Projection tube having different neck diameters

Details Projection tube having different neck diameters Projection tube having different neck diameters

2006-07-11

2006-07-11

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Envelope

C313S426000

Reexamination Certificate

active

07075221

ABSTRACT:
The present invention aims at maintaining the high focusing performance at a low deflection power in a single-beam projection tube which is used as a projection type TV receiver or a projector and is operated at a high voltage and with a high current. The neck outer diameter of a portion on which a deflection yoke is mounted is made smaller than the neck outer diameter of a portion which accommodates an electron gun. The maximum anode voltage of the projection tube is set to equal to or more than 25 kV and the maximum beam current is set to equal to or more than 4 mA

REFERENCES:
patent: 3840773 (1974-10-01), Hart
patent: 4143298 (1979-03-01), Bing et al.
patent: 4485329 (1984-11-01), Donofrio et al.
patent: 5909079 (1999-06-01), Uchida et al.
patent: 6031326 (2000-02-01), Suzuki et al.
patent: 6133685 (2000-10-01), Konda et al.
patent: 6404119 (2002-06-01), Hidaka et al.
patent: 6717347 (2004-04-01), Kubosaka et al.
patent: 6750602 (2004-06-01), Hirota et al.
patent: 6847159 (2005-01-01), Suzuki et al.
patent: 2001/0024922 (2001-09-01), Kudoh et al.
patent: 2004/0041512 (2004-03-01), Kubosaka et al.
patent: 57025656 (1982-10-01), None
U.S. Appl. No. 09/909,195.

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