发明名称 |
Data reader and reader system having visible centerless targeting |
摘要 |
A data reader has a digital image detector an optical system imaging on the digital image detector, and a marker beam source that emits a diverging, centerless visible light projection. A data reading system includes the data reader and media bearing: a visible primary image and a secondary image overlying the visible image. The secondary image is transparent to visible radiation and modulates a band of invisible electromagnetic radiation. The media also bears visible indicia aligned with the secondary image.
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申请公布号 |
US6191406(B1) |
申请公布日期 |
2001.02.20 |
申请号 |
US19980122502 |
申请日期 |
1998.07.24 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
NELSON DAVID J.;BRYANT ROBERT C.;LEIDIG CARL F. |
分类号 |
G06T1/00;G06K7/10;G06K19/06;(IPC1-7):G06K9/00 |
主分类号 |
G06T1/00 |
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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