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    • 1. 发明申请
    • MODULAR OMNIDIRECTIONAL BAR CODE SYMBOL SCANNING SYSTEM WITH SCAN MODULE INSERT
    • 具有扫描模块插入的模块化OMNIDIRECTIVE BAR代码符号扫描系统
    • WO2003094094A2
    • 2003-11-13
    • PCT/US2003/013979
    • 2003-05-05
    • METROLOGIC INSTRUMENTS, INC.LUCERA, MarkGOOD, Timothy, A.SCHMIDT, Mark, S.JEFFERSON, Matthew, R.BYUN, Sung, HoAMUNDSEN, ThomasRACZKOWSKI, Joseph
    • LUCERA, MarkGOOD, Timothy, A.SCHMIDT, Mark, S.JEFFERSON, Matthew, R.BYUN, Sung, HoAMUNDSEN, ThomasRACZKOWSKI, Joseph
    • G06K
    • G06K7/10861G06K7/1098
    • A modular omnidirectional laser-based bar code symbol scanning system having at least one scan module insert that is removably disposed (e.g., removably installed) within a system housing (or portion thereof) through a service port (e.g., opening) in the system housing (or portion thereof). The scan module insert is a self-contained unit including at least the following components (in addition to mechanical support structures for such components): at least one laser diode, a rotating scanning element, an electric motor that rotates the rotating scanning element, one or more photodetectors, and analog signal processing circuitry that conditions (e.g., amplifies and/or filters out unwanted noise in) the electrical signal produced by the one or more photodetectors. The scan module insert can optionally include additional components including one or more light collecting , optical elements, one or more beam folding mirrors, circuitry for detecting and decoding bar code symbols scanned by the system, etc. The modular architecture of omnidirectional laser scanner of the present invention enables quick access to the scan module insert for efficient repair/reconfiguration/configuration of the optical components, electro-optical, electro-mechanical components and/or electrical components integral thereto.
    • 一种基于模块化全向激光的条形码符号扫描系统,其具有至少一个扫描模块插件,其通过系统壳体(例如,开口)可移除地设置(例如,可移除地安装)在系统壳体(或其部分)内 (或其部分)。 扫描模块插入件是独立的单元,至少包括以下部件(除了用于这些部件的机械支撑结构之外):至少一个激光二极管,旋转扫描元件,旋转扫描元件的电动机,一个 或更多的光电检测器,以及模拟信号处理电路,其对由一个或多个光电检测器产生的电信号进行条件(例如,放大和/或滤除不需要的噪声)。 扫描模块插件可以可选地包括附加的组件,包括一个或多个聚光,光学元件,一个或多个光束折叠镜,用于检测和解码由系统扫描的条形码符号的电路等。全向激光扫描仪的模块化架构 本发明使得能够快速访问扫描模块插件,用于有效地修复/重新配置/组合光学部件,电光学,机电部件和/或与其成为一体的电子部件。
    • 2. 发明申请
    • AUTOFOCUS LIQUID LENS SCANNER
    • 自动液体镜片扫描仪
    • WO2009038959A1
    • 2009-03-26
    • PCT/US2008/075025
    • 2008-09-02
    • METROLOGIC INSTRUMENTS, INC.GOOD, Timothy, A.ZHU, Xiaoxun
    • GOOD, Timothy, A.ZHU, Xiaoxun
    • G02B1/06
    • G06K7/10801G02B3/14G02B7/08G06K7/10702
    • An autofocus system and method for performing the same for a liquid lens. The autofocus system in one embodiment includes a liquid lens having a variable focal length that is adjusted by varying an input voltage to the lens, distance detection circuitry operative to measure a distance to a target to be scanned, and control circuitry associated with the liquid lens for focusing the lens. The control circuitry receives a signal from the distance detection circuitry representing a measured distance to the target. Control logic, preferably implemented by the control circuitry in one embodiment, calculates a voltage value corresponding to the measured distance to the target and generates an output voltage approximating the calculated voltage value to adjust the focus the lens.
    • 一种用于对液体透镜执行该自动对焦系统和方法。 一个实施例中的自动对焦系统包括具有可变焦距的液体透镜,其通过改变对透镜的输入电压进行调节,距离检测电路可操作以测量到待扫描的目标的距离,以及与液体透镜相关联的控制电路 用于聚焦镜头。 控制电路从距离检测电路接收表示到目标的测量距离的信号。 优选地,在一个实施例中由控制电路实现的控制逻辑计算对应于到目标的测量距离的电压值,并产生近似于计算出的电压值的输出电压以调整透镜的焦距。
    • 7. 发明申请
    • BIOPTICAL HOLOGRAPHIC LASER SCANNING SYSTEM
    • BIOPTICAL全息激光扫描系统
    • WO0180163A8
    • 2001-12-13
    • PCT/US0112623
    • 2001-04-18
    • METROLOGIC INSTR INCCHECK FRANKDICKSON LEROYGROOT JOHNGOOD TIMOTHY A
    • CHECK FRANKDICKSON LEROYGROOT JOHNGOOD TIMOTHY A
    • G06K7/10G02B6/00G06K5/00G06K17/00
    • G06K7/10673G06K7/10663G06K7/10693
    • A bioptical holographic laser scanning system employing a plurality of laser scanning stations (ST1-ST4) about a holographic disc (30) having scanning facets with high and low elevation angle characteristics, as well as positive, negative and zero skew angle characteristics which strategically cooperate with groups of beam folding mirrors having optimized surface geometry characteristics. The system has an ultra-compact construction, ideally suited for space-constrained retail scanning environments, and generate a 3-D omnidirectional laser scanning pattern between the bottom and side scanning windows during sytem operation. The laser scanning pattern of the present invention comprises a complex of pairs of quasi-orthogonal laser scanning planes (5A1-5A5), which include a plurality of substantially vertical laser scanning planes for reading bar code symbols having bar code elements that are oriented substantially substantially horizontal with respect to the bottom scanning window, and a plurality of substantially-horizontal laser scanning planes for reading bar code symbols having bar code elements that are oriented substantially vertical with respect to the bottom scanning window.
    • 一种采用多个激光扫描站(ST1-ST4)的全息光盘(30)的生物光学全息激光扫描系统,该全息光盘具有扫描小平面,具有高和低仰角特性以及策略上配合的正,负和零偏斜角特性 具有优化的表面几何特征的多组光束折叠镜。 该系统具有超紧凑的结构,非常适合空间受限的零售扫描环境,并在系统操作期间在底部和侧面扫描窗口之间生成3-D全方位激光扫描图案。 本发明的激光扫描图案包括成对的准正交激光扫描平面(5A1-5A5)的复数组,其包括用于读取条码元件的多个基本上垂直的激光扫描平面,所述条码元件具有基本基本上定向的条码元件 相对于底部扫描窗是水平的;以及多个基本上水平的激光扫描平面,用于读取具有相对于底部扫描窗大致垂直定向的条形码元素的条形码符号。