| 发明名称 |
OPTICALLY-BASED METHODS AND APPARATUS FOR PERFORMING DOCUMENT AUTHENTICATION |
| 摘要 |
A method for authenticating a document (10). The method includes the steps of: (a) providing a document (10) to be authenticated; (b) illuminating at least a portion (12) of the document with laser light (14) that exceeds a threshold fluence; (c) detecting (16) a narrow band laser-like emission of at least one wavelength from the document in response to the step of illuminating (14); and (d) declaring the document to be authentic only if the laser-like emission is detected.
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| 申请公布号 |
WO9845803(A1) |
申请公布日期 |
1998.10.15 |
| 申请号 |
WO1998US06330 |
申请日期 |
1998.03.31 |
| 申请人 |
BROWN UNIVERSITY RESEARCH FOUNDATION |
发明人 |
LAWANDY, NABIL, M.;DRISCOLL, TIMOTHY, J. |
| 分类号 |
H01S3/10;A61B17/22;A61N5/06;C40B60/14;D06F93/00;G01N21/01;G01N21/63;G06T1/00;G07D7/12;H01S3/06;H01S3/0941;H01S3/14;H01S3/16;H01S3/20;H01S3/213;H01S5/00;H01S5/04;H01S5/30;(IPC1-7):G06K9/74 |
主分类号 |
H01S3/10 |
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