Illumination system in imaging scanner
    41.
    发明授权
    Illumination system in imaging scanner 有权
    成像扫描仪中的照明系统

    公开(公告)号:US08757494B2

    公开(公告)日:2014-06-24

    申请号:US13245967

    申请日:2011-09-27

    Inventor: Igor Vinogradov

    CPC classification number: G06K7/10742

    Abstract: A barcode imaging reader includes a housing, a window in the housing, and an imaging sensor having an array of photosensitive elements for capturing light passing through the window. The barcode imaging reader further includes an illumination arrangement for emitting an illumination light from the housing interior to illuminate a barcode target object spaced from the housing. The illumination arrangement includes (i) an illumination source within the housing operative to generate the illumination light during imaging capture, (ii) a first mirror having a shape of a toroidal surface with predominantly concave surface, and (iii) a second mirror having a shape of a toroidal surface with predominantly convex surface.

    Abstract translation: 条形码图像读取器包括壳体,壳体中的窗口和具有用于捕获通过窗口的光的感光元件阵列的成像传感器。 条形码图像读取器还包括用于从壳体内部发射照明光以照亮与壳体间隔开的条形码目标物体的照明装置。 照明装置包括(i)壳体内的照明源,用于在成像捕获期间产生照明光,(ii)具有主要为凹面的环形表面的形状的第一反射镜,以及(iii)具有 具有主要凸起表面的环形表面的形状。

    Arrangement for and method of generating uniform distributed illumination pattern for imaging reader
    42.
    发明授权
    Arrangement for and method of generating uniform distributed illumination pattern for imaging reader 有权
    为成像读取器生成均匀分布照明图案的布置和方法

    公开(公告)号:US08450708B2

    公开(公告)日:2013-05-28

    申请号:US12792222

    申请日:2010-06-02

    CPC classification number: G06K7/10732 G06K7/10831

    Abstract: A substantially uniform distributed illumination pattern of light is generated on and along a symbol to be read by image capture. A solid-state imager is mounted on a tilted printed circuit board in a tilted handle of an ergonomic reader. An imaging lens assembly captures return light over a field of view from the symbol along an imaging axis, and projects the captured return light onto the imager. An illumination light source is mounted on the board for emitting illumination light at an acute angle of inclination relative to the imaging axis. An optical component includes a first lens portion with a polynomial incident surface for intercepting, bending and aligning the emitted illumination light to generate the pattern in a scan direction along the symbol, and a second lens portion with a toroidal or cylindrical aspherical surface for collimating the aligned illumination light to generate the pattern in a transverse direction.

    Abstract translation: 沿着要通过图像捕获读取的符号并沿着符号产生基本均匀的分布照明图案。 固态成像仪安装在人体工学读取器的倾斜手柄上的倾斜印刷电路板上。 成像透镜组件沿着成像轴从符号的视场中捕获返回光,并将捕获的返回光投射到成像器上。 照明光源安装在板上用于发射相对于成像轴线的锐角的照明光。 光学部件包括具有多项式入射表面的第一透镜部分,用于截取,弯曲和对齐发射的照明光以沿着符号在扫描方向上产生图案,以及具有环形或圆柱形非球面的第二透镜部分,用于准直 对准的照明光以在横向上产生图案。

    Method and apparatus for estimating exposure time for imaging-based barcode scanners
    43.
    发明授权
    Method and apparatus for estimating exposure time for imaging-based barcode scanners 有权
    用于估计基于成像的条形码扫描仪的曝光时间的方法和装置

    公开(公告)号:US08245937B2

    公开(公告)日:2012-08-21

    申请号:US12549060

    申请日:2009-08-27

    CPC classification number: G06K7/10722 G06K7/10752

    Abstract: A method and apparatus for estimating an optimized exposure time for an imaging-based barcode scanner. The method includes (1) determining a SNR decodability function that enables a decodability value be determined from a signal-to-noise ratio; (2) determining a blur decodability function that enables a decodability value be determined from a blur value; (3) measuring a blur and a signal-to-noise ratio for an image captured with a first exposure time; and (4) determining an optimized exposure time based on the measured blur, the measured signal-to-noise ratio, and a combined decodability function that depends upon both the SNR decodability function and the blur decodability function.

