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12.2: Distinguished Paper: Super‐short Focus Front Projector with Aspheric Mirror Projection Optical System
Author(s) -
Ogawa Jun,
Agata Kazuhiro,
Sakamoto Mikio,
Urano Kunihiko,
Matsumoto Takayuki
Publication year - 2004
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 - 10.1889/1.1821381
Subject(s) - projector , projection (relational algebra) , optics , focus (optics) , front (military) , computer science , computer graphics (images) , contrast (vision) , physics , algorithm , meteorology
We have developed a new front projector with a super‐short projection distance of 0.65 m at 100″. We installed a newly developed reflective‐type projection optical system in this projector, which was composed of only four aspheric mirrors that were free of color aberrations. Using this new system and a single‐chip DMD™*, we projected a picture that had excellent sharpness and high contrast from 40″–100″. This paper describes the principles, design, and characteristics of the new WT600™ front projector.