H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/55
H04N 3/16 (2006.01) H01J 29/58 (2006.01) H01J 31/38 (2006.01)
Patent
CA 1130448
ABSTRACT A device having a camera tube of the vidicon type. During flybacks of the deflection, the beam cur- rent is increased and the cathode potential is increased so as to achieve the so-called anti-comet tail effect. In order to cause during flybacks the beam to neverthe- less land on the sensitive layer perpendicularly every- where, the electron beam is focused at the deflection point of the deflection coils during the flybacks.
313079
Koninklijke Philips Electronics N.v.
Van Steinburg C.e.
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