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1. 发明授权

US06951395B2 Projection optical system, projection type image display apparatus, and image display system 有权
标题翻译：投影光学系统，投影型图像显示装置和图像显示系统
公开(公告)号：US06951395B2
公开(公告)日：2005-10-04
申请号：US10630556
申请日：2003-07-30
申请人： Sawako Chatani , Katsumi Kurematsu , Takayuki Ishii , Toshihiro Sunaga , Yoshiaki Kurioka
发明人： Sawako Chatani , Katsumi Kurematsu , Takayuki Ishii , Toshihiro Sunaga , Yoshiaki Kurioka
IPC分类号： G02B13/18 , G02B17/06 , G02B17/08 , G02B27/18 , G03B21/00 , G03B21/14 , H04N5/74 , G03B21/28
CPC分类号： G02B17/0852 , G02B17/0663 , G02B17/0816 , G02B17/0848 , G03B21/005 , H04N5/74
摘要： A projection optical system which has a short projection distance and a compact structure, and allows oblique projection. The projection optical system projects luminous flux from an image forming element for forming an original image onto a projection surface which is oblique to a central principal ray which is a principal ray of luminous flux traveling from the center of the original image to the center of a finally formed image. The system includes a plurality of reflecting surfaces each having a curvature. In addition, the projection optical system satisfies a predetermined expression (1).
摘要翻译：投影光学系统具有短的投影距离和紧凑的结构，并且允许倾斜投影。投影光学系统将来自用于形成原始图像的图像形成元件的光通量投影到与从原始图像的中心向中心移动的光束的主光线的中心主光线倾斜的投影面上终于形成了形象。该系统包括多个具有曲率的反射表面。另外，投影光学系统满足预定的表达式（1）。

2. 发明授权

US06991338B2 Projection optical system, projection type image display apparatus, and image display system 失效
标题翻译：投影光学系统，投影型图像显示装置和图像显示系统
公开(公告)号：US06991338B2
公开(公告)日：2006-01-31
申请号：US10630407
申请日：2003-07-30
申请人： Toshihiro Sunaga , Katsumi Kurematsu , Takayuki Ishii , Yoshiaki Kurioka , Sawako Chatani
发明人： Toshihiro Sunaga , Katsumi Kurematsu , Takayuki Ishii , Yoshiaki Kurioka , Sawako Chatani
IPC分类号： G03B21/22 , G03B21/26 , G03B21/28 , G02B27/14 , G02B5/10
CPC分类号： G02B17/0852 , G02B17/0663 , G02B17/0848 , H04N5/74 , H04N5/7408 , H04N5/7416
摘要： A projection optical system having a plurality of reflecting surfaces is disclosed in which a sufficiently large angle is provided between an incident side reference axis and an emerging side reference axis while tilt angles of the respective reflecting surfaces can remain small. The projection optical system projects luminous flux from an image forming element which forms an original image onto a projection surface. The incident side reference axis and the emerging side reference axis of the projection optical system are oblique to each other. The projection optical system has a plurality of reflecting surfaces each having a curvature. The reflecting surfaces are arranged such that the reference axis has at least one intersection in the projection optical system.
摘要翻译：公开了一种具有多个反射面的投影光学系统，其中在入射侧基准轴和出射侧基准轴之间设置足够大的角度，同时各反射面的倾斜角度保持较小。投影光学系统将形成原始图像的图像形成元件的光通量投影到投影面上。投影光学系统的入射侧基准轴和出射侧基准轴彼此倾斜。投影光学系统具有各自具有曲率的多个反射面。反射面被布置成使得参考轴在投影光学系统中具有至少一个交叉点。

3. 发明授权

US06984044B2 Projection optical system, projection type image display apparatus, and image display system 有权
标题翻译：投影光学系统，投影型图像显示装置和图像显示系统
公开(公告)号：US06984044B2
公开(公告)日：2006-01-10
申请号：US10630483
申请日：2003-07-30
申请人： Yoshiaki Kurioka , Katsumi Kurematsu , Takayuki Ishii , Toshihiro Sunaga , Sawako Chatani
发明人： Yoshiaki Kurioka , Katsumi Kurematsu , Takayuki Ishii , Toshihiro Sunaga , Sawako Chatani
IPC分类号： G03B21/28 , G03B21/22 , G03B21/26 , G03B5/10
CPC分类号： G02B17/0852 , G02B5/205 , G02B17/0832 , G02B17/0848
摘要： A projection optical system which can project a bright image with less distortion and a small projection distance without causing aberration or an increase in size of reflective surfaces is disclosed. The projection optical system projects luminous flux from an original image onto a projection surface which is oblique to a central principal ray which is a principal ray of luminous flux traveling from the center of the original image to the center of a projected image. The projection optical system comprises a refractive optical system which includes a plurality of refractive optical elements through which the luminous flux from the original image passes through, and a reflective optical system which includes a plurality of reflective surfaces each having an optical power and guides the luminous flux emerging from the refractive optical system to the projection surface.
摘要翻译：公开了一种投影光学系统，其能够以较小的失真和较小的投影距离投影明亮的图像，而不引起像差或反射表面的尺寸的增加。投影光学系统将来自原始图像的光通量投影到与作为从原始图像的中心传播到投影图像的中心的光束的主光线的中心主光线倾斜的投影表面上。投影光学系统包括折射光学系统，其包括多个折射光学元件，来自原始图像的光束穿过该折射光学元件，以及反射光学系统，其包括多个反射表面，每个反射表面具有光学功率并引导发光从折射光学系统到投影面的光通量。

