公开(公告)号：US06252351B1

公开(公告)日：2001-06-26

申请号：US09219303

申请日：1998-12-23

申请人： Genta Koizumi ,  Katsuhiko Sakai ,  Hiroshi Mabuchi ,  Mitsuru Yamazaki ,  Seiichi Kurihara ,  Yuji Abe

发明人： Genta Koizumi ,  Katsuhiko Sakai ,  Hiroshi Mabuchi ,  Mitsuru Yamazaki ,  Seiichi Kurihara ,  Yuji Abe

IPC分类号： H01J162

CPC分类号： H01L33/38 ,  B41J2/45 ,  H01L27/153 ,  H01L33/20 ,  H01L33/44

摘要： A contact layer having a low resistance in an LED is extended from an inside edge of a light take-out region in a light emitting dot to a central position thereof, whereby an input current in the light take-out region expands, while an electrode is extended from an inside edge of the light take-out region to the center of the light take-out region so as to shape like substantially a letter T with a length which is not over the center, whereby increase in an electrode covering ratio in the light take-out region can be suppressed. As a result, a uniform light output in the light take-out region can be attained, so that a light output can be remarkably improved. When electrodes in the light take-out regions in adjacent light emitting dots are staggered relative to the direction perpendicular to an aligned direction of the light take-out region (a reference straight line), the light take-out regions are arranged horizontally in substantially a straight line, so that a light emitting pattern in the aligned direction of the light take-out regions are not so staggered. Thus, an LED array having a high output and a uniform distribution of light intensity is provided.

摘要翻译： 在LED中具有低电阻的接触层从发光点的光取出区域的内边缘延伸到其中心位置，由此光取出区域中的输入电流膨胀，而电极 从光取出区域的内边缘延伸到光取出区域的中心，以便形成为长度不在中心的大致字母T，从而增加电极覆盖率 可以抑制光取出区域。 结果，可以获得在光取出区域中均匀的光输出，从而可以显着提高光输出。 当相邻发光点的光取出区域中的电极相对于与光取出区域（参考直线）的排列方向垂直的方向交错时，光取出区域基本上水平布置 直线，使得在光取出区域的排列方向上的发光图案不是错开的。 因此，提供具有高输出和均匀光强分布的LED阵列。

公开(公告)号：US06634820B2

公开(公告)日：2003-10-21

申请号：US09810255

申请日：2001-03-19

申请人： Takakazu Kobayashi ,  Yukitoshi Takano ,  Tamotsu Nishiura ,  Hiroshi Kaneyama ,  Seiichi Kurihara ,  Tetsu Takahashi ,  Shigenori Sasaki

发明人： Takakazu Kobayashi ,  Yukitoshi Takano ,  Tamotsu Nishiura ,  Hiroshi Kaneyama ,  Seiichi Kurihara ,  Tetsu Takahashi ,  Shigenori Sasaki

IPC分类号： B41J2942

CPC分类号： B41J11/009 ,  B41J13/0018

摘要： The present invention provides a printer system that performs a printing operation on recording sheets of various types. In accordance with the present invention, the image of a recording sheet on which recording sheet identification information for identifying the type of the recording sheet and data identification information for identifying the type of print data is printed in advance is picked up by an image pick-up device. From the picked up image, the recording sheet identification information and the data identification information are extracted and then compared so as to detect inconsistency between the type of the recording sheet and the type of the data. By this printing system, a data printing operation can be performed on desired recording sheets.