    Abstract translation: 一种用于估计基于成像的条形码扫描仪的优化曝光时间的方法和装置。 该方法包括:(1)确定能够从信噪比确定可解码值的SNR可解码性函数; (2)确定使得能够从模糊值确定可解码值的模糊可解码功能; (3)测量用第一曝光时间拍摄的图像的模糊和信噪比; 和(4)基于所测量的模糊,所测量的信噪比以及取决于SNR可解码功能和模糊可解码功能两者的组合可解码功能来确定优化的曝光时间。

    Imaging reader for and method of improving visibility of aiming pattern
    44.
    发明授权
    Imaging reader for and method of improving visibility of aiming pattern 有权
    成像阅读器和提高瞄准模式可见性的方法

    公开(公告)号:US08201740B2

    公开(公告)日:2012-06-19

    申请号:US11906090

    申请日:2007-09-28

    CPC classification number: G06K7/14 G06K2207/1011

    Abstract: An aiming light assembly supported by a mobile imaging reader projects an aiming light pattern on a symbol. A controller modulates the aiming light pattern to render the aiming light pattern more visibly discernible to an operator, especially in a brightly lit ambient environment, to enable the operator to position the aiming light pattern on the symbol prior to reading.

    Abstract translation: 由移动成像读取器支持的瞄准光组件将符号上的瞄准光图案投射。 控制器调制瞄准光图案,以使操作者更明显地识别瞄准光图案,特别是在明亮的周围环境中,以使操作者能够在读取之前将瞄准光图案定位在符号上。

    Laser power control arrangements in electro-optical readers
    45.
    发明授权
    Laser power control arrangements in electro-optical readers 有权
    电光读取器中的激光功率控制装置

    公开(公告)号:US08002186B2

    公开(公告)日:2011-08-23

    申请号:US12288803

    申请日:2008-10-23

    CPC classification number: G06K7/10584 G06K7/10702 G06K7/10851

    Abstract: A laser power control arrangement and method in an electro-optical reader for reading indicia includes an energizable laser for emitting a laser beam having an output power along a path. An internal light detector, e.g., a monitor photodiode, is mounted inside the laser for monitoring the output power of the laser. An external light detector, e.g., an auxiliary photodiode, is mounted outside the laser for monitoring the output power of the laser independently of the internal light detector. A guide, advantageously a light pipe or a diffuser, is positioned outside the laser in the path of the laser beam for guiding the laser beam from the laser to the external light detector. A controller is operatively connected to each light detector, for controlling a monitored output power of the laser beam by deenergizing the laser when the monitored output power of the laser beam exceeds a safe power level limit.

    Abstract translation: 用于读取标记的电光读取器中的激光功率控制装置和方法包括用于发射具有沿着路径的输出功率的激光束的可激励激光器。 内部光检测器,例如监视器光电二极管,安装在激光器的内部,用于监视激光器的输出功率。 外部光检测器(例如辅助光电二极管)安装在激光器的外部,用于独立于内部光检测器监视激光器的输出功率。 引导件,有利地是光管或扩散器,位于激光束的路径内,用于将激光束从激光器引导到外部光检测器。 控制器可操作地连接到每个光检测器,用于当所监视的激光束的输出功率超过安全功率电平限制时,通过对激光器通电来控制激光束的监测输出功率。

    Imaging zoom lens assembly for an imaging-based bar code reader
    46.
    发明授权
    Imaging zoom lens assembly for an imaging-based bar code reader 有权
    用于基于成像的条形码读取器的成像变焦镜头组件

    公开(公告)号:US07793840B2

    公开(公告)日:2010-09-14

    申请号:US12044724

    申请日:2008-03-07

    Inventor: Igor Vinogradov

    CPC classification number: G06K7/10702

    Abstract: A variable focus imaging lens assembly for an imaging-based bar code reader for imaging a target bar code within a field of view of the imaging system, the imaging lens assembly comprising a simplified zoom lens assembly or system that provides for both focusing and adjustment of focal length of the imaging lens assembly with movement of a single group of movable lenses using one motor. The zoom lens assembly includes a stationary lens group comprising a plurality of stationary lenses and a movable lens group comprising a plurality of movable lenses movable with respect to a sensor array of the imaging system. The movable lens group is driven by a motor along a path of travel parallel to an optic axis of the imaging lens assembly, at least one lens of the plurality of stationary lenses being intermediate a pair of lenses of the plurality of movable lenses.

    Abstract translation: 一种用于基于成像的条形码读取器的可变焦距成像透镜组件,用于在成像系统的视场内成像目标条形码,所述成像透镜组件包括简化的变焦透镜组件或系统,其提供聚焦和调整 使用一个电动机移动单组可移动​​透镜的成像透镜组件的焦距。 所述变焦透镜组件包括固定透镜组,所述静止透镜组包括多个固定透镜,以及可移动透镜组,所述可移动透镜组包括相对于所述成像系统的传感器阵列可移动的多个可移动透镜。 可移动透镜组由马达沿平行于成像透镜组件的光轴的行进路径驱动,多个静止透镜中的至少一个透镜位于多个可移动透镜的一对透镜的中间。

    Compact autofocus bar code reader with moving mirror
    47.
    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

    CPC classification number: G06K7/10811

    Abstract: 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.

