| 摘要 |
PURPOSE:To simplify manufacturing of a deflection york without performing any wavy treatment on a ring-like plate spring by forming a concave area and a convex area on two alignment magnets installed in a deflection york for an image pickup tube. CONSTITUTION:An image pickup tube 4 is inserted into a coil bobbin 5 which is prepared by winding a horizontal vertical coil 6 and has a magnetic shield plate 7 in its outer surface. Alignment magnets 1 and 2 are attached to the magnet attachment section 5a of the bobbin 5 through a ring-like plate spring 3, thereby making a deflection york for an image pickup tube. The concave area 1a of the lignment magnet 1 and the convex area 2a of the alignment magnet 2 are placed facing each other to fix these members with the plate spring 3 interposed. As a result, the plate spring 3 is deformed due to the concave and the convex areas 1a and 2a to produce repulsive force which facilitates supporting of the plate spring 3. Accordingly, it becomes unnecessary to perform wavy form treatment on the plate spring 3 and material selection and manufacturing can be facilitated. |
