发明名称 |
Multiple range indicia reader with single trigger actuation |
摘要 |
A method of operating an indicia reader for reading information bearing indicia (IBI) positioned in a field of view of the reader includes: transmitting a first laser light beam adapted for scanning an IBI on a target located a first distance from the indicia reader; transmitting a second laser light beam adapted for scanning an IBI on a target located a second distance greater than the first distance from the indicia reader; activating at least one of the first and second laser light beams; scanning at least one of the laser light beams with a flat unitary scan mirror to generate at least one of a first laser light beam pattern and a second laser light beam pattern; directing light reflected from the target from either the first or second laser light beams patterns through a common receive path; the common receive path including being reflected with the flat unitary scan mirror onto a focusing mirror; the focusing mirror directing reflected light along a directed reflected light path; the directed reflected light path including an optical filter outputting directed reflected light; converting the directed reflected light into an output signal with a photodetector; decoding IBI information derived from the output signal, wherein the operating steps are completed by devices supported in a hand held indicia reader housing and wherein an operator selectively activates the first laser light beam and/or the second laser light beam with a single action trigger. |
申请公布号 |
US8177134(B2) |
申请公布日期 |
2012.05.15 |
申请号 |
US20100840499 |
申请日期 |
2010.07.21 |
申请人 |
HAVENS WILLIAM H.;WANG YNJIUN PAUL;PLESKO GEORGE ARTHUR;ANDERSON DONALD;HAND HELD PRODUCTS, INC. |
发明人 |
HAVENS WILLIAM H.;WANG YNJIUN PAUL;PLESKO GEORGE ARTHUR;ANDERSON DONALD |
分类号 |
G06K7/10;H02P1/00 |
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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