Structural colors having UV reflectance via spray layer-by-layer processing
US8313798B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 29, 2010 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Jan 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/208
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for fabricating a structural color having ultraviolet reflectance is provided. The process includes providing an atomizing nozzle, a first nanoparticle solution and a second nanoparticle solution. The atomizing nozzle is used to spray a plurality of first nanoparticle solution layers, the plurality of first nanoparticle layers forming a low index of refraction stack. In some instances, a polymer solution can be sprayed before and/or after the spraying of each first nanoparticle solution layer. The atomizing nozzle is also used to spray a plurality of second nanoparticle solution layers, the plurality of second nanoparticle layers form a high index of refraction stack. Similar to the first nanoparticle solution layers, a polymer solution can be sprayed before and/or after the spraying of each second nanoparticle solution layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.