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    Gain control system and method for use in electro-optical readers
    3.
    发明申请
    Gain control system and method for use in electro-optical readers 有权
    增益控制系统和电光读取器的使用方法

    公开(公告)号：US20050236485A1

    公开(公告)日：2005-10-27

    申请号：US10832486

    申请日：2004-04-26

    申请人： Dayou Wang ,  Matthew Blasczak ,  Edward Barkan ,  Vladimir Gurevich ,  Pierre Craen

    发明人： Dayou Wang ,  Matthew Blasczak ,  Edward Barkan ,  Vladimir Gurevich ,  Pierre Craen

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10851

    摘要： An intelligent gain selection circuit replaces the gain set by an automatic gain control circuit in an electro-optical reader for reading indicia, such as bar code symbols, with a larger gain where specular reflections, high contrast edges, or other noise operative to produce dominant high voltage peaks in an analog signal generated by a sensor in the reader, are detected.

    摘要翻译： 智能增益选择电路取代由电光读取器中的自动增益控制电路设置的增益，用于读取标记，例如条形码符号，具有更大的增益，其中镜面反射，高对比度边缘或其他噪声可以产生主导 检测由读取器中的传感器产生的模拟信号中的高电压峰值。

    System and method for sensing ambient light in an optical code reader
    5.
    发明申请
    System and method for sensing ambient light in an optical code reader 有权
    用于在光学代码读取器中感测环境光的系统和方法

    公开(公告)号：US20050205677A1

    公开(公告)日：2005-09-22

    申请号：US10803669

    申请日：2004-03-18

    申请人： Mehul Patel ,  Pierre Craen ,  William Becker ,  Daniel Brown

    发明人： Mehul Patel ,  Pierre Craen ,  William Becker ,  Daniel Brown

    IPC分类号： G06K7/10 ,  G06K7/14

    CPC分类号： G06K7/10752 ,  G06K7/10732

    摘要： A system and method are provided for scanning an optical code, in which an optical code scanner system includes an ambient light sensor having at least one photo sensor for sensing ambient light conditions and generating at least one first electrical signal corresponding to the sensing of the ambient light conditions, and a photo sensor array having a plurality of photo sensors for sensing light reflected from the target being imaged and generating a plurality of second electrical signals corresponding the sensing of the reflected light. The optical code scanner further includes at least one of exposure circuitry for controlling exposure during the sensing of the reflected light, gain circuitry for processing gain of at least a portion of the plurality of second electrical signals and an illumination assembly for providing illumination for illuminating the target; and a processing circuitry for processing at least a portion of the at least one first electrical signal electrical signal and controlling at least one of the exposure circuitry, the gain circuitry and the illumination assembly in accordance with the processing of the at least a portion of the at least one first electrical signal.

    摘要翻译： 提供了用于扫描光学代码的系统和方法，其中光学代码扫描器系统包括环境光传感器，该环境光传感器具有用于感测环境光条件的至少一个光传感器，并且产生对应于环境感测的至少一个第一电信号 光条件和具有多个光传感器的光传感器阵列，用于感测从被成像的目标物反射的光，并产生对应于反射光的感测的多个第二电信号。 光学代码扫描器还包括用于在感测反射光期间控制曝光的曝光电路中的至少一个，用于处理多个第二电信号的至少一部分的增益的增益电路和用于提供照明的照明的照明组件 目标; 以及处理电路，用于处理所述至少一个第一电信号电信号的至少一部分，并且根据所述至少一部分的处理来控制所述曝光电路，所述增益电路和所述照明组件中的至少一个 至少一个第一电信号。

    Optical device for high quality and compact camera module
    6.
    发明授权
    Optical device for high quality and compact camera module 有权
    光学设备，用于高质量和紧凑的相机模块

    公开(公告)号：US08260129B2

    公开(公告)日：2012-09-04

    申请号：US12974918

    申请日：2010-12-21

    申请人： Pierre Craen ,  Yves-Sebastien Boulin ,  Paul Fuller

    发明人： Pierre Craen ,  Yves-Sebastien Boulin ,  Paul Fuller

    IPC分类号： G03B17/00

    CPC分类号： G02B3/14 ,  G03B17/12 ,  H01L27/14618 ,  H01L2924/0002 ,  H01L2924/00

    摘要： An optical device for a lens assembly of a camera module is disclosed. The optical device includes a liquid lens having at least one fixed lens and a transparent window, facing each other and delimiting, at least in part, an internal volume containing two immiscible liquids having different optical indices, and a first and a second electrode. The liquids form an interface moveable by application of a voltage between said electrodes. The optical device also includes a liquid lens holder, wherein the liquid lens holder has at least one electrical contact for contacting one electrode of the liquid lens, and at least one Z reference datum for aligning the fixed lens of the liquid lens with other optical elements of the lens assembly.

