Title:
SECURITY LABEL
Document Type and Number:
WIPO Patent Application WO2003007276
Kind Code:
A3
Abstract:
This invention relates to a security label for the detection of counterfeiting and tampering. The invention comprises a combination of an iridescent laminated or multilayered material with a lenticular layer. The iridescent layer exhibits an angular dependence in its coloration in reflection and/or transmission and the lenticular layer acts as a filter to light of a given angle of incidence.
Inventors:
LAWRENCE CHRISTOPHER ROBERT (GB)
O'KEEFE EOIN SEIORSE (GB)
O'KEEFE EOIN SEIORSE (GB)
Application Number:
PCT/GB2002/003043
Publication Date:
July 10, 2003
Filing Date:
July 02, 2002
Export Citation:
Assignee:
QINETIQ LTD (GB)
LAWRENCE CHRISTOPHER ROBERT (GB)
O'KEEFE EOIN SEIORSE (GB)
LAWRENCE CHRISTOPHER ROBERT (GB)
O'KEEFE EOIN SEIORSE (GB)
International Classes:
G09F3/02; (IPC1-7): G09F3/02
Foreign References:
| US4608288A | 1986-08-26 | |||
| US4268983A | 1981-05-26 | |||
| US5135262A | 1992-08-04 |
Other References:
See also references of EP 1407438A2
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