Patent · US Active

Stacking a visible image and a synthetic hologram

US8804221B2 · kind B2 · utility

1Cited by

2References

9Claims

0Family size

Assignee

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

Inventor

Christophe Martinez · Grenoble, FR

Key dates

Filing date	Oct 4, 2010
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Oct 4, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG03H2001/0858
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A synthetic hologram of a first image consists of an array of coding cells each comprising light and dark portions. A second visible image is superposed to the synthetic hologram, where the light and dark portions of selected coding cells in the second visible image are inverted and have a phase modified by an offset value relative to other coding cells of the rest of the hologram.

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