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公开(公告)号：US20050073652A1
公开(公告)日：2005-04-07
申请号：US10993945
申请日：2004-11-18
申请人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
发明人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
IPC分类号： G02F1/13 , G02B27/28 , G02F1/1335 , G03B21/00 , H04N9/31
CPC分类号： H04N9/3105 , G02B27/283
摘要： By making the beam polarization state in a cross prism having a dichroic function for an incident beam on a reflection type liquid crystal panel the same as that for a reflected ON beam, a small-sized, low cost projection type projector apparatus is provided. A Faraday rotator having a Faraday rotation angle of 45 degrees is disposed on an optical path between a PBS and a cross prism. A half-wave plate having such a polarization axis as to rotate a polarization angle of linearly polarized light by 45 or 135 degrees is disposed on an optical immediately before or behind the Faraday rotator.
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公开(公告)号：US06783242B1
公开(公告)日：2004-08-31
申请号：US10186885
申请日：2002-06-28
申请人： Koji Hirata , Masahiko Yatsu , Futoshi Yamasaki
发明人： Koji Hirata , Masahiko Yatsu , Futoshi Yamasaki
IPC分类号： G03B2114
CPC分类号： G02B27/1026 , G02B27/1073 , G02B27/149 , H04N9/3105
摘要： A projection apparatus includes a polarizing converter which converts a light beam from a light source to a polarized beam; a color separator which separates the polarized beam into color beams based on wavelength; first through third optical path modifiers each of which modifies an optical path associated with a corresponding one of the color beams; first through third polarized light separators, each of which receives a corresponding one of the first through third color beams from the optical path modifiers; first through third reflective image display elements, each of which receives a corresponding one of the first through third color beams from the corresponding polarized light separator and provides a reflected beam to the corresponding polarized light separator; a color combiner which combines the reflected beams from the reflective image display elements of the polarized light separator; and a projection lens which projects a color image.
摘要翻译： 投影装置包括将来自光源的光束转换为偏振光束的偏振转换器; 基于波长将偏振光束分成彩色光束的分色器; 第一至第三光路修改器，每个修改器修改与对应的一个色光束相关联的光路; 第一至第三偏振光分离器，每个偏振光分离器从光路修正器接收第一至第三色光束中相应的一个; 第一至第三反射图像显示元件，每个反射图像显示元件从相应的偏振光分离器接收第一至第三色光束中相应的一个，并将反射光束提供给相应的偏振光分离器; 组合来自偏振光分离器的反射图像显示元件的反射光束的组合器; 以及投影彩色图像的投影透镜。
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公开(公告)号：US06905213B2
公开(公告)日：2005-06-14
申请号：US10887028
申请日：2004-07-07
申请人： Koji Hirata , Masahiko Yatsu , Futoshi Yamasaki
发明人： Koji Hirata , Masahiko Yatsu , Futoshi Yamasaki
IPC分类号： G03B33/12 , G02B27/14 , G02B27/28 , G03B21/00 , H04N9/31 , G03B21/14 , G03B21/20 , G03B21/22 , H04N3/22
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 misconvergence of enlarged images displayed on a screen. The present invention provides a projection apparatus including light-detecting elements provided outside of an effective screen display area. An active region of image display elements for each color beam is controlled respectively based on results of the light-detecting elements in order to adjust display position of each color beam on the 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屏幕上显示的放大图像的会聚失真。 本发明提供一种包括设置在有效屏幕显示区域之外的光检测元件的投影设备。 基于光检测元件的结果分别控制每个颜色光束的图像显示元件的有源区域，以便调整每个彩色光束在屏幕上的显示位置。
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公开(公告)号：US06832836B2
公开(公告)日：2004-12-21
申请号：US10356000
申请日：2003-01-31
申请人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
发明人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
IPC分类号： G03B2114
CPC分类号： H04N9/3105 , G02B27/283
摘要： By making the beam polarization state in a cross prism having a dichroic function for an incident beam on a reflection type liquid crystal panel the same as that for a reflected ON beam, a small-sized, low cost projection type projector apparatus is provided. A Faraday rotator having a Faraday rotation angle of 45 degrees is disposed on an optical path between a PBS and a cross prism. A half-wave plate having such a polarization axis as to rotate a polarization angle of linearly polarized light by 45 or 135 degrees is disposed on an optical immediately before or behind the Faraday rotator.
