ENCODED BADGE HOLOGRAMS
24 ENCODED BADGE HOLOGRAMS An encoded hologram that produces a first image and a second image pursuant to playback illumination, wherein the first image is resolvable by human vision is resolvable by human vision while the second image is not resolvable by human vision when the playback illumination...
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| creator | YU, KEVIN UPPER, RICHARD B YIN, LILLIAN VIRGADAMO, MICHAEL J SCOTT, JAMES E GUNTHER, JOHN E WREEDE, JOHN E MULDER, JERRY L |
| description | 24 ENCODED BADGE HOLOGRAMS An encoded hologram that produces a first image and a second image pursuant to playback illumination, wherein the first image is resolvable by human vision is resolvable by human vision while the second image is not resolvable by human vision when the playback illumination comprises noncoherent broad band illumination, and wherein the second image is machine readable when the hologram is illuminated with playback illumination that is based on the original reference beam. |
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| language | eng ; fre |
| recordid | cdi_epo_espacenet_CA2130310A1 |
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| subjects | BOOK COVERS BOOKBINDING CALCULATING CINEMATOGRAPHY COMPUTING COUNTING DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR ELECTROGRAPHY FILES HANDLING RECORD CARRIERS HOLOGRAPHIC PROCESSES OR APPARATUS HOLOGRAPHY LOOSE LEAVES MOVABLE-STRIP WRITING OR READING APPARATUS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR RECOGNITION OF DATA RECORD CARRIERS SPECIAL PRINTED MATTER TRANSPORTING |
| title | ENCODED BADGE HOLOGRAMS |
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