Repair method for optical elements having a coating and corresponding optical elements
US8795839B2 · kind B2 · utility
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7Claims
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Key dates
| Filing date | Jan 8, 2009 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Apr 28, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for repairing optical elements having a coating, in which the coating is fully or partially removed or left on the optical element, a polishing layer being provided in the coating or a polishing layer being applied, which allows simple processing of the surface to achieve high geometrical accuracy and lower surface roughness. A new coating is applied onto the corresponding polishing layer. Also addressed are corresponding optical elements, including optical elements recycled according to the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.