Projection television tube system and method of producing same

Details Projection television tube system and method of producing same Projection television tube system and method of producing same

H - Electricity

01

J

316/11, 313/35,

H01J 29/00 (2006.01) H01J 29/89 (2006.01) H01J 31/10 (2006.01) H04N 5/74 (2006.01)

Patent

CA 1050602

ABSTRACT OF THE DISCLOSURE A colour projecting television receiver and projector having three colour tubes mounted in fixed relation and in predetermined location relative to a screen for projecting three colour pictures in registration thereon. Accurate registration of the pictures results from a projection tube structure adapted for accurate reproducability in production, whereby field adjustment is mini- mized. The tube structure employs a mounting barrel accurately suspended within the evacuated envelope and supporting a phosphor- coated target and a projection mirror. A Schmidt correction lens is mounted externally to the envelope of each tube.

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