利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

97 条记录 (耗时 0.024 秒)

    Arrangement for and method of improving image quality, especially for image projection arrangements
    71.
    发明申请
    Arrangement for and method of improving image quality, especially for image projection arrangements 有权
    提高图像质量的方法和方法，特别是图像投影安排

    公开(公告)号：US20070201120A1

    公开(公告)日：2007-08-30

    申请号：US11789735

    申请日：2007-04-25

    申请人： Chinh Tan ,  Miklos Stern

    发明人： Chinh Tan ,  Miklos Stern

    IPC分类号： G02B26/08

    CPC分类号： H04N9/3129 ,  G03B21/2073 ,  G03B33/12

    摘要： A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color. The brightness of the illuminated pixels is enhanced by combining constituent laser beams of the same wavelength. The contrast of the illuminated pixels is improved by sweeping a composite beam across a polarized screen, and by making the polarizations of all the constituent laser beams of the composite beam the same.

    摘要翻译： 特别是用于安装在具有透光窗口的壳体中的轻巧紧凑的图像投影模块可操作用于使光栅图案中的所选像素被照亮以产生VGA质量的高分辨率图像。 通过组合相同波长的组成激光束来增强照明像素的亮度。 通过扫描复合光束穿过偏振屏幕并通过使复合光束的所有组成激光束的偏振相同来改善照明像素的对比度。

    Axial chromatic aberration auto-focusing system and method
    74.
    发明申请
    Axial chromatic aberration auto-focusing system and method 有权
    轴向色差自动对焦系统及方法

    公开(公告)号：US20050045725A1

    公开(公告)日：2005-03-03

    申请号：US10648176

    申请日：2003-08-25

    申请人： Vladimir Gurevich ,  Mark Krichever ,  Bradley Carlson ,  Chinh Tan

    发明人： Vladimir Gurevich ,  Mark Krichever ,  Bradley Carlson ,  Chinh Tan

    IPC分类号： G06K7/10 ,  G03B7/08 ,  G06K5/00 ,  G06K7/14

    CPC分类号： G06K7/10811

    摘要： A system and method utilizing the principles of axial chromatic aberration for auto-focusing an image onto an image sensor are provided. The system and method are particularly suitable for incorporation within an optical code reader. A signal processor analyzes data signals representative of the intensity or magnitude of wavelength components of an impinged image onto the image sensor for determining a value indicative of the focus quality of the impinged image. An actuator controls movement of a lens in accordance with the determination until obtainment of a desired focus quality. A decoder decodes the image having the desired focus quality.

    摘要翻译： 提供了利用轴向色差原理将图像自动聚焦到图像传感器上的系统和方法。 该系统和方法特别适用于并入光学代码阅读器。 信号处理器将表示入射图像的波长分量的强度或幅度的数据信号分析到图像传感器上，以确定表示冲击图像的聚焦质量的值。 执行器根据确定控制透镜的移动，直到获得期望的聚焦质量。 解码器对具有所需焦点质量的图像进行解码。

    Laser focusing aperture and method
    75.
    发明授权
    Laser focusing aperture and method 失效
    激光聚焦孔径和方法

    公开(公告)号：US06454167B1

    公开(公告)日：2002-09-24

    申请号：US09373279

    申请日：1999-08-12

    申请人： Edward Barkan ,  Chinh Tan ,  Vikram Bhargava ,  Miklos Stern

    发明人： Edward Barkan ,  Chinh Tan ,  Vikram Bhargava ,  Miklos Stern

    IPC分类号： G06K710

    CPC分类号： G06K7/10881 ,  G02B7/32 ,  G06K7/10633 ,  G06K2207/1011

    摘要： Light is focused in a system for electro-optically scanning and reading bar code symbols by an aperture stop having a first optical portion for optically modifying a first part of a light beam to have a beam cross-section of a known size within a depth of field in which a symbol to be read is scanned by the first beam part, and a second light-transmissive, optical portion bounding the first portion and operative for optically modifying and directing a second part of the light beam away from the first part.

    摘要翻译： 光聚焦在用于电光学扫描和读取条形码符号的系统中，所述系统具有孔径光阑，所述孔径光阑具有第一光学部分，用于光学地修饰光束的第一部分，以具有已知尺寸的光束横截面， 其中待读取的符号由第一光束部分扫描;以及第二透光光学部分，其界定第一部分并且用于光学修改并将光束的第二部分引导离开第一部分。

    Dual laser aiming patterns for an imaging-based bar code reader
    76.
    发明授权
    Dual laser aiming patterns for an imaging-based bar code reader 有权
    用于基于成像的条形码阅读器的双激光瞄准图案

    公开(公告)号：US08087587B2

    公开(公告)日：2012-01-03

    申请号：US12343712

    申请日：2008-12-24

    申请人： Igor Vinogradov ,  Chinh Tan

    发明人： Igor Vinogradov ,  Chinh Tan

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10722 ,  G06K7/10801 ,  G06K7/109 ,  G06K2207/1011

    摘要： An aiming pattern assembly for an imaging-based bar code reader including: a laser assembly laterally offset from an imaging lens assembly optical axis, the laser assembly including a first laser light source and a second laser light source; and a focusing lens defining an optical axis and positioned proximate to the laser assembly, the focusing lens focusing the laser light generated by the first laser light source to generate a first aiming pattern traversing along a first beam path and focusing the laser light generated by the second laser light source to generate a second aiming pattern traversing along a second beam path, the first laser light source being aligned with the focusing lens optical axis and the second laser light source being laterally offset from the focusing lens optical axis resulting in the second beam path crossing the imaging lens assembly optical axis in a near working range.