摘要翻译： 通过使反射型液晶面板的入射光束具有二向色功能的交叉棱镜中的光束偏振状态与反射的ON光束相同，提供了小型，低成本的投影型投影仪装置。 具有法拉第旋转角度为45度的法拉第旋转器设置在PBS和交叉棱镜之间的光路上。 将具有将线性偏振光的偏振角旋转45或135度的偏振轴的半波片设置在紧邻法拉第旋转器之前或之后的光学上。
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公开(公告)号：US06945651B2
公开(公告)日：2005-09-20
申请号：US10993945
申请日：2004-11-18
申请人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
发明人： Masahiko Yatsu , Koji Hirata , Futoshi Yamasaki
CPC分类号： H04N9/3105 , G02B27/283
摘要： By making the beam polarization state in a cross prism having a dichroic function for an incident beam on a reflection type liquid crystal panel the same as that for a reflected ON beam, a small-sized, low cost projection type projector apparatus is provided. A Faraday rotator having a Faraday rotation angle of 45 degrees is disposed on an optical path between a PBS and a cross prism. A half-wave plate having such a polarization axis as to rotate a polarization angle of linearly polarized light by 45 or 135 degrees is disposed on an optical immediately before or behind the Faraday rotator.
摘要翻译： 通过使反射型液晶面板的入射光束具有二向色功能的交叉棱镜中的光束偏振状态与反射的ON光束相同，提供了小型，低成本的投影型投影仪装置。 具有法拉第旋转角度为45度的法拉第旋转器设置在PBS和交叉棱镜之间的光路上。 将具有将线性偏振光的偏振角旋转45或135度的偏振轴的半波片布置在紧邻法拉第旋转器之前或之后的光学上。
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公开(公告)号：US06987546B2
公开(公告)日：2006-01-17
申请号：US10292537
申请日：2002-11-13
IPC分类号： H04N9/31
CPC分类号： H04N9/3117 , G02B26/123 , G02B26/129 , H04N5/7441 , H04N5/7458
摘要： An image display technique which projects R, G, and B light rays on a display device to form an image with an increased utilization ratio of light and an increased screen brightness. R, G, and B light rays as a result of color separation are reflected by plural reflective surfaces on the inner side, etc. of a rotary polyhedral reflector, so that, as the reflector rotates around a central axis and its reflection plane sequentially changes from one reflective surface to a next one, the reflected light rays are projected on a display device surface in different positions and scroll in a prescribed direction.
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7.发明授权Image display apparatus forming optical image by irradiating light from light source onto image display element 有权图像显示装置，通过将来自光源的光照射到图像显示元件上来形成光学图像公开(公告)号：US07410264B2
公开(公告)日：2008-08-12
申请号：US11109875
申请日：2005-04-20
申请人： Futoshi Yamasaki , Masahiko Yatsu
发明人： Futoshi Yamasaki , Masahiko Yatsu
CPC分类号： G02B27/0911 , G02B27/0961 , G02B27/0994 , G03B21/2033 , H04N9/3152 , Y10S362/80
摘要： A technique is provided that improves the usage ratio of light in the illumination optical system of an image display apparatus, in which the cross-sectional size or shape of the flux of light that has formed a light source image of an LED-based light-emitting section is converted by anamorphic optics, such as collimator lens, into a size or shape appropriate for an aperture in the portion that permits the flux of the light source image to pass through, in an optical system leading to an image display element(s), and thus the quantity of fluxes of light passed through the aperture is increased.
