Method of determining the blocking position of an optical lens
US-9791719-B2 · Oct 17, 2017 · US
Method of designing progressive addition lenses
US8992013B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8992013-B2 |
| Application number | US-99046809-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 30, 2009 |
| Priority date | Apr 30, 2008 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
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Embodiments of the invention pertain to a method for producing a spectacle lens with optimal correction across the entire lens taking into account the patient's complete measured wavefront. Specific embodiments can also take into account one or more additional factors such as vertex distance, segmental fitting height, pantoscopic tilt, and use conditions. The lens wavefront can be achieved by optimizing a corrected wavefront, where the corrected wavefront is the combined effect of the patient's measured wavefront and the lens wavefront. The optimization of the corrected wavefront can involve representing the measured wavefront and the lens wavefront on a grid. In an embodiment, the grid can lie in a plane. During the optimization, a subset of the grid can be used for the representation of the measured wavefront at a point on the grid so as to take into account the portions of the measured wavefront that contribute to the corrected wavefront at that point on the grid.
First claim
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We claim: 1. A method for designing a progressive addition lens comprising: generating a wavefront fitting optimization that takes into account: (a) a target sphere contour map, (b) a target cylinder map, (c) a sphere weighting contour map, and (d) a cylinder weighting map, wherein an output of the wavefront fitting optimization is a progressive addition surface of a progressive addition lens for a patient; and forming the progressive addition lens for the patient tak…
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- G02C7/068Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US8992013B2 cover?
- Embodiments of the invention pertain to a method for producing a spectacle lens with optimal correction across the entire lens taking into account the patient's complete measured wavefront. Specific embodiments can also take into account one or more additional factors such as vertex distance, segmental fitting height, pantoscopic tilt, and use conditions. The lens wavefront can be achieved by o…
- Who is the assignee on this patent?
- Dillon Keith, Chomyn Jeffrey S, Kusumoto Kris, and 4 more
- What technology area does this patent fall under?
- Primary CPC classification G02C7/068. 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).