Patent · US Active

Optical coding device by plasmon effect and authentication method using the device

US7863584B2 · kind B2 · utility

43Cited by

4References

21Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Francois Tardif · Le Pont-de-Claix, FR
Olivier Raccurt · Laval, FR
Céline Noel · Grenoble, FR

Key dates

Filing date	Oct 31, 2007
Grant date	Jan 4, 2011
Priority date	—
Expiry date	Oct 31, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/26
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

This optical coding device comprises a plurality of aggregates suitable for emitting infrared, visible or ultraviolet rays by luminescence, at least one of the said aggregates comprising at least one luminophore. This aggregate further comprises at least one particle consisting of a surface plasmon effect material, the said luminophore and the said particle being suitable for entering into interaction.

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