| 摘要 |
PROBLEM TO BE SOLVED: To obtain dies for forming an optical element capable of forming a high precision optical glass element having good optical performance in a short tact time. SOLUTION: A metallic film containing at least one metal selected from the group consisting of Au, Ir, Re, Os, Pd, Rh, Ru and Pt is formed on the base material of a press forming die obtained by working a material excellent in heat resistance and workability in the shape of dies for an optical glass element to be formed, and a hydrocarbon film is further formed on the metallic film to obtain the objective dies for forming an optical element.
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