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：US20040218281A1

公开(公告)日：2004-11-04

申请号：US10859415

申请日：2004-06-01

申请人： Hitachi, Ltd.

发明人： Koji Hirata ,  Masahiko Yatsu ,  Naoyuki Ogura ,  Nobuo Masuoka

IPC分类号： G02B027/10 ,  G02B027/14

CPC分类号： H04N9/3105 ,  H04N9/315

摘要： In a reflection-type image projecting unit, being applicable into a reflection-type image display apparatus, being superior in contrast and achieving small-sizing of the apparatus, together with a light source for use therein, a light flux including three (3) color components, R, G and B, emitted from a light source portion 100, are modulated and synthesized by means of reflection-type liquid crystal panels. 221, 222 and 223 in an optical engine 200, which is constructed with three (3) prism-like polarization light beam splitters, to be emitted thereform, wherein those three (3) prism-like polarization light beam splitters are so displosed, that the G-component light of the three component lights R, G and B modulated on the reflection-type liquid crystal panel elements penetrates through two (2) of the prism-like polarization light beam splitters 231 and 232, to be emitted therefrom, while the others, the B-component light and the R-component light penetrate therethrough after being reflected thereupon, or they are reflected after penetrating therethrough, while taking the planes of polarization lights of the propagating lights into the consideration.

摘要翻译： 在反射型图像投影单元中，适用于反射型图像显示装置，具有优异的对比度并且实现设备的小尺寸以及其中使用的光源，包括三（3） 通过反射型液晶面板调制并合成从光源部100射出的彩色成分R，G，B。 在由三（3）个棱镜状的偏振光分束器构成的光引擎200中，这些三（3）棱镜状的偏振光分束器被分离，其中221（222）和（222）和（223） 调制在反射型液晶面板元件上的三分量光R，G和B的G分量光穿过两（2）个棱镜状偏振光分束器231和232，从而从其发射，同时 其他方面，B分量光和R分量光在被反射之后穿过其中，或者在穿透其后反射，同时考虑传播光的偏振光平面。

公开(公告)号：US20030231286A1

公开(公告)日：2003-12-18

申请号：US10328336

申请日：2002-12-23

申请人： Hitachi, Ltd.

发明人： Koji Hirata ,  Masahiko Yatsu ,  Naoyuki Ogura ,  Nobuo Masuoka

IPC分类号： G03B021/14

CPC分类号： H04N9/3105 ,  H04N9/315

摘要： In a reflection-type image projecting unit, being applicable into a reflection-type image display apparatus, being superior in contrast and achieving small-sizing of the apparatus, together with a light source for use therein, a light flux including three (3) color components, R, G and B, emitted from a light source portion 100, are modulated and synthesized by means of reflection-type liquid crystal panels 221, 222 and 223 in an optical engine 200, which is constructed with three (3) prism-like polarization light beam splitters, to be emitted therefrom, wherein those three (3) prism-like polarization light beam splitters are so disposed, that the G-component light of the three component lights R, G and B modulated on the reflection-type liquid crystal panel elements penetrates through two (2) of the prism-like polarization light beam splitters 231 and 232, to be emitted therefrom, while the others, the B-component light and the R-component light penetrate therethrough after being reflected thereupon, or they are reflected after penetrating therethrough, while taking the planes of polarization lights of the propagating lights into the consideration.

摘要翻译： 在反射型图像投影单元中，适用于反射型图像显示装置，具有优异的对比度并且实现设备的小尺寸以及其中使用的光源，包括三（3） 由光源部100发出的彩色成分R，G，B，由反射型液晶面板221,222,223在由三（3）棱镜构成的光学引擎200中进行调制和合成 这样的三（3）棱镜状的偏振光分束器被配置成使得三分子光R，G和B的G分量光被调制在反射型偏振光分束器上， 类型的液晶面板元件穿透两（2）个棱镜状偏振光分束器231和232从其中发射，而其他的B分量光和R-分量光在反射后穿透其中 或者在穿透之后反射，同时考虑传播灯的偏振光平面。

公开(公告)号：US20010033345A1

公开(公告)日：2001-10-25

申请号：US09886151

申请日：2001-06-22

申请人： Hitachi, Ltd.

