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1. 发明授权

US07002641B2 Projection display apparatus with quarter phase difference plate and phase compensation element 失效
标题翻译：具有四分之一相位差板和相位补偿元件的投影显示装置
公开(公告)号：US07002641B2
公开(公告)日：2006-02-21
申请号：US10376846
申请日：2003-02-28
申请人： Atsushi Okuyama , Tatsuo Chigira , Masayuki Abe
发明人： Atsushi Okuyama , Tatsuo Chigira , Masayuki Abe
IPC分类号： G02F1/13363
CPC分类号： H04N9/3105 , G02F1/133634 , G02F2001/13355 , G02F2001/133638 , G02F2203/02 , H04N9/3167
摘要： There is disclosed a display apparatus including a polarizing beam splitter for splitting light from a light source, a reflective liquid crystal display element illuminated by light of a predetermined polarizing direction through the polarizing beam splitter, and a double refractive phase compensation element arranged between the polarizing beam splitter and the reflective liquid crystal display element.
摘要翻译：公开了一种显示装置，包括用于分离来自光源的光的偏振分束器，通过偏振分束器以预定的偏振方向的光照射的反射型液晶显示元件，以及布置在偏光分光器之间的双折射相位补偿元件分束器和反射型液晶显示元件。

2. 发明授权

US06992833B2 Color combining optical system, projection-type display optical system, projection-type image display apparatus, and image display system 失效
标题翻译：彩色组合光学系统，投影式显示光学系统，投影型图像显示装置和图像显示系统
公开(公告)号：US06992833B2
公开(公告)日：2006-01-31
申请号：US10631393
申请日：2003-07-31
申请人： Tatsuo Chigira , Atsushi Okuyama , Masayuki Abe
发明人： Tatsuo Chigira , Atsushi Okuyama , Masayuki Abe
IPC分类号： G02B27/10
CPC分类号： G02B27/1046 , G02B27/145 , G02B27/283
摘要： A color combining optical system which can suppress occurrence of a thermal problem and increase in size is disclosed. The color combining optical system comprises a first optical element which has a first optical film reflecting light having a first polarizing direction and transmitting light in a second polarizing direction and combines the first and second color lights by the first optical film. In addition, the optical system comprises a polarizing plate which analyzes a third color light. Furthermore, the optical system comprises a second optical element which combines, by a second optical film, the third color light transmitted through the polarizing plate with the first and second color lights combined by the first optical element.
摘要翻译：公开了一种可以抑制热问题的发生和尺寸增加的彩色组合光学系统。彩色组合光学系统包括第一光学元件，该第一光学元件具有反射具有第一偏振方向的光并且透射第二偏振方向的光的第一光学膜，并且由第一光学膜组合第一和第二颜色光。此外，光学系统包括分析第三颜色光的偏振片。此外，光学系统包括第二光学元件，其由第二光学膜组合透过偏振片的第三色光与由第一光学元件组合的第一和第二色光。

3. 发明授权

US07156520B2 Color separating optical system, image display optical system, and projection image display apparatus 有权
标题翻译：分色光学系统，图像显示光学系统和投影图像显示装置
公开(公告)号：US07156520B2
公开(公告)日：2007-01-02
申请号：US10235975
申请日：2002-09-04
申请人： Tatsuo Chigira , Atsushi Okuyama , Masayuki Abe
发明人： Tatsuo Chigira , Atsushi Okuyama , Masayuki Abe
IPC分类号： G03B21/14 , G03B21/18 , G03B21/26 , G03B21/28 , G02F1/1335
CPC分类号： H04N9/3117 , G02B27/283 , H04N9/3105 , H04N9/3167
摘要： A color separating-combining optical system is configured to separate illumination light into a plurality of color spectrums, guiding these color spectrums to respective image display elements, and combining the color spectrums modulated by the image display elements. The system includes a first polarization separating optical system that reflects the first color spectrum from the separating optical system to a first image display element and transmits the first color spectrum from the first image display element to the combining optical system. Similarly, a second polarization separating optical system is provided that reflects and transmits the second color spectrum. The degree of linear polarization of a reflected color can be maintained higher than that of another, and/or an antireflection element can be included in the path of reflected light.
摘要翻译：配色分离组合光学系统被配置为将照明光分离成多个色谱，将这些色谱引导到各自的图像显示元件，以及组合由图像显示元件调制的色谱。该系统包括将第一色谱从分离光学系统反射到第一图像显示元件的第一偏振分离光学系统，并将第一色谱从第一图像显示元件传输到组合光学系统。类似地，提供了反射和透射第二色谱的第二偏振分离光学系统。反射色的线偏振度可以保持高于另一反射色的偏振度，并且/或抗反射元件可以被包括在反射光的路径中。

