Patents for B29L 11 - Optical elements, e.g. lenses, prisms (3,629)
03/1985
03/26/1985US4507254 Light reflector apparatus and method of making
03/19/1985US4505222 Extrusion coating apparatus
01/1985
01/16/1985EP0131227A2 Process for manufacturing optical contact elements
12/1984
12/12/1984EP0128004A2 Copolymers of poly(vinyl trifluoroacetate) or poly(vinyl alcohol), process for preparing poly(vinyl alcohol) copolymers and process for preparing shaped articles from such copolymers.
12/06/1984WO1984004724A1 Tricurve hydrophilic contact lens and process of molding same
12/04/1984US4486363 Method and apparatus for embossing a precision optical pattern in a resinous sheet
06/1984
06/13/1984EP0110140A1 Method and apparatus for forming an optical connector
06/12/1984US4453828 Apparatus and methods for measuring the optical thickness and index of refraction of thin, optical membranes
10/1983
10/26/1983EP0092009A2 Improvements in or relating to optical cable elements
09/1983
09/13/1983CA1153516A1 Gasket for casting lenses
05/1983
05/31/1983CA1147121A1 Molding process and corresponding mold, specifically used to mold ophthalmic lenses made of an organic material
01/1982
01/19/1982US4311654 Controlling release of molded material from mold during curing
12/1981
12/15/1981CA1114115A1 Direct casting method for producing low-stress glass/plastic composites
11/1981
11/24/1981CA1112821A1 Contact lens casting method
10/1981
10/20/1981CA1110812A1 Flexible contact lens moulding apparatus
06/1981
06/09/1981US4272472 Method and apparatus for grooved section manufacture
12/1980
12/30/1980CA1092307A1 Lens-casting cell
10/1980
10/14/1980US4227673 Gasket for casting lenses
09/1980
09/03/1980EP0015181A1 Process for the moulding of articles from synthetic material
07/1980
07/08/1980US4211384 Molding assembly for casting soft contact lenses
06/1980
06/17/1980US4208362 Shaped body of at least two polymerized materials and method to make same
05/1980
05/28/1980EP0011539A1 Method and apparatus for the production of a multichannel cylindrical profile
03/1980
03/05/1980EP0008543A1 Method for moulding a videodisc composition
11/1979
11/06/1979CA1065655A1 Shaped body, such as a contact lens, of at least two polymerized materials and method of making same
08/1979
08/22/1979EP0003695A1 Mold assembly for molding a flexible contact lens
02/1979
02/27/1979US4141941 Contact lens casting method
11/1978
11/28/1978US4127638 Polytetrafluoroethylene tube, n-vinylpyrrolidone and an acrylate, polymerization catalyst
06/1978
06/06/1978US4093350 System for centrifugally casting a thin film plastic in a replica process for providing multi-faceted polygonal scanners
04/1978
04/25/1978US4085919 Lens-casting cell
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