发明名称 |
Optical code reader with devices to locate a code in a reading window |
摘要 |
An optical code reader is held in a hand of an operator and is brought near an article having a 2-dimensional code affixed thereto at the time of reading. The optical code reader includes a read window, a light source for illuminating an article via the read window, and a read control circuit for receiving light reflected by the article via the read window and detecting a 2-dimensional code from an image corresponding to the reflected light. The light source may include a guide beam projector for radiating guide light in a direction almost perpendicular to a read window plane, the guide light indicating a read range corresponding to the size of the read window on a plane parallel to the read window plane. Transparent cap may be provided at the read window for permitting a code on the article to be seen from the outside, while reducing external light entering the cap from the outside of the cap.
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申请公布号 |
US5689104(A) |
申请公布日期 |
1997.11.18 |
申请号 |
US19950528950 |
申请日期 |
1995.09.15 |
申请人 |
KABUSHIKI KAISHA TEC |
发明人 |
SUZUKI, MASASHI;UCHIMURA, MITSUO |
分类号 |
G06K7/00;G06K7/10;(IPC1-7):G06K7/10 |
主分类号 |
G06K7/00 |
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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