CCD-based bar code scanner with optical funnel
    2.
    发明授权
    CCD-based bar code scanner with optical funnel 失效
    基于CCD的条形码扫描器带光漏斗

    公开(公告)号:US5859418A

    公开(公告)日:1999-01-12

    申请号:US591809

    申请日:1996-01-25

    申请人: Yajun Li Joseph Katz

    发明人: Yajun Li Joseph Katz

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10742 G06K7/10732

    摘要: An optical funnel evenly distributes light from an array of LEDs to a bar code. A support member with a central aperture holds the LEDs. A shroud with an angled reflective interior surface spreads the light from the LEDs to the bar code. The funnel also optically isolates the LEDs from the photodector in the scanner.

    摘要翻译: 光学漏斗将LED阵列中的光均匀分布到条形码。 具有中心孔的支撑构件保持LED。 带有倾斜反光内表面的护罩将来自LED的光线分散到条形码。 漏斗还将扫描仪中的光电隔离器光学隔离。

    Photodetector for use in reading optical information symbols
    5.
    发明授权
    Photodetector for use in reading optical information symbols 失效
    用于读取光学信息符号的光电检测器

    公开(公告)号:US5506392A

    公开(公告)日:1996-04-09

    申请号:US314519

    申请日:1994-09-28

    IPC分类号: G06K7/015 G06K7/10 G06K7/14

    摘要: A bar code reader capable of working over a wider range of working angle and for a wider range of bar code densities, using improved optics and sensing elements. The optics and sensing elements and/or the associated circuitry are arranged to provide two channels of data derived from the scanned bar code. The two channels have differing resolutions. Analysis of the data from the two channels provides a single decoded result. As the working angle and density vary at least one of the resolutions will be appropriate for sensing all or most of the bar coded data. The data from the channel producing a valid result can be used, or if neither channel produces a valid result by itself, data from each channel can be analyzed and valid portions of the data from both channels combined to produce the single decoded result. The different resolution of the two channels can be provided using different size photodetection areas, e.g., small and large groups of active areas on a sensor array.

    摘要翻译: 使用改进的光学元件和传感元件,能够在更宽范围的工作角度和更宽范围的条形码密度下工作的条形码阅读器。 光学和感测元件和/或相关联的电路被布置成提供从扫描的条形码导出的两个通道的数据。 两个通道具有不同的分辨率。 来自两个通道的数据的分析提供单个解码结果。 由于工作角和密度变化,分辨率中的至少一个将适合于感测所有或大部分条形码数据。 可以使用来自产生有效结果的信道的数据,或者如果两个信道本身都没有产生有效结果,则可以分析来自每个信道的数据,并且将来自两个信道的数据的有效部分组合以产生单个解码结果。 可以使用不同尺寸的光电检测区域(例如传感器阵列上的小和大的有效区域组)来提供两个通道的不同分辨率。

    Scan module for a bar code reader with a magnifying lens
    7.
    发明授权
    Scan module for a bar code reader with a magnifying lens 失效
    具有放大镜的条形码读取器的扫描模块

    公开(公告)号:US06879418B2

    公开(公告)日:2005-04-12

    申请号:US10616363

    申请日:2003-07-09

    IPC分类号: G06K7/10 G02B26/08

    CPC分类号: G06K7/10811 G06K7/10653

    摘要: A scan module for use in a bar code reader including a base, a light source, a focusing lens, a scan mirror mounted for oscillatory motion relative to the base so as to create a scanner laser beam, and a magnifying lens for magnifying the angle of reflection of a light beam from the light source off the scan mirror.

    摘要翻译: 一种用于条形码读取器的扫描模块,包括基座,光源,聚焦透镜,安装成相对于基座摆动的扫描镜,以便产生扫描仪激光束;以及放大镜,用于放大角度 反射来自光源的光束离开扫描镜。

    Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology
    8.
    发明授权
    Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology 失效
    使用电荷耦合器件和扫描激光束技术读取标记的装置和方法

    公开(公告)号:US06398112B1

    公开(公告)日:2002-06-04

    申请号:US09540404

    申请日:2000-03-31

    IPC分类号: G06K710

    摘要: A scanning device for reading indicia of differing light reflectivity, including bar code or matrix array symbols, has a single light emitter, such as a laser or light emitting diode, for generating a scanning light beam to visually illuminate sequential portions of the indicia. A sensor, such as a charge coupled or other solid state imaging device, simultaneously detects light reflected from portions of the indicia and generates an electrical signal representative of the spacial intensity variations the portions of the indicia. The scanning device may also include an ambient light sensor, and a second light emitter for use only in aiming or orienting the scanning device. A photodetector may also be provided to separately detect one symbol virtually simultaneous with the detection of another symbol by the sensor or to provide dual modalities. A method for reading indicia is also provided.

    摘要翻译: 用于读取不同光反射率的标记(包括条形码或矩阵阵列符号)的扫描装置具有用于产生扫描光束以目视照亮标记的顺序部分的单个光发射器,例如激光或发光二极管。 诸如电荷耦合或其它固态成像装置的传感器同时检测从标记的部分反射的光,并产生代表标记部分的空间强度变化的电信号。 扫描装置还可以包括环境光传感器和仅用于瞄准或定向扫描装置的第二光发射器。 还可以提供光电检测器以与传感器检测另一个符号同时检测一个符号,或提供双重方式。 还提供了读取标记的方法。

    Bar code scanner having a focusing system
    10.
    发明授权
    Bar code scanner having a focusing system 有权
    具有聚焦系统的条形码扫描器

    公开(公告)号:US6065678A

    公开(公告)日:2000-05-23

    申请号:US192032

    申请日:1998-11-13

    申请人: Yajun Li Joseph Katz

    发明人: Yajun Li Joseph Katz

    IPC分类号: G06K7/10

    CPC分类号: G06K7/10742 G06K7/10732

    摘要: A CCD based bar code scanner having a focusing system for assisting an operator in determining a proper relative position between the scanner and the bar code. The scanner also includes an illumination system for illuminating the bar code, a collection system for detecting the light reflected from the illuminated bar code and a processor for processing the detected signals.

    摘要翻译: 一种基于CCD的条形码扫描器,其具有用于辅助操作者确定扫描器和条形码之间的适当相对位置的聚焦系统。 扫描仪还包括用于照亮条形码的照明系统,用于检测从照明条形码反射的光的收集系统和用于处理检测到的信号的处理器。