Method of manufacturing die and optical element performed by usi

Details Method of manufacturing die and optical element performed by usi Method of manufacturing die and optical element performed by usi

1995-12-11

1998-06-23

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Optical fiber, waveguide, or preform

216 24, 216 54, 216 67, 264 133, 264 25, 264219, 264220, 4251744, 425810, B44C 122

Patent

active

057701202

ABSTRACT:
A method of manufacturing a die for optical elements having a given construction on a relief type grating or the like is disclosed. The method includes the steps of: forming a workpiece film on a substrate; machining the workpiece film in a required configuration; subjecting the workpiece film machined in the required form and the substrate to etching to transfer the configuration of the workpiece film on the substrate analogously in the depth direction; and forming a die by using the etched substrate as a master matrix.

REFERENCES:
patent: 4619804 (1986-10-01), Leonard et al.
patent: 5008176 (1991-04-01), Kondo et al.
patent: 5116461 (1992-05-01), Lebby et al.
patent: 5234537 (1993-08-01), Nagano et al.
patent: 5238786 (1993-08-01), Kashiwagi
patent: 5298466 (1994-03-01), Brasseur
patent: 5417799 (1995-05-01), Daley et al.

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