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    • 1. 发明授权
    • Arrangement for and method of generating uniform distributed illumination pattern for imaging reader
    • 为成像读取器生成均匀分布照明图案的布置和方法
    • US08450708B2
    • 2013-05-28
    • US12792222
    • 2010-06-02
    • Rong LiuEdward BarkanMark DrzymalaIgor Vinogradov
    • Rong LiuEdward BarkanMark DrzymalaIgor Vinogradov
    • G06K7/10
    • G06K7/10732G06K7/10831
    • A substantially uniform distributed illumination pattern of light is generated on and along a symbol to be read by image capture. A solid-state imager is mounted on a tilted printed circuit board in a tilted handle of an ergonomic reader. An imaging lens assembly captures return light over a field of view from the symbol along an imaging axis, and projects the captured return light onto the imager. An illumination light source is mounted on the board for emitting illumination light at an acute angle of inclination relative to the imaging axis. An optical component includes a first lens portion with a polynomial incident surface for intercepting, bending and aligning the emitted illumination light to generate the pattern in a scan direction along the symbol, and a second lens portion with a toroidal or cylindrical aspherical surface for collimating the aligned illumination light to generate the pattern in a transverse direction.
    • 沿着要通过图像捕获读取的符号并沿着符号产生基本均匀的分布照明图案。 固态成像仪安装在人体工学读取器的倾斜手柄上的倾斜印刷电路板上。 成像透镜组件沿着成像轴从符号的视场中捕获返回光,并将捕获的返回光投射到成像器上。 照明光源安装在板上用于发射相对于成像轴线的锐角的照明光。 光学部件包括具有多项式入射表面的第一透镜部分,用于截取,弯曲和对齐发射的照明光以沿着符号在扫描方向上产生图案,以及具有环形或圆柱形非球面的第二透镜部分,用于准直 对准的照明光以在横向上产生图案。
    • 2. 发明申请
    • ARRANGEMENT FOR AND METHOD OF GENERATING UNIFORM DISTRIBUTED ILLUMINATION PATTERN FOR IMAGING READER
    • 用于成像读取器的均匀分布照明模式的生成方法和方法
    • US20110297853A1
    • 2011-12-08
    • US12792222
    • 2010-06-02
    • Rong LIUEdward BarkanMark DrzymalaIgor Vinogradov
    • Rong LIUEdward BarkanMark DrzymalaIgor Vinogradov
    • G06K7/10
    • G06K7/10732G06K7/10831
    • A substantially uniform distributed illumination pattern of light is generated on and along a symbol to be read by image capture. A solid-state imager is mounted on a tilted printed circuit board in a tilted handle of an ergonomic reader. An imaging lens assembly captures return light over a field of view from the symbol along an imaging axis, and projects the captured return light onto the imager. An illumination light source is mounted on the board for emitting illumination light at an acute angle of inclination relative to the imaging axis. An optical component includes a first lens portion with a polynomial incident surface for intercepting, bending and aligning the emitted illumination light to generate the pattern in a scan direction along the symbol, and a second lens portion with a toroidal or cylindrical aspherical surface for collimating the aligned illumination light to generate the pattern in a transverse direction.
    • 沿着要通过图像捕获读取的符号并沿着符号产生基本均匀的分布照明图案。 固态成像仪安装在人体工学读取器的倾斜手柄上的倾斜印刷电路板上。 成像透镜组件沿着成像轴从符号的视场中捕获返回光,并将捕获的返回光投射到成像器上。 照明光源安装在板上用于发射相对于成像轴线的锐角的照明光。 光学部件包括具有多项式入射表面的第一透镜部分,用于截取,弯曲和对齐发射的照明光以沿着符号在扫描方向上产生图案,以及具有环形或圆柱形非球面的第二透镜部分,用于准直 对准的照明光以在横向上产生图案。
    • 10. 发明申请
    • Laser power control arrangements in electro-optical readers
    • 电光读取器中的激光功率控制装置
    • US20100102128A1
    • 2010-04-29
    • 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,用于当激光束的监视的输出功率超过安全功率电平限制时,通过对激光器进行去激励来控制激光束的监视的输出功率。