发明人： Toru Numata ,  Yasuo Otsuka ,  Mikio Shiraishi ,  Koji Hirata ,  Naoyuki Ogura ,  Shigeru Inaoka ,  Kazunari Nakagawa ,  Shigeru Mori ,  Masahiko Yatsu

IPC分类号： G02F001/1335

CPC分类号： H04N9/3141 ,  G02F1/133308 ,  G02F1/133385 ,  G02F1/133528 ,  H04N5/7441 ,  H04N9/3102

摘要： For obtaining both high brightness under condition of small-sized and simplified structure and suppression of increase in temperature of liquid crystal display elements and polarizing elements, in a liquid crystal display apparatus, comprising: a liquid crystal display element 2 for converting light from a light source into display picture depending on a driving signal; an optical projection system 1b containing a first optical element 1a and for projecting said light signal toward an object of projection; exit side polarizing elements 3b; a holding member 6 for holding them with the liquid crystal display element 2; and cooling medium 5; incident side polarizing elements 3a, wherein, a space is defined by either one of the incident side polarizing elements 3a and the liquid crystal display element 2, the first optical element 1a, between the liquid crystal display element 2 and the first optical element 1a, and the holding member 6, and said space is filled up with the cooling medium 5.

摘要翻译： 为了在液晶显示装置和液晶显示装置的液晶显示装置和液晶显示装置的温度升高的条件下获得高亮度，并且抑制液晶显示元件和偏振元件的温度升高，包括：液晶显示元件2，用于将来自光的光 根据驱动信号将其输入显示图像; 包含第一光学元件1a并用于将所述光信号投射到投影物体的光学投影系统1b; 出射侧偏振元件3b; 用于将其保持在液晶显示元件2上的保持构件6; 和冷却介质5; 入射侧偏振元件3a，其中，由液晶显示元件2和第一光学元件1a之间的入射侧偏振元件3a和液晶显示元件2中的任一个，第一光学元件1a， 和保持构件6，并且所述空间被冷却介质5填充。

公开(公告)号：US20040239882A1

公开(公告)日：2004-12-02

申请号：US10887028

申请日：2004-07-07

申请人： Hitachi, Ltd.

发明人： Koji Hirata ,  Masahiko Yatsu ,  Futoshi Yamasaki

IPC分类号： G03B021/14

CPC分类号： G02B27/1026 ,  G02B27/1073 ,  G02B27/149 ,  H04N9/3105

摘要： In an illumination optical system and a color combining optical system of a projection apparatus using three image display elements, the object of the present invention is to reduce luminance variations, reduce color variations, provide high contrast, lower costs, and reduce misconvergence of enlarged images displayed on a screen.

摘要翻译： 在使用三个图像显示元件的投影装置的照明光学系统和彩色组合光学系统中，本发明的目的是减少亮度变化，减少颜色变化，提供高对比度，降低成本并减少放大图像的失会聚 显示在屏幕上。

公开(公告)号：US20010002154A1

公开(公告)日：2001-05-31

申请号：US09734164

申请日：2000-12-12

申请人： Hitachi, Ltd.

发明人： Satoshi Ohuchi ,  Masahiko Yatsu ,  Taro Imahase ,  Tomohiro Miyoshi ,  Yasuo Otsuka ,  Takesuke Maruyama

IPC分类号： G02B027/10

CPC分类号： G02B3/0056 ,  G02B3/005 ,  G02B3/0062 ,  G02B3/0075 ,  G02B27/0927 ,  G02B27/0961 ,  G02B27/283 ,  G02B27/285 ,  G03B21/208 ,  H04N9/3105 ,  H04N9/3152 ,  H04N9/3167

摘要： The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements, the structure that the diagonal size of lens cell is set to almost 0.18 inch or less, the structure that the total number of lens cells is set to almost 240 or more and the structure that the lens focal distance of lens cell is set to almost 30 mm or less.

公开(公告)号：US20030202250A1

公开(公告)日：2003-10-30

申请号：US10419186

申请日：2003-04-21

申请人： Hitachi, Ltd.

