Shaped ophthalmic lenses

Details Shaped ophthalmic lenses Shaped ophthalmic lenses

G - Physics

02

C

G02C 7/02 (2006.01) G02B 3/00 (2006.01)

Patent

CA 2292909

An optical lens element including a first surface; and a second surface of complementary curvature; at least one surface exhibiting significant deviation in curvature from a standard optical surface; the first and second surfaces in combination defining an optical zone exhibiting substantially constant mean through power along at least one meridian.

L'invention concerne un élément de lentille optique comprenant une première surface et une seconde surface présentant une courbure complémentaire. La courbure d'au moins une surface présente une déviation sensible par rapport à une surface optique normale. La première et la seconde surface combinées définissent une zone optique présentant une puissance moyenne de traversée sensiblement constante le long d'au moins un méridien.

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