Filter arrangement for cathode ray tube

Details Filter arrangement for cathode ray tube Filter arrangement for cathode ray tube

1978-09-28

1981-01-27

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358253, 350318, H04N 5645, H04N 572, G02B 700

Patent

active

042478715

ABSTRACT:
A color filter is placed between the face of a cathode ray tube display unit and a matt black gauze to produce an amber-colored image background. This highlights yellow data characters. The filter is a curved acrylic glass pane either bonded to the tube face in spaced relation or secured thereto by means of a sealing gasket of unique design and construction.

REFERENCES:
patent: 2436847 (1948-03-01), Wolfson
patent: 2684477 (1954-07-01), Fisch
patent: 3084217 (1963-04-01), Fiore et al.

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