4. 发明申请

US20050174652A1 Color combining optical system, projection-type display optical system, projection-type image display apparatus, and image display system 失效
标题翻译：彩色组合光学系统，投影式显示光学系统，投影型图像显示装置和图像显示系统
公开(公告)号：US20050174652A1
公开(公告)日：2005-08-11
申请号：US10631393
申请日：2003-07-31
申请人： Tatsuo Chigira , Atsushi Okuyama , Masayuki Abe
发明人： Tatsuo Chigira , Atsushi Okuyama , Masayuki Abe
IPC分类号： G02B5/04 , G02B27/14 , G02B27/28 , G02F1/13 , G02F1/1335 , G03B21/00 , G03B21/16 , H04N9/31
CPC分类号： G02B27/1046 , G02B27/145 , G02B27/283
摘要： A color combining optical system which can suppress occurrence of a thermal problem and increase in size is disclosed. The color combining optical system comprises a first optical element which has a first optical film reflecting light having a first polarizing direction and transmitting light in a second polarizing direction and combines the first and second color lights by the first optical film. In addition, the optical system comprises a polarizing plate which analyzes a third color light. Furthermore, the optical system comprises a second optical element which combines, by a second optical film, the third color light transmitted through the polarizing plate with the first and second color lights combined by the first optical element.
摘要翻译：公开了一种可以抑制热问题的发生和尺寸增加的彩色组合光学系统。彩色组合光学系统包括第一光学元件，该第一光学元件具有反射具有第一偏振方向的光并且透射第二偏振方向的光的第一光学膜，并且由第一光学膜组合第一和第二颜色光。此外，光学系统包括分析第三颜色光的偏振片。此外，光学系统包括第二光学元件，其由第二光学膜组合透过偏振片的第三色光与由第一光学元件组合的第一和第二色光。

5. 发明授权

US06831706B2 Projection image display apparatus 失效
标题翻译：投影图像显示装置
公开(公告)号：US06831706B2
公开(公告)日：2004-12-14
申请号：US10197131
申请日：2002-07-17
申请人： Masayuki Abe , Keiji Ohtaka , Atsushi Okuyama
发明人： Masayuki Abe , Keiji Ohtaka , Atsushi Okuyama
IPC分类号： G02F11335
CPC分类号： G02B27/1026 , G02B27/14 , G02B27/145 , G02B27/283 , H04N5/7441 , H04N9/3167
摘要： When light from a reflection image display element is incident on a polarization split surface at an angle other than 45°, leakage light that decreases the contrast of an image is produced. In a projection image display apparatus which illuminates an image display element with light from a light source and projects light from the image display element through two polarization split surfaces, when the angles of first and second light rays, of light rays incident on the polarization split surface, with respect to the optical axis correspond to 55% of the maximum angle of the incident light rays with respect to the optical axis, where light rays of which incident angle with respect to said image display element is larger is set as first light ray and light rays of which incident angle with respect to said image display element is smaller is set as second light ray, and a light shielding characteristic value L on the two polarization split surfaces is represented by L=[(M1)a·(M1)b+(M2)a·(M2)b]/2 where (M1)a is the amount of leakage light of the first light ray on the polarization split on the reflection image display element side, (M2)a is the amount of leakage light of the second light ray, (M1)b is the amount of leakage light of the first light ray on the polarization split on the projection optical system side, and (M2)b is the amount of leakage light of the second light ray.
摘要翻译：当来自反射图像显示元件的光以不同于45°的角度入射到偏振分割表面时，产生降低图像的对比度的泄漏光。在利用来自光源的光照射图像显示元件的投影图像显示装置中，通过两个偏振分割面投影来自图像显示元件的光，当入射到偏振光分离体上的光线的第一和第二光线的角度表面相对于光轴对应于入射光线相对于光轴的最大角度的55％，其中相对于所述图像显示元件的入射角较大的光线较大，被设定为第一光线将相对于所述图像显示元件的入射角较小的光线设定为第二光线，并且将两个偏振分割面的遮光特性值L表示为L = [（M1）a（M1） b +（M2）a。（M2）b] / 2其中（M1）a是第一光线在反射图像显示元件侧的偏振分束上的泄漏光量，（M2）a是泄漏量的光（M1）b是投影光学系统侧的偏振光分割时的第一光线的泄漏光量，（M2）b是第二光线的漏光量。

