Cold cathodes, e.g. field-emissive cathode

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Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps (details of electron-optical or ion-optical arrangements H01J3/00) > Main electrodes > Cold cathodes, e.g. field-emissive cathode

Child Classifications

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• H01J 1/304 Field-emissive cathodes
• H01J 1/308 Semiconductor cathodes, e.g. cathodes with PN junction layers
• H01J 1/312 having an electric field perpendicular to the surface, e.g. tunnel-effect cathodes of metal-insulator-metal [MIM] type
• H01J 1/316 having an electric field parallel to the surface, e.g. thin film cathodes