公开(公告)号：US06183090B2

公开(公告)日：2001-02-06

申请号：US09098455

申请日：1998-06-17

申请人： Hiroshi Nakanishi ,  Ikuo Takahara ,  Hiromi Kato ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Ikuo Takahara ,  Hiromi Kato ,  Hiroshi Hamada

IPC分类号： G03B2114

CPC分类号： G02B27/149 ,  G02B27/1026 ,  G02B27/1046 ,  G02B27/145 ,  H04N9/3105 ,  H04N9/3167

摘要： A projection type image display apparatus of the present invention includes: a light source; a polarization selective reflection element having a function of reflecting or transmitting a light beam from the light source in accordance with a polarization direction thereof; and an element for modulating a polarization plane of an incident light beam in accordance with an image to be displayed. The polarization selective reflection element is film-like and has an optical transmission axis and an optical reflection axis. The polarization selective reflection element transmits a first linearly polarized light beam, and reflects a second linearly polarized light beam having a polarization plane orthogonal to a polarization plane of the first linearly polarized light beam, regardless of a direction of incidence of a light beam with respect to the polarization selective reflection element.

摘要翻译： 本发明的投影型图像显示装置包括：光源; 具有根据其偏振方向从光源反射或透射光束的功能的偏振选择反射元件; 以及用于根据要显示的图像调制入射光束的偏振面的元件。 偏光选择反射元件是膜状的，并且具有光透射轴和光反射轴。 偏振选择反射元件透射第一线性偏振光束，并且反射具有与第一线性偏振光束的偏振面正交的偏振面的第二线偏振光束，而不管光束的入射方向如何 到偏振选择反射元件。

公开(公告)号：US06332684B1

公开(公告)日：2001-12-25

申请号：US09398020

申请日：1999-09-17

申请人： Takashi Shibatani ,  Hiroshi Nakanishi ,  Ikuo Takahara ,  Hiroshi Hamada

发明人： Takashi Shibatani ,  Hiroshi Nakanishi ,  Ikuo Takahara ,  Hiroshi Hamada

IPC分类号： G03B2114

CPC分类号： H04N9/3108 ,  H04N9/3167

摘要： A projection type color image display apparatus of the present invention includes: a light source section for generating white light beams; a first fly-eye lens array comprising a plurality of lenses for forming a plurality of secondary light source image spots of the light source section; a second fly-eye lens array comprising at least the same number of lenses as the first fly-eye lens array, provided near a position where the plurality of secondary light source image spots are formed by the first fly-eye lens array; a microlens array comprising a plurality of microlenses, wherein the light beams which have passed through the respective lenses of the second fly-eye lens array are superimposed on one another on the microlens array; a single image display device comprising a plurality of color pixels arranged in a predetermined arrangement for modulating the light beams from the microlenses; a color separator provided in a predetermined position in an optical path from the light source section to the microlens array for color-separating the white light beams into R, G and B beams; and a projection lens for projecting the light beams output from the image display device.

摘要翻译： 本发明的投影型彩色图像显示装置包括：用于产生白色光束的光源部分; 第一复眼透镜阵列，其包括用于形成所述光源部的多个次级光源像点的多个透镜; 第二复眼透镜阵列，其包括与所述第一复眼光透镜阵列形成的所述多个次级光源图像点的位置附近的至少相同数量的透镜; 包括多个微透镜的微透镜阵列，其中已经穿过第二复眼透镜阵列的各个透镜的光束在微透镜阵列上彼此叠置; 单个图像显示装置，包括以预定布置排列的多个彩色像素，用于调制来自微透镜的光束; 设置在从光源部到微透镜阵列的光路中的预定位置的颜色分离器，用于将白光束分色为R，G和B光束; 以及用于投影从图像显示装置输出的光束的投影透镜。

公开(公告)号：US5760850A

公开(公告)日：1998-06-02

申请号：US599320

申请日：1996-02-09

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Takashi Shibatani ,  Yoshihiro Mizuguchi ,  Hiromi Kato

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Takashi Shibatani ,  Yoshihiro Mizuguchi ,  Hiromi Kato

