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1. 发明授权

US4742371A Optical system for color copier 失效
标题翻译：彩色复印机光学系统
公开(公告)号：US4742371A
公开(公告)日：1988-05-03
申请号：US44742
申请日：1987-05-01
申请人： Hideya Furuta , Yutaka Koizumi , Kazusige Taguchi , Yoshihiro Sakai
发明人： Hideya Furuta , Yutaka Koizumi , Kazusige Taguchi , Yoshihiro Sakai
IPC分类号： G03G15/01
CPC分类号： G03G15/011 , G03G15/0184 , G03G15/0435 , G03G2215/0106 , G03G2215/0119 , G03G2215/0417
摘要： An optical system for a color copier in which light images of blue, green and red produced by color separation are formed one on each of three photoconductive elements, then developed by toner of associated colors, and then transferred one upon another onto a paper. A first mirror is disposed in an optical path to which light representative of an image of an original document is led through an image-forming lens and a mirror group. Light reflected by the first mirror is focused onto a first photoconductive element. Light transmitted through the first mirror is split by a second mirror which is located in a position for intercepting a part of the width of a slit for exposure. Light reflected by the second mirror is focused onto a second photoconductive element. Further, light outside the range of the second mirror is reflected by a third mirror to be focused onto a third photoconductive element. The first mirror has a spectral characteristic which reflects light of one of three colors, i.e., blue, green and red while transmitting light of the other two colors. All of the first to third mirrors comprise total reflection mirrors, or only the first mirror comprises a half-mirror. A reflection from the first mirror is of a particular color to which the photoconductive elements show the smallest amount of reaction. Light of wavelengths outside a predetermined range of each color which is to be reflected by any of the mirrors is cut by using the reflection characteristic of the mirror (as well as a transmission characteristic in the case of the half-mirror) and the transmission characteristics of a filter which is associated with the mirror.
摘要翻译：一种用于彩色复印机的光学系统，其中通过颜色分离产生的蓝色，绿色和红色的光图像在三个光电导元件中的每一个上形成一个，然后通过相关联的颜色的调色剂显影，然后一个接一个地转印到纸上。第一反射镜设置在通过成像透镜和反射镜组引导代表原稿的图像的光的光路中。由第一反射镜反射的光聚焦到第一光导元件上。透过第一反射镜的光被第二反射镜分开，第二反射镜位于用于遮挡用于曝光的狭缝宽度的一部分的位置。由第二反射镜反射的光聚焦到第二光导元件上。此外，第二反射镜的范围之外的光被第三反射镜反射以聚焦到第三光导元件上。第一反射镜具有反映三种颜色之一的光的光谱特性，即蓝色，绿色和红色，同时透射另外两种颜色的光。所有第一至第三反射镜均包括全反射镜，或仅第一镜包括半反射镜。来自第一反射镜的反射具有特定的颜色，光电导元件显示最小量的反应。通过使用反射镜的反射特性（以及在半反射镜的情况下的透射特性）和透射特性来切割要由任何反射镜反射的每种颜色的预定范围之外的波长的光与镜子相关联的过滤器。

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