Patent · US Active

Method for concealing a synthetic hologram in a binary image

US9208533B2 · kind B2 · utility

0Cited by

8References

18Claims

0Family size

Assignee

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

Inventor

Christophe Martinez · Grenoble, FR

Key dates

Filing date	Sep 8, 2011
Grant date	Dec 8, 2015
Priority date	—
Expiry date	May 19, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG03H2223/13
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to a synthetic hologram (64A) comprising first elementary cells wherein first openings are respectively defined, said hologram being integrated into a first portion of a binary motif (60), said binary motif comprising at least one second portion wherein second elementary cells comprising second openings (66) are defined, said second openings having an average size equal to the average size of the first openings, with a 5% margin, and a random phase shift.

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