公开(公告)号：US20090290200A1

公开(公告)日：2009-11-26

申请号：US12469038

申请日：2009-05-20

申请人： Mitsuharu YOSHIMOTO ,  Yasuhiro SUTO ,  Tomohiko OKADA ,  Noritomo NAKASHIMA ,  Kenji TANAKA ,  Shohichi FUKUTOME

发明人： Mitsuharu YOSHIMOTO ,  Yasuhiro SUTO ,  Tomohiko OKADA ,  Noritomo NAKASHIMA ,  Kenji TANAKA ,  Shohichi FUKUTOME

IPC分类号： H04N1/04

CPC分类号： H04N1/02815 ,  H04N1/02865 ,  H04N1/1013 ,  H04N1/193 ,  H04N2201/0434

摘要： The document read apparatus according to the present invention has a light source unit that includes a linear first light and second light sources, both light sources aligned parallel to the sub scanning direction (moving direction). When the light source unit is scanning a book document in a second region shifted toward a side of the first light source from a center position for emitting light to the center of the document, a light quantity of the second light source becomes larger than a light quantity of the first light source. When the light source unit is scanning the book document in a third region shifted toward a side of the second light source from the center position, the light quantity of the first light source becomes larger than the light quantity of the second light source. A sum of both light quantities is controlled to be constant.

摘要翻译： 根据本发明的文件读取装置具有光源单元，其包括线性第一光和第二光源，两个光源平行于副扫描方向（移动方向）排列。 当光源单元从用于发射光的中心位置到文档的中心的第二区域中扫描第二区域中的书本文档时，第二光源的光量变得大于光 第一光源的数量。 当光源单元从从中心位置向第二光源侧移动的第三区域扫描书本文档时，第一光源的光量变得大于第二光源的光量。 将两个光量的总和控制为恒定。

公开(公告)号：US20110102863A1

公开(公告)日：2011-05-05

申请号：US12916689

申请日：2010-11-01

申请人： Noritomo NAKASHIMA

发明人： Noritomo NAKASHIMA

IPC分类号： H04N1/04

CPC分类号： G03G15/04036 ,  H04N1/02815 ,  H04N1/02845 ,  H04N1/02865 ,  H04N1/1013 ,  H04N1/40056 ,  H04N2201/0081

摘要： In one embodiment, an image reading apparatus has a light source configured with a plurality of light-emitting elements disposed in a row in a main scanning direction that irradiate light toward an original, and a photoelectric conversion element that receives light reflected from the original, an output light amount from the light-emitting elements can be adjusted, and a state of bright spots due to repetition of light-dark in the main scanning direction on a light irradiation face of the original due to the plurality of light-emitting elements is determined, and the output light amount from the light-emitting elements is adjusted based on the determination result of the state of the bright spots.

摘要翻译： 在一个实施例中，图像读取装置具有：光源，被配置为沿着主扫描方向排列成一行的朝向原稿照射光的多个发光元件;以及光电转换元件，其接收从原稿反射的光， 可以调节来自发光元件的输出光量，并且由于由于多个发光元件而导致的原稿的光照射面上的主扫描方向上的重复亮度的亮点的状态是 并且基于亮点的状态的确定结果来调整来自发光元件的输出光量。