IPC分类号： H04N9/31 ,  G02F1/1335 ,  G02F1/1333

CPC分类号： H04N9/3108 ,  G02F2001/133623

摘要： A projection type color image display apparatus includes: a light source for emitting white light; a first optical element for dividing the white light into a plurality of colored lights and for converging each colored light to form a plurality of spots, the spots of each colored light being formed at different positions from the spots of the other colored light; a liquid crystal display element including a plurality of pixels, the pixels corresponding to the spots and modulating the respective colored lights, whereby an image displayed by the liquid crystal display element is carried by the colored lights; a second optical element for diffracting the colored lights modulated by the liquid crystal display element to make a principal ray of each colored light substantially parallel to a principal ray of the other colored light; and a third optical element for receiving the colored lights from the second optical element and for projecting the image displayed by the liquid crystal display element while the image is enlarged.

摘要翻译： 投影型彩色图像显示装置包括：用于发射白光的光源; 第一光学元件，用于将白光分为多个着色光，并且用于会聚各个着色光以形成多个点，每个有色光的斑点形成在与其它有色光的斑点不同的位置处; 液晶显示元件，其包括多个像素，所述像素对应于所述点并调制各个着色光，由此所述液晶显示元件显示的图像由所述着色灯承载; 第二光学元件，用于衍射由液晶显示元件调制的着色光，以使每个着色光的主光线基本上平行于其它有色光的主光线; 以及第三光学元件，用于从第二光学元件接收彩色光，并且用于在图像放大时投影由液晶显示元件显示的图像。

公开(公告)号：US5561538A

公开(公告)日：1996-10-01

申请号：US152708

申请日：1993-11-16

申请人： Hiromi Kato ,  Hiroshi Hamada

发明人： Hiromi Kato ,  Hiroshi Hamada

IPC分类号： G02B3/00 ,  G02B27/02 ,  G02F1/1335 ,  G02B21/22

CPC分类号： G02B3/0056 ,  G02B27/026 ,  G02B3/0068 ,  G02F1/133526

摘要： A direct-view display apparatus provides improved image quality by preventing the formation of a stripe pattern caused by parallax effects. A liquid-crystal panel for active matrix driving is disposed. A microlens array consisting of a plurality of microlenses formed in corresponding relationship to each pixel in the liquid-crystal panel is placed on a surface of a substrate of the liquid-crystal panel. A field lens and an eyepiece are disposed in this order between the microlens array and an observer. The field lens serves to converge the principal rays emerging from the microlens array in parallel with an optical axis onto the eyepiece, so that a moire pattern caused by parallax effects can be prevented from being formed and the image quality can thus be improved. Light from backlights are passed through display panels, respectively consisting of liquid-crystal cells, microlens arrays, and field lenses, and are superimposed by a crossed dichroic prism. The observer views the light superimposed by the crossed dichroic prism, i.e. a color image, through an eyepiece.

摘要翻译： 直视显示装置通过防止由视差效应引起的条纹图案的形成来提供改进的图像质量。 设置用于有源矩阵驱动的液晶面板。 将由与液晶面板中的各像素对应关系形成的多个微透镜构成的微透镜阵列放置在液晶面板的基板的表面上。 在微透镜阵列和观察者之间依次设置场透镜和目镜。 场透镜用于将从微透镜阵列出射的主光线与光轴平行地收敛到目镜上，从而可以防止由视差效应引起的莫尔图案，从而可以改善图像质量。 来自背光的光通过显示面板，分别由液晶单元，微透镜阵列和场透镜组成，并由交叉的二向色棱镜叠加。 观察者通过目镜观看由交叉的二向色棱镜叠加的光，即彩色图像。

公开(公告)号：US06179423B2

公开(公告)日：2001-01-30

申请号：US09210787

申请日：1998-12-15

申请人： Hiromi Kato ,  Hiroshi Hamada

发明人： Hiromi Kato ,  Hiroshi Hamada

IPC分类号： G03B2100

CPC分类号： G03B21/006

摘要： An illuminating light incidence mirror for introducing an illuminating light to reflection-type liquid crystal panels is provided in one of two pupil division regions constituting a pupil region of a projection lens, and reflected lights directly reflected by the reflection-type liquid crystal panels are transmitted through the other pupil division region of the projection lens and projected. In dark display, the reflected lights from the reflection-type liquid crystal panels and surface-reflected lights reflected by surfaces of the reflection-type liquid crystal panels are blocked by polarizing plates. Further, since &lgr;/4 plates and the polarizing plates are provided at inclinations with respect to the reflection-type liquid crystal panels, respectively, projection of surface-reflected lights from the &lgr;/4 plates and the polarizing plates onto a screen can be avoided.

