Television camera tube

Details Television camera tube Television camera tube

H - Electricity

01

J

313/35.2

H01J 31/28 (2006.01) H01J 29/02 (2006.01)

Patent

CA 1081303

ABSTRACT: If in a television camera tube the gauze- shaped electrode which is tensioned before the sig- nal plate is assembled in a damped mass-spring sys- tem, in which the ratio of the mass of said system to the mass of the gauze should be larger than 30, while the fundamental frequency of the gauze and the natural frequency of the mass system differ less than 10% from each other and the damping of the mass spring system is so large that the time necessary for a decrease in amplitude of 20 db of the vibration of the mass of the mass spring system is smaller than 0.5 second, a tube is obtained having a low microphony.

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