Electric lamp and discharge devices – Cathode ray tube – Envelope
Patent
1980-05-29
1983-07-12
La Roche, Eugene
Electric lamp and discharge devices
Cathode ray tube
Envelope
313364, 313461, 313474, H01J 2986
Patent
active
043933297
ABSTRACT:
An article of manufacture is disclosed for use in a projection television system. A cathode ray picture tube has a face panel with a rearwardly extending skirt and a window for receiving a cathodoluminescent imaging screen. The tube has a seal land which defines a plane whose normal makes a non-zero acute angle with respect to the axis of said window. The article is for use in a system having a cathode ray picture tube whose projection optical axis is on the axis of a remotely located viewing screen, and at least one displaced axis cathode ray picture tube; that is, a tube whose projection optical axis is displaced from the axis of the viewing screen by a non-zero acute angle.
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La Roche Eugene
Zenith Radio Corporation
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