| 发明名称 |
On-axis control over scanning beam spot size and shape in electro-optical readers |
| 摘要 |
A cylindrical lens is axially moved along an optical axis to control a shape and size of a laser beam spot that is scanned across a symbol to be read by an electro-optical reader.
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| 申请公布号 |
US2004238638(A1) |
申请公布日期 |
2004.12.02 |
| 申请号 |
US20030452352 |
申请日期 |
2003.06.02 |
| 申请人 |
GOFMAN YURI;GUREVICH VLADIMIR;KRICHEVER MARK |
发明人 |
GOFMAN YURI;GUREVICH VLADIMIR;KRICHEVER MARK |
| 分类号 |
G06K7/10;(IPC1-7):G06K7/10;G02B5/00 |
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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