Method for determining to which extent a lens design is adapted to a user
US-11982879-B2 · May 14, 2024 · US
Method for calculating a spectacle lens with improved near zone
US8992014B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992014-B2 |
| Application number | US-201113990202-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 6, 2011 |
| Priority date | Nov 30, 2010 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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Optimization and production of a spectacle lens for a specific wearing situation for correcting at least one astigmatic refraction of an eye of a spectacles wearer, which in a reference viewing direction of the eye has a cylinder reference value and a cylinder reference axis, comprising: specifying an object distance for at least one evaluation point of the spectacle lens; determining a transformed astigmatic refraction for the at least one evaluation point of the spectacle lens from the cylinder reference value and the cylinder reference axis depending on the specified object distance; and optimizing the spectacle lens such that for the at least one evaluation point a correction of the transformed astigmatic refraction by the spectacle lens in the specific wearing situation is taken into consideration, wherein determining the transformed astigmatic refraction comprises determining a transformed cylinder value and/or a transformed cylinder axis depending on the specified object distance.
First claim
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The invention claimed is: 1. A method for optimizing and producing a spectacle lens for a specific wearing situation for correcting at least one astigmatic refraction of an eye of a spectacles wearer, which in a reference viewing direction −e z of the eye has a cylinder reference value Z 0 and a cylinder reference axis α 0 , comprising a calculation and optimization step of the spectacle lens, the method comprising: specifying an object distance a i for at least one evaluation…
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- What does patent US8992014B2 cover?
- Optimization and production of a spectacle lens for a specific wearing situation for correcting at least one astigmatic refraction of an eye of a spectacles wearer, which in a reference viewing direction of the eye has a cylinder reference value and a cylinder reference axis, comprising: specifying an object distance for at least one evaluation point of the spectacle lens; determining a transfo…
- Who is the assignee on this patent?
- Esser Gregor, Becken Wolfgang, Altheimer Helmut, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification G02C7/027. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 31 2015 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).