6. 发明授权

US06942345B2 Projection type image display apparatus and image display system 失效
标题翻译：投影型图像显示装置和图像显示系统
公开(公告)号：US06942345B2
公开(公告)日：2005-09-13
申请号：US10305502
申请日：2002-11-27
申请人： Atsushi Okuyama , Keiji Otaka , Hiroyuki Kodama , Masayuki Abe
发明人： Atsushi Okuyama , Keiji Otaka , Hiroyuki Kodama , Masayuki Abe
IPC分类号： G03B21/00 , G03B21/14
CPC分类号： G03B21/005
摘要： In a projection type image display apparatus, when the angle of light incident on the multi-layer film of a polarizing beam splitter for synthesizing an optical path becomes uneven, the loss of the light occurs. So, the projection type image display apparatus of the present invention is provided with an illuminating optical system 1-5b, a color separating and synthesizing optical system 7 for separating illuminating light from the illuminating optical system into a plurality of color lights and making the respective color lights enter image display elements 8r-8b provided for the respective color lights, and synthesizing a plurality of image lights emerging from these image display elements, a projection optical system 10 for projecting and displaying the image lights synthesized by the color separating and synthesizing optical system, and polarizing elements Pr, Pg, Pb for transmitting only a particular polarized component light therethrough disposed between the color separating and synthesizing optical system and the image display elements.
摘要翻译：在投影型图像显示装置中，当入射到用于合成光路的偏振分束器的多层膜上的光的角度变得不均匀时，发生光的损失。因此，本发明的投影型图像显示装置设置有照明光学系统1-5b，用于将照明光学系统的照明光分离成多个彩色光的分色合成光学系统7，相应的颜色光进入为各种颜色的光提供的图像显示元件8 r-8 b，并且合成从这些图像显示元件出现的多个图像光;投影光学系统10，用于投影和显示由分色合成的图像光以及合成光学系统，以及偏振元件Pr，Pg，Pb，用于仅透过设置在分色光合系统和合成光学系统之间的特定的偏振分量光和图像显示元件。

7. 发明申请

US20050041165A1 Image display apparatus 有权
标题翻译：图像显示装置
公开(公告)号：US20050041165A1
公开(公告)日：2005-02-24
申请号：US10922402
申请日：2004-08-19
申请人： Masayuki Abe , Atsushi Okuyama
发明人： Masayuki Abe , Atsushi Okuyama
IPC分类号： G02F1/13 , G02B27/14 , G02B27/28 , G02F1/1335 , G03B21/00
CPC分类号： G02B27/1026 , G02B27/145 , G02B27/283 , H04N9/3105
摘要： An image display apparatus is disclosed which is capable of obtaining a projected image having high contrast. The image display apparatus includes a luminous flux dividing system dividing light from a light source into a plurality of luminous fluxes and a condensing optical system leading the luminous fluxes emerged from the luminous flux dividing system to a reflective liquid crystal display element. The condensing optical system includes a condenser lens, a field lens making light from the condenser lens substantially telecentric, a polarization beam splitter, and a ¼ phase plate disposed between the polarization beam splitter and the liquid crystal display element. In addition, the phase difference φ that the ¼ phase plate gives to the ray made incident into the ¼ phase plate at an angle θ satisfies: π/2×0.8
摘要翻译：公开了能够获得具有高对比度的投影图像的图像显示装置。该图像显示装置包括将来自光源的光分成多个光束的光束分割系统和将从光束分割系统出射的光束引导到反射型液晶显示元件的聚光系统。聚光光学系统包括聚光透镜，从大致远心聚光透镜制造光的场透镜，偏振分束器和设置在偏振分束器和液晶显示元件之间的1/4相位板。另外，¼相位板给出以角度θ入射到1/4相位板中的光线的相位差phi满足：pi / 2x0.8

