Method and apparatus for coating a curved surface
US8059338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Feb 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/11
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method involves: determining a percentage by which a thickness of a layer of material, if applied by a selected coating apparatus to a curved surface on a selected optical component having an operating wavelength, would decrease from a central region of the curved surface to an edge region of the curved surface; formulating a multi-layer optical coating that will provide, in the central region of the curved surface, a specified optical performance characteristic for all radiation within a waveband extending from the operating wavelength to a further wavelength, where the further wavelength decreased by the percentage equals the operating wavelength; and using the selected coating apparatus to form the multi-layer optical coating on the curved surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.