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4385259 |
Dynamic convergence control apparatus for shadow mask CRT displays
An apparatus for providing precise convergence compensation in a shadow mask type color CRT display. Coarse compensation is provided by the coefficients of primary terms x 2 , y 2 of the beam's...
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4354143 |
Equipment to correct aberrations of a cathode ray beam
Aberrations of an electron beam are corrected as the beam is scanned across the screen of a cathode ray tube by deriving correction signals from stored digital values by means of the calculus of...
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4203051 |
Cathode ray tube apparatus
A three color gun cathode ray tube has convergence correction signals derived from digital signals stored in a digital data store. The screen of the tube is divided into a plurality of areas and a...
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4095137 |
Digital convergence system for a multi-gun CRT
A convergence correction system is disclosed for digitally controlling the convergence correction signals applied to the convergence correction coils of a color CRT. The convergence correction...
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3943279 |
Digital convergence of multiple image projectors
In a scanned multiple image display device a plurality of individual projectors produces a single composite image by optically combining individual projector outputs. The individual images must be...
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3878329 |
ORTHOSCOPIC IMAGE TUBE
A cathode-ray tube arrangement for presenting third dimensional effects without the use of special glasses and without mechanical motion. The device combines the features of integral photography...
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3838310 |
AUTO CENTERING FOR MULTIPLE TUBE TELEVISION COLOR CAMERAS
An automatic centering system is provided for multiple tube color cameras utilizing a plurality of channels of electronics, wherein at least one channel generates a signal which is the first...
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