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51. 发明授权

US07025273B2 Miniature auto focus voice coil actuator system 失效
标题翻译：微型自动对焦音圈执行器系统
公开(公告)号：US07025273B2
公开(公告)日：2006-04-11
申请号：US10425344
申请日：2003-04-29
申请人： Alex Breytman , Mark Krichever , Bradley S. Carlson , David Tsi Shi
发明人： Alex Breytman , Mark Krichever , Bradley S. Carlson , David Tsi Shi
IPC分类号： G02B26/00 , G06K7/10
CPC分类号： G06K7/0004 , G06K7/0008 , G06K7/10386 , G06K7/10722 , G06K7/10811 , G06K9/726 , G06K19/14 , G06K2209/01
摘要： Actuator systems are provided for automatically focusing an optical image reader. Techniques are also provided which are applicable to the design of imaging engines and imaging lens systems associated with image readers of various types. More specifically, the present invention relates to lens guidance assemblies and actuator systems for automatically focusing an objective lens associated with an imaging system of an optical image reader. The optical image reader is preferably an optical code image reader for imaging optical codes, such as bar codes.
摘要翻译：提供致动器系统用于自动聚焦光学图像读取器。还提供了适用于与各种图像读取器相关联的成像引擎和成像透镜系统的设计的技术。更具体地，本发明涉及用于自动聚焦与光学图像读取器的成像系统相关联的物镜的透镜引导组件和致动器系统。光学图像读取器优选地是用于对诸如条形码的光学代码进行成像的光学代码图像读取器。

52. 发明授权

US06651886B2 Optical code readers with holographic optical elements 有权
公开(公告)号：US06651886B2
公开(公告)日：2003-11-25
申请号：US09833861
申请日：2001-04-13
申请人： Vladimir Gurevich , Mark Krichever , Igor R. Vinogradov , Matthew Blasczak , Thomas D. Bianculli , Shinji Nagano , Mehul Patel
发明人： Vladimir Gurevich , Mark Krichever , Igor R. Vinogradov , Matthew Blasczak , Thomas D. Bianculli , Shinji Nagano , Mehul Patel
IPC分类号： G06K710
CPC分类号： G02B26/106 , G06K7/10663
摘要： Holographic optical elements are configured and deployed in optical imagers and scanners to produce optical modification of output laser beams and light received and detected by the system. In some preferred embodiments electrically switchable holographic optical elements (ESHOEs) are employed for beam tilting, for varying spot size and shape for modifying system focal distance and field of view, for changing laser aiming patterns and/or for color imaging.

53. 发明授权

US6092728A Miniature laser diode focusing module using micro-optics 失效
标题翻译：微型激光二极管聚焦模块采用微光学
公开(公告)号：US6092728A
公开(公告)日：2000-07-25
申请号：US352542
申请日：1999-07-12
申请人： Yajun Li , Simon Bard , Mark Krichever , Joseph Katz , Chin Tan
发明人： Yajun Li , Simon Bard , Mark Krichever , Joseph Katz , Chin Tan
IPC分类号： G06K7/10
CPC分类号： G06K7/10811
摘要： A miniature module emits and focuses a divergent light beam. The focusing module consists of a small-sized light emitter, such as a laser diode, and a micro-optical element seated in a lens holder. The outside diameter of the micro-optical element is 4 mm or less and preferably less than or equal to 2.5 mm. The micro-optical element may be a small conventional lens, a gradient index lens, or one of several types of diffractive optical element. The focal length of the module relative to the light from the emitter is set by sliding the lens holder along its central axis and permanently adhering it in place with respect to the emitter after focusing. During focal adjustment, axial rotation between the lens holder and between the base of the emitter is prevented by a series of notches. The miniature focusing module is smaller, lighter, costs less and may provide a larger relative aperture than the conventional structures currently used for example in solid state laser scanners.
摘要翻译：微型模块发射和聚焦发散光束。聚焦模块由诸如激光二极管的小尺寸光发射器和坐在透镜架中的微光学元件组成。微型光学元件的外径为4mm以下，优选为2.5mm以下。微型光学元件可以是小型常规透镜，梯度折射率透镜或几种衍射光学元件中的一种。模块相对于来自发射器的光的焦距通过沿着其中心轴滑动透镜夹持器来设定，并且在聚焦之后相对于发射器永久地将其固定在适当的位置。在焦距调整期间，通过一系列凹口来防止透镜保持器和发射器的基座之间的轴向旋转。微型聚焦模块更小，更轻，成本更低，并且可以提供比目前用于例如固态激光扫描仪的常规结构更大的相对孔径。

54. 发明授权

US07478754B2 Axial chromatic aberration auto-focusing system and method 有权
标题翻译：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。

