Multiple beam cathode ray tube having improved cathode-grid...

Details Multiple beam cathode ray tube having improved cathode-grid... Multiple beam cathode ray tube having improved cathode-grid...

H - Electricity

01

J

313/35.26

H01J 29/48 (2006.01) H01J 29/04 (2006.01) H01J 29/50 (2006.01) H01J 29/82 (2006.01) H01J 31/12 (2006.01)

Patent

CA 1135323

MULTIPLE BEAM CATHODE RAY TUBE HAVING IMPROVED CATHODE-GRID STRUCTURE Abstract of the Disclosure A multiple beam cathode ray tube having an improved cathode-grid structure which facilitates grid lead connections and mounting. The cathode means has a plurality of openings which are arranged in an array pattern which is identical to the desired electron beam array pattern, and has an emitter means associated with each opening for emitting a group of electrons. The grid means is located behind instead of in front of the cathode means and is comprised of a plurality of grid elements mounted on a substrate. When appropriately biased, the grid elements cause groups of electrons which are emitted by the respective emitter means to flow through the corresponding openings in the cathode in the direction of the screen, thus establishing the required electron beams. Y0978-072

365267

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