Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1983-06-22
1987-07-07
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
342179, H01J 2958
Patent
active
046789693
ABSTRACT:
A display system employing a stigmator coil disposed on the neck of a cathode-ray tube to widen an electron beam primarily in a direction normal to the electron beam scanning direction to produce a continuous shading effect for displaying weather information. A bidirectional pseudo-raster scan writing pattern is used to obtain maximum fill effect between scan lines and illumination uniformity with far fewer raster lines than in a conventional raster display.
REFERENCES:
patent: 3484647 (1969-12-01), McGuinness
patent: 4091311 (1978-05-01), Mendelsohn et al.
patent: 4388619 (1983-06-01), Beck
Levine Gerald B.
Schwerdt Kurt R.
Blum Theodore M.
Dawson Walter F.
Maloney Denis G.
Raytheon Company
Sharkansky Richard M.
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