发明名称 |
Optical collector for improving sensor signal uniformity over a target scan |
摘要 |
An optical collector collects relatively more of the off-axis light directed to a detector, and collects relatively less of the on-axis light directed to the detector, in order to decrease the variation in the amplitude of the electrical signal generated by the detector over a scan of target such as a bar code symbol in order to improve the performance of a bar code symbol reader.
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申请公布号 |
US6820810(B2) |
申请公布日期 |
2004.11.23 |
申请号 |
US20020287343 |
申请日期 |
2002.11.04 |
申请人 |
SYMBOL TECHNOLOGIES, INC. |
发明人 |
VINOGRADOV IGOR;KRICHEVER MARK;SHI DAVID TSI;GUREVICH VLADIMIR |
分类号 |
G06K7/10;(IPC1-7):G06K7/10;G06K7/14 |
主分类号 |
G06K7/10 |
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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