Patent classifications
G
PHYSICS
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G03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
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G03H
HOLOGRAPHIC PROCESSES OR APPARATUS
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2260/00
Recording materials or recording processes
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G03H2260/50
Reactivity or recording processes
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G03H2260/52
Photochromic reactivity wherein light induces a reversible transformation between two states having different absorption spectra
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G03H2260/52

Security document and/or document of value containing a visually changeable window with a hologram
09658595 · 2017-05-23 · ·

The present invention relates to a security document and/or document of value with a hologram in a visually changeable window as a novel security element, and also to a method for producing the same.