Mold for molding optical element

Details Mold for molding optical element Mold for molding optical element

1995-05-30

1998-01-27

Griffin, Steven P.

Glass manufacturing

Preform reshaping means

65305, 653741, 6537413, 6537415, 65 26, 425808, 2491141, 249115, 106 3828, C03B 1108, C03B 4000, B29C 3356

Patent

active

057117802

ABSTRACT:
A mold for press molding an optical element of glass has carbon atoms injected in amounts from 10.sup.15 to 10.sup.18 ion/cm.sup.2 into a molding surface of a mold base of the mold and subjected to further treatment to form on the molding surface a diamond film, a hydrogenated amorphous carbon film, a hard carbon film or a mixture of at least two such films. The film on the molding surface can be formed by heat treatment and, additionally, by irradiation with hydrogen plasma, after carbon ion injection.

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