Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during hands-on and hands-free modes of operation
    94.
    发明申请
    Bar code symbol reading system employing electronically-controlled raster-type laser scanner for reading bar code symbols during hands-on and hands-free modes of operation 失效
    条形码符号读取系统采用电子光栅式激光扫描仪,在实际操作和免提操作模式下读取条码符号

    公开(公告)号:US20050001036A1

    公开(公告)日:2005-01-06

    申请号:US10826677

    申请日:2004-04-16

    IPC分类号: G06K7/10 G02B26/00

    CPC分类号: G06K7/10851 G06K7/10574

    摘要: A bar code symbol reading system is disclosed comprising a hand-supportable bar code symbol reading device which embodies an electronically-controlled bar code symbol reading engine for producing a raster-type laser scanning pattern in either a hands-free or hands-on mode of operation for scanning 1-D and 2D bar code symbols. The electronically-controlled bar code symbol reading engine has (i) a high-speed/high-resolution raster scanning mode of operation, during which a high-speed, high-resolution raster-type scanning pattern is precisely generated under electronic control, and (ii) a high-speed/low-resolution raster scanning mode of operation during which a high-speed, low-resolution raster-type scanning pattern is precisely generated under electronic control. The electronically-controlled bar code symbol reading engine is induced into its high-speed/high-resolution raster scanning mode of operation when the hand-supportable bar code symbol reading device is removed from its support stand, and into its high-speed/low-resolution raster scanning mode when the hand-supportable bar code symbol reading device is placed into its support stand. The bar code symbol reading engine comprises a pair of mechanically-damped off-resonant laser beam scanning mechanisms that are arranged on a miniature optical bench and electronically-controlled by either a synchronously or synchronously driven drive circuit. When asynchronously driven, the raster laser scanning pattern floats slightly along the y-scanning direction to facilitate reading of 2-D bar code symbols during the hands-on mode of operation.

    摘要翻译: 公开了一种条形码符号读取系统,其包括手持式条形码符号读取装置,该装置体现电子控制的条形码符号读取引擎,用于以免提或手动模式产生光栅型激光扫描图案 扫描一维和二维条形码符号的操作。 电子控制条形码符号读取引擎具有(i)高速/高分辨率光栅扫描操作模式,在此期间电子控制下精确地生成高速,高分辨率光栅型扫描图案,以及 (ii)高速/低分辨率光栅扫描操作模式,其中在电子控制下精确地产生高速,低分辨率光栅型扫描图案。 当手持式条形码符号读取装置从其支撑架移除并进入其高速/低速时,电子控制的条形码符号读取引擎被引入其高速/高分辨率光栅扫描操作模式 当手持式条形码符号读取装置放入其支撑架时,分辨率光栅扫描模式。 条形码符号读取引擎包括一对机械阻尼的非共振激光束扫描机构,其布置在微型光学平台上并由同步或同步驱动的驱动电路进行电子控制。 当异步驱动时,光栅激光扫描图案沿着y扫描方向略微漂浮,以便于在实际操作模式下读取2-D条码符号。

    Led-based planar light illumination and imaging (PLIIM) systems
    96.
    发明授权
    Led-based planar light illumination and imaging (PLIIM) systems 失效
    基于LED的平面光照明和成像(PLIIM)系统

    公开(公告)号:US07070107B2

    公开(公告)日:2006-07-04

    申请号:US10156705

    申请日:2002-05-24

    IPC分类号: G06K7/10

    摘要: A planar light illumination and imaging system for illuminating an object and forming an image thereof. The planar light illumination and imaging system which comprises an image formation and detection module having a field of view (FOV) focused at an image detecting array. A planar light illumination array (PLIA) constructed from an plurality of planar light illumination modules (PLIMs) is arranged in rectilinear manner. Each planar light illumination module comprises a visible light emitting diode (LED), a focusing lens, and a cylindrical optical element arranged therewith to produce a planar light illumination beam component; and wherein the individual planar light illumination beam components produced from the plurality of planar light illumination modules are optically combined to produce a composite substantially planar light illumination beam having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of the image formation and detection module, so that light reflected off an object illuminated by the planar light illumination beam is focused along the field of view and onto the image detecting array to form an image of the illuminated object.

