Composite ophthalmic lenses and their manufacture

Details Composite ophthalmic lenses and their manufacture Composite ophthalmic lenses and their manufacture

G - Physics

02

B

G02B 1/04 (2006.01) B29D 11/00 (2006.01) G02C 7/02 (2006.01)

Patent

CA 2084219

Abstract of the Invention This invention is directed to the fabrication of composite lenses consisting of a transparent thermoset polymer exhibiting an index of refraction of at least 1.58 and a thin glass element of essentially constant thickness adhered to the front surface of the polymer without the use of an adhesive, the glass element having a thickness not exceeding 0.3 mm and the thermoset polymer being an aromatic epoxy resin.

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