Photonic balls containing a microstructure of core-shell particles exhibiting angularly-independent structural color
US9541674B2 · kind B2 · utility
6Cited by
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22Claims
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Key dates
| Filing date | May 23, 2014 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Dec 3, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/286
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photonic assembly for observing a preselected color includes an assembly of colloidal particles in a continuous liquid phase, the colloidal particles comprising a core scattering center and a shell layer surrounding the core, wherein the core scattering center is selected to scatter light having a predetermined wavelength, and wherein the shell has a thickness selected to provide an overall colloidal particle size that is about the same dimension as the wavelength of preselected color to be observed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.