Mold for press-molding glass optical elements and a molding meth

Details Mold for press-molding glass optical elements and a molding meth Mold for press-molding glass optical elements and a molding meth

1986-01-31

1987-08-11

Lindsay, Robert L.

Glass manufacturing

Processes

Utilizing parting or lubricating layer

6537411, 6537412, 65 36, 249116, C03B 4000

Patent

active

046859489

ABSTRACT:
A glass optical element is directly press-molded by a method using a noble mold. The mold comprises a base material and a press surface film formed on the base material. The press surface film is an Ir film, or a Ru film, or an alloy film comprising Ir and at least a member selected from the group consisting of Pt, Re, Os, Rh and Ru, or an alloy film comprising Ru and at least a member selected from the group consisting of Pt, Re, Os and Rh.

REFERENCES:
patent: 1466640 (1923-08-01), Coleman
patent: 3233993 (1966-02-01), Weidel
patent: 3657784 (1972-04-01), Selman et al.
patent: 3736109 (1973-05-01), Darling et al.

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