Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Electron or ion beam deflecting type
Patent
1990-09-10
1992-01-07
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Electron or ion beam deflecting type
335210, 313426, H01F 312
Patent
active
050795317
ABSTRACT:
A deflection yoke arrangement with geometry correction includes horizontal and vertical deflection coils for scanning a raster pattern on a phosphor screen of a cathode ray tube. A support housing suitable for positioning about the neck of the cathode ray tube contains the coils and has a front rim formed with a plurality of slots near the outer periphery. A plurality of brackets formed from magnetically permeable material are located in corresponding ones of the slots. Each bracket comprises two flat end sections joined to opposite sides of a flat central part at substantially right angles thereto. One of the flat end sections of each bracket collects magnetic flux generated by the coils and channels the flux via the central part to the other end section. The plurality of brackets shape the deflection magnetic field in the region about the front rim to provide the geometry correction.
REFERENCES:
patent: 4257023 (1981-03-01), Kamijo
patent: 4307363 (1981-12-01), McGlashan
patent: 4429293 (1984-01-01), McGlashan
patent: 4746837 (1988-05-01), Vink
Audoux Eric
Fourche Jean-Pierre
Rousseau Jean
Harris George
Laks Joseph J.
Tripoli Joseph S.
Videocolor (S.A.)
LandOfFree
Geometry correction device for cathode ray tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Geometry correction device for cathode ray tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometry correction device for cathode ray tubes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-824797