Cathode ray tube

Details Cathode ray tube Cathode ray tube

H - Electricity

01

J

313/35.31

H01J 29/62 (2006.01) H01J 29/46 (2006.01) H01J 29/74 (2006.01) H01J 31/28 (2006.01) H01J 31/38 (2006.01)

Patent

CA 1223028

ABSTRACT A cathode ray tube comprises an envelope, an electron beam source positioned at one end of the envelope, a target positioned at another end of the envelope, and an electrostatic lens means positioned between the electron beam source and the target. The lens means has a first cylindrical electrode and a second cylindrical electrode positioned along the electron beam path to focus the electron beam. The second cylindrical electrode is divided into four patterned electrodes, and each of the deflection electrodes has a lead which is formed across the first cylindrical electrode but is isolated therefrom. The portion of the leads is positioned to cause a pro- deflection to the electron beam.

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