Method of manufacturing a nanostructured spectral filter
US10014337B2 · kind B2 · utility
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29Claims
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Key dates
| Filing date | Sep 29, 2016 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | Sep 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/101
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A spectral filter is manufactured using a process wherein a first rectangular bar is formed within a first layer made of a first material, said first rectangular bar being made of a second material having a different optical index. The process further includes, in a second layer over the first layer, a second rectangular bar made of the second material. The second rectangular bar is positioned in contact with the first rectangular bar. The second layer is also made of the first material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.