Method and apparatus for making plastic lenses

Details Method and apparatus for making plastic lenses Method and apparatus for making plastic lenses

B - Operations, Transporting

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B29D 11/00 (2006.01) B29C 33/00 (2006.01) B29C 35/04 (2006.01) B29C 39/26 (2006.01) B29C 39/38 (2006.01) B29C 51/00 (2006.01)

Patent

CA 1143518

AO-3413 METHOD AND APPARATUS FOR MAKING PLASTIC LENSES NWP:shp 1/10/79 ABSTRACT OF THE DISCLOSURE Volume production of cast resin lenses is accomplished with a debossed disposable molding strip having a multiplicity of lens casting cups of required diametral size, depth and surface shape. The cups are filled with a casting precursor, covered and subjected to resin curing temperatures. Final lens surface shapes are provided by machining through the molding strip into the cupped and cured resin.

340521

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