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1. WO2002093611 - MATERIAU MAGNETIQUE SERVANT A COMBLER DES VIDES DANS DES ENSEMBLES DE DEFLEXION

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

CLAIMS:

1. A deflection yoke (10) for a cathode ray tube (14), the deflection yoke (10) comprising
a set of line deflection coils (17),
a set of field deflection coils (18) surrounding the set of line deflection coils (17), the set of field deflection coils (18) comprising wire strands (50) and having first void spaces (52) between the wire strands (50), and
a ferrite core (22) surrounding the set of field deflection coils (18),
second void spaces (54) being present between the set of field deflection coils (18) and the ferrite core (22), wherein the first and/or second void spaces (52,54) are filled with a preformed insert (90) comprising magnetic particles (56).

2. A deflection yoke (10) for a cathode ray tube (14) as claimed in claim 1, wherein the insert (90) comprises an elastic material (56).

3. A deflection yoke (10) for a cathode ray tube (14) as claimed in claim 1, wherein third void spaces exist between the set of line deflection coils and the set of field deflection coils, and the third void spaces are filled with a second preformed insert (90) comprising magnetic particles (56).

4. A cathode ray tube assembly (10,14) comprising a cathode ray tube (14), and a deflection yoke (10) as claimed in claim 1.

5. A display apparatus, comprising:
a cathode ray tube assembly (10,14) as claimed in claim 4,
control electronics (E) coupled to receive a video signal (VS) to apply a display signal to the cathode ray tube (14) and deflection signals to the deflection yoke (10) in dependence on the video signal (VS).

6. A preformed insert (90) comprising magnetic particles (56), the preformed insert (90) having a form that allows the preformed insert (90) to be used in a deflection yoke (10) as claimed in claim 1.