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US 2006/0038475 A1Published application
Low consumption cathode structure for cathode ray tubes
AssigneeThomson Licensing
InventorsChristian Galmiche, Michel Tirant, Francois Fichet, Philippe Zehnder, Gerard Proudhon
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Abstract
Cathode structure for cathode ray tube comprising an eyelet in two separate parts positioned such that one of the parts covers, in the longitudinal direction and at least partially, the second part. The two parts are linked to each other at the shouldered ends. This structure reduces the heat losses of the cathode and reduces its consumption while it is operating.
Claims11
Cathode for cathode ray tube electron gun comprising:
- a cathode sleeve open at one of its ends and closed at its opposite end by a cap covered with emissive materials
- a heating filament positioned inside the sleeve and comprising a heating element and two legs extending towards the open end of said sleeve
- a first cathode eyelet securely attached to the sleeve extending at least partially around the latter
- rigid means of supporting the cathode in the gun,
- wherein the cathode comprises a second eyelet positioned at least partially around the first at a distance from the latter such that the two eyelets are securely attached to each other at one of their ends.
2 more elements
Dependencies are inferred from the claim text.