Eyeglass manufacturing method using variable index layer
US7931368B2 · kind B2 · utility
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107References
7Claims
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Key dates
| Filing date | Jul 30, 2007 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Jul 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An eyeglass lens and manufacturing method using epoxy aberrator includes two lenses with a variable index material, such as epoxy, sandwiched in between. The epoxy is then cured to different indexes of refraction that provide precise corrections for the patient's wavefront aberrations. The present invention further provides a method to produce an eyeglass that corrects higher order aberrations, such as those that occur when retinal tissue is damaged due to glaucoma or macular degeneration. The manufacturing method allows for many different applications including, but not limited to, supervision and transition lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.