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。

公开(公告)号：USRE40101E1

公开(公告)日：2008-02-26

申请号：US11396226

申请日：2006-03-30

申请人： Mark Krichever ,  Joseph Campanelli ,  Lisa Courtney ,  Peter Fazekas ,  Joel Kahn ,  Jerome Swartz ,  Vladimir Gurevich ,  Boris Metlitsky

发明人： Mark Krichever ,  Joseph Campanelli ,  Lisa Courtney ,  Peter Fazekas ,  Joel Kahn ,  Jerome Swartz ,  Vladimir Gurevich ,  Boris Metlitsky

IPC分类号： G06K7/10

摘要： A wavelength selector in an optical scanner is operative for selecting a first laser beam having a predetermined wavelength to produce a first scan pattern, and for selecting a second laser beam having a different wavelength to produce a second scan pattern. The scan patterns have a different number of scan lines. The selected scan pattern is scanned over indicia, e.g., a bar code symbol, to be read.

摘要翻译： 光学扫描器中的波长选择器用于选择具有预定波长的第一激光束以产生第一扫描图案，并且用于选择具有不同波长的第二激光束以产生第二扫描图案。 扫描图案具有不同数量的扫描线。 所选择的扫描图案被扫描在要读取的标记（例如，条形码符号）上。

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。

公开(公告)号：US06543693B1

公开(公告)日：2003-04-08

申请号：US09558374

申请日：2000-04-26

申请人： Miklos Stern ,  Vladimir Gurevich ,  Mark Krichever

发明人： Miklos Stern ,  Vladimir Gurevich ,  Mark Krichever

IPC分类号： G06K0710

CPC分类号： G06K7/10742 ,  G06K7/10574 ,  G06K7/10643 ,  G06K7/10811 ,  H01S5/183 ,  H01S5/423

摘要： A scanning device incorporates a vertical cavity surface emitting laser (VCSEL). The laser diode may be mounted directly on an Si substrate which is adapted for movement to produce a scan pattern. A collimating lens may be directly mounted on the emitting surface of the laser. A plurality of lasers may be mounted on the substrate and operated in sequence without movement of the substrate to produce the effect of a scan. A single, variable-focal length lens is employed to focus each beam of the VCSEL at a different distance. The scanning device emits visible or invisible light towards a target such as a bar code and a detector (mounted on the same or an adjacent substrate) senses the light reflected by the target to produce data which is decoded for further processing. A VCSEL uses low current and emits light from a relatively large area so that a relatively large amount of light is emitted for relatively small heat generation.

摘要翻译： 扫描装置包括垂直腔表面发射激光器（VCSEL）。 激光二极管可以直接安装在适于移动以产生扫描图案的Si衬底上。 准直透镜可以直接安装在激光器的发射表面上。 多个激光器可以安装在基板上并且依次操作，而不会移动基板以产生扫描的效果。 采用单个可变焦距透镜将VCSEL的每个光束聚焦在不同的距离处。 扫描装置朝向诸如条形码的目标物发射可见光或不可见光，并且检测器（安装在相同或相邻的基板上）感测由目标反射的光以产生被解码以供进一步处理的数据。 VCSEL使用低电流并从相对较大的区域发射光，以便相对较少量的光被发射用于较小的发热。

公开(公告)号：US06540145B2

公开(公告)日：2003-04-01

申请号：US09921034

申请日：2001-08-02

申请人： Vladimir Gurevich ,  Mark Krichever ,  Yajun Li

发明人： Vladimir Gurevich ,  Mark Krichever ,  Yajun Li

IPC分类号： G06K710

CPC分类号： G06K7/10801 ,  G06K7/10702

摘要： An improved optical system for scanning optical codes is disclosed. A laser beam produced thereby is a diverging, nearly diffraction free beam and may be used to produce an elongated scanning spot. An aperture may be employed such that variation in size of the aperture in one orthogonal dimension varies the size of the scanning spot in another orthogonal dimension.