8. 发明授权

US07137704B2 Color splitting/combining optical system and image projecting apparatus 有权
标题翻译：分色/组合光学系统和图像投影设备
公开(公告)号：US07137704B2
公开(公告)日：2006-11-21
申请号：US10807814
申请日：2004-03-23
申请人： Atsushi Okuyama , Masayuki Abe
发明人： Atsushi Okuyama , Masayuki Abe
IPC分类号： G03B21/14 , G02F1/13363
CPC分类号： H04N9/3105 , H04N9/3167
摘要： A color splitting/combining optical system includes a first optical member for color splitting and a second optical member which has a polarization splitting surface for color splitting/combining, a third optical member for color combining a first color-selective wave plates and a second color-selective wave plate. The first and second color-selective wave plates convert the polarization direction of light in a first and second wavelength regions respectively by 90 degrees. The optical system satisfies λ1≠λ2, where λ1 and λ2 represent wavelengths in which the ratio of the light component having the polarization direction converted by 90 degrees by the first and second color-selective wave plates respectively become substantially 50%.
摘要翻译：分色/组合光学系统包括用于分色的第一光学构件和具有用于分色/组合的偏振分离表面的第二光学构件，用于将第一颜色选择波片和第二颜色组合的第三光学构件选择波片。第一和第二颜色选择波片将第一和第二波长区域中的光的偏振方向分别转换90度。光学系统满足λ1λ2，其中λ1和λ2表示第一和第二色选波片转换90度的偏振方向的光分量的比率分别变为50％的波长。

9. 发明授权

US07213924B2 Image projection apparatus and image projection system 失效
标题翻译：图像投影装置和图像投影系统
公开(公告)号：US07213924B2
公开(公告)日：2007-05-08
申请号：US10945765
申请日：2004-09-21
申请人： Atsushi Okuyama , Masayuki Abe
发明人： Atsushi Okuyama , Masayuki Abe
IPC分类号： G03B21/14 , G02F1/01 , G02B5/30
CPC分类号： G03B33/12 , G03B21/006
摘要： The image projection apparatus includes a first, a second and a third reflective liquid crystal display element, an illumination optical system which color-separates light from a light source into first, second and third color light component and illuminating the three reflective liquid crystal display elements with the respective color light components, a projection optical system combining the color light components emerged from the three reflective liquid crystal display elements and projecting the combined color light components onto a projection surface, and an incidence side polarizing plate arranged between the light source and at least one of the three reflective liquid crystal display elements. An average value of a transmittance, in a wavelength region of 450 nm to 630 nm, of the incidence side polarizing plate for light of a polarization direction to be blocked thereby is 5% or less.
摘要翻译：图像投影装置包括第一反射型液晶显示元件和第三反射型液晶显示元件，将来自光源的光分色为第一，第二及第三颜色的光分量，照射三个反射型液晶显示元件的照明光学系统与各个彩色光分量组合的投影光学系统，组合从三个反射型液晶显示元件出射的彩色光成分并将组合的彩色光分量投影到投影表面上，并且入射侧偏振片配置在光源和三个反射液晶显示元件中的至少一个。在偏光方向的光的入射侧偏振片的波长450nm〜630nm的波长区域的透射率的平均值为5％以下。

10. 发明申请

US20050062936A1 Image projection apparatus and image projection system 失效
标题翻译：图像投影装置和图像投影系统
公开(公告)号：US20050062936A1
公开(公告)日：2005-03-24
申请号：US10945765
申请日：2004-09-21
申请人： Atsushi Okuyama , Masayuki Abe
发明人： Atsushi Okuyama , Masayuki Abe
IPC分类号： G02F1/13 , G02B27/10 , G02B27/18 , G02B27/28 , G02F1/1335 , G03B21/00 , G03B21/14
CPC分类号： G03B33/12 , G03B21/006
摘要： The image projection apparatus includes a first, a second and a third reflective liquid crystal display element, an illumination optical system which color-separates light from a light source into first, second and third color light component and illuminating the three reflective liquid crystal display elements with the respective color light components, a projection optical system combining the color light components emerged from the three reflective liquid crystal display elements and projecting the combined color light components onto a projection surface, and an incidence side polarizing plate arranged between the light source and at least one of the three reflective liquid crystal display elements. An average value of a transmittance, in a wavelength region of 450 nm to 630 nm, of the incidence side polarizing plate for light of a polarization direction to be blocked thereby is 5% or less.
摘要翻译：图像投影装置包括第一反射型液晶显示元件和第三反射型液晶显示元件，将来自光源的光分色为第一，第二和第三色光分量，照射三个反射型液晶显示元件的照明光学系统与各个彩色光分量组合的投影光学系统，组合从三个反射型液晶显示元件出射的彩色光成分并将组合的彩色光分量投影到投影表面上，并且入射侧偏振片配置在光源和三个反射液晶显示元件中的至少一个。在偏光方向的光的入射侧偏振片的波长450nm〜630nm的波长区域的透射率的平均值为5％以下。

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