Recorders – Combined with non-recording indicator or alarm
Patent
1975-08-11
1976-06-01
Hartary, Joseph W.
Recorders
Combined with non-recording indicator or alarm
346 76L, 350152, 350173, 353 20, 353 82, 353121, G01D 932
Patent
active
039613348
ABSTRACT:
A high-speed, permanent recording, multicolor projection display system in which the beam of a pulsed Argon laser is selectively deflected and focused to burn the desired images in a metalized film record medium which is back-illuminated for projecting the recorded images as they are produced. A channel selector polarizes the laser beam in either of two planes; each polarized channel is then selectively deflected and is focused through a dichroic/polarizer cube that transmits one channel and reflects the other channel to the metalized films in the focal planes where images are formed by the thermal action. Simultaneously with the recording action, the images are projected by the use of white light that is split into two colored light beams by a second dichroic cube and is reflected to backlight the images in each of the metalized films. The projected beams then pass back through the first dichroic cube where they either pass directly, as colored images, to the projection lens system, or are combined into white images before entering the projection lens system. Colored filters may be inserted into either or both of the projection lamp beams to produce various colored images.
REFERENCES:
patent: 2161126 (1939-06-01), Bigley
patent: 3181170 (1965-04-01), Akin
patent: 3704934 (1972-12-01), Holmes
Whitby Clyde M.
White Douglas L.
Bell Edward L.
Castle Linval B.
Dwyer Joseph R.
Hartary Joseph W.
The Singer Company
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