发明人： Satoshi Ohuchi ,  Masahiko Yatsu ,  Taro Imahase ,  Tomohiro Miyoshi ,  Yasuo Otsuka ,  Takesuke Maruyama

IPC分类号： G02B027/10

CPC分类号： G02B3/0056 ,  G02B3/005 ,  G02B3/0062 ,  G02B3/0075 ,  G02B27/0927 ,  G02B27/0961 ,  G02B27/283 ,  G02B27/285 ,  G03B21/208 ,  H04N9/3105 ,  H04N9/3152 ,  H04N9/3167

摘要： The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements, the structure that the diagonal size of lens cell is set to almost 0.18 inch or less, the structure that the total number of lens cells is set to almost 240 or more and the structure that the lens focal distance of lens cell is set to almost 30 mm or less.

公开(公告)号：US20030098944A1

公开(公告)日：2003-05-29

申请号：US10337400

申请日：2003-01-07

申请人： Hitachi, Ltd.

发明人： Toru Numata ,  Yasuo Otsuka ,  Mikio Shiraishi ,  Koji Hirata ,  Naoyuki Ogura ,  Shigeru Inaoka ,  Kazunari Nakagawa ,  Shigeru Mori ,  Masahiko Yatsu

IPC分类号： G02F001/1333

CPC分类号： H04N9/3141 ,  G02F1/133308 ,  G02F1/133385 ,  G02F1/133528 ,  H04N5/7441 ,  H04N9/3102

摘要： For obtaining both high brightness under condition of small-sized and simplified structure and suppression of increase in temperature of liquid crystal display elements and polarizing elements, in a liquid crystal display apparatus, comprising: a liquid crystal display element 2 for converting light from a light source into display picture depending on a driving signal; an optical projection system 1b containing a first optical element 1a and for projecting said light signal toward an object of projection; exit side polarizing elements 3b; a holding member 6 for holding them with the liquid crystal display element 2; and cooling medium 5; incident side polarizing elements 3a, wherein, a space is defined by either one of the incident side polarizing elements 3a and the liquid crystal display element 2, the first optical element 1a, between the liquid crystal display element 2 and the first optical element 1a, and the holding member 6, and said space is filled up with the cooling medium 5.

摘要翻译： 为了在液晶显示装置和液晶显示装置的液晶显示装置和液晶显示装置的温度升高的条件下获得高亮度，并且抑制液晶显示元件和偏振元件的温度升高，包括：液晶显示元件2，用于将来自光的光 根据驱动信号将其输入显示图像; 包含第一光学元件1a并用于将所述光信号投射到投影物体的光学投影系统1b; 出射侧偏振元件3b; 用于将其保持在液晶显示元件2上的保持构件6; 和冷却介质5; 入射侧偏振元件3a，其中，由液晶显示元件2和第一光学元件1a之间的入射侧偏振元件3a和液晶显示元件2中的任一个，第一光学元件1a， 和保持构件6，并且所述空间被冷却介质5填充。

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。

公开(公告)号：US20040190147A1

公开(公告)日：2004-09-30

申请号：US10822656

申请日：2004-04-13

申请人： Hitachi, Ltd.

发明人： Satoshi Ohuchi ,  Masahiko Yatsu ,  Taro Imahase ,  Tomohiro Miyoshi ,  Yasuo Otsuka ,  Takesuke Maruyama

IPC分类号： G02F001/1335 ,  G02B027/10

CPC分类号： G02B3/0056 ,  G02B3/005 ,  G02B3/0062 ,  G02B3/0075 ,  G02B27/0927 ,  G02B27/0961 ,  G02B27/283 ,  G02B27/285 ,  G03B21/208 ,  H04N9/3105 ,  H04N9/3152 ,  H04N9/3167

摘要： The present invention discloses the structure of the array lens that at least any one of the diagonal size, vertical size and lateral size of lens cell is set to almost 1/(4.5 or more) for each corresponding size of the display elements, the structure that the diagonal size of lens cell is set to almost 0.18 inch or less, the structure that the total number of lens cells is set to almost 240 or more and the structure that the lens focal distance of lens cell is set to almost 30 mm or less.

摘要翻译： 本发明公开了对于显示元件的每个对应尺寸，将透镜单元的对角线尺寸，垂直尺寸和横向尺寸中的至少任一个设置为几乎1 /（4.5或更大）的阵列透镜的结构， 透镜单元的对角线尺寸设定为几乎0.18英寸或更小，将透镜单元的总数设置为近240或更大的结构以及透镜单元的透镜焦距被设置为近30mm的结构或 减。