公开(公告)号：US06646809B1

公开(公告)日：2003-11-11

申请号：US09848272

申请日：2001-05-04

申请人： Toshiki Ishino ,  Takashi Sudo ,  Atsushi Okuyama

发明人： Toshiki Ishino ,  Takashi Sudo ,  Atsushi Okuyama

IPC分类号： G02B2714

CPC分类号： G02B27/0172 ,  G02B2027/011 ,  G02B2027/012 ,  G02B2027/0132 ,  G02B2027/0178

摘要： An image display apparatus includes a light source for emitting illumination light, an image display element for displaying an image by reflecting incident light, an illumination optical element which reflects the illumination light from the light source toward the image display element and through which image light from the image display element is transmitted, an observation optical element for guiding the image light transmitted through the illumination optical element to an eye of an observer, and a light-shielding member for blocking at least one of unnecessary light which is contained in the illumination light from the light source and travels outside an effective image display area of the image display element and unnecessary light which is contained in the image light from the image display element and travels outside an effective observation space.

摘要翻译： 图像显示装置包括用于发射照明光的光源，用于通过反射入射光来显示图像的图像显示元件，将来自光源的照明光朝向图像显示元件反射的照明光学元件， 发送图像显示元件，用于将透过照明光学元件的图像光引导到观察者的眼睛的观察光学元件，以及用于阻挡包含在照明光中的不必要的光中的至少一种的遮光部件 并且在图像显示元件的有效图像显示区域外面行进，并且来自图像显示元件的包含在图像光中的不必要的光在有效观察空间外行进。

公开(公告)号：US06552854B2

公开(公告)日：2003-04-22

申请号：US09842057

申请日：2001-04-26

申请人： Junko Kuramochi ,  Atsushi Okuyama ,  Takashi Sudo

发明人： Junko Kuramochi ,  Atsushi Okuyama ,  Takashi Sudo

IPC分类号： G02B2714

CPC分类号： G02B27/0172 ,  G02B5/30 ,  G03B13/08

摘要： An image display apparatus includes a light source for supplying illumination light, a reflection type display element for modulating the illumination light into image light by reflecting the light, an illumination optical system for guiding the illumination light to the reflection type display element, and a projection optical system for guiding the image light to an observer. The image light is incident on the projection optical system via at least a portion of said illumination optical system. The projection optical system includes a member for correcting an optical path length difference between rays of the image light caused when the image light is incident on the projection optical system via at least a portion of the illumination optical system.

公开(公告)号：US06513934B1

公开(公告)日：2003-02-04

申请号：US09502652

申请日：2000-02-11

申请人： Atsushi Okuyama

发明人： Atsushi Okuyama

IPC分类号： G03B2100

CPC分类号： G02B27/149 ,  G02B27/1046 ,  G02B27/145 ,  G02B27/283 ,  H04N9/3105 ,  H04N9/3167

摘要： A projection apparatus having a light source, a color separating system for separating the light from the light source into a plurality of color beams, a plurality of light modulating elements for modulating the separated color beams, based on an image signal, a color combining system for combining the modulated color beams, and a projection optical system for projecting composite light of the combined color beams, onto a screen. The color combining system incorporates a cross dichroic prism with dichroic films on joint surfaces between four prisms, each of the color beams incident to the cross dichroic prism is converted into linearly polarized light, and the following relation is met: 0°

摘要翻译： 具有光源的投影设备，用于将光源从光源分离成多个彩色光束的分色系统，用于基于图像信号调制分离的彩色光束的多个光调制元件，颜色合成系统 用于将调制的彩色光束组合，以及用于将组合的彩色光束的复合光投射到屏幕上的投影光学系统。 彩色组合系统在四个棱镜之间的接合表面上结合了二向色棱镜与二向色膜，入射到十字分色棱镜的每个彩色光束被转换为线偏振光，并且满足以下关系：其中θ是 由所有二色性膜透射的彩色光束分量的偏振方向和由二色性膜反射的彩色分量的偏振方向。

公开(公告)号：US06406149B2

公开(公告)日：2002-06-18

申请号：US09351901

申请日：1999-07-14

申请人： Atsushi Okuyama

发明人： Atsushi Okuyama

IPC分类号： G03B2114

CPC分类号： G02B27/285 ,  G02B27/283 ,  H04N5/74 ,  H04N5/7441

摘要： An illuminating apparatus includes a condensing optical system for converting light from a light source into convergent light, a first convex lens array for receiving the convergent light, and a collimating optical system for making a plurality of light beams from the first convex lens array parallel to one another. In addition, a polarization converting element array individually converts the plurality of light beams from the collimating optical system into polarized lights.

