Title:
SECURITY FEATURE ON THE BASIS OF LUMINESCENT SUBSTANCES
Document Type and Number:
WIPO Patent Application WO/2010/040543
Kind Code:
A3
Abstract:
To protect the authenticity or genuineness of a valuable or security document on the basis of luminescent substances, the invention discloses a security feature on the basis of luminescent substances, a valuable or security document comprising a security feature of this type and a method and a device for verifying a security feature of this type. The security feature is formed by substances with a first luminescence and substances with a second luminescence. The first luminescence is broad-band and the second luminescence is narrow-band. The visual colour impression of the security feature and the total intensity of the luminescence are determined by the spectrally broad-band first luminescence when the substances are excited to luminesce.
Inventors:
KUNATH CHRISTIAN (DE)
SPRINGMANN EDWARD (DE)
SPRINGMANN EDWARD (DE)
Application Number:
PCT/EP2009/007272
Publication Date:
July 29, 2010
Filing Date:
September 30, 2009
Export Citation:
Assignee:
BUNDESDRUCKEREI GMBH (DE)
KUNATH CHRISTIAN (DE)
SPRINGMANN EDWARD (DE)
KUNATH CHRISTIAN (DE)
SPRINGMANN EDWARD (DE)
International Classes:
B42D15/00; B42D15/10
Domestic Patent References:
| WO2005035261A1 | 2005-04-21 | |||
| WO2005035271A2 | 2005-04-21 |
Foreign References:
| CH498468A | 1970-10-31 | |||
| US20070154687A1 | 2007-07-05 |
Attorney, Agent or Firm:
BRESSEL, Burkhard (Park KolonnadenPotsdamer Platz 10, Berlin, DE)
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