System and method for filtering output of a cathode ray tube

Details System and method for filtering output of a cathode ray tube System and method for filtering output of a cathode ray tube

1997-06-17

1999-09-14

Evans, Arthur G.

395109, G06K 1500

Patent

active

059534958

ABSTRACT:
A printer for transferring image data from a computer to a print media. The printer displays the image data in line segments on the CRT, which then transfers the image line segments of the image onto the media, as the media moves across the cathode ray tube. The segments are used to illuminate phosphor rows on an inside surface of the cathode ray tube, and filters, chemically bonded to an outside surface of the cathode ray tube, adjust the spectral output of the phosphor rows to match the spectral requirements of the print media. The filters may be short pass, long pass, or band pass to achieve the required adjustments to the light so that the print media is properly exposed. Protrusions are formed on the edges of the filters to act as spacers between the filters and the print media.

REFERENCES:
patent: 3612753 (1969-04-01), Kormam
patent: 3693931 (1972-10-01), Horowitz
patent: 5232748 (1993-08-01), Horowitz et al.
patent: 5313211 (1994-05-01), Appel et al.

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