摘要翻译： 照明装置包括用于将来自光源的光转换成会聚光的聚光系统，用于接收会聚光的第一凸透镜阵列和用于使来自第一凸透镜阵列的多个光束平行于 另一个。 此外，偏振转换元件阵列将来自准直光学系统的多个光束分别转换为偏振光。

公开(公告)号：US06351332B1

公开(公告)日：2002-02-26

申请号：US09639744

申请日：2000-08-15

申请人： Atsushi Okuyama ,  Shuichi Kobayashi ,  Ken Wada

发明人： Atsushi Okuyama ,  Shuichi Kobayashi ,  Ken Wada

IPC分类号： G02B518

CPC分类号： G02B26/06 ,  G02B27/46

摘要： An optical low-pass filter comprises a phase advancing area which advances a phase of a wavefront of an incident pencil of rays with respect to a phase of a wavefront of a center of the incident pencil of rays, and a phase retarding area which retards the phase of the wavefront of the incident pencil of rays with respect to the phase of the wavefront of the center of the incident pencil of rays, the phase advancing area and the phase retarding area alternately existing in the optical low-pass filter, and an optical apparatus comprises an image forming optical system, an image pickup element, and such an optical low-pass filter.

摘要翻译： 光学低通滤波器包括相位前进区域，该相位前进区域相对于入射的光线中心的波前的相位推进入射的射线笔的波前的相位，以及延迟区域 相对于入射光线中心的波前相位，交替存在于光学低通滤波器中的相位推进区域和相位延迟区域的入射光线的波前相位，以及光学 装置包括图像形成光学系统，图像拾取元件和这种光学低通滤波器。

公开(公告)号：US5815741A

公开(公告)日：1998-09-29

申请号：US856684

申请日：1997-05-15

申请人： Atsushi Okuyama ,  Shouichi Yamazaki

发明人： Atsushi Okuyama ,  Shouichi Yamazaki

IPC分类号： G03B13/02 ,  G02B23/02 ,  G02B27/00 ,  G02B27/01 ,  G02B27/02 ,  H04N5/225 ,  G03L7/08 ,  A61B31/14

CPC分类号： G02B27/0093 ,  G02B27/017 ,  G02B27/0172 ,  G03B13/02 ,  H04N5/2251 ,  G02B2027/011 ,  G02B2027/0132 ,  G02B2027/0138 ,  G02B2027/0156 ,  G02B2027/0178 ,  G02B2027/0187 ,  G02B2027/0198 ,  G03B2213/025

摘要： An image observing apparatus according to the present invention includes: an optical element including a first face inclined relative to an observer, a second face composed of a reflective concave side, and a third face which the light from the image enters so as to have overall a positive refractive power; a line-of-sight detecting device for detecting a line of sight of the observer including a light source to illuminate a fore eye portion of the observer and a light receiving device for receiving an image of the fore eye portion; and a light reflecting device, provided in an observing side of the first face, for reflecting the light emanating from the light source. In this image observing apparatus, the light from the image entering the third face is reflected by the first face, is condenser-reflected at a first face side by the second face, and is irradiated from the first face. Moreover, the light, from the light source, reflected at the fore eye portion of the observer is reflected by the light reflecting device and enters the light receiving device.

摘要翻译： 根据本发明的图像观察装置包括：光学元件，包括相对于观察者倾斜的第一面，由反射凹面组成的第二面和来自图像的光进入的第三面， 正屈光力; 用于检测观察者的视线的视线检测装置，其包括用于照射观察者的前眼部的光源和用于接收前眼部的图像的光接收装置; 以及设置在所述第一面的观察侧的用于反射从所述光源发出的光的光反射装置。 在该图像观察装置中，来自进入第三面的图像的光被第一面反射，在第一面的第二面被聚光反射，并从第一面照射。 此外，来自光源的光在观察者的前眼部反射，被光反射装置反射并进入受光装置。

