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