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    • 22. 发明授权
    • Scanner unit and carriage therefor
    • 扫描仪单元和支架
    • US06879414B2
    • 2005-04-12
    • US09773531
    • 2001-02-02
    • Koichi Ando
    • Koichi Ando
    • G03G15/04H04N1/028H04N1/10H04N1/193H04N1/04
    • H04N1/0287G03G15/04072H04N1/02815H04N1/1013H04N1/1026H04N1/1056H04N1/193H04N2201/02495H04N2201/0446
    • A scanner unit has first and second carriages under an original table glass. The first carriage has a first frame extending from a front side to a rear side along the original table, that is, in a main scan direction. Two rails for supporting both end portions of the first frame such that the first frame may slide in a sub-scan direction are provided on the front side and rear side of the scanner unit. A cold cathode fluorescent lamp is mounted on the first frame. In order to make a high-voltage-side harness of the cold cathode fluorescent lamp as short as possible, an inverter circuit board, which is a lighting circuit, is disposed as close as possible to a positive electrode of the cold cathode fluorescent lamp. A weight is attached on a side opposite to the inverter circuit board, thereby to stabilize a weight balance of the first frame in the main scan direction.
    • 扫描器单元具有在原始桌面玻璃下方的第一和第二托架。 第一滑架具有沿着原始工作台,即在主扫描方向上从正面向后侧延伸的第一框架。 在扫描器单元的前侧和后侧设置有用于支撑第一框架的两个端部以使得第一框架可沿副扫描方向滑动的两个轨道。 冷阴极荧光灯安装在第一框架上。 为了使冷阴极荧光灯的高压侧线束尽可能短,作为点亮电路的逆变器电路基板尽可能靠近冷阴极荧光灯的正极配置。 在与逆变器电路板相对的一侧安装有重物,从而稳定第一框架在主扫描方向上的重量平衡。
    • 23. 发明授权
    • Optical reader
    • 光学读卡器
    • US06845911B2
    • 2005-01-25
    • US10289179
    • 2002-11-07
    • Koichi Ando
    • Koichi Ando
    • H04N1/028H04N1/10H04N1/193G06K7/10
    • H04N1/0285H04N1/02815H04N1/0287H04N1/1013H04N1/193
    • A scanner unit is provided, which can make the amounts of light directed to a read line from the opposite sides of the optic axis plane substantially the same, thereby preventing a shade due to an edge of an attachment portion on a document form occurring.In the scanner unit of the present invention, the carriage mirror 23 and the second carriage 12 of the optical reading device read a document by scanning read lines LL on the document in the scanning direction (R, F) and using light reflected from the document along an optic axis plane PP which contains the read line and extends in perpendicular relation to a document glass table. An exposure lamp 21 and a reflector 22 forming an illumination device illuminate the read line from both sides of the optic axis plane with the light passing along light path L10, L11 and the light passing along light path L20, L21, respectively. An light amount adjusting member, e.g., a filter 25, reduces the amount of light passing along the light path L10, L11 so that the amounts of illumination light directed from both sides of the optic axis plane are made substantially the same at the read line, thereby preventing a shade when reading an edge of an attachment portion on the document.
    • 提供了一种扫描器单元,其可以使得从光轴平面的相对侧引导到读取线的光量基本相同,从而防止由于文档形式上的附接部分的边缘而发生的阴影。 本发明的扫描器单元,光学读取装置的托架反射镜23和第二托架12通过沿扫描方向(R,F)扫描原稿上的读取线LL并使用从文档反射的光来读取文档 光轴平面PP,其包含读取线并且垂直于文件玻璃台延伸。 形成照明装置的曝光灯21和反射器22分别沿着光路L10,L11和沿着光路L20,L21通过的光沿光轴平面的两侧照亮读取线。 光量调节构件(例如滤光器25)减少沿着光路L10,L11通过的光量,使得从光轴平面的两侧引导的照明光的量在读取线上基本相同 从而当读取文件上的附接部分的边缘时防止阴影。