi

Titel

Blazed $GxL^{TM}$ Device for Laser Dream Theatre at the Aichi Expo 2005

Ist Teil von

• Journal of Information Display, 2007, Vol.8 (2), p.10-14

Erscheinungsjahr

2007

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A blazed $GxL^{TM}$ device is described as having high optical efficiency (> 70% for RGB lasers), and high contrast ratio (> 10,000:1), and that is highly reliable when used in a large-area laser projection system. It has a robust design and precise stress control technology to maintain a uniform shape (bow and tilt) of more than 6,000 ribbons, a $0.25-{\mu}m$ CMOS compatible fabrication processing and planarization techniques to reduce fluctuation of the ribbons, and a reliable Al-Cu reflective film that provided protection against a high-power laser. No degradation in characteristics of the GxL device is observed after operating a 5,000- lumen projector for 2,000 hours and conducting 2,000 temperature cycling tests at $-20^{\circ}C$ and $+80^{\circ}C$. At the 2005 World Exposition in Aichi, Japan the world's largest laser projection screen with a size of 2005 inches (10 m ${\times}$ 50 m) and 6 million pixels (1,080 ${\times}$ 5,760) was demonstrated.