Ophthalmic lens having an extended depth of focus

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United States of America Patent

PATENT NO 9968440
SERIAL NO

15055993

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Abstract

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In certain embodiments, an ophthalmic lens includes an optic having an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface includes a first zone extending from the optical axis to a first radial boundary and a second zone extending from the first radial boundary to the edge of the optic. The first zone includes an inner region and an outer region separated by a phase shift feature, the phase shift comprising a ridge extending outwardly from the inner region and the outer region.

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Patent Owner(s)

Patent OwnerAddress
ALCON INCFRIBOURG FREIBURG FRIBOURG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hong, Xin Fort Worth, US 88 2033
Milanovic, Zoran Fort Worth, US 4 11
Wei, Xin Frisco, US 72 1102

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