Filter for CRT screen

Details Filter for CRT screen Filter for CRT screen

1988-02-10

1989-06-13

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358245, 358252, 313478, H04N 572

Patent

active

048397369

ABSTRACT:
A CRT filter of the present invention consists of a film having a transparent conductive layer and effectively eliminates the static electricity which are generated from the CRT. Further, after the film previously having the transparent conductive layer was continuously manufactured, it can be laminated onto a nonconductive transparent sheet or plate. The transparent conductive film of a stable quality can be cheaply obtained. Thus, the CRT filter having the excellent static electricity eliminating capability and high resolution is manufactured. On the other hand, the CRT filter of the invention has such a shape as to be closely attached onto the front surface of the CRT. Therefore it is also possible to prevent such a phenomenon that the display image in the corner portion of the screen is blurred without deteriorating the resolution. The operator can continue the work without feeling the fatigue of the eyes and the mental pain.

REFERENCES:
patent: 2436847 (1948-03-01), Wolfson
patent: 3378636 (1965-05-01), Hamilton
patent: 3679451 (1972-07-01), Marks et al.
patent: 3736050 (1973-05-01), Bolum
patent: 3873868 (1975-03-01), Robinder
patent: 4253737 (1981-03-01), Thomsen et al.
patent: 4631214 (1986-12-01), Hasegawa
patent: 4755716 (1988-07-01), Hayafune et al.

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