Method of producing a color picture tube screen

Details Method of producing a color picture tube screen Method of producing a color picture tube screen

1988-04-25

1989-09-12

Mathews, A. A.

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

Physical developing

430 23, 430 24, G03C 500, G03B 4100

Patent

active

048664669

ABSTRACT:
A method of producing a color picture tube screen particularly for a high definition tube. In producing a high definition screen light from a point source (S) is directed through a segmented lens (18) and a shadow mask (24) onto a layer of photoresist applied to the internal surface of a faceplate panel (12). The segmented lens (18) comprises a rectilinear array of differently inclined facets (F). In order to obtain a substantially uniform illumination of the faceplate panel (12), the segmented lens (18) is wobbled in an oblique direction such that in moving from one extreme position to another, the image of a facet on the panel occupies substantially the previous position of the image of another facet obliquely adjacent the first mentioned facet when at the one extreme position.

REFERENCES:
patent: 3279340 (1966-10-01), Ramberg et al.
patent: 3499372 (1970-03-01), Staunton
patent: 3582701 (1971-06-01), Zeliotis
patent: 3628850 (1971-12-01), Yamazaki et al.
patent: 3654505 (1972-04-01), Davis et al.
patent: 3788200 (1974-01-01), Yamazaki et al.
patent: 3809558 (1974-05-01), Yamazaki et al.
patent: 4052122 (1977-10-01), Yamazaki et al.
patent: 4211477 (1980-07-01), Ueyama et al.

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