Method of manufacturing a die for press-molding optical elements

Details Method of manufacturing a die for press-molding optical elements Method of manufacturing a die for press-molding optical elements

1996-03-29

1999-12-21

Meeks, Timothy

Glass manufacturing

Processes

Utilizing parting or lubricating layer

65 591, 65286, 65305, 653741, 6537411, 6537412, 6537413, 20419215, 20419216, 20419226, 427528, 427531, 42724917, 427250, 42725511, 42725531, 427255394, 427304, 427305, C23C 1606

Patent

active

060033363

ABSTRACT:
A die for press-molding glass optical elements which can press-mold glass optical elements having high melting points and various shapes repeatedly, which includes a base material having high strength on which a cutting layer having heat resistance and free cutting machinability is formed. After cutting the cutting layer into the desired shape with high accuracy, the die is coated with a surface protective film.

REFERENCES:
patent: 4391622 (1983-07-01), Alting et al.
patent: 4721518 (1988-01-01), Monji et al.
patent: 5171348 (1992-12-01), Umetani et al.
European Search Report dated Oct. 13, 1995.

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