发明授权
US5187353A Bar code symbol scanner utilizing monitor photodiode of laser diode
package as a photoreceiver
失效
条形码符号扫描器利用激光二极管封装的监视器光电二极管作为光接收器
- 专利标题： Bar code symbol scanner utilizing monitor photodiode of laser diode package as a photoreceiver
- 专利标题（中）： 条形码符号扫描器利用激光二极管封装的监视器光电二极管作为光接收器
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申请号： US884311申请日： 1992-05-11
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公开(公告)号： US5187353A公开(公告)日： 1993-02-16
- 发明人: Boris Metlitsky , Mark Krichever
- 申请人： Boris Metlitsky , Mark Krichever
- 申请人地址： NY Bohemia
- 专利权人： Symbol Technologies, Inc.
- 当前专利权人： Symbol Technologies, Inc.
- 当前专利权人地址： NY Bohemia
- 主分类号： G06K7/10
- IPC分类号： G06K7/10
摘要：
An arrangement for reading bar code symbols including a laser diode unit having a forwardly-directed laser beam emitted along an optical path toward a symbol for reflection therefrom to generate reflected light, and a rearwardly-directed laser beam, and a monitor photodiode in optical communication with the rearwardly-directed laser beam for producing a signal indicative of the output power of the laser diode. The arrangement also includes a collector exterior to the laser diode unit for collecting at least a portion of the reflected light from the symbol, and for directing the collected portion to the monitor photodiode to generate an information signal descriptive of the symbol.
公开/授权文献
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