4. 发明授权

US07133217B2 Image-taking optical system and image input apparatus 有权
公开(公告)号：US07133217B2
公开(公告)日：2006-11-07
申请号：US10235520
申请日：2002-09-04
申请人： Sawako Chatani , Toshihiro Sunaga
发明人： Sawako Chatani , Toshihiro Sunaga
IPC分类号： G02B17/00 , G02B27/02 , G03B21/28
CPC分类号： G03B21/56
摘要： An image-taking optical system according to the present invention for forming an image of a two-dimensional object on an image-taking surface comprises a plurality of reflecting surfaces which reflect light from the two-dimensional object sequentially and guides the light to the image-taking surface, and a reference axis passing through the center of the pupil of the image-taking system and the center of the optical image formed on the image-taking surface is inclined with respect to the normal line of the two-dimensional object.The present invention provides an image-taking optical system which achieves a reduction in size, ensures a ratio of an amount of peripheral light, allows correction of trapezoidal distortion of a formed image, and is suitable for oblique image-taking.

5. 发明授权

US06994442B2 Display apparatus 失效
公开(公告)号：US06994442B2
公开(公告)日：2006-02-07
申请号：US11079272
申请日：2005-03-15
申请人： Katsumi Kurematsu , Toshihiro Sunaga
发明人： Katsumi Kurematsu , Toshihiro Sunaga
IPC分类号： G02B5/10
CPC分类号： G02B17/0663 , G03B21/10
摘要： It is an object of this invention to provide a high-quality, high-precision, large-screen display apparatus which can obtain a sufficient light beam reception angle with respect to an image display unit, improve imaging performance, and obtain a thin structure. There is provided a display apparatus for obliquely projecting light from an image display unit onto a projection optical system, wherein the projection optical system includes a plurality of aspherical curved mirrors and projects an image without distortion (1.2% or less).

6. 发明申请

US20050157412A1 Display apparatus 失效
公开(公告)号：US20050157412A1
公开(公告)日：2005-07-21
申请号：US11079272
申请日：2005-03-15
申请人： Katsumi Kurematsu , Toshihiro Sunaga
发明人： Katsumi Kurematsu , Toshihiro Sunaga
IPC分类号： G02B17/06 , G03B21/10 , H04N5/74 , G03B21/00
CPC分类号： G02B17/0663 , G03B21/10
摘要： It is an object of this invention to provide a high-quality, high-precision, large-screen display apparatus which can obtain a sufficient light beam reception angle with respect to an image display unit, improve imaging performance, and obtain a thin structure. There is provided a display apparatus for obliquely projecting light from an image display unit onto a projection optical system, wherein the projection optical system includes a plurality of aspherical curved mirrors and projects an image without distortion (1.2% or less).

7. 发明授权

US06883922B2 Display apparatus 失效
标题翻译：显示装置
公开(公告)号：US06883922B2
公开(公告)日：2005-04-26
申请号：US09924430
申请日：2001-08-08
申请人： Katsumi Kurematsu , Toshihiro Sunaga
发明人： Katsumi Kurematsu , Toshihiro Sunaga
IPC分类号： G02B17/06 , G03B21/10 , H04N5/74 , G02B5/10
CPC分类号： G02B17/0663 , G03B21/10
摘要： It is an object of this invention to provide a high-quality, high-precision, large-screen display apparatus which can obtain a sufficient light beam reception angle with respect to an image display unit, improve imaging performance, and obtain a thin structure. There is provided a display apparatus for obliquely projecting light from an image display unit onto a projection optical system, wherein the projection optical system includes a plurality of aspherical curved mirrors and projects an image without distortion (1.2% or less).
摘要翻译：本发明的目的是提供一种能够获得相对于图像显示单元的足够的光束接收角度的高质量，高精度的大屏幕显示装置，提高成像性能，并获得薄的结构。提供了一种用于将来自图像显示单元的光倾斜投影到投影光学系统上的显示装置，其中投影光学系统包括多个非球面曲面镜，并且投影图像而没有变形（1.2％或更小）。