55. 发明授权

US07025271B2 Imaging optical code reader having selectable depths of field 有权
标题翻译：具有可选景深的成像光学代码读取器
公开(公告)号：US07025271B2
公开(公告)日：2006-04-11
申请号：US10405812
申请日：2003-04-02
申请人： Paul Dvorkis , Alex Breytman , Mark Krichever , Brad Carlson , Tsi David Shi
发明人： Paul Dvorkis , Alex Breytman , Mark Krichever , Brad Carlson , Tsi David Shi
IPC分类号： G02B26/08 , G06K7/10
CPC分类号： G06K19/14 , G06K7/0004 , G06K7/0008 , G06K7/10386 , G06K7/10722 , G06K7/10811
摘要： Several optical systems for imaging engines of imaging optical code readers are disclosed. Each optical system includes the abilities to change the depth of field of the imaging field and to adjust a focus quality of the imaging field. The disclosed structures for changing the depth of field of the disclosed optical systems allow for the automatic or manual selection of one of a plurality of depths of field.
摘要翻译：公开了用于成像光学代码读取器的成像引擎的几个光学系统。每个光学系统包括改变成像场的景深并调整成像场的焦点质量的能力。用于改变所公开的光学系统的景深的所公开的结构允许自动或手动选择多个景深中的一个。

56. 发明授权

US06918538B2 Image scanning device having a system for determining distance to a target 有权
标题翻译：具有用于确定与目标的距离的系统的图像扫描装置
公开(公告)号：US06918538B2
公开(公告)日：2005-07-19
申请号：US10425499
申请日：2003-04-29
申请人： Alex Breytman , Mark Krichever , Brad Carlson , Tsi David Shi , Dmitriy Yavid
发明人： Alex Breytman , Mark Krichever , Brad Carlson , Tsi David Shi , Dmitriy Yavid
IPC分类号： G06K7/00 , G06K7/10 , G06K19/14
CPC分类号： G06K19/14 , G06K7/0004 , G06K7/0008 , G06K7/10386 , G06K7/10722 , G06K7/10811
摘要： An image scanning device is provided which includes a system for determining the distance to a target to be scanned. The image scanning device includes an optical system and an image sensor array for focusing a light beam and imaging the target. The device preferably includes an automatic focusing system for adjusting the position of the optical system in order to adjust the focal point, and thereby focus the image of the target onto the image sensor array. In one embodiment of the image scanning device, the distance is determined by analyzing a collimated aiming pattern formed by collimating the light beam. In another embodiment, the distance is determined by analyzing a speckle pattern caused by the speckle effect upon the light beam hitting the target.
摘要翻译：提供一种图像扫描装置，其包括用于确定到要扫描的目标的距离的系统。图像扫描装置包括光学系统和用于聚焦光束并对靶成像的图像传感器阵列。该装置优选地包括用于调整光学系统的位置以便调整焦点的自动聚焦系统，从而将目标的图像聚焦到图像传感器阵列上。在图像扫描装置的一个实施例中，通过分析通过准直光束形成的准直瞄准图案来确定距离。在另一个实施例中，通过分析由光束撞击目标物上的斑点效应引起的散斑图案来确定距离。

57. 发明申请

US20050083451A1 Method and system for improving the contrast of LCDs using circular polarization 有权
标题翻译：用于改善使用圆极化的LCD的对比度的方法和系统
公开(公告)号：US20050083451A1
公开(公告)日：2005-04-21
申请号：US10690388
申请日：2003-10-21
申请人： Vladimir Gurevich , Mark Krichever
发明人： Vladimir Gurevich , Mark Krichever
IPC分类号： G02F1/133 , G02F1/1335
CPC分类号： G02F1/13338 , G02F1/133502 , G02F1/133528 , G02F1/133555
摘要： A display device displays images with reduced glare from external incident light. The device includes a back light located on a bottom surface of the display device to provide internal light. Moreover, the device includes an internal circular X-polarizer located external to the back light to circularly polarize internal light. In addition, the device includes a mirror to reflect external incident light. Furthermore, the device includes a liquid crystal display located external to the mirror and the internal circular X-polarizer to display images. The device also includes an external circular X-polarizer located external to the liquid crystal display to circularly polarize external incident light, and absorb reflected external incident light and polarized internal light.
摘要翻译：显示设备从外部入射光显示具有减少的眩光的图像。该装置包括位于显示装置的底表面上以提供内部光的背光。此外，该器件包括位于背光外部的内部圆形X偏振器，以使内部光线圆形偏振。另外，该装置包括反射外部入射光的反射镜。此外，该装置包括位于反射镜外部的液晶显示器和内部圆形X偏振器以显示图像。该装置还包括位于液晶显示器外部的外部圆形X偏振器，以使外部入射光圆偏振，并吸收反射的外部入射光和偏振内部光。

