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公开(公告)号：EP2068548A3
公开(公告)日：2011-06-15
申请号：EP08169331.9
申请日：2008-11-18
IPC分类号： H04N1/024
CPC分类号： H04N1/0318 , H04N1/02815 , H04N1/02835 , H04N1/1017 , H04N1/193 , H04N2201/03112 , H04N2201/03129 , H04N2201/03137 , H04N2201/03145
摘要： An image sensing apparatus having a large depth of focus (DOF) and being compact in size is provided. The image sensing apparatus includes a plurality of light sources that shines light beams on an illumination portion of a document; a first mirror that receives incident light scattered by reflection from the document, to reflect the scattered light in the secondary scan direction; a plurality of first concaved aspheric mirrors that collimates light beams from the first mirror, to reflect therefrom the collimated light beams as substantially collimated light fluxes; an aperture mirror that reflects therefrom the light beams from the respective first aspheric mirrors, through apertures each having a light-shielded portion formed therearound and selectively passing the light beams therethrough; a plurality of second concaved aspheric mirrors that receives the light beams incident from the respective aperture mirror, to reflect the incident light beams as converging light beams; a second mirror that reflects the light beams in a direction perpendicular to the surface of the document, disposed on a path of the light beams to be converged by means of the second aspheric mirrors; a plurality of light receivers each having a light-receiving area that receives the light beams from the second mirrors, to form images according to the light beams from the respective apertures; and a casing where the first and second aspheric mirrors are disposed on a first side of the casing in the secondary scan direction, and the aperture mirror is disposed on a second side thereof in the secondary scan direction.
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公开(公告)号：EP2068548A2
公开(公告)日：2009-06-10
申请号：EP08169331.9
申请日：2008-11-18
IPC分类号： H04N1/024
CPC分类号： H04N1/0318 , H04N1/02815 , H04N1/02835 , H04N1/1017 , H04N1/193 , H04N2201/03112 , H04N2201/03129 , H04N2201/03137 , H04N2201/03145
摘要： An image sensing apparatus having a large depth of focus (DOF) and being compact in size is provided. The image sensing apparatus includes a plurality of light sources that shines light beams on an illumination portion of a document; a first mirror that receives incident light scattered by reflection from the document, to reflect the scattered light in the secondary scan direction; a plurality of first concaved aspheric mirrors that collimates light beams from the first mirror, to reflect therefrom the collimated light beams as substantially collimated light fluxes; an aperture mirror that reflects therefrom the light beams from the respective first aspheric mirrors, through apertures each having a light-shielded portion formed therearound and selectively passing the light beams therethrough; a plurality of second concaved aspheric mirrors that receives the light beams incident from the respective aperture mirror, to reflect the incident light beams as converging light beams; a second mirror that reflects the light beams in a direction perpendicular to the surface of the document, disposed on a path of the light beams to be converged by means of the second aspheric mirrors; a plurality of light receivers each having a light-receiving area that receives the light beams from the second mirrors, to form images according to the light beams from the respective apertures; and a casing where the first and second aspheric mirrors are disposed on a first side of the casing in the secondary scan direction, and the aperture mirror is disposed on a second side thereof in the secondary scan direction.
摘要翻译： 提供了具有大焦深（DOF）并且尺寸紧凑的图像传感设备。 该图像传感设备包括：将光束照射在文件的照明部分上的多个光源; 第一反射镜，其接收通过从文件反射而散射的入射光，以沿副扫描方向反射散射光; 多个第一凹面非球面镜，用于准直来自第一反射镜的光束，从而将准直光束反射为基本上平行的光束; 一个光圈镜，它由此反射来自各个第一非球面镜的光束，通过每个孔具有在其周围形成的光屏蔽部分并有选择地使光束通过的孔; 多个第二凹面非球面镜，其接收从各个孔径镜入射的光束，以将入射光束反射为会聚光束; 第二反射镜，其在垂直于文件表面的方向上反射光束，所述第二反射镜设置在待由第二非球面反射镜会聚的光束的路径上; 多个光接收器，每个光接收器具有接收来自第二反射镜的光束的光接收区域，以根据来自各个孔径的光束形成图像; 以及壳体，其中第一和第二非球面镜在副扫描方向上设置在壳体的第一侧上，并且孔镜设置在副扫描方向上的第二侧上。
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公开(公告)号：EP2068548B1
公开(公告)日：2012-06-27
申请号：EP08169331.9
申请日：2008-11-18
IPC分类号： H04N1/024
CPC分类号： H04N1/0318 , H04N1/02815 , H04N1/02835 , H04N1/1017 , H04N1/193 , H04N2201/03112 , H04N2201/03129 , H04N2201/03137 , H04N2201/03145
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