公开(公告)号：US07274418B2

公开(公告)日：2007-09-25

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： G02F1/1335

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。

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。

公开(公告)号：US06845915B2

公开(公告)日：2005-01-25

申请号：US10040597

申请日：2001-10-25

申请人： Mark Krichever ,  Vladimir Gurevich ,  Daniel Brown ,  Mehul Patel

发明人： Mark Krichever ,  Vladimir Gurevich ,  Daniel Brown ,  Mehul Patel

IPC分类号： B41J2/45 ,  G06F1/16 ,  G06F1/18 ,  G06F3/033 ,  G06F17/30 ,  G06K1/12 ,  G06K7/10 ,  G06K17/00 ,  H04L12/28 ,  H04L12/56 ,  H04L29/12

CPC分类号： G06K17/0022 ,  B41J2002/453 ,  G06F1/1616 ,  G06F1/1626 ,  G06F1/1632 ,  G06F1/1639 ,  G06F1/1696 ,  G06F1/181 ,  G06F3/03545 ,  G06F17/30017 ,  G06F17/30876 ,  G06F17/30879 ,  G06K1/121 ,  G06K7/10881 ,  H04L29/12009 ,  H04L29/12594 ,  H04L61/30

摘要： A focusing lens is manually moved to extend a range of working distances in which a bar code symbol can be electro-optically read. The lens movement enables reading of close-in and far-out symbols. The lens movement can also be used to change operation between a reading mode and a pointing mode in which a visual display is created on a target.

摘要翻译： 手动移动聚焦透镜以延长可以电光学读取条形码符号的工作距离范围。 透镜运动可读取近距离和远距离的符号。 透镜移动也可以用于在读取模式和在目标上创建视觉显示的指向模式之间改变操作。

公开(公告)号：US5988502A

公开(公告)日：1999-11-23

申请号：US9231

申请日：1998-01-20

申请人： Mark Krichever ,  Joseph Campanelli ,  Lisa Courtney ,  Peter Fazekas ,  Joel Kahn ,  Jerome Swartz ,  Vladimir Gurevich ,  Boris Metlitsky

发明人： Mark Krichever ,  Joseph Campanelli ,  Lisa Courtney ,  Peter Fazekas ,  Joel Kahn ,  Jerome Swartz ,  Vladimir Gurevich ,  Boris Metlitsky

IPC分类号： G06K7/10 ,  G06K7/14

CPC分类号： G06K7/10801 ,  G06K7/10594 ,  G06K7/10623 ,  G06K7/10633 ,  G06K7/10792 ,  G06K7/10881 ,  G06K7/14

摘要： A wavelength selector in an optical scanner is operative for selecting a first laser beam having a predetermined wavelength to produce a first scan pattern, and for selecting a second laser beam having a different wavelength to produce a second scan pattern. The scan patterns have a different number of scan lines. The selected scan pattern is scanned over indicia, e.g., a bar code symbol, to be read.

摘要翻译： 光学扫描器中的波长选择器用于选择具有预定波长的第一激光束以产生第一扫描图案，并且用于选择具有不同波长的第二激光束以产生第二扫描图案。 扫描图案具有不同数量的扫描线。 所选择的扫描图案被扫描在要读取的标记（例如，条形码符号）上。

公开(公告)号：US06909080B2

公开(公告)日：2005-06-21

申请号：US10321158

申请日：2002-12-17

申请人： Mehul Patel ,  David Tsi Shi ,  Mark Krichever ,  Paul Dvorkis

发明人： Mehul Patel ,  David Tsi Shi ,  Mark Krichever ,  Paul Dvorkis

IPC分类号： G02B3/00 ,  G02B27/40 ,  H01L27/00

CPC分类号： G02B3/0037 ,  G02B27/40

摘要： An imaging arrangement for, and method of, imaging a target at one of a plurality of focal planes, includes a two-dimensional sensor having an array of pixels for converting incident light into electrical signals to be processed into an image of the target, and an optical assembly including a stationary optical element transmissive to the incident light en route to the sensor. The element is fixed relative to the sensor and has a plurality of optical portions respectively arranged in a plurality of patterns relative to a plurality of groups of the pixels. The assembly is operative for focusing the respective groups of the pixels in the respective patterns at respective focal planes spaced apart from one another away from the sensor.

摘要翻译： 用于在多个焦平面之一成像目标的成像装置和方法包括：二维传感器，具有用于将入射光转换成要被处理为目标图像的电信号的像素阵列;以及 光学组件，其包括在到达传感器的途中对入射光透射的固定光学元件。 元件相对于传感器固定，并且具有相对于多个像素组分别以多个图案布置的多个光学部分。 该组件可操作用于将相应图案中的各个像素组聚焦在远离传感器彼此间隔开的相应焦平面处。