Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1989-03-02
1990-09-18
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 17, 264 23, 264 25, 264 22, 264225, 264338, B29C 3340, B29C 3910, B29D 1100
Patent
active
049576631
ABSTRACT:
A method of manufacturing components such as optical components (17, 18, 21, FIG. 2C) by means of a matrix which comprises a preform 12 of glass or quartz and has a skin 14 of a cured epoxy synthetic resin, the surface of which is the negative of a metal mold from which the matrix is produced. The matrix is suitable for use in the above-mentioned method, whereby optical components are produced which have surfaces that are for example, the aspherical negatives of the matrix surface.
REFERENCES:
patent: 4432832 (1984-02-01), Fantone
patent: 4566930 (1986-01-01), Uehara
patent: 4657354 (1987-04-01), Kobayashi
Amendt Herman M. A.
Verhoeven Johannes M. G.
Zwiers Renso J. M.
Bartlett Ernestine C.
Lowe James
U.S. Philips Corp.
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