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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Sprache: | eng ; fre |
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Zusammenfassung: | 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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