Invention Grant
- Patent Title: IOL with varying correction of chromatic aberration
- Patent Title (中): IOL具有变化的色差校正
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Application No.: US12780381Application Date: 2010-05-14
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Publication No.: US08709079B2Publication Date: 2014-04-29
- Inventor: Xiaoxiao Zhang , Costin Eugene Curatu , Krishnakumar Venkateswaran , Daniel Robert Carson , Mutlu Karakelle , Xin Hong , Yueai Liu
- Applicant: Xiaoxiao Zhang , Costin Eugene Curatu , Krishnakumar Venkateswaran , Daniel Robert Carson , Mutlu Karakelle , Xin Hong , Yueai Liu
- Applicant Address: CH Basel
- Assignee: Novartis AG
- Current Assignee: Novartis AG
- Current Assignee Address: CH Basel
- Agent Jonathan E. Prejean
- Main IPC: A61F2/16
- IPC: A61F2/16 ; G02C7/00

Abstract:
An ophthalmic lens includes an optical filter operable to filter out at least visible light having a wavelength less than 450 nm. The lens also includes a first diffractive structure adapted to produce a focus for visible light in a first wavelength range above 550 nm and to reduce longitudinal chromatic aberration to less than one diopter for incoming visible light in the first wavelength range. The lens also includes a second diffractive structure outside the first diffractive structure in a radial direction and adapted to produce a focus for visible light in a second wavelength range between 450 nm and 550 nm. The second diffractive structure is also adapted to reduce longitudinal chromatic aberration for incoming visible light in the second wavelength range to less than one diopter while allowing longitudinal chromatic aberration in the first wavelength range in an amount greater than the first diffractive structure.
Public/Granted literature
- US20100312337A1 IOL WITH VARYING CORRECTION OF CHROMATIC ABERRATION Public/Granted day:2010-12-09
Information query
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