| 摘要 |
PURPOSE:To obain a supporting body which has mass productivity and is inexpensive and has less variance of characteristics, by inserting a metallic solid wire core material through a melted viscoelastic material to stick cylindrically the viscoelastic material to the core material. CONSTITUTION:The inside of a melting furnace 7 is heated, and a melted silicone rubber 8 as the viscoelastic material is put in this furnace 7, and one phosphor bronze wire 11 having 0.1mm. diameter is inserted through this melting furnace 7. A silicone bar 15 where the silicone rubber 8 is stuck cylindrically around the phosphor bronze wire 11 is taken from a drawing hole 10 to the outside of the melting funace 7 in accordance with rotation of a take-up drum 13 and is wound around the take-up drum 13 after the silicone rubber is cooled in air and is solidified. Since the diameter of the drawing hole 10 is 1mm., the diameter of the silicone bar 15 is always 1mm.. The silicone bar 15 obtained in this manner is cut to an objective length to obtain the supporting body of an objective lens driving device. |
