| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold for molding an optical element which is excellent in cutting properties although it is low cost and excellent in handling properties, and can improve dimensional accuracy, and to provide a method for molding the optical element, and the optical element molded thereby. SOLUTION: A molding transferring face is not directly formed on a base body 10 of the mold for molding the optical element, but a film layer of an amorphous alloy with a supercooled liquid region which has a heat resistance of≥a glass transition temperature (Tg) of a material of the optical element+50°C, and is excellent in a performance to be cut, is formed on the base body 10. By this method, in comparison with such a conventional process that manufactures a heat-resistant material such as a cemented carbide material used for a matrix of the mold for molding the optical element of a glass mold by a cutting process, it is possible that not only accuracy of the mold can be achieved and a delivery date can be shortened, but also a fine processing such as a ring structure of a blaze shape which is impossible to be prepared by the cutting process of a heat-resistant material can be applied on the molding transferring face of the mold by cutting processing. COPYRIGHT: (C)2006,JPO&NCIPI |
