Peripheral bodies for tension mask CRT panel

Details Peripheral bodies for tension mask CRT panel Peripheral bodies for tension mask CRT panel

1991-04-15

1992-07-07

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

445 8, 220 23A, H01J 926

Patent

active

051278650

ABSTRACT:
An annulus attached adjacent the edge planes of a CRT front panel provides screen area savings, and in the preferred embodiment, panel protection, strengthening, and anti-implosion properties. The annulus is preferably composed of a plurality of sections and incorporates a shadow mask support. The annulus is attached to the front panel before receiving the shadow mask and becomes a part of the CRT envelope. In a preferred embodiment, the annulus is composed of ceramic and is x-ray shielded by an application of lead-based frit.

REFERENCES:
patent: 4054913 (1977-10-01), Lerner
patent: 4268712 (1981-05-01), Overall
patent: 4712041 (1987-12-01), Greiner et al.
patent: 4737681 (1988-04-01), Dietch et al.
patent: 4884006 (1989-11-01), Prazak, III
patent: 4900977 (1990-02-01), Lopata et al.
patent: 4930015 (1990-05-01), Dougherty et al.

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