Metal-dielectric optical filter, sensor device, and fabrication method
US12366692B2 · kind B2 · utility
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51References
20Claims
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Key dates
| Filing date | Jul 10, 2023 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Jul 10, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/8053
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical filter, a sensor device including the optical filter, and a method of fabricating the optical filter are provided. The optical filter includes one or more dielectric layers and one or more metal layers stacked in alternation. The metal layers are intrinsically protected by the dielectric layers. In particular, the metal layers have tapered edges that are protectively covered by one or more of the dielectric layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.