Optical device with surface texturing extending through coating layer into substrate
US12392934B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Oct 26, 2020 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Nov 12, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/208
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device for transmitting/reflecting electromagnetic radiation in a wavelength range of an electromagnetic spectrum. The optical device includes a substrate made of a first material, a coating layer made of a second material that is different from the first material, and a a plurality of cavities formed in surface of the device. The plurality of cavities extend through the coating layer and are partially sunk into the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.