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    • 7. 发明公开
    • Image sensor
    • Bildlaser。
    • EP0520430A2
    • 1992-12-30
    • EP92110681.1
    • 1992-06-25
    • ROHM CO., LTD.
    • Imamura, Masaya, c/o Rohm Co., Ltd.Ogata, Hiromi, c/o Rohm Co., Ltd.Koshikawa, Seiji, c/o Rohm Co., Ltd.Sawase, Kensuke, c/o Rohm Co., Ltd.
    • H04N1/028
    • G06K7/10861H04N1/0312H04N1/0314H04N1/0318H04N1/1934H04N2201/02404H04N2201/02487H04N2201/03112H04N2201/03129H04N2201/03141H04N2201/03145H04N2201/03154H04N2201/0317H04N2201/03179
    • An image sensor has a frame, a transparent cover which is mounted on the top of the frame and on which an original document is to be placed, and a base plate disposed within the frame. On the base plate, there are mounted a light emitting section, a lens for condensing the reflective light and a light receiving section.
      The base plate is disposed within the frame so that the light emitting section is located directly below the transparent cover and the optical axis of the condensing lens is inclined relative to the plane of the transparent cover. Light rays emitted from the light emitting section enter the transparent cover in a direction substantially perpendicular to the plane thereof and are reflected by the transparent cover slantingly toward the light receiving section. By arranging the condensing lens inclined relative to the plane of the transparent cover, the vertical distance between the light receiving section and the transparent cover can be reduced. The entire configuration of the frame is tapered toward the transparent cover on the top thereof. Thus, the image sensor can be more easily assembled into any electronic instrument. The light emitting section is enclosed by walls which are increased in reflectivity, resulting in an increase of the amount of irradiating light. The condensing lens can be mounted and held in a recess formed in the top of the frame without the need for any adhesive.
    • 图像传感器具有框架,透明盖,其安装在框架的顶部上并且原稿将放置在其上;以及基板,其设置在框架内。 在基板上安装有发光部,用于聚光反射光的透镜和光接收部。 基板设置在框架内,使得发光部分位于透明盖的正下方,聚光透镜的光轴相对于透明盖的平面倾斜。 从发光部射出的光线在与其平面大致垂直的方向上进入透明盖,并被透明盖向着光接收部倾斜地反射。 通过配置相对于透明盖的平面倾斜的聚光透镜,可以减少光接收部和透明盖之间的垂直距离。 框架的整体结构朝向顶部的透明盖逐渐变细。 因此,图像传感器可以更容易地组装成任何电子仪器。 发光部分由反射率增加的壁包围,导致照射光量的增加。 聚光透镜可以安装并保持在形成在框架顶部的凹部中,而不需要任何粘合剂。