| 摘要 |
A method of manufacturing optical glass elements comprising the step of press molding a preformed glass material while in a heat-softened state, which material having a carbon film on a surface thereof, to transfer a molding surface of a pressing mold. The carbon film is less than or equal to 10 nm in thickness and is formed in such a manner that after press molding, a carbon film comprising at least two carbon atom layers in thickness is present on the surface of the optical glass element that has been molded by the molding surface. In the method of manufacturing glass elements, fusion between the glass material and the molding surfaces, flaws, and breach are prevented and fogging does not occur on the surface of the optical element obtained.
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