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High‐pixel‐rate grating‐light‐valve laser projector
Author(s) -
Kikuchi Hiroki,
Hashimoto Shigeki,
Tajiri Shinichiro,
Hayashi Tsuneo,
Sugawara Yutaka,
Oka Michio,
Akiyama Yoshiyuki,
Nakamura Akira,
Eguchi Naoya
Publication year - 2009
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid17.3.263
Subject(s) - projector , grating , optics , digital light processing , gamut , speckle pattern , pixel , laser , speckle noise , materials science , frame rate , projection (relational algebra) , computer science , physics , algorithm
Abstract— A high‐pixel‐rate, high‐contrast (30,000:1) wide‐color‐gamut grating‐light‐valve laser projector is reported. A new optical engine enabling high‐frame‐rate (240 Hz) scan projection is employed. Panoramic wide‐angle‐scan projection with a 64:9 aspect ratio was also developed. Speckle noise is eliminated using a simple but highly efficient technique. The optical throughput efficiency of the grating‐light‐valve laser projector is reviewed.