Item comprising an organic-inorganic layer with a low refractive index
US12305271B2 · kind B2 · utility
0Cited by
5References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 6, 2021 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Jul 6, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/115
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention relates to an article comprising a substrate having at least one main surface coated with a layer L of a material M obtained by vacuum deposition, by co-evaporation, of at least one metallic compound A chosen from alkaline-earth metal fluorides and of at least one organic compound B, the material M having a refractive index at the wavelength of 632.8 nm ranging from 1.38 to 1.47. According to the invention:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.