ELECTRON DEFLECTION APPARATUS FOR CATHODE-RAY TUBE

Title:

ELECTRON DEFLECTION APPARATUS FOR CATHODE-RAY TUBE

Document Type and Number:

Japanese Patent JP2001118528

Kind Code:

A

Abstract:

To reduce aberrations caused by coma parabola by arranging the conductor body of a deflection coil, without having to a magnetic field shaper.

A deflection coil comprises a pair of horizontal deflection coils (3) and a pair of saddle-type vertical deflection coils (4). The vertical deflection coils (4) includes a rear bundle (19) positioned near the electron gun, a front bundle (29) positioned adjacent to a screen, and side conductor harness 120 connecting the two bundles and forming a main window (18) in the intermediate region between two bundles. The conductor harness is arranged, in such a manner that at least 98% of the side harness is located within the opening angle Θm of 90° to 80° in the end of the main window (18) near the electron gun.

Inventors:

AZZI NACERDINE
MASSON OLIVIER
VOLATIER SEBASTIEN

Application Number:

JP2000257703A

Publication Date:

April 27, 2001

Filing Date:

August 28, 2000

Export Citation:

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Assignee:

THOMSON TUBES & DISPLAYS

International Classes:

H01J29/76; H01J29/70; (IPC1-7): H01J29/76

Domestic Patent References:

JPH03184242A	1991-08-12
JPH07509093A	1995-10-05
JPH03184242A	1991-08-12
JPH07509093A	1995-10-05

Attorney, Agent or Firm:

Katsunori Watanabe

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