摘要翻译： 在构成投影透镜的光瞳区域的两个光瞳分割区域中的一个中设置有用于将照明光引入反射型液晶面板的照明光入射镜，透射由反射型液晶面板直接反射的反射光 通过投影镜头的另一个瞳孔分割区域进行投影。 在暗显示中，来自反射型液晶面板的反射光和由反射型液晶面板的表面反射的表面反射光被偏振片遮挡。 此外，由于分别以相对于反射型液晶面板的倾斜角设置了羔羊/ 4板和偏振片，所以可以避免从羔羊皮/ 4板和偏振片到屏幕上的表面反射光的投影 。

公开(公告)号：US5150138A

公开(公告)日：1992-09-22

申请号：US657752

申请日：1991-02-21

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada

IPC分类号： G02F1/00 ,  G03B21/00 ,  G03B21/14 ,  G09F9/00 ,  H04N5/74 ,  H04N9/31

CPC分类号： H04N9/3152 ,  H04N5/7441

摘要： A projection type image display apparatus which includes an arc lamp for emitting light rays by arc discharge, a reflecting mirror for reflecting the light from the arc lamp, the light rays being made parallel by an optical means such as a condenser lens, and projected into a transmissive display panel. The parallel rays are focused by the microlens array in the respective picture elements. The light rays through the transmissive display panel are projected onto a screen. The arc of the arc lamp is directed perpendicularly to the optical axis of an optical system so that the light rays are made parallel with the optical axis by the optical means.

公开(公告)号：US07202917B2

公开(公告)日：2007-04-10

申请号：US10311467

申请日：2001-06-13

申请人： Hiromi Katoh ,  Hiroshi Nakanishi ,  Hiroshi Hamada ,  Akihito Jinda ,  Tadashi Kawamura ,  Takashi Shibatani

发明人： Hiromi Katoh ,  Hiroshi Nakanishi ,  Hiroshi Hamada ,  Akihito Jinda ,  Tadashi Kawamura ,  Takashi Shibatani

IPC分类号： H04N9/12 ,  H04N9/31

CPC分类号： H04N9/3188 ,  H04N9/3111 ,  H04N9/3167

摘要： A light source, an image display panel including multiple pixel regions, each of which modulates light, light control means for focusing light from the light source onto associated pixel regions according to their wavelength ranges, and optical systems that form an image on a projection plane by the light that has been modulated by the panel are provided. A circuit for generating data representing multiple image subframes from data representing each image frame as a component of the image and getting the subframes displayed by the panel time-sequentially, and an image shifter for shifting a selected one of the subframes on the projection plane are further provided. The same area on the projection plane is sequentially irradiated with light rays that have been modulated by different pixel regions of the panel and that fall within respectively different wavelength ranges.

摘要翻译： 光源，包括调制光的多个像素区域的图像显示面板，根据其波长范围将来自光源的光聚焦到相关联的像素区域上的光控制装置，以及在投影平面上形成图像的光学系统 通过由面板调制的光被提供。 一种电路，用于从表示每个图像帧的数据生成表示多个图像子帧的数据作为图像的分量，并且按时间顺序获取由面板显示的子帧;以及图像移位器，用于移动投影平面上的所选择的一个子帧， 进一步提供。 投射平面上的相同区域依次被已经被面板的不同像素区域调制并分别落在不同波长范围内的光线照射。

