Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1978-12-18
1980-09-16
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
315 9, 315 31TV, H01J 2958
Patent
active
042232538
ABSTRACT:
The focusing system for a multi-pickup tube color television camera includes a main focus coil and a vernier focus coil about each pickup tube. The main focus coils are coupled in series to a common source and the vernier focus coils are independently controllable.
REFERENCES:
patent: 2994803 (1961-08-01), Goldberg
patent: 3564330 (1971-02-01), Pfeiffer
patent: 3586902 (1971-06-01), Siegel
patent: 3896339 (1975-07-01), Efimov et al.
patent: 3961219 (1976-07-01), Bechteler et al.
Blum Theodore M.
Rasmussen Paul J.
RCA Corporation
Troike Robert L.
Whitacre Eugene M.
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