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199 条记录 (耗时 0.046 秒)

    Piezoelectric beam deflector
    47.
    发明授权
    Piezoelectric beam deflector 失效
    压电束偏转器

    公开(公告)号：US5170277A

    公开(公告)日：1992-12-08

    申请号：US766315

    申请日：1991-09-27

    申请人： Dimon Bard ,  Boris Metlitsky ,  Jerome Swartz ,  Joseph Katz

    发明人： Dimon Bard ,  Boris Metlitsky ,  Jerome Swartz ,  Joseph Katz

    IPC分类号： G06K7/015 ,  G06K7/10 ,  G07F7/02 ,  G07G1/00 ,  H01L41/09

    CPC分类号： G06K7/10564 ,  G06K7/10584 ,  G06K7/10633 ,  G06K7/10653 ,  G06K7/10871 ,  G06K7/10881 ,  G06K7/10891 ,  G06Q20/343 ,  G07F7/02 ,  G07G1/0045 ,  G06F2203/0331 ,  G06K2007/10534 ,  G06K2207/1016

    摘要： Several embodiments are disclosed of bar code readers in which one or more piezoelectric bimorph elements are utilized as a drive element in the optical system thereof. In different embodiments, the piezoelectric bimorph element is utilized in the scanning function of the bar code reader optical system, or in a variable focus zooming function of the optical system. The bar code readers are provided with improved decoding reliability, speed and orientation freedom, with regular or high density, one or two dimensional bar codes, by using multiple beam symbol crossings, created by using one or more piezoelectric bimorph elements. In different disclosed embodiments, one or more cantilever mounted piezoelectric bimorph elements support a scanning mirror, or a focusing lens, or a laser diode, or a laser diode and limiting aperture, for movement at the free ends of the bimorph elements to produce a scanning of the bar code reader optical system. Several disclosed embodiments of the subject invention provide a beam deflector for a bar code reader optical system having a variable focus zoom lens system in which one or more cantilever mounted piezoelectric bimorph elements control the variable focus zoom lens system. 1

    摘要翻译： 公开了条形码阅读器的几个实施例，其中一个或多个压电双晶片元件用作其光学系统中的驱动元件。 在不同的实施例中，压电双晶片元件用于条形码读取器光学系统的扫描功能，或者以光学系统的可变焦距变焦功能。 通过使用通过使用一个或多个压电双晶片元件产生的多个光束符号交叉，条形码读取器具有改进的解码可靠性，速度和取向自由度，具有规则或高密度，一维或二维条形码。 在不同的公开的实施例中，一个或多个悬臂安装的压电双晶片元件支撑扫描镜，聚焦透镜或激光二极管，或激光二极管和限制孔，用于在双压电晶片元件的自由端处移动以产生扫描 的条码阅读器光学系统。 本发明的几个公开的实施例提供了一种用于具有可变焦距变焦透镜系统的条形码读取器光学系统的光束偏转器，其中一个或多个悬臂安装的压电双晶片元件控制可变焦距变焦透镜系统。

    Light emitting diode scanner
    48.
    发明授权
    Light emitting diode scanner 失效
    发光二极管扫描仪

    公开(公告)号：US5136147A

    公开(公告)日：1992-08-04

    申请号：US572446

    申请日：1990-08-27

    申请人： Boris Metlitsky ,  Jerome Swartz ,  Edward D. Barkan ,  Howard Shepard ,  David P. Goren ,  Tony Biuso

    发明人： Boris Metlitsky ,  Jerome Swartz ,  Edward D. Barkan ,  Howard Shepard ,  David P. Goren ,  Tony Biuso

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10702 ,  G06K7/10594

    摘要： A portable scanning head emits and receives light from a light emitting diode to read symbols, such as bar-code symbols. The optics within the scanner are operative for focusing a light beam and the view of a light sensor in different planes exteriorly of a scanner housing. Imaging means are provided in the unit for imaging a viewing window. The viewing window has an area smaller than that of the scan spot. The system can employ an LED as a light source and tolerate the relatively large-sized (on the order of millimeters) scan spot without sacrificing reading performance since the photodiode "sees" only that portion of the scan spot visible through the viewing window.

    摘要翻译： 便携式扫描头发射并接收来自发光二极管的光以读取诸如条形码符号的符号。 扫描器内的光学器件用于将光束和光传感器的视图聚焦在扫描仪外壳外部的不同平面中。 在用于对观察窗进行成像的单元中提供成像装置。 观察窗口的面积小于扫描点的面积。 该系统可以使用LED作为光源并且容忍相对较大尺寸（毫米级）扫描点，而不牺牲读取性能，因为光电二极管仅“看到”仅通过观察窗可见的扫描点的那部分。