| 摘要 |
PURPOSE:To eliminate the damage of a disk, nonstableness of reproduction, etc., by positioning an electrode end near the center part of the slide surface of a reproducing stylus and by forming the boundary part of the slide surface in a curved surface connecting with a curved surface outside of it. CONSTITUTION:Near the center part of the surface of reproducing stylus S where a disk comes into slide contact, the end of electrode 10 is positioned and the boundary part of the slide contact surface is formed in curved surface 12 connecting with the curved surface formed outside of the slide contact surface. For example, electrode part 10 in the shape shown in the figure is formed sticking to either one of reproducing styluses 8 and 9 and the other 8 is bonded to it to constituted reproducing stylus S. Then, spherical surface part 12 of <=200mum in radius of curvature is provided atop and conic surface part 11 is provided outside of it. Consequently, the pressure distribution of the slide contact surface of reproducing stylus S has minimum pressure at the edge of the slide contact surface, so that the damage of the disk, nonstableness in reproduction due to dust, etc., can be eliminated. |