公开(公告)号：US5341243A

公开(公告)日：1994-08-23

申请号：US885658

申请日：1992-05-19

申请人： Atsushi Okuyama ,  Kenichi Kimura ,  Saburo Sugawara

发明人： Atsushi Okuyama ,  Kenichi Kimura ,  Saburo Sugawara

IPC分类号： G02B15/173 ,  G02B15/14

CPC分类号： G02B15/173

摘要： A zoom lens of the rear focus type is disclosed, comprising first, second, third and fourth lens units of positive, negative, positive and positive refractive powers in this order from the object side, zooming from the wide-angle end to the telephoto end being performed by moving the second lens unit toward the image side, compensation for the image shift and focusing being performed by moving the fourth lens unit, and the zoom lens satisfying the following conditions:2.2

摘要翻译： 公开了一种后焦点类型的变焦透镜，包括从物体侧起依次具有正，负，正和正折射力的第一，第二，第三和第四透镜单元，从广角端到望远端 通过将第二透镜单元朝向图像侧移动来执行，通过移动第四透镜单元和满足以下条件的变焦透镜来补偿图像偏移和聚焦：2.2 <| Fb / FW | 0.8 <| Fb / f3,4 | <1.1其中Fb是广角端的后焦距，FW是整个透镜系统的最短焦距，f3,4是第三和第三的复合焦距 第四透镜单元。

公开(公告)号：US07976166B2

公开(公告)日：2011-07-12

申请号：US11759550

申请日：2007-06-07

申请人： Atsushi Okuyama ,  Yu Yamauchi ,  Takashi Sudo ,  Ryota Kadowaki

发明人： Atsushi Okuyama ,  Yu Yamauchi ,  Takashi Sudo ,  Ryota Kadowaki

IPC分类号： G03B21/14 ,  G03B21/26

CPC分类号： G02B27/283 ,  G03B21/14 ,  G03B21/2073 ,  G03B21/208 ,  H04N9/3152

摘要： An optical system for image projection is disclosed which is capable of improving contrast while suppressing reduction of light amount. The optical system includes a converging optical system, and a polarization beam splitting surface transmitting an incoming light flux having a first polarization direction from the converging optical system, to introduce it to the image-forming element and causing light having a second polarization direction, of an outgoing light flux from the image-forming element, to proceed to a projection optical system. In a first cross-section parallel to a normal to the polarization beam splitting surface, the converging optical system has a configuration causing an incident angle on the splitting surface of a light ray passing through a barycenter of intensity distribution of the outgoing light flux to be larger than an incident angle thereon of a light ray passing through a barycenter of intensity distribution of the incoming light flux.

摘要翻译： 公开了一种用于图像投影的光学系统，其能够在抑制光量减少的同时改善对比度。 光学系统包括会聚光学系统和偏振光束分离表面，透射来自会聚光学系统的具有第一偏振方向的入射光束，将其引入图像形成元件并使具有第二偏振方向的光具有 来自图像形成元件的输出光束，以前进到投影光学系统。 在与偏振光束分离面的法线平行的第一截面中，会聚光学系统具有使通过出射光束的强度分布的重心的光线的分离面的入射角为 大于通过入射光束的强度分布的重心的光线的入射角。

公开(公告)号：US07597446B2

公开(公告)日：2009-10-06

申请号：US11539230

申请日：2006-10-06

申请人： Atsushi Okuyama ,  Takashi Sudo

发明人： Atsushi Okuyama ,  Takashi Sudo

IPC分类号： G03B21/14 ,  G03B21/28 ,  G02F1/1335

CPC分类号： G02B27/283 ,  G03B21/2073 ,  G03B21/208 ,  H04N9/3105 ,  H04N9/3167

摘要： An illumination optical system is disclosed which capable of uniformly illuminating a surface to be illuminated. The illumination optical system comprises a polarization conversion element which converts a luminous flux from a light source into a luminous flux having a certain polarization direction, a polarization beam splitter which splits the luminous flux from the polarization conversion element, and a phase plate which gives a phase difference to the luminous flux from the polarization beam splitter. The system illuminates the surface with the luminous flux from the phase plate and satisfies the conditions θx

摘要翻译： 公开了一种照明光学系统，其能够均匀照射被照射的表面。 照明光学系统包括将来自光源的光通量转换成具有一定偏振方向的光束的偏振转换元件，分离来自偏振转换元件的光束的偏振光束分离器，以及相位板，其给出 与偏振分束器的光通量的相位差。 该系统利用相位板的光通量照射表面，并满足