公开(公告)号：US20080284921A1

公开(公告)日：2008-11-20

申请号：US12153221

申请日：2008-05-15

申请人： Koji Hirata ,  Masahiko Yatsu ,  Hidehiro Ikeda

发明人： Koji Hirata ,  Masahiko Yatsu ,  Hidehiro Ikeda

IPC分类号： H04N5/74

CPC分类号： G02B27/2278 ,  G02F1/133602 ,  G02F1/1347 ,  G02F2001/133601 ,  H04N13/395

摘要： An image displaying apparatus, comprising: a first light modulator unit, which is configured to modulate a light incident thereon, responding to a first video signal, thereby to form a first image; one or a plural number of second light modulator units, which is/are configured to modulate a light from a light source, responding to a second video signal; and an enlarged image forming unit, being disposed on a light incidence side of the first light modulator unit, upon which a light modulated within the second light modulator unit is projected, enlargedly, thereby to form a second image thereon, wherein upon the first light modulator unit is incident the light of the second image formed on the enlarged image forming unit, and the first image is formed through modulation of the light of the second image responding to the first video signal.

摘要翻译： 一种图像显示装置，包括：第一光调制器单元，被配置为响应于第一视频信号调制入射到其上的光，从而形成第一图像; 一个或多个第二光调制器单元，其被配置为响应于第二视频信号来调制来自光源的光; 以及放大图像形成单元，设置在第一光调制器单元的光入射侧，放大地在第二光调制器单元内调制的光投射，从而在其上形成第二图像，其中在第一光 调制器单元入射到形成在放大图像形成单元上的第二图像的光，并且通过根据第一视频信号调制第二图像的光来形成第一图像。

公开(公告)号：US20070291236A1

公开(公告)日：2007-12-20

申请号：US11763465

申请日：2007-06-15

申请人： Koji Hirata ,  Takanori Hisada ,  Masahiko Yatsu

发明人： Koji Hirata ,  Takanori Hisada ,  Masahiko Yatsu

IPC分类号： G03B21/28

CPC分类号： G03B21/28 ,  G02B17/0852 ,  G03B21/145 ,  H04N9/317

摘要： A projection-type image display apparatus for projecting an image, enlargedly, onto a projection surface, comprises: an image display element; a lens group, being disposed behind the image display element, comprising therein, a front lens group made up with a plural number of lenses, including, at least, a refractive lens, having a positive power and being rotationally symmetric in a surface configuration thereof, and a rear lens group made up with a plural number of lenses, including, at least, a lens having a free curved surface configuration and being rotationally asymmetric, thereby emitting the image displayed on the image display element; a reflection mirror for reflecting the light from the lens group, thereby projection onto the projection surface, obliquely; a first mounting base, on which the rear lens group is mounted; and a rod member, which is provided on the mounting base for moving the mounting base.

摘要翻译： 一种用于将图像放大地投影到投影表面上的投影型图像显示装置，包括：图像显示元件; 设置在图像显示元件后面的透镜组，其中包括由多个透镜构成的前透镜组，至少包括具有正光焦度并在其表面形状中旋转对称的折射透镜 以及由多个透镜构成的后透镜组，至少包括具有自由曲面构造并且旋转非对称的透镜，从而发射显示在图像显示元件上的图像; 用于反射来自透镜组的光的反射镜，从而倾斜地突出到投影表面上; 第一安装基座，其上安装后透镜组; 以及杆构件，其设置在安装基座上用于移动安装基座。

公开(公告)号：US07198390B2

公开(公告)日：2007-04-03

申请号：US10920351

申请日：2004-08-18

申请人： Motoyuki Miyata ,  Masahiko Yatsu ,  Hiroyuki Akata ,  Masaharu Deguchi ,  Katsuyuki Watanabe ,  Takashi Naitou ,  Koji Hirata

发明人： Motoyuki Miyata ,  Masahiko Yatsu ,  Hiroyuki Akata ,  Masaharu Deguchi ,  Katsuyuki Watanabe ,  Takashi Naitou ,  Koji Hirata

