Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1995-01-10
1996-08-20
Vargot, Mathieu D.
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 25, 4251744, 425808, 425812, 425175, B29D 1100
Patent
active
055476180
ABSTRACT:
In a method of manufacturing an optical lens from a polymerizable synthetic material a lens molding assembly is provided including two molding shells and an annular closure member disposed around the molding shells and defining therewith a required molding cavity. The mold is filled with molding material and polymerization of the molding material is at least started. The operations of assembling the mold, filling it and at least starting polymerization of the molding material are conducted in the lens molding assembly.
REFERENCES:
patent: 2542386 (1951-02-01), Beattie
patent: 3297422 (1967-01-01), Emerson et al.
patent: 3605195 (1971-09-01), Campbell
patent: 3938775 (1976-02-01), Sarofeen
patent: 4257988 (1981-03-01), Matos et al.
Essilor International "Compagnie Generale d'Optique"
Vargot Mathieu D.
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