Ophthalmic device formed by additive fabrication and method thereof
US11287672B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Aug 22, 2018 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Aug 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An ophthalmic device is formed by additive fabrication, the optical device having an optical surface with a surface roughness on the order of less than 10 microns. A method is provided for making an ophthalmic device including an optical surface having a surface roughness of less than 10 microns by depositing on a stage in a first relative position a first lamina of particulates having a size less than 10 microns and in select configurations less than two microns and certain configurations less than one micron, and, synergistically stimulating the first lamina of particulates to form a first solidified layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.