58. 发明申请

US20050011952A1 Non-parallax optical auto-focusing system and method 失效
标题翻译：非视差光学自动对焦系统及方法
公开(公告)号：US20050011952A1
公开(公告)日：2005-01-20
申请号：US10621283
申请日：2003-07-17
申请人： Mark Krichever
发明人： Mark Krichever
IPC分类号： G02B7/28 , G06K7/10 , G03B3/10 , G06K7/14
CPC分类号： G02B7/285 , G06K7/10722 , G06K7/10811
摘要： A non-parallax optical auto-focusing system focuses an image and determines a distance to an optical target without being prone to errors due to parallax. The system includes a first beam splitter, a second beam splitter, and a lens positioned therebetween on an optical axis. An aiming beam is directed towards an optical target and the redirected reflected beam is received by a quadrant sensor assembly for generating an output signal indicative of a parameter of the redirected reflected aiming beam. A processor receives the output signal and generates a control signal for actuating an actuator to reposition the lens. The system continues to position the lens until the measured parameter is within a predetermined range for optimally focusing the optical target on an image sensor. The distance to the optical target is determined by using a look-up table to correlate the measured parameter to the distance to the optical target.
摘要翻译：非视差光学自动对焦系统对图像进行聚焦并确定与光学目标的距离，而不会因视差而出现错误。该系统包括第一分束器，第二分束器和位于光轴之间的透镜。瞄准光束指向光学目标，并且重定向的反射光束被象限传感器组件接收，用于产生指示被重定向的反射瞄准光束的参数的输出信号。处理器接收输出信号并产生用于致动致动器以重新定位透镜的控制信号。系统继续定位透镜，直到测量的参数在预定范围内，以最佳地将光学对象聚焦在图像传感器上。通过使用查找表来确定与光学目标的距离，以将测量的参数与到光学目标的距离相关联。

59. 发明授权

US06708883B2 Apparatus and method for reading indicia using charge coupled device and scanning laser beam technology 有权
标题翻译：使用电荷耦合器件和扫描激光束技术读取标记的装置和方法
公开(公告)号：US06708883B2
公开(公告)日：2004-03-23
申请号：US10120338
申请日：2002-04-11
申请人： Mark Krichever
发明人： Mark Krichever
IPC分类号： G06K710
CPC分类号： G06K7/1092 , G06K7/10811 , G06K2207/1011 , G06K2207/1018
摘要： A scanning device for reading indicia of differing light reflectivity, including bar code symbols, has two parallel arrays of light emitters, such as lasers or light emitting diodes, for generating a scanning light beam to visually illuminate sequential portions of the indicia. Two parallel arrays of sensors, such as charge coupled or other solid state imaging devices, detect light reflected from portions of the indicia and generate an electrical signal representative of the spatial intensity variations of portions of the indicia. Each array is arranged transversely of the direction along which the symbol is scanned.
摘要翻译：用于读取不同光反射率的标记（包括条形码符号）的扫描装置具有两个平行的发光体阵列，例如激光器或发光二极管，用于产生扫描光束以目视照亮标记的顺序部分。诸如电荷耦合或其他固态成像装置的两个平行的传感器阵列检测从标记的部分反射的光并产生代表标记部分的空间强度变化的电信号。每个阵列横向排列符号扫描方向。

60. 发明授权

US06705525B2 Scanning system with adjustable optical characteristics 失效
标题翻译：具有可调节光学特性的扫描系统
公开(公告)号：US06705525B2
公开(公告)日：2004-03-16
申请号：US10256465
申请日：2002-09-27
申请人： Mark Krichever , Joseph Katz
发明人： Mark Krichever , Joseph Katz
IPC分类号： G06K710
CPC分类号： G02B5/285 , G02B26/007 , G06K7/10584 , G06K19/04
摘要： An optical scanner for scanning various optical indicia uses one or more tunable optical components for noise reduction purposes. The scanner may include a narrow band-pass tunable optical filter for passing selected wavelengths of incoming light. The scanner may also have a tunable light source, such as a tunable laser source, whereby the wavelength of the generated laser light is sensed and controlled by the scanner's electronic sub-system.
摘要翻译：用于扫描各种光学标记的光学扫描器使用一个或多个可调谐光学部件用于降噪目的。扫描器可以包括用于通过选定波长的入射光的窄带通可调谐光学滤波器。扫描器还可以具有可调光源，例如可调激光源，由此所产生的激光的波长由扫描仪的电子子系统感测和控制。

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