Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1982-01-07
1984-09-25
Chin, Tommy P.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 64, H04N 931
Patent
active
044738404
ABSTRACT:
A projection television apparatus having three monochromatic cathode-ray tubes, a mirror block and a lens. The three cathode-ray tubes which display red, green and blue images, respectively are placed to form the letter "T" with their faceplates facing each other. The mirror block consists of two dichroic mirrors intersecting to form the letter "X". Red, green and blue images from the three cathode-ray tubes are combined into one color image by the mirror block, and the resulting color image is enlarged and projected on the screen by a single lens. It is possible for the mirror block to be moved linearly in one direction without rotation. The focus adjustment of the projected image on the screen may be carried out by moving both the mirror block and the lens without moving the cathode-ray tubes.
REFERENCES:
patent: 2590240 (1952-03-01), Epstein
patent: 2642487 (1953-06-01), Schroeder
patent: 2965706 (1960-12-01), Ridgeway
patent: 2973683 (1961-03-01), Rowe
patent: 3009015 (1961-11-01), Bailey
patent: 4151554 (1979-04-01), Tucker
patent: 4300156 (1981-11-01), Boyd
patent: 4400722 (1983-08-01), Miyatake
Chin Tommy P.
Matsushita Electric - Industrial Co., Ltd.
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