Electric lamp and discharge devices – Cathode ray tube – Plural beam generating or control
Patent
1976-06-24
1977-12-06
Segal, Robert
Electric lamp and discharge devices
Cathode ray tube
Plural beam generating or control
H01J 2950, H01J 3120
Patent
active
040619419
ABSTRACT:
An improvement is provided in a cathode ray tube plural beam in-line electron gun assembly having applied beam currents of differing levels. At least one of the gun structures in the assembly incorporates discrete electrode modifications or differentiations whereby the respective focusing lens is dimensionally changed to effect a focused beam landing at the screen that is of a size similar to those of the beams emanating from the related guns in the assembly.
REFERENCES:
patent: 3294999 (1966-12-01), Van Hekken
patent: 3619686 (1971-11-01), Miyaoka
patent: 3755703 (1973-08-01), Ueno et al.
patent: 3883771 (1975-05-01), Ohgoshi et al.
patent: 3906279 (1975-09-01), Linssen
Hallett Joseph L.
Say Donald L.
GTE Sylvania Incorporated
O'Malley Norman J.
Orner Robert T.
Rinn Frederick H.
Segal Robert
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