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    • 5. 发明申请
    • IMAGE PICKUP APPARATUS
    • 图像拾取装置
    • US20130038757A1
    • 2013-02-14
    • US13551368
    • 2012-07-17
    • Kazuhiro HanedaMakoto IkedaYoshinao Shimada
    • Kazuhiro HanedaMakoto IkedaYoshinao Shimada
    • H04N5/76
    • H04N5/23212H04N5/3454
    • The invention provides an image pickup apparatus including: an image pickup device including a memory portion for analog storage and a pixel portion; a first read-out control and processing portions that, in a first frame-period, read out a first-image-signal from a first-pixel-region of the pixel portion, and in a second frame-period longer than the first frame-period, read out a second-image-signal from a second-pixel-region of the pixel portion including the first-pixel-region, and store the read-out signals in the memory portion; a second read-out control and processing portions that read out from a memory portion an AF image signal related to the first-image-signal and a display image signal related to the second-image-signal; a focal point detecting portion that carries out contrast focal point detection based on the AF image signal; and an image display portion that displays an image based on the display image signal.
    • 本发明提供了一种图像拾取装置,包括:图像拾取装置,包括用于模拟存储的存储部分和像素部分; 第一读出控制和处理部分,其在第一帧周期中从像素部分的第一像素区域读出第一图像信号,并且在比第一帧长的第二帧周期中 从包含第一像素区域的像素部分的第二像素区域读出第二图像信号,并将读出的信号存储在存储器部分中; 第二读出控制和处理部分,从存储器部分读出与第一图像信号相关的AF图像信号和与第二图像信号有关的显示图像信号; 焦点检测部,其基于所述AF图像信号进行对比度焦点检测; 以及基于显示图像信号显示图像的图像显示部。
    • 8. 发明授权
    • Light guide and line illuminator
    • 光导和图像阅读器
    • US07529445B2
    • 2009-05-05
    • US10562336
    • 2004-06-18
    • Makoto IkedaHiroyuki Nemoto
    • Makoto IkedaHiroyuki Nemoto
    • G02B6/26F21V7/04
    • H04N1/0318H04N2201/03112H04N2201/03125H04N2201/03141H04N2201/03145H04N2201/0317H04N2201/03195
    • A light guide emits lights incident on an end face from an emitting face extending longitudinally of the guide, while having the lights reflected by its internal face. A sectional shape of the guide in a direction orthogonal to the longitudinal direction of this light guide has two opposite parabolas, a line segment connecting the focal points of the two opposite parabolas, and a line segment (bottom face) corresponding to the emitting face. A scattering pattern consisting of white ink is formed on the line segment (bottom face) connecting the focal points. With this guide, the face of a document is to be efficiently illuminated by conversely utilizing the characteristic of the compound parabolic concentrator (CPC) to convert scattered lights extending over a full angle from a limited area into radiant lights confined to a prescribed emission angle and thereby minimizing the expansion of lights.
    • 光导从发射面沿着引导件的纵向发射入射在端面上的光,同时具有由其内表面反射的光。 引导件在与该导光体的纵向正交的方向上的截面形状具有两个相反的抛物线,连接两个相对的抛物线的焦点的线段和与发射面对应的线段(底面)。 在连接焦点的线段(底面)上形成由白色墨水组成的散射图案。 利用该指南,通过相反地利用复合抛物面聚光器(CPC)的特性将文件的面部有效地照射,将从限定区域延伸的全角度的散射光转换为限制为规定的发射角的辐射光,以及 从而最小化灯的扩展。