    Abstract translation: 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。

    Selective working distance range restriction in imaging system
    48.
    发明申请
    Selective working distance range restriction in imaging system 有权
    成像系统中选择性工作距离范围限制

    公开(公告)号:US20100108766A1

    公开(公告)日:2010-05-06

    申请号:US12290797

    申请日:2008-11-04

    CPC classification number: G06K7/10722 G06K7/10792

    Abstract: An imaging system for, and a method of, electro-optically reading a symbol located within a range of working distances from the system, utilize a solid-state imager having an array of image sensors for capturing return light from the symbol over a field of view and for generating an electrical signal indicative of the captured return light, and a controller operative for decoding the electrical signal into data indicative of the symbol, and for determining that the symbol has been successfully decoded. The symbol has a plurality of optical characteristics, such as symbol element size and contrast, which vary with working distance. A memory stores a known set of values of the size and contrast characteristics of the symbol when the symbol lies in a restricted zone within the range of working distances. The controller is further operative, after the symbol has been successfully decoded, for processing the size and contrast characteristics of the decoded symbol, and for determining that the decoded symbol has been successfully read within the restricted zone when each size and contrast characteristic lies within the known set of values stored by the memory.

    Abstract translation: 用于电光学读取位于距离系统的工作距离范围内的符号的成像系统和利用具有图像传感器阵列的固态成像器来捕获来自符号的返回光, 视图和用于产生指示所捕获的返回光的电信号,以及控制器,用于将电信号解码成指示符号的数据,并且用于确定符号已被成功解码。 符号具有多个光学特性,诸如符号元素大小和对比度,其随工作距离而变化。 当符号位于工作距离范围内的限制区域中时,存储器存储符号的尺寸和对比度特性的一组已知值。 控制器在符号被成功解码之后进一步操作,用于处理解码符号的大小和对比度特性,并且当每个大小和对比特征位于该限制区内时,确定解码符号已经在限制区内成功读取 由存储器存储的已知的一组值。

    ILLUMINATION SYSTEM FOR A BAR CODE READER
    49.
    发明申请
    ILLUMINATION SYSTEM FOR A BAR CODE READER 审中-公开
    一个条码读取器的照明系统

    公开(公告)号:US20100051696A1

    公开(公告)日:2010-03-04

    申请号:US12199110

    申请日:2008-08-27

    CPC classification number: G06K7/10732

    Abstract: A method and apparatus for illuminating a target object such as a bar code having areas of differing light intensity on the target. A bar code reader has a light source that is selectively activated, a screen having a slit aperture for creating a narrow light beam, a reflecting mirror for reflecting light transmitted through the slit aperture and a lens for shaping light reflected by the mirror to form an elongated target/illumination pattern.

    Abstract translation: 一种用于照射目标物体的方法和装置,例如在靶上具有不同光强度的区域的条形码。 条形码阅读器具有选择性地激活的光源,具有用于产生窄光束的狭缝孔的屏幕,用于反射透过狭缝孔的光的反射镜和用于成形由镜反射的光的透镜,以形成 细长目标/照明图案。

    SEMI-ZOOM IMAGING OPTICAL SYSTEM
    50.
    发明申请
    SEMI-ZOOM IMAGING OPTICAL SYSTEM 审中-公开
    半成像成像光学系统

    公开(公告)号:US20090302116A1

    公开(公告)日:2009-12-10

    申请号:US12132753

    申请日:2008-06-04

    CPC classification number: G06K7/10831 G06K7/10722 G06K7/10811

    Abstract: An apparatus includes a first lens, a liquid lens, imaging sensor arrays, an aperture stop, and a barcode decoding system. The first lens has a fixed optical power. The liquid lens has a variable optical power. The imaging sensor arrays are operable to receive light passing through both the first lens and the liquid lens. The liquid lens is positioned between the aperture stop and the imaging sensor arrays. The barcode decoding system receives signals from the imaging sensor arrays.

    Abstract translation: 一种装置包括第一透镜,液体透镜,成像传感器阵列,孔径光阑和条形码解码系统。 第一透镜具有固定的光功率。 液体透镜具有可变的光焦度。 成像传感器阵列可操作以接收通过第一透镜和液体透镜两者的光。 液体透镜位于孔径光阑和成像传感器阵列之间。 条形码解码系统从成像传感器阵列接收信号。

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