8. 发明授权

US06894842B2 Projection optical system, image display apparatus, and image display system 失效
标题翻译：投影光学系统，图像显示装置和图像显示系统
公开(公告)号：US06894842B2
公开(公告)日：2005-05-17
申请号：US10196304
申请日：2002-07-16
申请人： Katsumi Kurematsu , Toshihiro Sunaga
发明人： Katsumi Kurematsu , Toshihiro Sunaga
IPC分类号： G02B17/00 , G02B27/18 , G03B21/00 , H04N5/74 , G02B3/00 , G02B27/14
CPC分类号： H04N5/7408 , H04N7/0122
摘要： The invention discloses a projection optical system for projecting an original image onto a projection surface. The projection optical system comprises a plurality of aspherical curved mirrors, which reflects image light from the original image in sequence and then forms an image on the projection surface. The projection optical system forms a projected image on the projection surface at an aspect ratio different from that of the original image by a combination of reflective actions of the image light on the aspherical surfaces of the plurality of aspherical curved mirrors. Even in a projection optical system having a wide angle of view and a short distance of projection, it is possible to implement a projection optical system that is capable of suppressing distortion and performing an optical aspect conversion.
摘要翻译：本发明公开了一种用于将原始图像投影到投影表面上的投影光学系统。投影光学系统包括多个非球面曲面镜，其依次从原始图像反射图像光，然后在投影表面上形成图像。投影光学系统通过图像光在多个非球面曲面镜的非球面上的反射动作的组合，以与原始图像不同的纵横比在投影面上形成投影图像。即使在具有宽视角和投影距离的投影光学系统中，也可以实现能够抑制失真并进行光学方面变换的投影光学系统。

9. 发明授权

US08842380B2 Imaging lens and imaging apparatus 有权
标题翻译：成像镜头和成像设备
公开(公告)号：US08842380B2
公开(公告)日：2014-09-23
申请号：US13482625
申请日：2012-05-29
申请人： Toshihiro Sunaga
发明人： Toshihiro Sunaga
IPC分类号： G02B9/12 , G02B9/34 , G02B13/04 , G03B17/46 , G03B17/14
CPC分类号： G03B17/46 , G02B13/04 , G03B17/14
摘要： An imaging lens includes: a first lens group; a second lens group having positive refractive power; and a third lens group having negative refractive power, which are arranged in order from an object side, wherein the first lens group includes a former lens group having a negative lens in a most object side, a diaphragm, and a rear lens group, and wherein, when focusing is performed, the second lens group is moved in the optical axis direction.
摘要翻译：成像透镜包括：第一透镜组; 具有正屈光力的第二透镜组; 以及具有负屈光力的第三透镜组，其从物体侧依次布置，其中第一透镜组包括在最物体侧具有负透镜的前透镜组，隔膜和后透镜组，以及其中，当进行聚焦时，第二透镜组沿光轴方向移动。

10. 发明申请

US20130033768A1 IMAGING LENS AND IMAGING APPARATUS 有权
标题翻译：成像镜头和成像设备
公开(公告)号：US20130033768A1
公开(公告)日：2013-02-07
申请号：US13533358
申请日：2012-06-26
申请人： Toshihiro Sunaga , Motoyuki Otake , Masaharu Hosoi
发明人： Toshihiro Sunaga , Motoyuki Otake , Masaharu Hosoi
IPC分类号： G02B9/18
CPC分类号： G02B13/06 , G02B9/64 , G02B27/646
摘要： Provided is an imaging lens including a fixed first lens group having a positive refractive power and including a plurality of lenses, a second lens group serving as a focus group and including a negative lens, and a third lens group having a positive refractive power that are arranged sequentially from an object side to an image side. A stop is disposed between predetermined lenses of the first lens group, and, on an assumption that a lens group located closer to the object side than the stop of the first lens group is a 1ath lens group and a lens group located closer to the image side than the stop is a 1bth lens group, Condition Equation (1) below is satisfied: 0.7
摘要翻译：本发明提供一种成像透镜，包括具有正折光力并具有多个透镜的固定第一透镜组，作为聚焦组的第二透镜组并且包括负透镜，以及具有正屈光力的第三透镜组从物体侧顺序地排列到像侧。在第一透镜组的预定透镜之间设置有止动件，并且假设位于比第一透镜组的停止更靠近物体侧的透镜组是1ath透镜组和位于更靠近图像的透镜组（1）满足以下条件式（1）：0.7

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