Method for controlling attenuation of an optical element
US7239790B2 · kind B2 · utility
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4References
20Claims
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Key dates
| Filing date | Jun 23, 2005 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Nov 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/205
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for controlling the attenuation of an optical element. A base material, such as a resin, is selected from which to fabricate the optical element. The base material has an intrinsic attenuation or intrinsic absorption spectrum. A predetermined concentration of a first type of dye molecule is then added to the base material to vary the intrinsic attenuation of the base material to achieve a predetermined absorption spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.