Offset optical axes for bar code scanner
    11.
    发明授权
    Offset optical axes for bar code scanner 失效
    偏移光轴用于条码扫描器

    公开(公告)号:US6166375A

    公开(公告)日:2000-12-26

    申请号:US942399

    申请日:1997-10-01

    IPC分类号: G06K7/10 H01J3/14

    CPC分类号: G06K7/10683 G06K7/10702

    摘要: A scan module and an optical system such as for a bar code scanner wherein the optical system has an axis of outgoing (illumination) light offset from the axis of collected light, arranged to limit the dynamic range of the collected light and thus the dynamic range within which the bar code scanner detector and signal processor must function. Preferably, the outgoing axis and the collection lens axis are substantially parallel.

    摘要翻译: 一种扫描模块和诸如用于条形码扫描器的光学系统,其中光学系统具有偏离收集的光轴的出射(照明)光轴,其被布置成限制所收集的光的动态范围,并且因此限制动态范围 条形码扫描仪检测器和信号处理器必须在其中工作。 优选地,输出轴和收集透镜轴线基本上平行。

    Method and apparatus for reading images without need for self-generated
illumination source
    12.
    发明授权
    Method and apparatus for reading images without need for self-generated illumination source 有权
    用于读取图像的方法和装置,不需要自发光源

    公开(公告)号:US06042012A

    公开(公告)日:2000-03-28

    申请号:US162350

    申请日:1998-09-28

    IPC分类号: G06K7/00 G06K7/10

    摘要: A method and apparatus for reading bar codes or other images while reducing or eliminating the need for self-generated illumination. An image reader is preferably embodied as a handheld unit and comprises an efficient optical collection system including an aperture with a high aspect ratio and/or a multi-focal lens or lenses. An optically transmissive spacer affixed to the front of the handheld unit allows ambient light to be collected at close range, and a diffuser may be used to reflect ambient light from the handheld unit to provide additional illumination at close range. A masked CCD detector with rectangular pixels receives collected light and is coupled to an adaptive exposure circuit for preventing saturation of the CCD detector at high illumination levels. A correlated double sampling circuit coupled to the adaptive exposure circuit rejects common mode noise and allows operation in lower light levels. The correlated double sampling circuit is connected to a signal processor which uses a derivative based technique for detecting edges of the image. A decoder uses the edge detection information to decode encoded information from the image.

    摘要翻译: 一种在减少或消除对自发光的需要的同时读取条形码或其他图像的方法和装置。 图像读取器优选地被实现为手持单元,并且包括具有高纵横比的孔和/或多焦点透镜或透镜的有效的光学收集系统。 固定在手持单元前部的光学透射间隔件允许在近距离范围内收集环境光,并且漫射器可用于反射来自手持单元的环境光,以在近距离范围内提供额外的照明。 具有矩形像素的屏蔽CCD检测器接收收集的光并且耦合到自适应曝光电路,以防止CCD检测器在高照明水平下的饱和。 耦合到自适应曝光电路的相关双采样电路拒绝共模噪声并且允许在较低的光级别下操作。 相关双采样电路连接到使用基于导数的技术来检测图像边缘的信号处理器。 解码器使用边缘检测信息来解码来自图像的编码信息。

    Multiple plane scanning system for data reading applications
    13.
    发明授权
    Multiple plane scanning system for data reading applications 失效
    用于数据读取应用的多平面扫描系统

    公开(公告)号:US5837988A

    公开(公告)日:1998-11-17

    申请号:US806194

    申请日:1997-02-26

    IPC分类号: G06K7/10

    摘要: An optical system and method for data reading. The preferred system is directed to a scanner which includes a multiple beam source, such as a laser diode and a beam splitter which generates first optical beam and a second optical beam, the first optical beam being directed toward one side of a scanning optical element such as a rotating polygon mirror and to a first mirror array, the second optical beam is being simultaneously directed toward a second optical element such as another side of the rotating polygon mirror and then to a second and a third mirror array. The first mirror array is configured to generate a scan pattern through a vertical window and the second and third arrays are configured to generate scan patterns passing through a horizontal window. In combination, the three mirror arrays generate three sets of scan lines so as to scan the bottom and all lateral sides of an object being passed through the scan volume.

    摘要翻译: 一种用于数据读取的光学系统和方法。 优选的系统涉及一种扫描器,其包括多束光源,例如激光二极管和分束器,其产生第一光束和第二光束,第一光束被引向扫描光学元件的一侧,例如 作为旋转多面镜和第一反射镜阵列,第二光束同时被引导到诸如旋转多面镜的另一侧的第二光学元件,然后到第二和第三反射镜阵列。 第一反射镜阵列被配置为通过垂直窗口生成扫描图案,并且第二和第三阵列被配置为生成穿过水平窗口的扫描图案。 组合在一起,三个反射镜阵列产生三组扫描线,以扫描正在通过扫描体积的物体的底部和所有侧面。

    Dual function ultrasonic transducer probes
    15.
    发明授权
    Dual function ultrasonic transducer probes 失效
    双功能超声换能器探头

    公开(公告)号:US4802458A

    公开(公告)日:1989-02-07

    申请号:US588021

    申请日:1984-03-09

    IPC分类号: A61B8/00 G10K11/35 A61B10/00

    摘要: An ultrasonic transducer probe is provided which exhibits an angular design, having a body section containing a drive motor and a transducer section. The axes of the two sections are oriented obliquely with respect to each other such that the motor section may be grasped in the manner of a writing instrument while the transducer section is pressed against a patient. In a preferred embodiment, the two sections are coupled together by a flexible bellows and two crystals are mounted on a shaft in the transducer section, one for sector scan imaging and the other for Doppler flow measurement.

