Wide screen image projection apparatus

Details Wide screen image projection apparatus Wide screen image projection apparatus

1981-11-16

1983-05-24

Martin, John C.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358180, 358214, H04N 574, H04N 322, H04N 336

Patent

active

043853242

ABSTRACT:
An image display apparatus having a cathode ray tube with a deflection device, a projection screen and a projection lens projecting an image from the picture screen of the cathode ray tube onto the projection screen, is further provided with a deflection width control device which changes a dimension particularly the width of the cathode ray tube raster, in response to a change in the type of a television signal supplied to the tube.

REFERENCES:
patent: 3097262 (1963-07-01), Ehrenhaft
patent: 4028726 (1977-06-01), Argy
patent: 4037250 (1977-07-01), McGahan

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