IPC分类号： F21V5/00 ,  F21V7/22

CPC分类号： C03C3/095 ,  F21S41/37 ,  F21V7/22 ,  H04N5/74

摘要： It is an object of the present invention to provide a reflector made of heat-resistant glass. It is another object of the present invention to provide a projective display which uses the reflector.A projector device having: a light source emitting white light; a reflector reflecting a light emitted from the light source; a light valve modulating illumination beam of light; and a projective lens projecting image light from the light valve, wherein the reflector is made of a glass containing SiO2 as a major ingredient and at least one rare-earth element selected from the group consisting of Sc, Y, La, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and the glass has a thermal expansion coefficient lower than 40×10−7/° C. and a transition temperature higher than 500° C.

摘要翻译： 本发明的目的是提供一种由耐热玻璃制成的反射器。 本发明的另一个目的是提供一种使用该反射器的投影显示器。

公开(公告)号：US20050146786A1

公开(公告)日：2005-07-07

申请号：US10953413

申请日：2004-09-28

申请人： Hidehiro Ikeda ,  Koji Hirata ,  Shuji Kato ,  Masahiro Yamamoto ,  Masahiko Yatsu

发明人： Hidehiro Ikeda ,  Koji Hirata ,  Shuji Kato ,  Masahiro Yamamoto ,  Masahiko Yatsu

IPC分类号： G02B13/16 ,  G02B27/14 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/10 ,  G03B21/14 ,  H04N5/74 ,  H04N17/00 ,  G03B21/56 ,  G02B3/00 ,  G02B9/00

CPC分类号： G02B27/1046 ,  G02B13/16 ,  G02B27/145 ,  G02B27/149 ,  H04N5/74 ,  H04N5/7441 ,  H04N9/3105 ,  H04N9/3141 ,  H04N9/3185

摘要： A compact rear projection image display apparatus in which the projection distance in a projection optical system is substantially reduced and no reflection mirror is used, thereby eliminating a major cause of image trapezoidal distortion. The rear projection image display apparatus has a projection lens system which includes a first lens group with positive refractive power and a second lens group which further enlarges an image enlarged by the first lens group. The projection lens system enlarges and projects an image displayed on an image display device, on a transmission screen. No reflection mirror is provided between the second lens group and the transmission screen and the image enlarged by the second lens group is directly projected on the transmission screen.

摘要翻译： 一种紧凑的背投影像显示装置，其中投影光学系统中的投影距离大大减小，并且不使用反射镜，从而消除了图像梯形失真的主要原因。 背投影像显示装置具有投影透镜系统，该投影透镜系统包括具有正屈光力的第一透镜组和第二透镜组，该第二透镜组进一步放大由第一透镜组放大的图像。 投影透镜系统在透射屏幕上放大并投影显示在图像显示装置上的图像。 在第二透镜组和透射屏之间没有设置反射镜，并且由第二透镜组放大的图像直接投影在透射屏上。

公开(公告)号：US20050140926A1

公开(公告)日：2005-06-30

申请号：US11009053

申请日：2004-12-13

申请人： Koji Hirata ,  Tsutomu Nakashima ,  Masahiko Yatsu

发明人： Koji Hirata ,  Tsutomu Nakashima ,  Masahiko Yatsu

IPC分类号： G02F1/13 ,  G02B27/18 ,  G02F1/1335 ,  G02F1/13357 ,  G03B21/00 ,  G03B21/10 ,  G03B21/14 ,  H04N5/74 ,  H04N9/31

CPC分类号： H04N9/3105

摘要： The present invention provides a projection type image display device capable of affording a bright display of a high saturation and capable of ensuring a high reliability of optical parts. The projection type image display device is provided with a color synthesizer for color-synthesizing modulated and polarized light of red light, green light, and blue light, outputted from an image display element. The color synthesizer has an optical characteristic such that the transmittance including reflection by a reflecting film in the interior of the color synthesizer becomes highest for the polarized light of blue light out of the modulated and polarized light of red light, that of green light, and that of blue light. The color synthesizer also has an optical characteristic such that the quantity of the polarized light of blue light outputted becomes largest out of the modulated and polarized light of red light, green light, and blue light.

