Invention Grant
US07648074B2 Article, especially valuable and security document, comprising a security feature
有权
文章，特别有价值和安全的文件，包括一个安全功能
- Patent Title: Article, especially valuable and security document, comprising a security feature
- Patent Title (中): 文章，特别有价值和安全的文件，包括一个安全功能
-
Application No.: US10495654Application Date: 2002-11-19
-
Publication No.: US07648074B2Publication Date: 2010-01-19
- Inventor: Thomas Attenberger , Wolfgang Deckenbach , Rainer Hoppe
- Applicant: Thomas Attenberger , Wolfgang Deckenbach , Rainer Hoppe
- Applicant Address: DE Munich
- Assignee: Giesecke & Devrient GmbH
- Current Assignee: Giesecke & Devrient GmbH
- Current Assignee Address: DE Munich
- Agency: Rothwell, Figg, Ernst & Manbeck, P.C.
- Priority: DE10156852 20011120
- International Application: PCT/EP02/12959 WO 20021119
- International Announcement: WO03/043830 WO 20030530
- Main IPC: G06K19/06
- IPC: G06K19/06
Abstract:
A value or security document (2) contains a security feature (4) in the form of a film laser with an emitter layer (12) and preferably a protective layer (14). A spatial, periodic modulation (8), preferably of the surface of a substrate, permits fine adjustment of a laser wavelength within a range of possible wavelengths. This permits a coding of the security feature by different portions of different wavelengths.
Public/Granted literature
- US20050051635A1 Article, especially valuable and security document, comprising a security feature Public/Granted day:2005-03-10
Information query
