发明名称 |
Device and method for optically identifying objects. |
摘要 |
<p>An identification code provided in relief on an object is read in that a radiation beam is obliquely incident on the surface on which the identification code is provided, and in that the identification code is observed by a detection system by means of the shadows thus cast.</p> |
申请公布号 |
EP0240078(A1) |
申请公布日期 |
1987.10.07 |
申请号 |
EP19870200561 |
申请日期 |
1987.03.24 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
VAN HULZEN, GEERHARD;VOSKUILEN, LOTH |
分类号 |
B07C5/34;G06K7/10;G06T1/00;(IPC1-7):B07C5/34 |
主分类号 |
B07C5/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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