| 摘要 |
PURPOSE:To enable mold release to be carried out easily by covering the surface of a mold parent material being in contact with a resin layer with a carbon film. CONSTITUTION:Resin is charged into a gap between a mold parent mold 1 and a glass lens 5, and the resin is cured so that a resin layer 4 is formed on the lens 5. In this instance, the mold parent material 1 is covered with a carbon film 2. The carbon film 4 means an amolphous carbon film, a diamond film, and a film wherein an amolphous carbon is contained with graphite and diamond in various ratios. These carbon films are formed in such a way that carbon-containing gas and carrier gas are excited by the use of an ion beam method, a microwave CVD method, a heat filament method, and the like, or the targets of graphite or diamond are sputtered by ion beams. In this manner, a molding can be released without being deformed easily. |