摘要翻译： 本发明提供了能够提供高饱和度的明亮显示并且能够确保光学部件的高可靠性的投影型图像显示装置。 投影型图像显示装置设置有用于对从图像显示元件输出的红光，绿光和蓝光的调制偏振光进行颜色合成的颜色合成器。 彩色合成器具有这样的光学特性，使得包括彩色合成器内部的反射膜的反射的透射率对于红光的调制偏振光和绿光的偏振光中的蓝色光的偏振光变得最高，以及 蓝光。 彩色合成器还具有使得输出的蓝光的偏振光的量在红光，绿光和蓝光的调制偏振光中变得最大的光学特性。

公开(公告)号：US20050117123A1

公开(公告)日：2005-06-02

申请号：US10921938

申请日：2004-08-20

申请人： Masahiko Yatsu ,  Koji Hirata ,  Hidehiro Ikeda

发明人： Masahiko Yatsu ,  Koji Hirata ,  Hidehiro Ikeda

IPC分类号： G02B13/24 ,  G02B9/12 ,  G02B13/18 ,  G02B13/22 ,  G02B27/18 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  G03B21/14

CPC分类号： G02B13/22 ,  G03B21/142

摘要： A projection optical unit has two lens groups. A first projection optical unit disposed closest to an image display element, temporarily forms a first enlarged image (magnification: M1) at the image display element side, rather than at a second projection optical unit. The first enlarged image is subsequently projected in an enlarged form (magnification: M2, wherein M2>M1) onto a screen via the second projection optical unit. A field lens group having positive refractive power is disposed between the first projection optical unit and the second projection optical unit. Consequently, the relationship between F2, which is the F-value of the second projection optical unit, and F1, which is the F-value of the first projection optical unit, becomes F2=F1/M1, whereby it is possible to realize very-wide-angle imaging at a field angle exceeding 90 degrees.

摘要翻译： 投影光学单元具有两个透镜组。 靠近图像显示元件设置的第一投影光学单元在图像显示元件侧暂时形成第一放大图像（倍率：M1），而不是在第二投影光学单元处形成。 随后经由第二投影光学单元以放大的形式（倍率：M2，其中M2> M1）将第一放大图像投影到屏幕上。 具有正折光力的场透镜组设置在第一投影光学单元和第二投影光学单元之间。 因此，作为第二投影光学单元的F值的F2与作为第一投影光学单元的F值的F1之间的关系变为F2 = F1 / M1，从而可以非常实现 场角超过90度的全角度成像。

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。

公开(公告)号：US09116349B2

公开(公告)日：2015-08-25

申请号：US14127982

申请日：2011-06-22

申请人： Koji Hirata ,  Masahiko Yatsu

发明人： Koji Hirata ,  Masahiko Yatsu

IPC分类号： G02B26/08 ,  G02B26/10 ,  G02B26/12 ,  G02B17/08 ,  G02B21/00

CPC分类号： G02B26/101 ,  G02B17/08 ,  G02B17/0852 ,  G02B21/0096 ,  G02B26/0833

摘要： An image display device having a scanning characteristic excellent in the linearity without being upsized is provided. The image display device includes: an optical scanning unit that scans a light emitted from a light source in a first direction and a second direction of an image plane due to a rotational movement of reciprocation of a reflecting surface of the light; and an optical system enlarges a scanning angle of the scanned light, in which the optical system has a free curved surface lens on an optical scanning unit side, and has a free curved surface mirror on an image plane side. The free curved surface mirror may be arranged so that the first direction is substantially parallel to a first plane defined by an incident optical beam and a reflected light in the free curved surface mirror when the optical scanning unit remains static in the center of the scanning range.

