Color picture tube having improved temperature compensating supp

Details Color picture tube having improved temperature compensating supp Color picture tube having improved temperature compensating supp

1982-04-29

1984-07-17

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313407, H01J 2907

Patent

active

044608438

ABSTRACT:
An improved color picture tube according to the invention includes an evacuated envelope enclosing a mask attached to a frame, which is suspended in relation to a cathodoluminescent screen by novel support means. The tube also includes an electron gun for forming a plurality of electron beams and directing the beams through the mask to the screen. The novel support means includes a plurality of springs each having an aperture engaged with a stud which is embedded in the envelope. Each of the springs is attached to the frame and has a resilient portion between the aperture and each location of attachment. The resilient portion is inclined relative to the longitudinal axis of the tube, and a plane containing a major surface of the resilient portion approximately parallels one of the perpendicular screen axes.

REFERENCES:
patent: 2795718 (1957-06-01), van Hekken et al.
patent: 2795719 (1957-06-01), Morrell
patent: 3308327 (1967-03-01), Shrader
patent: 3370194 (1968-02-01), Schwartz et al.
patent: 3487251 (1969-12-01), Barten et al.
patent: 3492522 (1970-01-01), Pappadis
patent: 3529199 (1970-09-01), Duistermaat et al.
patent: 3803436 (1974-04-01), Morrell
patent: 3832592 (1974-08-01), Yamazaki
patent: 3943399 (1976-03-01), Sedivy

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