Flat cathode ray display tube with beam generator subassembly

Details Flat cathode ray display tube with beam generator subassembly Flat cathode ray display tube with beam generator subassembly

1986-09-08

1988-05-31

Moore, David K.

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

313103R, 313103CM, 313105R, 313105CM, 313106, 313107, 313481, 313482, 313560, 313634, H01J 2986

Patent

active

047483733

ABSTRACT:
A flat cathode ray display tube has an envelope divided into front and rear portions by a partition carrying frame deflection electrodes with an electron gun (30) and line scanning deflector positioned in the rear portion, the electron beam being directed initially parallel to a flat faceplate of the envelope, turned through 180.degree. by a reversing lens into the front portion and then deflected by electrodes towards a screen on the faceplate. In addition to the electrodes, other components are also mounted on the partition forming a sub-assembly whereby correct mutual positioning is ensured and assembly facilitated. A spacing structure accurately spaces the sub-assembly from the faceplate and supports also an electron multiplier for beam current amplication.

REFERENCES:
patent: 2795729 (1957-06-01), Gabor
patent: 2864970 (1958-12-01), Aiken
patent: 2885595 (1959-04-01), Gabor
patent: 2926255 (1960-02-01), Gabor et al.
patent: 2926274 (1960-02-01), Gabor
patent: 2982875 (1961-05-01), Gabor
patent: 3171056 (1965-02-01), Gabor
patent: 4209727 (1980-06-01), Hausheer
patent: 4451756 (1984-05-01), Sato et al.
patent: 4564785 (1986-01-01), Sato et al.
patent: 4621215 (1986-11-01), Tanaka

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