Cathode ray tube with supporting members each having a first and

Details Cathode ray tube with supporting members each having a first and Cathode ray tube with supporting members each having a first and

1996-09-06

1998-11-03

O'Shea, Sandra L.

Electric lamp and discharge devices

Plural unit

Cathode ray tube

313408, 313496, 313402, H01J 3120

Patent

active

058313729

ABSTRACT:
A vacuum envelope includes a flat faceplate and a flat rear plate opposed to the faceplate. A phosphor screen is formed on an inner surface of the faceplate. A plurality of support members are located between the faceplate and the rear plate and bear atmospheric pressure acting on the faceplate and the rear plate. Each support member has first and second support portions. The first support portion is set up on the rear plate and has a proximal end face intimately in contact with the inner surface of the rear plate and a bearing surface substantially parallel to the rear plate. The second support portion is provided between the bearing surface of the first support portion and the faceplate, and has a distal end abutting against a predetermined position on the inner surface of the faceplate and a proximal end portion intimately in contact with the bearing surface of the first support portion.

REFERENCES:
patent: 5287034 (1994-02-01), Kamohara et al.
patent: 5365142 (1994-11-01), Nishimura et al.

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