Method of manufacturing a transparent and birefringent thin solid mineral layer and optic component with a transparent and birefringent thin solid mineral layer
US9389353B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 23, 2013 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Jul 23, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of fabricating a transparent and birefringent mineral solid thin layer comprises the following steps: a) preparing a colloidal solution constituted by anisotropic mineral nanoparticles in suspension in a dispersion liquid; b) depositing the colloidal solution on a surface of a substrate by spreading as a thin layer while applying directional shear stress tangentially to the surface of the substrate so as to deposit the colloidal solution as a liquid thin layer on the surface of the substrate, the value of the shear stress and the concentration of mineral nanoparticles in the colloidal solution being determined in such a manner as to cause the anisotropic mineral nanoparticles to be aligned along the direction of the shear stress tangential to the surface of the substrate; and c) drying the liquid thin layer by evaporating the dispersion liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.