Die for press-molding optical elements

Details Die for press-molding optical elements Die for press-molding optical elements

1994-07-28

1997-12-23

Griffin, Steven P.

Glass manufacturing

Apparatus made of special material

Metallic

6537411, 6537412, 6537413, 65286, 65 26, 249116, 249135, 425808, C03B 1106

Patent

active

057003076

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:
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patent: 4391622 (1983-07-01), Alting et al.
patent: 4685948 (1987-08-01), Kuribayashi et al.
patent: 4721518 (1988-01-01), Monji et al.
patent: 4921519 (1990-05-01), Schinker et al.
patent: 5026415 (1991-06-01), Yamamoto et al.
patent: 5171348 (1992-12-01), Umetani et al.
patent: 5380349 (1995-01-01), Taniguchi et al.
Theodore L. Brown et al., Chemistry: The Central Science, 2nd Edition, pp. 44-46 and 150-157, Copyright 1981.

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