    摘要翻译： 一种用于基于成像的条形码读取器的瞄准图案组件，包括：激光组件，其横向偏离成像透镜组件光轴，所述激光组件包括第一激光光源和第二激光光源; 以及限定光轴并且靠近激光组件定位的聚焦透镜，聚焦透镜聚焦由第一激光光源产生的激光，以产生沿着第一光束路径移动的第一瞄准图案，并且聚焦由 第二激光源产生沿着第二光束路径移动的第二瞄准图案，所述第一激光光源与所述聚焦透镜光轴对准，并且所述第二激光光源从所述聚焦透镜光轴横向偏移，从而产生所述第二光束 在接近工作范围内穿过成像透镜组件光轴的路径。

    DUAL LASER AIMING PATTERNS FOR AN IMAGING-BASED BAR CODE READER
    77.
    发明申请
    DUAL LASER AIMING PATTERNS FOR AN IMAGING-BASED BAR CODE READER 有权
    用于基于成像的条码读取器的双激光瞄准图案

    公开(公告)号：US20100155481A1

    公开(公告)日：2010-06-24

    申请号：US12343712

    申请日：2008-12-24

    申请人： Igor Vinogradov ,  Chinh Tan

    发明人： Igor Vinogradov ,  Chinh Tan

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10722 ,  G06K7/10801 ,  G06K7/109 ,  G06K2207/1011

    摘要： An aiming pattern assembly for an imaging-based bar code reader including: a laser assembly laterally offset from an imaging lens assembly optical axis, the laser assembly including a first laser light source and a second laser light source; and a focusing lens defining an optical axis and positioned proximate to the laser assembly, the focusing lens focusing the laser light generated by the first laser light source to generate a first aiming pattern traversing along a first beam path and focusing the laser light generated by the second laser light source to generate a second aiming pattern traversing along a second beam path, the first laser light source being aligned with the focusing lens optical axis and the second laser light source being laterally offset from the focusing lens optical axis resulting in the second beam path crossing the imaging lens assembly optical axis in a near working range.

    摘要翻译： 一种用于基于成像的条形码读取器的瞄准图案组件，包括：激光组件，其横向偏离成像透镜组件光轴，所述激光组件包括第一激光光源和第二激光光源; 以及限定光轴并且靠近激光组件定位的聚焦透镜，聚焦透镜聚焦由第一激光光源产生的激光，以产生沿着第一光束路径移动的第一瞄准图案，并且聚焦由 第二激光源产生沿着第二光束路径移动的第二瞄准图案，所述第一激光光源与所述聚焦透镜光轴对准，并且所述第二激光光源从所述聚焦透镜光轴横向偏移，从而产生所述第二光束 在接近工作范围内穿过成像透镜组件光轴的路径。

    Axial chromatic aberration auto-focusing system and method
    79.
    发明授权
    Axial chromatic aberration auto-focusing system and method 有权
    轴向色差自动对焦系统及方法

    公开(公告)号：US07478754B2

    公开(公告)日：2009-01-20

    申请号：US10648176

    申请日：2003-08-25

    申请人： Vladimir Gurevich ,  Mark Krichever ,  Bradley S. Carlson ,  Chinh Tan

    发明人： Vladimir Gurevich ,  Mark Krichever ,  Bradley S. Carlson ,  Chinh Tan

    IPC分类号： G03B7/08

    CPC分类号： G06K7/10811

    摘要： A system and method utilizing the principles of axial chromatic aberration for auto-focusing an image onto an image sensor are provided. The system and method are particularly suitable for incorporation within an optical code reader. A signal processor analyzes data signals representative of the intensity or magnitude of wavelength components of an impinged image onto the image sensor for determining a value indicative of the focus quality of the impinged image. An actuator controls movement of a lens in accordance with the determination until obtainment of a desired focus quality. A decoder decodes the image having the desired focus quality.

    摘要翻译： 提供了利用轴向色差原理将图像自动聚焦到图像传感器上的系统和方法。 该系统和方法特别适用于并入光学代码阅读器。 信号处理器将表示入射图像的波长分量的强度或幅度的数据信号分析到图像传感器上，以确定表示冲击图像的聚焦质量的值。 执行器根据确定控制透镜的移动，直到获得期望的聚焦质量。 解码器对具有所需焦点质量的图像进行解码。