发明名称 |
SENSOR FOR CHECKING VALUE DOCUMENTS |
摘要 |
The invention relates to a sensor for checking value documents with a detection device having at least two photodetectors through which the detection light of the value document is detectable in at least two different spectral regions. The detection device contains a collecting optic common to the photodetectors, through which the detection light emitted by the value document in a detection region can be collimated to a light beam. Each of the photodetectors has associated therewith a detector lens which receives a partial light beam of the light beam collimated by the collecting optic and directs it onto the respective photodetector, so that the detection region substantially coincides for the different photodetectors. By the sensor there can be detected different spectral portions of the detection light of the same detection region separately from each other at the same point in time. |
申请公布号 |
EP2773928(A1) |
申请公布日期 |
2014.09.10 |
申请号 |
EP20120787369 |
申请日期 |
2012.10.31 |
申请人 |
GIESECKE & DEVRIENT GMBH |
发明人 |
DECKENBACH, WOLFGANG;PHILIPP, ACHIM;EHRL, HANS-PETER |
分类号 |
G01J3/28;G01J3/02;G01J3/36;G01J3/51;G07D7/12 |
主分类号 |
G01J3/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|