    摘要翻译： 公开了一种用于相机模块的镜头组件的光学装置。 所述光学装置包括具有至少一个固定透镜和透明窗口的液体透镜，所述至少一个固定透镜和透明窗口彼此面对并且至少部分地限定包含具有不同光学指数的两个不混溶液体的内部体积，以及第一和第二电极。 液体形成通过在所述电极之间施加电压而能够移动的界面。 光学装置还包括液体透镜保持器，其中液体透镜保持器具有用于接触液体透镜的一个电极的至少一个电触点和用于将液体透镜的固定透镜与其他光学元件对准的至少一个Z参考基准 的镜头组件。

    Method and Device For Controlling a Variable Focal Length Liquid Lens
    7.
    发明申请
    Method and Device For Controlling a Variable Focal Length Liquid Lens 审中-公开
    用于控制可变焦距液体透镜的方法和装置

    公开(公告)号：US20080204891A1

    公开(公告)日：2008-08-28

    申请号：US11910007

    申请日：2006-03-30

    申请人： Nicolas Tallaron ,  Pierre Craen ,  Bruno Berge

    发明人： Nicolas Tallaron ,  Pierre Craen ,  Bruno Berge

    IPC分类号： G02B3/12

    CPC分类号： G02B26/005 ,  G02B3/14

    摘要： The present invention concerns a method for controlling a variable focal length lens (10) comprising a dioptre (28) capable of being deformed by variation of the electro-wetting characteristics by application of a control voltage (V), wherein a focal length value corresponds to a given control voltage in the steady state, said method comprising: —applying, during a transition between the application of a first control voltage (V1) corresponding to a first focal length value (f1) and a second control voltage (V2) corresponding to a second focal length value (f2), a control voltage which is different from the first and second control voltages and changes according to a given profile that depends on the first and second control voltages.

    摘要翻译： 本发明涉及一种用于控制可变焦距透镜（10）的方法，该可变焦距透镜（10）包括能够通过施加控制电压（V）通过改变电润湿特性而变形的屈光度（28），其中焦距值对应于 在稳定状态下的给定控制电压，所述方法包括：在施加与第一焦距值（f 1）之间的转变期间， > 1 ）和对应于第二焦距值（f 2/2）的第二控制电压（V SUB> 2），不同于 第一和第二控制电压和根据取决于第一和第二控制电压的给定轮廓而改变。

    Variable-focus lens and method of manufacturing the same
    8.
    发明申请
    Variable-focus lens and method of manufacturing the same 有权
    变焦透镜及其制造方法

    公开(公告)号：US20070002455A1

    公开(公告)日：2007-01-04

    申请号：US11472562

    申请日：2006-06-22

    申请人： Bruno Berge ,  Jerome Peseux ,  Mathieu Maillard ,  Pierre Craen

    发明人： Bruno Berge ,  Jerome Peseux ,  Mathieu Maillard ,  Pierre Craen

    IPC分类号： G02B3/12

    CPC分类号： G02B3/14 ,  G02B7/008 ,  G02B26/005

    摘要： The invention relates to a variable-focus lens (60) for focussing light rays in light paths passing through the lens along an optical axis (Δ). The lens comprises an arrangement of first and second immiscible liquids (67, 68) that have different refractive indices and are in contact over a moveable refractive optical interface (69), a volume of gas (72) in contact with one of said liquids, and a retention measure (70, 74) for keeping the volume of gas away from the light paths of the light rays passing through the lens for focussing.

    摘要翻译： 本发明涉及一种用于将光线聚焦在沿光轴（Delta）穿过透镜的光路中的可变焦距透镜（60）。 透镜包括具有不同折射率并且在可移动折射光学界面（69）上接触的第一和第二不混溶液体（67,68）的布置，与所述液体之一接触的一定体积的气体（72） 以及保持措施（70,74），用于保持气体的体积远离通过透镜的光线的光路以进行聚焦。

    MULTIPLE LIQUID LENS DRIVER
    10.
    发明申请
    MULTIPLE LIQUID LENS DRIVER 审中-公开
    多个液体镜头驱动器

    公开(公告)号：US20110211262A1

    公开(公告)日：2011-09-01

    申请号：US12304537

    申请日：2007-06-20

    申请人： Pierre Craen ,  Gwenael Morichaud

    发明人： Pierre Craen ,  Gwenael Morichaud

    IPC分类号： G02B3/14

    CPC分类号： G02B3/14 ,  G02B26/005

    摘要： The invention concerns drive circuitry for generating a plurality of independent drive voltage signals for a plurality of electrodes of at least one liquid lens, the liquid lens comprising first and second miscible liquids, an interface between the first and second liquids being movable by electro wetting by application of a drive voltage signal to at least one electrode of the liquid lens, the drive circuitry including generating circuitry (406, 408, 410, 412) arranged to generate a fixed drive voltage (Vdc); a duty cycle controller (418) arranged to receive data values indicating a duty cycle to be applied to each of the plurality of electrodes, and to generate a control timing signal for each of the plurality of electrodes, each control timing signal having the duty cycle indicated by the controller; and driving means (426, 428, 430, 432) arranged to generate an independent drive voltage signal for each of the plurality of electrodes by selectively applying the fixed drive voltage, based on the control timing signal associated with each liquid lens.

    摘要翻译： 本发明涉及用于为至少一个液体透镜的多个电极产生多个独立的驱动电压信号的驱动电路，液体透镜包括第一和第二可混溶液体，第一和第二液体之间的界面可通过电润湿由 将驱动电压信号施加到所述液体透镜的至少一个电极，所述驱动电路包括被布置成产生固定驱动电压（Vdc）的发生电路（406,408,410,412）; 占空比控制器（418），被配置为接收指示要施加到所述多个电极中的每个电极的占空比的数据值，并且为所述多个电极中的每一个生成控制定时信号，每个控制定时信号具有占空比 由控制器指示; 以及驱动装置（426,428,430,432），其被布置成基于与每个液体透镜相关联的控制定时信号，通过选择性地施加固定驱动电压来产生用于多个电极中的每一个的独立驱动电压信号。