    摘要翻译: 一种用于照亮物体并形成其图像的平面光照射和成像系统。 平面光照明和成像系统,其包括具有聚焦在图像检测阵列的视场(FOV)的图像形成和检测模块。 由多个平面光照射模块(PLIM)构成的平面光照射阵列(PLIA)以直线方式布置。 每个平面光照射模块包括可见光发光二极管(LED),聚焦透镜和与其配置的圆柱形光学元件,以产生平面光照射束分量; 并且其中从所述多个平面光照射模块产生的各个平面光照射光束分量被光学地组合以产生具有基本上平面的空间分布特征的复合的基本上平面的光照射束,所述光照射束延伸通过所述图像的视场(FOV) 形成和检测模块,使得由平面光照射光束照射的物体反射的光被聚焦在视场上并且到达图像检测阵列上以形成被照射物体的图像。

    Hand-supportable code symbol reader employing coplanar laser illumination and linear imaging
    99.
    发明授权
    Hand-supportable code symbol reader employing coplanar laser illumination and linear imaging 失效
    手持式代码符号读取器采用共面激光照明和线性成像

    公开(公告)号:US07621455B2

    公开(公告)日:2009-11-24

    申请号:US11974183

    申请日:2007-10-11

    IPC分类号: G06K7/10

    摘要: A hand-supportable coplanar laser illumination and imaging (PLIIM) based code symbol reader includes: a hand-supportable housing having light transmission aperture; a linear image formation and detection module having a linear image detection array; and a planar laser illumination beam (PLIB) producing a coplanar laser illumination and imaging based device having at least one visible laser diode (VLD) for producing a planar light illumination beam (PLIB). The code symbol reader further includes an image grabber for grabbing digital linear images formed and detected by the image formation and detection module, an image data buffer for buffering the digital linear images grabbed by the image grabber, and an image processing computer for processing the buffered digital linear images so as to read code symbols graphically represented in the digital linear images. During object illumination and imaging operations, a controller automatically controls the linear image formation and detection module, the PLIB producing device, the image frame grabber, and the image data buffer.

    摘要翻译: 基于手持式共面激光照明和成像(PLIIM)的代码符号读取器包括:具有光传输孔径的手持式外壳; 具有线性图像检测阵列的线性图像形成和检测模块; 以及产生具有用于产生平面光照射束(PLIB)的至少一个可见激光二极管(VLD))的共面激光照明和基于成像的装置的平面激光照明光束(PLIB)。 代码符号读取器还包括用于抓取由图像形成和检测模块形成和检测的数字线性图像的图像获取器,用于缓冲由图像获取器抓取的数字线性图像的图像数据缓冲器,以及用于处理缓冲的图像处理计算机 数字线性图像,以便读取在数字线性图像中图形表示的代码符号。 在物体照明和成像操作期间,控制器自动控制线性图像形成和检测模块,PLIB产生装置,图像帧抓取器和图像数据缓冲器。

    Hand-supportable code symbol reader employing coplanar laser illumination and linear imaging
    100.
    发明申请
    Hand-supportable code symbol reader employing coplanar laser illumination and linear imaging 失效
    手持式代码符号读取器采用共面激光照明和线性成像

    公开(公告)号:US20080116279A1

    公开(公告)日:2008-05-22

    申请号:US11974179

    申请日:2007-10-11

    IPC分类号: G06K7/10

    摘要: A hand-supportable planar laser illumination and imaging (PLIIM) based code symbol reader includES: a hand-supportable housing having light transmission aperture; a linear image formation and detection module having a linear image detection array; and a planar laser illumination beam (PLIB) producing device having at least one visible laser diode (VLD) for producing a planar light illumination beam (PLIB). The code symbol reader further includes image grabber for grabbing digital linear images formed and detected by the image formation and detection module, an image data buffer for buffering the digital linear images grabbed by the image grabber and constructing a two-dimensional image from a series of buffered linear digital images, and an image processing computer for processing the buffered two-dimensional digital image so as to read code symbols graphically represented in the two-dimensional digital linear image. During object illumination and imaging operations, a controller automatically controls the linear image formation and detection module, the PLIB producing device, the image frame grabber, and the image data buffer.

    摘要翻译: 基于手持式平面激光照明和成像(PLIIM)的代码符号读取器包括:具有光传输孔径的手持式外壳; 具有线性图像检测阵列的线性图像形成和检测模块; 以及具有用于产生平面光照射光束(PLIB)的至少一个可见激光二极管(VLD)的平面激光照明光束(PLIB)产生装置。 代码符号读取器还包括用于抓取由图像形成和检测模块形成和检测的数字线性图像的图像获取器,用于缓冲由图像获取器抓取的数字线性图像并从一系列图像构建二维图像的图像数据缓冲器 缓冲线性数字图像,以及用于处理缓冲的二维数字图像以便读取在二维数字线性图像中图形表示的代码符号的图像处理计算机。 在物体照明和成像操作期间,控制器自动控制线性图像形成和检测模块,PLIB产生装置,图像帧抓取器和图像数据缓冲器。