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Patent Searching and Data


Title:
DEFLECTION YOKE
Document Type and Number:
Japanese Patent JPH065229
Kind Code:
A
Abstract:

PURPOSE: To allow more fine correction of mis-convergence.

CONSTITUTION: A coma coil portion is provided with a set of two coma coils 26a, 26b connected together in series, and a vertically deflection coil portion 24 is connected in series to the coma coil and the individual variable terminals of two variable resistors are connected to the midpoint of the coma coil portion, or to the connection point of the coma coils 26a, 26b. Diodes are set up to carry a vertically deflecting current into one variable resistor 27a only to A direction and to carry a vertically deflecting current into the other variable resistor 27b only to B direction. In this way, for the upper half of a screen where the vertically deflecting current flows to A direction adjustment can be made by the variable resistor 27a, and for the lower half of the screen where it flows to B direction adjustment can be made by the variable resistor 27b, so that more fine correction of mis-convergence is allowed for the upper half or lower half of the screen, independently.


Inventors:
Koizumi, Hirohisa
Application Number:
JP1992000159206
Publication Date:
January 14, 1994
Filing Date:
June 18, 1992
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H01J29/76; H04N9/28; (IPC1-7): H01J29/76; H04N9/28
Attorney, Agent or Firm:
小鍜治 明 (外2名)