发明名称 |
Two position zoom lens assembly for an imaging-based bar code reader |
摘要 |
An imaging-based bar code reader including: an imaging system for imaging a target bar code within a field of view of the imaging system and projecting light from the field of view onto a sensor array, the imaging system generating image frames of the field of view of the imaging system; the imaging systems including an imaging lens assembly having a plurality of lens and a selection drive mechanism to select between a first optical zoom position defining a first focal length and a first field of view for imaging a target bar code at a close range and a second optical zoom position defining a second focal length and a second field of view for imaging a target bar code at a far range, the second focal length being greater than the first focal length.
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申请公布号 |
US7762466(B2) |
申请公布日期 |
2010.07.27 |
申请号 |
US20080337748 |
申请日期 |
2008.12.18 |
申请人 |
SYMBOL TECHNOLOGIES, INC. |
发明人 |
TAN CHINH;GUREVICH VLADIMIR;LIU RONG;SHI TSI DAVID;VINOGRADOV IGOR;YU MING |
分类号 |
G06K7/10;G06K7/00 |
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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