G - Physics – 02 – C
Patent
G - Physics
02
C
G02C 7/04 (2006.01) B29D 11/00 (2006.01)
Patent
CA 2292355
A contact lens and a method of manufacturing a contact lens having areas of different thickness, the contact lens being compensated for differential shrinkage during the manufacturing process. The unwanted toricity induced by the differential shrinkage caused by a particular manufacturing process is experimentally determined, both in terms of angular position and power. The lens compensation is achieved by providing an equal and opposite power to the unwanted toricity induced by the manufacturing process.
Clutterbuck Timothy A.
Neadle Susan
Johnson & Johnson Vision Care Inc.
Johnson & Johnson Vision Products Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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