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    • 42. 发明授权
    • Selective working distance range restriction in imaging system
    • 成像系统中选择性工作距离范围限制
    • US09010643B2
    • 2015-04-21
    • US12290797
    • 2008-11-04
    • Dariusz J. MadejIgor Vinogradov
    • Dariusz J. MadejIgor Vinogradov
    • G06K15/12G06K7/10G06K7/14
    • G06K7/10722G06K7/10792
    • An imaging system for electro-optically reading a symbol located within a range of working distances from the system, utilizes a solid-state imager for capturing return light from the symbol and for generating an electrical signal indicative of the captured return light, and a controller for decoding the electrical signal into data indicative of the symbol A memory stores a known set of values for a plurality of optical characteristics of the symbol, such as size and contrast characteristics of the symbol when the symbol lies in a restricted zone within the range of working distances. The controller is 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.
    • 一种用于电光读取位于距系统的工作距离范围内的符号的成像系统,利用固态成像器来捕获来自符号的返回光并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A的数据存储器存储用于符号的多个光学特性的已知的一组值,例如当符号位于范围内的限制区域中时,符号的大小和对比特性 工作距离 在符号被成功解码之后,控制器可操作,用于处理解码符号的大小和对比度特性,并且用于当每个尺寸和对比度特性位于已知的位置内时,确定解码符号已经在限制区内成功读取 存储器存储的值集合。
    • 44. 发明授权
    • Bar code reader with improved lens for imaging with balanced astigmatism
    • 条形码阅读器,具有改进的透镜,用于具有平衡散光的成像
    • US08201743B2
    • 2012-06-19
    • US11769798
    • 2007-06-28
    • Igor Vinogradov
    • Igor Vinogradov
    • G06K7/10G06K15/12
    • G06K7/10831G06K7/10722
    • An exemplary imaging based barcode reader has an imaging system that includes a photosensitive array, a focusing lens fixed with respect to the light detecting array which creates an image of a target object on the light detecting array; and an aperture stop fixed in relation to the focusing lens having an opening that allows light from the target object to impinge upon the lens for focusing onto the light detecting array. The focusing lens has a surface facing the aperture stop that is toroidal and in one exemplary embodiment approximates a cylinder that balances or optimizes. Astigmatism of the lens in the imaging plane located in the close proximity to the photosensitive array.
    • 一种示例性的基于成像的条形码读取器具有成像系统,其包括光敏阵列,相对于光检测阵列固定的聚焦透镜,其在光检测阵列上产生目标物体的图像; 以及相对于聚焦透镜固定的孔径光阑,其具有允许来自目标物体的光照射在透镜上用于聚焦到光检测阵列上的开口。 聚焦透镜具有面向环形的孔径光阑的表面,并且在一个示例性实施例中近似于平衡或优化的圆柱体。 位于光敏阵列附近的成像平面中的透镜的散光。
    • 45. 发明申请
    • Self-calibrating, automatic focusing assembly in electro-optical readers
    • 自校准,自动对焦组件在电光读取器中
    • US20100108765A1
    • 2010-05-06
    • US12290799
    • 2008-11-04
    • Igor Vinogradov
    • Igor Vinogradov
    • G06K7/10
    • G06K7/10801G02B26/005G02B27/40
    • An electro-optical reader for, and method of, reading a symbol, utilize a light source for emitting a light beam along a path, an optical assembly including a variable focusing element for focusing a major light fraction of the light beam between a range of working distances in which the symbol to be read is located along the path, and a controller for controlling the variable focusing element to have different focusing states. One of the focusing states is a reference focusing state in which the variable focusing element is operative for focusing the major light fraction at a reference focal plane. A detector assembly, including a detector aperture located at the reference focal plane, is operative for detecting an amount of a minor light fraction of the light beam, and for generating a self-calibration signal indicative of the reference focusing state when a predetermined amount of the minor light fraction has been detected. The controller is operative for processing the self-calibration signal to determine the reference focusing state for the variable focusing element during reading.
    • 用于读取符号的电光读取器和读取符号的方法利用光源沿着路径发射光束,光学组件包括可变聚焦元件,用于将光束的主要轻部分聚焦在一定范围内 要读取的符号沿路径设置的工作距离,以及用于控制可变聚焦元件具有不同聚焦状态的控制器。 聚焦状态之一是参考对焦状态,其中可变聚焦元件用于将主要轻分数聚焦在参考焦平面。 包括位于参考焦平面处的检测器孔的检测器组件可操作用于检测光束的次要光分量的量,并且用于当预定量的光束时产生指示参考聚焦状态的自校准信号 已经检测到轻微部分。 控制器用于处理自校准信号以确定读取期间可变聚焦元件的参考聚焦状态。
    • 47. 发明申请
    • Imaging Zoom Lens Assembly For An Imaging-Based Bar Code Reader
    • 用于基于成像的条形码读取器的成像变焦镜头组件
    • US20090224051A1
    • 2009-09-10
    • US12044724
    • 2008-03-07
    • Igor Vinogradov
    • Igor Vinogradov
    • G06K7/10
    • G06K7/10702
    • 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.
    • 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。
    • 49. 发明申请
    • ILLUMINATION APPARATUS FOR AN IMAGING-BASED BAR CODE READER
    • 基于成像的条形码读取器的照明设备
    • US20080290171A1
    • 2008-11-27
    • US11751142
    • 2007-05-21
    • Igor Vinogradov
    • Igor Vinogradov
    • G06K7/10
    • G06K7/10831
    • An illumination apparatus (40) for an imaging-based bar code reader (10) having a field of view (FV) defined by an imaging system (12) of the bar code reader directed toward a target object (32). The illumination apparatus (40) includes: an illumination source (42); an aperture plate (44) defining a plurality of spaced apart apertures (44a-44f) aligned with the illumination source (42) such that illumination generated by the illumination source (42) passes through each of the plurality of apertures (44a-44f) of the aperture plate (44); and a lens array (46) defining a plurality of substantially contiguous lens elements (46a-46f) aligned with respective apertures (44a-44f) of the aperture plate (44) such that for each aperture (44a-44f) of the aperture plate (44) illumination passing through the aperture (44a-44f) is focused by a respective corresponding lens element (46a-46f).
    • 一种用于基于成像的条形码读取器(10)的照明装置(40),其具有由朝向目标物体(32)的条形码读取器的成像系统(12)限定的视野(FV)。 照明装置(40)包括:照明源(42); 限定与所述照明源(42)对准的多个间隔开的孔(44a-44f)的孔板(44),使得由所述照明源(42)产生的照明通过所述多个孔(44a-44f)中的每一个, 的孔板(44); 以及透镜阵列(46),其限定与孔板(44)的相应孔(44a-44f)对准的多个基本上邻接的透镜元件(46a-46f),使得对于孔板的每个孔(44a-44f) (44)通过孔径(44a-44f)的照明被相应的对应透镜元件(46a-46f)聚焦。