摘要翻译： 提供了一种技术，其提高了图像显示装置的照明光学系统中的光的使用率，其中形成了基于LED的光源的光源图像的光束的截面尺寸或形状， 发光部分由诸如准直透镜的变形光学器件转换成适于在允许光源图像的光通量的部分中的孔径的尺寸或形状，在通向图像显示元件的光学系统中 ），因此通过孔径的光通量增加。
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8.发明申请Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same 有权液晶投影机，投影镜头单元，光学单元和冷却系统相同公开(公告)号：US20050083490A1
公开(公告)日：2005-04-21
申请号：US10972448
申请日：2004-10-26
申请人： 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
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： G03B21/16
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。
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公开(公告)号：US20050280783A1
公开(公告)日：2005-12-22
申请号：US11061663
申请日：2005-02-22
申请人： Futoshi Yamasaki , Nobuo Masuoka , Masahiko Yatsu
发明人： Futoshi Yamasaki , Nobuo Masuoka , Masahiko Yatsu
CPC分类号： H04N9/315 , G03B21/2033 , G03B37/04 , H04N5/7441 , H04N9/3105 , H04N9/3114 , H04N9/3141 , H04N9/3147 , Y10S362/80
摘要： The image display device is configured to include the light source including a plurality of semiconductor light-emitting elements, a parallelizing unit including a plurality of cell lenses arranged in a one-to-one correspondence with each of the plurality of semiconductor light-emitting elements, an image display element for forming an optical image, a pair of lens-array groups located between the parallelizing unit and the image display element, and a projection unit for enlarging and projecting the optical image formed on the image display element. Moreover, the plurality of semiconductor light-emitting elements are located at substantially focal points of the cell lenses of the parallelizing unit. Furthermore, there exist at least two types of semiconductor light-emitting elements' groups, light beams on optical axes of the semiconductor light-emitting elements belonging to the two types of semiconductor light-emitting elements' groups existing on straight lines which are different from optical axes of the lens-array groups.
摘要翻译： 图像显示装置被配置为包括包括多个半导体发光元件的光源，包括与多个半导体发光元件中的每一个一一对应配置的多个单元透镜的并行化单元 ，用于形成光学图像的图像显示元件，位于并行化单元和图像显示元件之间的一对透镜阵列组，以及用于放大和投影形成在图像显示元件上的光学图像的投影单元。 此外，多个半导体发光元件位于并行化单元的单元透镜的基本上的焦点处。 此外，存在至少两种类型的半导体发光元件组，属于存在于直线上的两种类型的半导体发光元件组的半导体发光元件的光轴上的光束，其不同于 透镜阵列组的光轴。
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公开(公告)号：US20050237488A1
公开(公告)日：2005-10-27
申请号：US11109875
申请日：2005-04-20
申请人： Futoshi Yamasaki , Masahiko Yatsu
发明人： Futoshi Yamasaki , Masahiko Yatsu
CPC分类号： G02B27/0911 , G02B27/0961 , G02B27/0994 , G03B21/2033 , H04N9/3152 , Y10S362/80
摘要： A technique is provided that improves the usage ratio of light in the illumination optical system of an image display apparatus. The cross-sectional size or shape of the flux of light that has formed a light source image of an LED-based light-emitting section is converted by anamorphic optics, such as collimator lens, into a size or shape appropriate for an aperture in the portion that permits the flux of the light source image to pass through, in an optical system leading to an image display element(s), and thus the quantity of fluxes of light passed through the aperture is increased.
摘要翻译： 提供了提高图像显示装置的照明光学系统中的光的使用率的技术。 形成基于LED的发光部的光源像的光束的截面尺寸或形状由诸如准直透镜的变形光学器件转换成适合于 允许光源图像的通量在通向图像显示元件的光学系统中通过，从而增加了通过孔径的光通量。
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