Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means
Reexamination Certificate
2005-08-23
2005-08-23
Guharay, Karabi (Department: 2879)
Electric lamp and discharge devices
Cathode ray tube
Beam deflecting means
C313S413000, C335S213000, C315S368250
Reexamination Certificate
active
06933667
ABSTRACT:
The invention provides a deflection yoke device comprising a main yoke portion4for deflecting an electron beam emitted by an electron gun, and a convergence yoke portion5for adjusting the convergence of the electron beam. The convergence yoke portion5comprises an annular convergence core53,a convergence horizontal coil51wound around both of left and right two regions of the core53which intersect a horizontal axis, and a convergence vertical coil52wound around both of upper and lower two regions of the core53which intersect a vertical axis. Short-circuited coils54, 54are provided around the respective left and right two regions of the core53.
REFERENCES:
patent: 5172035 (1992-12-01), Sakurai et al.
patent: 5430351 (1995-07-01), Yokota
patent: 6737818 (2004-05-01), Sakurai et al.
Armstrong Kratz Quintos Hanson & Brooks, LLP
Guharay Karabi
Sanyo Electric Co,. Ltd.
Sanyo Electronic Components Co., Ltd.
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