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    • 2. 发明申请
    • CPC ILLUMINATION APPARATUS FOR AN IMAGING-BASED BAR CODE READER
    • 基于成像的条码读取器的CPC照明设备
    • WO2009070435A1
    • 2009-06-04
    • PCT/US2008/082970
    • 2008-11-10
    • SYMBOL TECHNOLOGIES, INC.YU, MingLIU, RongHE, Duanfeng
    • YU, MingLIU, RongHE, Duanfeng
    • G06K9/00
    • G06K7/10732G02B3/0062G02B27/0966G06K7/10742G06K2207/1011
    • An illumination apparatus for an imaging-based bar code reader having a field of view defined by an imaging system of the bar code reader directed toward a target bar code. The illumination apparatus includes: a collector cup comprising a compound parabolic concentrator and defining a longitudinal axis; an illumination source positioned to direct illumination toward a first end of the collector cup, the collector cup directing illumination from the illumination source toward a second end of the collector cup; a first lens array positioned at the second end of the collector cup orthogonal to the collector cup longitudinal axis to receive and focus illumination from the collector cup and a second lens array orthogonal to the collector cup longitudinal axis receiving focused illumination from the first lens array. The lens arrays combining to focus illumination from the collector cup into an illumination pattern.
    • 一种用于基于成像的条形码读取器的照明装置,其具有由朝向目标条形码的条形码读取器的成像系统限定的视场。 照明装置包括:收集器杯,其包括复合抛物面聚光器并限定纵向轴线; 定位成朝向收集杯的第一端引导照明的照明源,收集器杯将照明源的照明引导到收集杯的第二端; 第一透镜阵列,位于收集器杯的与收集器杯纵向轴线正交的第二端处,以接收和聚焦来自收集器杯的照明;以及第二透镜阵列,其与收集器杯纵向轴线正交,从第一透镜阵列接收聚焦照明。 组合的透镜阵列将来自收集杯的照明聚焦成照明图案。
    • 3. 发明申请
    • IMAGING BAR CODE READER HAVING LIGHT EMITTING DIODE FOR GENERATING A FIELD OF VIEW
    • 具有发光二极管的成像条码读码器用于生成视场
    • WO2009070444A1
    • 2009-06-04
    • PCT/US2008/083166
    • 2008-11-12
    • SYMBOL TECHNOLOGIES, INC.LIU, RongYU, Ming
    • LIU, RongYU, Ming
    • G06K9/00
    • G06K7/10732G06K7/10831
    • The disclosed bar code reader has an imaging system that 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 bar code reader also includes an illumination system for illuminating the target having a light source for emitting a diverging light outwardly from a light source location and a lens for bending the light including a first surface facing the light source and a second surface facing the target for bending the light emitted by the light source to more uniformly illuminate a rectangular, generally planar region at the target within the barcode reader's field of view.
    • 所公开的条形码读取器具有成像系统,其包括光监视像素阵列和相对于像素阵列固定的聚焦透镜,用于将目标对象的图像传送到像素阵列上。 条形码阅读器还包括照明系统,用于照明具有用于从光源位置向外发射发散光的光源的目标,以及用于弯曲包含朝向光源的第一表面的光的透镜和面向目标的第二表面 用于弯曲由光源发射的光以更均匀地照亮条形码读取器的视野内的目标处的矩形大致平面的区域。