利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

144 条记录 (耗时 0.04 秒)

    Miniature imager
    3.
    发明授权
    Miniature imager 有权
    微型成像仪

    公开(公告)号：US06811085B2

    公开(公告)日：2004-11-02

    申请号：US10118562

    申请日：2002-04-09

    申请人： Bradley Carlson ,  Duanfeng He ,  Joseph Katz ,  Mark Krichever ,  Mehul Patel ,  David Tsi Shi ,  Thomas D. Bianculli ,  Eugene Joseph

    发明人： Bradley Carlson ,  Duanfeng He ,  Joseph Katz ,  Mark Krichever ,  Mehul Patel ,  David Tsi Shi ,  Thomas D. Bianculli ,  Eugene Joseph

    IPC分类号： G06K714

    CPC分类号： H04N5/2354 ,  G06K7/10722 ,  H01L27/146 ,  H04N5/2256

    摘要： A miniature imager for reading target images. The optical and electrical systems of the miniature imager are optimized to reduce one or more dimensions or the volume of the imager. In accordance with one embodiment the pixel pitch and focal length are decreased for that of a larger imager to maintain a comparable field of view for each pixel. The decreased pixel pitch allows the area of the aperture and the instantaneous field of view of the pixel to remain constant while decreasing the overall size of the imager. In other embodiments apparatus and techniques reduce and/or eliminate the need for illumination of a target by the imager thereby reducing the overall power consumed by the imager and/or its overall size. The imager has an increased working range.

    摘要翻译： 用于读取目标图像的微型成像器。 微型成像器的光学和电气系统被优化以减小成像器的一个或多个尺寸或体积。 根据一个实施例，对于较大成像器的像素间距和焦距减小，以保持每个像素的可比视场。 减小的像素间距允许像素的面积和像素的瞬时视场保持不变，同时降低成像器的整体尺寸。 在其他实施例中，装置和技术减少和/或消除了由成像器对目标的照明的需要，从而降低了成像器消耗的总体功率和/或其整体尺寸。 成像仪的工作范围有所增加。

    Linearization of raster patterns in 2D optical scanners
    9.
    发明授权
    Linearization of raster patterns in 2D optical scanners 失效
    2D光学扫描仪中光栅图案的线性化

    公开(公告)号：US5889269A

    公开(公告)日：1999-03-30

    申请号：US789660

    申请日：1997-01-27

    申请人： Raj Bridgelall ,  Duanfeng He ,  Eugene Joseph ,  William John Sakoda

    发明人： Raj Bridgelall ,  Duanfeng He ,  Eugene Joseph ,  William John Sakoda

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10702 ,  G06K7/10693

    摘要： An optical scanner for reading two-dimensional indicia such as bar code symbols and the like includes a scan element arranged to create a two-dimensional raster pattern which may be scanned across the indicia to be read. In order to improve linearity of response in the vertical direction, perpendicular to the direction of the scan lines, the scan element is driven in that direction by a modified triangle waveform in which the amplitude and/or the phase of at least one of the harmonics has been altered. A scanning synchronization signal is provided by a long thin photodetector which is swept by the scanning beam at the left hand end of each scan path. This enables reading of vertically-modulated bar code symbologies such as POSTNET and PostBar.

    摘要翻译： 用于读取诸如条形码符号等二维标记的光学扫描器包括扫描元件，其被布置成产生二维光栅图案，该二维光栅图案可跨过待读取的标记进行扫描。 为了提高垂直于扫描线方向的垂直方向的响应线性，扫描元件沿着该方向被驱动，其中至少一个谐波的幅度和/或相位被修改为三角波形 已被改变。 扫描同步信号由在每个扫描路径的左端由扫描光束扫描的长的细光电检测器提供。 这样可以读取垂直调制的条形码符号，如POSTNET和PostBar。

    Compact autofocus bar code reader with moving mirror
    10.
    发明授权
    Compact autofocus bar code reader with moving mirror 有权
    带移动镜的紧凑型自动对焦条形码阅读器

    公开(公告)号：US07726573B2

    公开(公告)日：2010-06-01

    申请号：US11753628

    申请日：2007-05-25

    申请人： Vladimir Gurevich ,  Igor Vinogradov ,  Tsi David Shi ,  Duanfeng He

    发明人： Vladimir Gurevich ,  Igor Vinogradov ,  Tsi David Shi ,  Duanfeng He

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10811

    摘要： The disclosed bar code reader includes an auto-focusing component for rapidly producing in focus images. An imaging system makes use of an aiming pattern that impinges upon the coded indicia of a target. The imaging system includes a light monitoring pixel array and a focusing lens that is fixed with respect to the pixel array for transmitting an image of the target object onto the pixel array. The imaging system also includes a movable mirror mounted for movement along a path of travel to reflect light passing through the focusing lens onto the pixel array. A drive motor moves the mirror relative the lens to adjust a focus of an image of the object formed at the pixel array. An automatic focusing component of the imaging system analyzes the aiming pattern reflected from the target object and projected onto the pixel array by the lens. The automatic focusing component issues commands to the drive motor causing the mirror to move along its path of travel to a suitable position for properly focusing the target object onto the pixel array.

    摘要翻译： 所公开的条形码读取器包括用于快速产生聚焦图像的自动聚焦部件。 成像系统利用撞击目标的编码标记的瞄准图案。 成像系统包括光监测像素阵列和相对于像素阵列固定的聚焦透镜，用于将目标物体的图像传送到像素阵列上。 成像系统还包括可移动镜，其安装成沿着行进路径移动以将通过聚焦透镜的光反射到像素阵列上。 驱动电机相对于镜头移动镜子以调整形成在像素阵列处的物体的图像的焦点。 成像系统的自动聚焦组件分析从目标物体反射并由透镜投射到像素阵列上的瞄准图案。 自动对焦组件向驱动电机发出命令，使得反射镜沿其行进路径移动到合适的位置，以将目标物体适当地聚焦到像素阵列上。