公开(公告)号：US20030206276A1

公开(公告)日：2003-11-06

申请号：US10422952

申请日：2003-04-25

申请人： Hitachi, Ltd. ,  Hitachi Video and Information System, Inc.

发明人： Nobuhiko Konuma ,  Hidetomo Yoshimura ,  Seiichi Sekiguchi ,  MIkiharu Kuwata ,  Masaharu Deguchi ,  Takashi Kakuda ,  Yutaka Matsuda ,  Takuya Shiaki ,  Futoshi Yamasaki ,  Atsushi Ishibashi ,  Koichi Umezawa ,  Takeshi Hoshino ,  Shigehisa Hagura ,  Makoto Fukatsu ,  Nobuyuki Kaku ,  Kenji Fuse ,  Satoshi Ohuchi ,  Tomohiro Miyoshi ,  Naohiro Ozawa ,  Masahiko Yatsu ,  Yasuo Otsuka ,  Takesuke Maruyama

IPC分类号： G03B021/00

CPC分类号： G03B21/16

摘要： A liquid crystal projector comprises an illuminating optical system including a light source, a color separating optical system for separating illuminating light rays emitted by the illuminating optical system into light rays of three colors, a projection lens unit comprising a projection lens, a cross dichroic prism disposed near a light receiving end of the projection lens, and a plurality of liquid crystal panels arranged around the cross dichroic prism, and a light source power supply for supplying power to the light source. The projection lens unit, the color separating optical system, the illuminating optical system and the light source power supply are arranged in that order. The liquid crystal projector has an outside size in a horizontal plane of 263 mm by 318 mm or below. The liquid crystal panels have a display screen size of 0.9 in. A cooling fan for cooling the plurality of liquid crystal panels is disposed beside the projection lens.

摘要翻译： 一种液晶投影仪，包括：照明光学系统，包括光源;分离光学系统，用于将照明光学系统发射的照射光分离为三种光线;投影透镜单元，包括投影透镜，十字分色棱镜 设置在投影透镜的光接收端附近，以及配置在十字分色棱镜周围的多个液晶面板，以及用于向光源供电的光源电源。 投影透镜单元，分色光学系统，照明光学系统和光源电源按顺序排列。 液晶投影仪的外形尺寸为263mm×318mm以下的水平面。 液晶面板的显示屏尺寸为0.9英寸。用于冷却多个液晶面板的冷却风扇设置在投影透镜旁边。

公开(公告)号：US20010008439A1

公开(公告)日：2001-07-19

申请号：US09791702

申请日：2001-02-26

申请人： Hitachi, Ltd.

发明人： Nobuhiko Konuma ,  Hidetomo Yoshimura ,  Seiichi Sekiguchi ,  Mikiharu Kuwata ,  Masaharu Deguchi ,  Takashi Kakuda ,  Yutaka Matsuda ,  Takuya Shiaki ,  Futoshi Yamasaki ,  Atsushi Ishibashi ,  Koichi Umezawa ,  Takeshi Hoshino ,  Shigehisa Hagura ,  Makoto Fukatsu ,  Nobuyuki Kaku ,  Kenji Fuse ,  Satoshi Ohuchi ,  Tomohiro Miyoshi ,  Naohiro Ozawa ,  Masahiko Yatsu ,  Yasuo Otsuka ,  Takesuke Maruyama

IPC分类号： G03B021/16

CPC分类号： G03B21/16

摘要： A liquid crystal projector comprises an illuminating optical system including a light source, a color separating optical system for separating illuminating light rays emitted by the illuminating optical system into light rays of three colors, a projection lens unit comprising a projection lens, a cross dichroic prism disposed near a light receiving end of the projection lens, and a plurality of liquid crystal panels arranged around the cross dichroic prism, and a light source power supply for supplying power to the light source. The projection lens unit, the color separating optical system, the illuminating optical system and the light source power supply are arranged in that order. The liquid crystal projector has an outside size in a horizontal plane of 263 mm by 318 mm or below. The liquid crystal panels have a display screen size of 0.9 in. A cooling fan for cooling the plurality of liquid crystal panels is disposed beside the projection lens.

摘要翻译： 一种液晶投影仪，包括：照明光学系统，包括光源;分离光学系统，用于将照明光学系统发射的照射光分离为三种光线;投影透镜单元，包括投影透镜，十字分色棱镜 设置在投影透镜的光接收端附近，以及配置在十字分色棱镜周围的多个液晶面板，以及用于向光源供电的光源电源。 投影透镜单元，分色光学系统，照明光学系统和光源电源按顺序排列。 液晶投影仪的外形尺寸为263mm×318mm以下的水平面。 液晶面板的显示屏尺寸为0.9英寸。用于冷却多个液晶面板的冷却风扇设置在投影透镜旁边。