Method of fabricating image pickup tubes

Electric lamp or space discharge component or device manufacturi – Process – With assembly or disassembly

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Details

313371, H01J 3126, H01J 920

Patent

active

044577320

ABSTRACT:
A method for fabrication of an image pickup tube face plate structure comprises adhering a transparent glass sheet material having a thickness of about 40 to 80 microns to a color separation stripe-shaped filter formed on a face plate of the tube, and forming an optically polished surface on a top of the glass sheet while reducing the distance between the top and the stripe filter surface to about 40 microns or less.

REFERENCES:
patent: 2773992 (1956-12-01), Ullery
patent: 3567547 (1971-03-01), Mattson
patent: 4004176 (1977-01-01), Otake et al.

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