Electric lamp and discharge devices – Cathode ray tube – Beam deflecting means
Reexamination Certificate
2006-06-13
2006-06-13
Williams, Joseph (Department: 2879)
Electric lamp and discharge devices
Cathode ray tube
Beam deflecting means
C313S441000, C313S421000
Reexamination Certificate
active
07061170
ABSTRACT:
A permanent magnet is selectively picked for a deflection yoke and provided on the periphery of the cathode ray tube for controlling the direction of an electron beam emitted towards a screen from an electron gun. The permanent magnet can adjust an irradiating point of the electron beam. The permanent magnet incorporates a magnetic substance that can be applied to at least one of the end faces of the magnet with a negative temperature characteristic. The magnetic substances can have different configurations and based on the saturation flux density of the permanent magnet, can be selected to match the permanent magnet to correct variation in the saturation flux density.
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Macchiarolo Peter
Williams Joseph
LandOfFree
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