Method for scanning fiber optic tube

Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits

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358 66, 358901, H01J 2980, H04N 922

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active

046879749

ABSTRACT:
In a method for scanning a color fiber optic tube of an electron gun type in which a screen is formed by a plurality of band-shaped phosphors providing different illuminant colors, usually red, green and blue, respectively, an electron beam from the electron gun is deflected vertically in a lateral direction of the phosphors and horizontally in a longitudinal direction thereof. The vertical deflection of the electron beam is time controlled in response to the sensitivity of a photo-sensitive material disposed to the fiber optic tube. In another aspect, the horizontal deflection is performed by a stepped method in which the horizontal deflection is stopped during a time interval when one raster of the vertical deflection of the electron beam crosses the phosphors and progresses stepwisely when the vertical deflection is subsequently transferred to the next raster.

REFERENCES:
patent: 3860753 (1975-01-01), Tsuneta et al.
patent: 4141642 (1979-02-01), Nagai et al.
patent: 4305092 (1981-12-01), Katzfey
patent: 4309720 (1982-01-01), Denham

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