| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a die for molding an optical element by which the micropeeling from a molding face and the seizure of an optical element can be suppressed. SOLUTION: The method for producing a die for molding an optical element comprises: an intermediate layer forming stage where, on the upper face 2a of a base material 2 comprising a tungsten carbide alloy, an intermediate layer forming layer 3 composed of a mixture comprising at least one kind of element selected from platinum, palladium, iridium, osmium, ruthenium, rhenium, hafnium and tantalum, and one or more kinds of elements comprised in the base material 2 is formed; a working layer forming stage where, on the upper face 3a of the intermediate layer 3, a working layer 5 composed of simple substance including at least one kind of element selected from platinum, palladium, iridium, osmium, ruthenium, rhenium, hafnium and tantalum or a mixture thereof is formed; a sintering stage where the intermediate layer 3 and the working layer 5 are integrally sintered; and a working stage where the working layer 5 is worked, so as to be a shape close to that of a desired optical element. COPYRIGHT: (C)2008,JPO&INPIT
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