Deflection circuit for a cathode ray tube

Details Deflection circuit for a cathode ray tube Deflection circuit for a cathode ray tube

1985-08-29

1987-05-19

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

313422, H01J 2970, H01J 2972

Patent

active

046671340

ABSTRACT:
A deflection circuit having particular application to a flat cathode ray display tube in which a channel plate electron multiplier is disposed parallel to, and spaced from, a cathodoluminescent screen and a low current, low voltage electron beam is scanned over the input side of the electron multiplier by means of a variable electrostatic field created between a planar array of substantially parallel elongate electrodes and the input side of the electron multiplier. In order to generate the variable electrostatic field a deflection circuit is provided having a plurality of ramp voltages generating stages, each stage being connected to a respective elongate electrode. The deflection circuit is operated in such a manner that the completion of the generation of a ramp voltage in one stage is used to trigger the next required stage.

REFERENCES:
patent: 2961575 (1960-11-01), Pohl
patent: 3171056 (1965-02-01), Gabor
patent: 4121164 (1978-10-01), Feucht
patent: 4129804 (1978-12-01), Wiesbrod
patent: 4490653 (1984-12-01), Olmstead

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