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1. 发明授权

US06183090B2 Projection type image display apparatus 失效
标题翻译：投影型图像显示装置
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。

2. 发明授权

US6142633A Polarized light illuminator and projection type image display apparatus 失效
标题翻译：偏振光照明器和投射型图像显示装置
公开(公告)号：US6142633A
公开(公告)日：2000-11-07
申请号：US124094
申请日：1998-07-29
申请人： Ikuo Takahara , Hiroshi Nakanishi , Hiromi Kato
发明人： Ikuo Takahara , Hiroshi Nakanishi , Hiromi Kato
IPC分类号： G02B5/30 , G02B19/00 , G02B27/18 , G02B27/28 , G02F1/13 , G02F1/1335 , G02F1/13357 , G03B21/14
CPC分类号： G02B5/3025 , G02F1/133536 , G02F1/13362 , G02F2001/133543 , G02F2001/133545
摘要： The polarized light illuminator of this invention includes: a light source; a first fly's eye lens and a second fly's eye lens disposed in this order from the light source; a polarization separation element disposed between the light source and the second fly's eye lens for separating unpolarized light into a first polarized light component and a second polarized light component having polarization directions perpendicular to each other, to output the first polarized light component and the second polarized light component in different directions from each other; and a polarization conversion element disposed near the second fly's eye lens for converting the first polarized light component and the second polarized light component output from the polarization separation element into unidirectionally polarized light, wherein the polarization separation element has a first flat plate and a second flat plate, the first flat plate having a polarization separation surface for reflecting the first polarized light component and transmitting the second polarized light component, while the second flat plate having a reflection surface for reflecting the second polarized light component which has passed through the first flat plate, the polarization separation surface and the reflection surface being disposed at different angles from each other with respect to the optical axis of the light source.
摘要翻译：本发明的偏振光照明器包括：光源; 第一蝇眼透镜和从光源依次设置的第二蝇眼透镜; 偏振分离元件，设置在所述光源和所述第二蝇眼透镜之间，用于将非偏振光分离成具有彼此垂直的偏振方向的第一偏振光分量和第二偏振光分量，以输出所述第一偏振光分量和所述第二偏振光分量光分量彼此不同的方向; 以及偏振转换元件，其设置在所述第二蝇眼透镜附近，用于将从所述偏振分离元件输出的所述第一偏振光分量和所述第二偏振光分量转换为单向偏振光，其中所述偏振分离元件具有第一平板和第二平面所述第一平板具有用于反射所述第一偏振光分量并透射所述第二偏振光分量的偏振分离面，所述第二平板具有用于反射已经穿过所述第一平板的第二偏振光分量的反射面偏光分离面和反射面相对于光源的光轴以不同的角度配置。

3. 发明授权

US06332684B1 Projection type color image display apparatus 有权
标题翻译：投影型彩色图像显示装置
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。

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