Method of manufacturing luminescent screens for color-picture tu

Details Method of manufacturing luminescent screens for color-picture tu Method of manufacturing luminescent screens for color-picture tu

1980-01-03

1981-08-18

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

Using specific control or specific modification of exposure,...

354 1, 430 26, 430394, 430396, 430494, G03C 500

Patent

active

042846951

ABSTRACT:
A phosphor-containing layer (2) deposited on the glass faceplate (1) of a color-picture tube is hardened by exposure to light in two steps in order to obtain an amount of light varying from point to point on the glass faceplate and to realize sharp-edged phosphor strips having only slight width variations. In the first step, the main portion of the amount of light required to harden the layer is allowed to fall on the layer without affecting the position-dependent light distribution, and in the second step the layer is exposed essentially to the position-dependent amount of light required to complete the necessary total amount of light.

REFERENCES:
patent: 2717545 (1955-09-01), Engeler
patent: 3005708 (1961-10-01), Hesse
patent: 3287130 (1966-11-01), Kaplan
patent: 3762284 (1973-10-01), Paak et al.
patent: 4013467 (1977-03-01), Hosokoshi et al.
patent: 4045224 (1977-08-01), Yamazaki et al.
patent: 4132470 (1979-01-01), Van Heek

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