发明名称 |
METHOD, DIAPHRAGMS AND OPTICAL RECEIVING DEVICES FOR IMPROVING THE DEPTH OF FIELD IN A LINEAR OPTICAL CODE READER |
摘要 |
A method for improving the depth of field in the detection of a linear optical code includes simultaneously forming two or more overlapped equally focused but differently diaphragmed in phase images of an optical code onto a linear sensor. Diaphragms and optical receiving devices suitable to implement the method are described.
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申请公布号 |
US2007119942(A1) |
申请公布日期 |
2007.05.31 |
申请号 |
US20060277809 |
申请日期 |
2006.03.29 |
申请人 |
DATALOGIC S.P.A. |
发明人 |
BARSOTTI STEFANO;VINCENZI DONATO |
分类号 |
G06K7/10 |
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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