摘要翻译： 提供一种图像显示装置，其具有在不增大尺寸的情况下具有优异线性的扫描特性。 图像显示装置包括：光学扫描单元，其由于光的反射面的往复运动而沿第一方向和图像平面的第二方向扫描从光源发射的光; 并且光学系统放大扫描光的扫描角度，其中光学系统在光学扫描单元侧具有自由曲面透镜，并且在像面侧具有自由曲面镜。 自由曲面反射镜可以布置成使得当光学扫描单元在扫描范围的中心保持静止时，第一方向基本上平行于由入射光束限定的第一平面和自由曲面反射镜中的反射光 。

公开(公告)号：US08733953B2

公开(公告)日：2014-05-27

申请号：US13021101

申请日：2011-02-04

申请人： Koji Hirata ,  Masahiko Yatsu ,  Takanori Hisada ,  Hidehiro Ikeda

发明人： Koji Hirata ,  Masahiko Yatsu ,  Takanori Hisada ,  Hidehiro Ikeda

IPC分类号： G03B21/20

CPC分类号： G03B21/62 ,  G02F1/133526 ,  G02F1/133604 ,  G02F1/133605 ,  G02F1/133611 ,  G02F1/13362 ,  G02F1/13471 ,  G02F2001/133607 ,  G02F2001/133622 ,  G03B21/208 ,  G03B21/26 ,  G03B21/28 ,  H04N9/3155

摘要： A display apparatus includes a light source which is configured to emit a light, a first light modulation unit which is configured modulate the light emitted from said light source, a first drive unit which is configured to drive said first light modulation unit, a projection unit, which is configured to project the light from said first light modulation unit enlargedly, a second light modulation unit, which is configured to modulate the light emitted from said projection unit so as to be emitted to an observer side, a second drive unit which is configured to drive said second light modulation unit, and an optical direction conversion unit, which is configured to convert the light from said projection unit so that the light is incident upon an incident surface of said second light modulation unit in a direction approximately perpendicular thereto.

摘要翻译： 一种显示装置，包括被配置为发光的光源，被配置为调制从所述光源发射的光的第一光调制单元，被配置为驱动所述第一光调制单元的第一驱动单元，投影单元 其被配置为从所述第一调光单元放大的光投射第二光调制单元，其被配置为调制从所述投影单元发射的光以被发射到观察者侧;第二驱动单元，其是 被配置为驱动所述第二光调制单元，以及光学方向转换单元，其被配置为转换来自所述投影单元的光，使得光在与所述第二光调制单元的大致垂直的方向上入射到所述第二调光单元的入射表面。

公开(公告)号：US20140126033A1

公开(公告)日：2014-05-08

申请号：US14127982

申请日：2011-06-22

申请人： Koji Hirata ,  Masahiko Yatsu

发明人： Koji Hirata ,  Masahiko Yatsu

IPC分类号： G02B26/10 ,  G02B26/08

CPC分类号： G02B26/101 ,  G02B17/08 ,  G02B17/0852 ,  G02B21/0096 ,  G02B26/0833

摘要： An image display device having a scanning characteristic excellent in the linearity without being upsized is provided. The image display device includes: an optical scanning unit that scans a light emitted from a light source in a first direction and a second direction of an image plane due to a rotational movement of reciprocation of a reflecting surface of the light; and an optical system enlarges a scanning angle of the scanned light, in which the optical system has a free curved surface lens on an optical scanning unit side, and has a free curved surface mirror on an image plane side. The free curved surface mirror may be arranged so that the first direction is substantially parallel to a first plane defined by an incident optical beam and a reflected light in the free curved surface mirror when the optical scanning unit remains static in the center of the scanning range.

摘要翻译： 提供一种图像显示装置，其具有在不增大尺寸的情况下具有优异线性的扫描特性。 图像显示装置包括：光学扫描单元，其由于光的反射表面的往复运动而沿第一方向和图像平面的第二方向扫描从光源发射的光; 并且光学系统放大扫描光的扫描角度，其中光学系统在光学扫描单元侧具有自由曲面透镜，并且在像面侧具有自由曲面镜。 自由曲面反射镜可以布置成使得当光学扫描单元在扫描范围的中心保持静止时，第一方向基本上平行于由入射光束限定的第一平面和自由曲面反射镜中的反射光 。