公开(公告)号：EP1038684A1

公开(公告)日：2000-09-27

申请号：EP00302399.1

申请日：2000-03-23

申请人： Futaba Denshi Kogyo Kabushiki Kaisha

发明人： Shimizu, Yukihiko ,  Nakahara, Tosiaki

IPC分类号： B41J2/447 ,  B41J2/525 ,  G02B26/10

CPC分类号： B41J2/525 ,  B41J2/4476 ,  B41J2/451

摘要： An optical printer head including a plurality of light sources (1,2) which is capable of providing a distinct image free of colour shade and colour fading. ion-like lights different in luminous colour emitted from a plurality of fluorescent luminous tubes (1,2) acting as the light sources are guided to a common equi-magnification image formation element (12) using a dichroic optical element (10), so that they are superposed on each other on a record medium (7) while being kept aligned with each other, resulting in an image being formed on the record medium (7). The optical members (1,2) are so arranged that optical path lengths of the dot-like lights different in luminous colour may be rendered substantially equal to each other.

摘要翻译： 一种包括多个光源（1,2）的光学打印机头，其能够提供没有颜色阴影和褪色的不同图像。 从作为光源的多个荧光发光管（1,2）发射的发光颜色不同的类离子光通过二向色性光学元件（10）被引导到共同的等倍图像形成元件（12），如此 它们彼此重叠在记录介质（7）上，同时保持彼此对齐，导致在记录介质（7）上形成图像。 光学构件（1,2）被布置为使得发光颜色不同的点状光的光路长度可以变得基本彼此相等。