公开(公告)号：US06606135B2

公开(公告)日：2003-08-12

申请号：US09964520

申请日：2001-09-28

申请人： Hiroshi Nakanishi ,  Takashi Shibatani ,  Hiroshi Hamada

发明人： Hiroshi Nakanishi ,  Takashi Shibatani ,  Hiroshi Hamada

IPC分类号： G02F11335

CPC分类号： G02F1/133526 ,  G02B3/0031 ,  G02B3/0056 ,  G02B27/18

摘要： An optical lens system in accordance with the present invention is arranged so that, when the micro-lens has a curved surface satisfying an inequality of (n2/n1)×sin(&thgr;max)≧1, where n1 indicates an index of refraction of a medium constituting one side of the curved surface of the lens, n2 (n1

摘要翻译： 根据本发明的光学透镜系统被布置成使得当微透镜具有满足不等式（n2 / n1）×sin（thetamax））= 1的曲面时，其中n1表示折射率 构成透镜曲面的一侧的介质，n2（n1

公开(公告)号：US6157420A

公开(公告)日：2000-12-05

申请号：US49923

申请日：1998-03-30

申请人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Yutaka Takafuji

发明人： Hiroshi Nakanishi ,  Hiroshi Hamada ,  Yutaka Takafuji

IPC分类号： G02F1/13 ,  G03B21/00 ,  H04N9/31 ,  G02F1/1335

CPC分类号： H04N9/3105

摘要： A projection-type display apparatus includes a light source; a color separating/synthesizing device arranged to divide light from the light source into three different color light rays; and three reflection-type display devices arranged to reflect the three different color light rays, respectively. The color separating/synthesizing device is further arranged to synthesize the three different color light rays respectively reflected by the three reflection display devices. The color separating/synthesizing device has transmittance of substantially 50% for each of a s-polarized light ray having a first wavelength and a p-polarized light ray having a second wavelength. A difference between the first wavelength of the s-polarized light ray and the second wavelength of the p-polarized light ray is equal to or less than 40 nm.

摘要翻译： 投影型显示装置包括光源; 一种颜色分离/合成装置，被配置为将来自光源的光分成三种不同的彩色光线; 以及分别反射三种不同颜色的光线的三个反射型显示装置。 彩色分离/合成装置还被配置为合成由三个反射显示装置反射的三种不同的彩色光线。 对于具有第一波长的s偏振光和具有第二波长的p偏振光的每一个，分色合成装置具有大致50％的透射率。 s偏振光的第一波长和p偏振光的第二波长之间的差等于或小于40nm。

公开(公告)号：US5726719A

公开(公告)日：1998-03-10

申请号：US536815

申请日：1995-09-29

申请人： Naoyuki Tanaka ,  Hiroshi Hamada ,  Hiroshi Nakanishi ,  Hideki Ohshima

发明人： Naoyuki Tanaka ,  Hiroshi Hamada ,  Hiroshi Nakanishi ,  Hideki Ohshima

IPC分类号： G03B33/12 ,  G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  H04N5/74 ,  H04N9/31

CPC分类号： G02B27/148 ,  H04N9/3108 ,  G02F2001/133623

摘要： The projection-type color display device of the invention includes: a white light source; a splitting means for splitting white light emitted from the white light source into a first, a second, and a third beam having respectively different wavelength regions; a modulation means for modulating the first, the second and the third beams; an irradiation means for irradiating the first, the second and the third beams onto a principal surface of the modulation means at respectively different angles; and a projection means for projecting the first, the second and the third beams modulated by the modulation means. In the projection-type color display device, the first beam includes a color beam having a weakest intensity among the beams in three primary colors contained in the white light; and a direction of the first beam incident onto the principal surface of the modulation means is closer to a normal of the principal surface of the modulation means as compared with the second and the third beams.

摘要翻译： 本发明的投影型彩色显示装置包括：白光源; 分离装置，用于将从白光源发射的白光分成具有不同波长区域的第一，第二和第三光束; 用于调制第一，第二和第三光束的调制装置; 照射装置，用于以不同的角度将第一，第二和第三光束照射到调制装置的主表面上; 以及用于投影由调制装置调制的第一，第二和第三光束的投影装置。 在投影型彩色显示装置中，第一光束包括在白光中包含的三原色的光束中具有最弱强度的彩色光束; 入射到调制装置的主表面上的第一光束的方向与第二和第三光束相比更接近调制装置的主表面的法线。