ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The theoretical researches on fabrication, measurement and identification of lasermarking system of 3D(three-dimension) anti-counterfeiting identifiers have been done in this paper.3D identifiers were fabricated and 3D identifiers’ modelings were reconstructed, and binary codingof gray images were encoded by programmable control of liquid crystal mask, spatial modulating oflaser beam and photolithography fabrication technics. We regarded the depth of 3D identifiers asanti-counterfeiting information, and the original marking data and anti-counterfeiting informationare saved in remote database server by database technology and computer network technology,sotrue produces can be distinguished from fake through network. The basic theory of 3Dnondestructive anti-counterfeiting identifiers based on liquid crystal mask was built, and a newtechnology of creating 3D anti-counterfeiting identifiers by laser shock wave was set up, whichdiffers entirely from marking by laser ablation (or laser thermal effect). A new high-efficiencytheory of detecting and identifying on 3D anti-counterfeiting identifiers by 3D identifiers’reconstruction and binary coding was set up. The study enriches dynamic plastic deformation theoryof partial high-strain-rate and anti-counterfeiting design & manufacturing theory which is also ahighlight based on advanced manufacturing theory of mechanical effect on laser shock wave
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.532-533.600.pdf
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