Patent · US Active

Method and apparatus for manufacturing photonic crystals

US11473213B2 · kind B2 · utility

0Cited by

0References

18Claims

0Family size

Assignee

D. Swarovski KG · AT

Inventors

Christian Gabl · Kematen, AT
Christian Lipp · Ladiz-Alpe, AT
Nina Stepanik · Wattens, AT
Christina Streiter · Wattens, AT
Roy Layne Howell · Gainesville, US
Georg Czermak · Wattens, AT
Matthias Gander · Landeck, AT
Wolfgang Stiglitz · Rum, AT

Key dates

Filing date	Dec 28, 2018
Grant date	Oct 18, 2022
Priority date	—
Expiry date	Dec 28, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/1225
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method of making a liquid dispersion for the manufacture of a photonic crystal. The method comprises dispersing monodispersed spheres in a liquid to form a liquid dispersion, and subjecting the liquid dispersion to an ultrasonic treatment. Ammonia solution may also be added to the liquid dispersion. The ultrasound treatment breaks up agglomerations of monodispersed spheres, and the resulting photonic crystal made using the dispersion is more highly ordered and hence of higher quality.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.