会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Image scanning device
    • 图像扫描装置
    • US5859427A
    • 1999-01-12
    • US879142
    • 1997-06-19
    • Mikio HorieMinoru Suzuki
    • Mikio HorieMinoru Suzuki
    • G02B26/10H04N1/04H04N1/113H04N1/193H01J3/14
    • H04N1/02409H04N1/113H04N1/193H04N2201/0438
    • An image scanning device is provided for reading an image of an object. The image scanning device includes: a linear image sensor outputting an image signal corresponding to a received image; an imaging lens positioned between the object and the image sensor; a scanning system rotatable through a predetermined scanning range around a predetermined axis parallel to the line of image receiving elements to scan an image of the object onto the image sensor; a focusing system for adjusting a focusing condition of the image scanning device; and a controller which, based on an image signal from the image sensor, adjusts the focusing system to set an in-focus focusing condition for a portion of the object located at a substantially central portion of the scanning range. The image scanning system may be set to the center of the scanning range and the controller, using image signals from the image sensor, may monitor the contrast of the image while adjusting the position of the imaging lens until the contrast is maximum.
    • 提供用于读取对象的图像的图像扫描装置。 图像扫描装置包括:线性图像传感器,输出与接收图像对应的图像信号; 位于物体和图像传感器之间的成像透镜; 扫描系统,其绕预定轴线旋转,围绕与图像接收元件线平行的预定轴扫描,以将物体的图像扫描到图像传感器上; 用于调整图像扫描装置的聚焦状态的聚焦系统; 以及控制器,其基于来自图像传感器的图像信号调整聚焦系统以对位于扫描范围的大致中心部分的物体的一部分设置对焦聚焦条件。 图像扫描系统可以设置为扫描范围的中心,并且使用来自图像传感器的图像信号的控制器可以在调整成像透镜的位置直到对比度最大时监视图像的对比度。
    • 9. 发明授权
    • Image scanning device
    • 图像扫描装置
    • US5856879A
    • 1999-01-05
    • US879315
    • 1997-06-19
    • Minoru SuzukiMikio Horie
    • Minoru SuzukiMikio Horie
    • G02B7/08G02B26/10H04N1/04H04N1/113H04N1/193G02B26/08
    • H04N1/113G02B26/105H04N1/02409H04N1/04H04N1/193H04N2201/0438H04N2201/046
    • An image scanning device is provided that includes an imaging lens, a linear image sensor that outputs a line image signal, a rotatable scanning mirror that deflects light towards the image sensor through the imaging lens, a scanning system for rotating the scanning mirror to scan a two-dimensional image, a focusing system that drives the imaging lens according to a position of the scanning mirror to maintain an in-focus image, and a magnification correction system which compensates for changes of magnification of the line image due to the driving of the imaging lens, such that distortion of the two-dimensional image is reduced. In particular, based on the assumption that an object is a flat surface that is perpendicular to an optical axis of the image scanning device, the magnification correction system compensates for the changes of magnification by calculating a difference between a reference magnification and a current magnification, and replaces a corresponding number of pixels from the line image signal with compensation pixels.
    • 提供一种图像扫描装置,其包括成像透镜,输出线图像信号的线性图像传感器,通过成像透镜将光朝向图像传感器偏转的可旋转扫描反射镜,用于旋转扫描反射镜以扫描 二维图像,根据扫描镜的位置驱动成像透镜以保持对焦图像的聚焦系统;以及放大校正系统,其补偿由于驱动所述对焦图像而引起的线图像的放大率的变化 成像透镜,使得二维图像的失真减小。 特别地,基于物体是与图像扫描装置的光轴垂直的平面的假设,倍率校正系统通过计算参考倍率和当前倍率之间的差来补偿放大率的变化, 并用补偿像素从行图像信号中替换相应数量的像素。