Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means
Patent
1993-04-21
1995-07-04
O'Shea, Sandra L.
Electric lamp and discharge devices
Cathode ray tube
Beam deflecting means
313479, 313413, 335210, 335212, 335214, 348820, H01J 2970, H01J 3100
Patent
active
054303524
ABSTRACT:
A cathode ray tube device capable of providing sufficient shielding effect against leaking alternating electric field while exhibiting high reliability during long use. Alternating electric field generated by a deflection yoke is sufficiently reduced by the shielding effect produced by a conductive film formed on a funnel portion. A gap formed between the conductive film and an insulating sheet provided between the conductive film and the deflection yoke, due to dimensional error, is filled with insulating silicone grease, so as to avoid secular degradation of insulation which otherwise may occur due to accumulation of dust and other matters.
REFERENCES:
patent: 3831123 (1974-08-01), Aldrich et al.
patent: 4151561 (1979-04-01), Kratz et al.
patent: 4560900 (1985-12-01), Ikegaki et al.
patent: 4988915 (1991-01-01), Zegers
patent: 5019745 (1991-05-01), Deal et al.
patent: 5138290 (1992-08-01), Togane et al.
patent: 5204649 (1993-04-01), Togane et al.
patent: 5250876 (1993-10-01), Van Mierlo et al.
patent: 5304891 (1994-04-01), Otsuka
Esserman Matthew J.
Mitsubishi Denki & Kabushiki Kaisha
O'Shea Sandra L.
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