Invention Grant
- Patent Title: Ophthalmic lens having an extended depth of focus
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Application No.: US15055993Application Date: 2016-02-29
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Publication No.: US09968440B2Publication Date: 2018-05-15
- Inventor: Xin Hong , Zoran Milanovic , Xin Wei
- Applicant: NOVARTIS AG
- Applicant Address: CH Basel
- Assignee: Novartis AG
- Current Assignee: Novartis AG
- Current Assignee Address: CH Basel
- Main IPC: A61F2/16
- IPC: A61F2/16 ; G02B27/00 ; G02C7/04 ; G02C7/06

Abstract:
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.
Public/Granted literature
- US20170245983A1 OPHTHALMIC LENS HAVING AN EXTENDED DEPTH OF FOCUS Public/Granted day:2017-08-31
Information query
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