    摘要翻译: 提供了一种具有角度设计的超声换能器探头,其具有包含驱动马达和换能器部分的主体部分。 两部分的轴线相对于彼此倾斜地定向,使得电动机部分可以以书写工具的方式被抓握,同时换能器部分被压靠在患者身上。 在优选实施例中,两个部分通过柔性波纹管连接在一起,并且两个晶体安装在换能器部分中的轴上,一个用于扇区扫描成像,另一个用于多普勒测量。

    Prism assembly for separating light
    17.
    发明授权
    Prism assembly for separating light 失效
    用于分离光的棱镜组件

    公开(公告)号:US07300156B2

    公开(公告)日:2007-11-27

    申请号:US11064165

    申请日:2005-02-23

    摘要: A prism assembly is provided. The prism assembly comprises a first prism component having a triangular cross-section along an optical path, a second prism component having a first quadrilateral cross-section along the optical path, a third prism component having a second quadrilateral cross-section along the optical path, a first dichroic interface between the first and second prism components and along the third prism component and configured to reflect a first range of wavelengths of the light, and a second dichroic interface between the first and third prism components and along the second prism component and configured to reflect a second range of wavelengths of the light.

    摘要翻译: 提供棱镜组件。 棱镜组件包括沿着光路具有三角形横截面的第一棱镜部件,沿光路具有第一四边形横截面的第二棱镜部件,具有沿光路的第二四边形横截面的第三棱镜部件 在第一和第二棱镜部件之间并且沿着第三棱镜部件的第一分色界面,并且被配置为反射光的第一波长范围,以及第一和第三棱镜部件之间的第二分色界面以及沿着第二棱镜部件,以及 被配置为反射光的第二波长范围。

    Filter for an ink jet pen
    18.
    发明授权
    Filter for an ink jet pen 有权
    过滤墨水笔

    公开(公告)号:US06974211B2

    公开(公告)日:2005-12-13

    申请号:US10617952

    申请日:2003-07-10

    IPC分类号: B41J2/175

    CPC分类号: B41J2/17563

    摘要: An inkjet pen is disclosed having an interior chamber containing a pressure regulator. A filter within the interior chamber substantially surrounds the pressure regulator, providing a large filter surface area, and hence a low resistance to ink flow. The filter may be formed of a pleated filter material; the filter material may be retained by a rigid ink passage flange and a filter cap.

    摘要翻译: 公开了一种具有包含压力调节器的内部室的喷墨笔。 内部室内的过滤器基本上围绕压力调节器,提供大的过滤器表面积,因此对油墨流动的抵抗力低。 过滤器可以由打褶的过滤材料形成; 过滤材料可以由刚性油墨通道凸缘和过滤器盖保持。

    Off-axis object detection system for a bar code scanner
    19.
    发明授权
    Off-axis object detection system for a bar code scanner 有权
    用于条码扫描器的离轴物体检测系统

    公开(公告)号:US06884993B2

    公开(公告)日:2005-04-26

    申请号:US10640106

    申请日:2003-08-12

    IPC分类号: G06K7/10 H01J3/14

    CPC分类号: G06K7/10683 G06K7/10702

    摘要: A scan module and an optical system such as for a bar code scanner wherein the optical system has an axis of outgoing (illumination) light offset from the axis of collected light, arranged to limit the dynamic range of the collected light and thus the dynamic range within which the bar code scanner detector and signal processor must function. Preferably, the outgoing axis and the collection lens axis are substantially parallel.

    摘要翻译: 一种扫描模块和诸如用于条形码扫描器的光学系统,其中光学系统具有偏离收集的光轴的出射(照明)光轴,其被布置成限制所收集的光的动态范围,并且因此限制动态范围 条形码扫描仪检测器和信号处理器必须在其中工作。 优选地,输出轴和收集透镜轴线基本上平行。

    Filter for an ink jet pen
    20.
    发明授权
    Filter for an ink jet pen 有权
    过滤墨水笔

    公开(公告)号:US06644797B2

    公开(公告)日:2003-11-11

    申请号:US10051892

    申请日:2002-01-18

    IPC分类号: B41J2175

    CPC分类号: B41J2/17563

    摘要: An inkjet pen is disclosed having an interior chamber containing a pressure regulator. A filter within the interior chamber substantially surrounds the pressure regulator, providing a large filter surface area, and hence a low resistance to ink flow. The filter may be formed of a pleated filter material; the filter material may be retained by a rigid ink passage flange and a filter cap.

    摘要翻译: 公开了一种具有包含压力调节器的内部室的喷墨笔。 内部室内的过滤器基本上围绕压力调节器,提供大的过滤器表面积,因此对油墨流动的抵抗力低。 过滤器可以由打褶的过滤材料形成; 过滤材料可以由刚性油墨通道凸缘和过滤器盖保持。