CONVERGENCE YOKE

• Main Authors: SAKURAI SOICHI, MIZUTA TAKAHISA, OKUYAMA NORITAKA, NAKAHARA MASAKI
• Format: Patent
• Language: English
• Published: 07.02.1992
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PURPOSE:To correct dispersion in the magnetic field caused between magnetic poles due to manufacture accuracy or the like and to adjust a magnetic field to each cathode ray tube by adjusting a magnetic field adjustment core so as to correct an unbalance component caused between the magnetic poles. CONSTITUTION:When a magnetic field adjustment core 1f is moved in a direction IN in a core projection 1j, an equivalent permeability of the core projection 1j is increased and when the magnetic field adjustment core 1f is moved in a direction OUT in the core projection 1j, an equivalent permeability of the core projection 1j is decreased. Moreover, the equivalent permeability is respectively increased/decreased according to the same reason as to a magnetic adjustment core 1g and a core projection 1k, a magnetic adjustment core 1h and a core projection 1l, and a magnetic adjustment core 1e and a core projection 1i. Thus, the strength of magnetic fields 1m, 1n, 1o and 1p and the magnetic field distribution are adjusted. Thus, dispersion in the magnetic field caused between magnetic poles due to manufacture accuracy or the like is corrected and a magnetic field of each cathode ray tube is adjusted.