Multifocal lens
US-9223148-B2 · Dec 29, 2015 · US
Pupil dependent diffractive lens for near, intermediate, and far vision
US9304329B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9304329-B2 |
| Application number | US-201313919798-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 17, 2013 |
| Priority date | Dec 7, 2010 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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Abstract
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A multifocal diffractive lens comprises a multifocal diffractive structure coupled to a refractive component. The refractive component comprises at least one curved surface. The multifocal diffractive structure comprises a first plurality of substantially monofocal echellettes having a first optical power for near vision correction and a second plurality of substantially monofocal echellettes for far vision correction. The first plurality of substantially monofocal echellettes combined with the second plurality of substantially monofocal echellettes can provide a multifocal diffractive profile having decreased light scatter, chromatic aberration, and diffraction to non-viewing orders such that dysphotopsia is substantially inhibited. A third plurality of substantially monofocal echellettes having an intermediate optical power can be combined with the first plurality of substantially monofocal echellettes and the second plurality of substantially monofocal echellettes.
First claim
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What is claimed is: 1. A method of correcting vision of an eye, the method comprising: placing a lens along an optical path of the eye, the lens comprising at least one curved surface coupled to a diffractive structure, the diffractive structure comprising a first plurality of substantially monofocal echellettes having a first optical power for a near vision correction and a second plurality of substantially monofocal echellettes having a second optical power for a far vision corr…
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- What does patent US9304329B2 cover?
- A multifocal diffractive lens comprises a multifocal diffractive structure coupled to a refractive component. The refractive component comprises at least one curved surface. The multifocal diffractive structure comprises a first plurality of substantially monofocal echellettes having a first optical power for near vision correction and a second plurality of substantially monofocal echellettes f…
- Who is the assignee on this patent?
- Abbott Medical Optics Inc
- What technology area does this patent fall under?
- Primary CPC classification G02C7/041. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).