Dynamic reproduction method for grating encrypted message

The invention belongs to the technical field of anti-forgery, which aims to provide a dynamic reproduction method for a grating encrypted message. The dynamic reproduction method for the grating encrypted message specifically comprises the following steps: manufacturing a group of continuously chang...

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Bibliographic Details
Main Author ZHANG SHUSEN
Format Patent
LanguageChinese
English
Published 08.02.2012
Subjects
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHIC PROCESSES OR APPARATUS
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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Summary:The invention belongs to the technical field of anti-forgery, which aims to provide a dynamic reproduction method for a grating encrypted message. The dynamic reproduction method for the grating encrypted message specifically comprises the following steps: manufacturing a group of continuously changed images into diffraction grating patterns which conceal original image information by information encryption; combining the diffraction grating patterns by taking the diffraction grating patterns as optical plane elements; manufacturing the diffraction grating patterns on a logo (such as a laser holographic logo) of a plastic substrate in an embossment structure form, wherein human eyes cannot identify the patterns; and combining the optical plane elements to obtain continuous encryption information. When laser reproduction is carried out, a laser beam scans and moves on the combined optical plane elements, and the reproduced patterns can dynamically reproduce continuously changed images. For example, in a pictur
Bibliography:Application Number: CN20101242748