Mold for molding optical element

Details Mold for molding optical element Mold for molding optical element

1996-10-30

1999-01-05

Griffin, Steven P.

Glass manufacturing

Preform reshaping means

65305, 653741, 6537415, 65 26, 425808, 2491141, 249115, 106 3828, C03B 1108, C03B 4000, B29C 3356

Patent

active

058556419

ABSTRACT:
Molds for press molding an optical element of glass are disclosed. Proposed are: (1) A mold contains oxygen at the interface between a mold base of the mold and a carbon film formed at least on the molding surface of the mold base with an oxygen amount of 0-10 atom % and with the interface of a width of 0-500 .ANG., (2) a mold subjected to carbon ion injection at least on the molding surface of the mold base, and (3) a mold subjected to ion injection during or after formation of a carbon film at least on the molding surface of the mold base material.

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