| 摘要 |
PURPOSE:To obtain a composite type optical element, which has excellent resin- layer roundness and in which there is no dispersion in a resin diameter, by forming a closed space equal to a desired resin shape by a base material, a mold and a bell clamp and injecting a resin into said closed space. CONSTITUTION:A base material 1 is placed on a bell clamp 2. A bell clamp 3, to which a mold 4 is fitted in a vertically slidable manner, is abutted against the top face of the base material 1. A resin filler hole 6 is opened to the lower section of the inner circumferential surface of the bell clamp 3, and the nose of a resin injection pipe 7 is connected to the resin filler hole 6. A closed space 5 is formed by the base material 1, the bell clamp 3 and the molding surface 4a of the mold 4. |
