Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1992-06-08
1994-03-15
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 36, 359 83, 355 38, 355326R, 355327, 346160, G02F 11335, G02F 11333, G03B 2780, G01D 900
Patent
active
052950069
ABSTRACT:
An exposure system for a color video printer capable of obtaining a uniform exposing to liquid crystal display panels for red, green and blue colors by common use of a light source being movably disposed. The exposure system includes liquid crystal display panels for red, green and blue colors disposed at an upper portion of a casing so as light being incident thereupon not to be interfered with each other, a light source for illuminating the liquid crystal display panels, a light source supporting and light-reflecting member being movable in the casing for containing the light source therein and reflecting the light toward only a desired panel, and a driving member for moving right and left the light source supporting and light-reflecting member.
REFERENCES:
patent: 3574456 (1971-04-01), Grace
patent: 3936172 (1976-02-01), McVeigh
patent: 5047789 (1991-09-01), Kanayama et al.
patent: 5105281 (1992-04-01), Kusaka
patent: 5115270 (1992-05-01), Kraft et al.
patent: 5144464 (1992-09-01), Ohnishi et al.
Goldstar Co. Ltd.
Gross Anita Pellman
Sikes William L.
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