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    • 17. 发明授权
    • Laser power control arrangements in electro-optical readers
    • 电光读取器中的激光功率控制装置
    • US08002186B2
    • 2011-08-23
    • US12288803
    • 2008-10-23
    • Igor VinogradovMark DrzymalaDarren HandshawYuly MitelmanRong Liu
    • Igor VinogradovMark DrzymalaDarren HandshawYuly MitelmanRong Liu
    • G06K7/10
    • G06K7/10584G06K7/10702G06K7/10851
    • A laser power control arrangement and method in an electro-optical reader for reading indicia includes an energizable laser for emitting a laser beam having an output power along a path. An internal light detector, e.g., a monitor photodiode, is mounted inside the laser for monitoring the output power of the laser. An external light detector, e.g., an auxiliary photodiode, is mounted outside the laser for monitoring the output power of the laser independently of the internal light detector. A guide, advantageously a light pipe or a diffuser, is positioned outside the laser in the path of the laser beam for guiding the laser beam from the laser to the external light detector. A controller is operatively connected to each light detector, for controlling a monitored output power of the laser beam by deenergizing the laser when the monitored output power of the laser beam exceeds a safe power level limit.
    • 用于读取标记的电光读取器中的激光功率控制装置和方法包括用于发射具有沿着路径的输出功率的激光束的可激励激光器。 内部光检测器,例如监视器光电二极管,安装在激光器的内部,用于监视激光器的输出功率。 外部光检测器(例如辅助光电二极管)安装在激光器的外部,用于独立于内部光检测器监视激光器的输出功率。 引导件,有利地是光管或扩散器,位于激光束的路径内,用于将激光束从激光器引导到外部光检测器。 控制器可操作地连接到每个光检测器,用于当所监视的激光束的输出功率超过安全功率电平限制时,通过对激光器通电来控制激光束的监测输出功率。
    • 20. 发明申请
    • DUAL IMAGING LENS SYSTEM FOR BAR CODE READER
    • 用于条形码阅读器的双成像镜头系统
    • US20080265035A1
    • 2008-10-30
    • US11739888
    • 2007-04-25
    • Igor VinogradovEdward D. BarkanMark DrzymalaMing Yu
    • Igor VinogradovEdward D. BarkanMark DrzymalaMing Yu
    • G06K7/10
    • G06K7/10722
    • An imaging system for an imaging-based bar code reader for capturing an image of a target bar code. In one exemplary embodiment, the imaging system includes: a sensor array including an array of photosensitive elements for converting, light impinging on the array of photosensitive elements into electrical signals based on light intensity; an imaging lens system for focusing light from a field of view onto the sensor array, the imaging lens system including a first lens assembly and a second lens assembly, the first lens assembly defining a first field of view and the second lens assembly defining a second field of view, the first and second fields of view being different; and a control for selectively choosing between the first and second fields of view for imaging the target bar code.
    • 一种用于基于成像的条形码读取器的成像系统,用于捕获目标条形码的图像。 在一个示例性实施例中,成像系统包括:传感器阵列,包括用于将光敏元件阵列上的光照射到基于光强度的电信号中的光敏元件阵列; 用于将来自视野的光聚焦到传感器阵列上的成像透镜系统,所述成像透镜系统包括第一透镜组件和第二透镜组件,所述第一透镜组件限定第一视场,所述第二透镜组件限定第二透镜组件 视野,第一和第二视野不同; 以及用于选择性地选择在第一和第二视场之间进行成像目标条形码的控制。