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1. 发明申请

US20100283976A1 Projection-Type Image Display Apparatus 有权
标题翻译：投影式图像显示装置
公开(公告)号：US20100283976A1
公开(公告)日：2010-11-11
申请号：US12840651
申请日：2010-07-21
申请人： Takanori HISADA , Koji Hirata , Masahiko Yatsu
发明人： Takanori HISADA , Koji Hirata , Masahiko Yatsu
IPC分类号： G03B21/28
CPC分类号： G03B21/28 , G03B21/147
摘要： A projection-type image display apparatus for projecting an image, enlargedly, onto a projection surface, comprises: an image display element; a lens group, being disposed behind the image display element, comprising therein, a front lens group made up with a plural number of lenses, including, at least, a refractive lens, and a rear lens group made up with a plural number of lenses, including, at least, a lens having a free curved surface configuration and being rotationally asymmetric, thereby emitting an image displayed on the image display element; a reflection mirror for reflecting the light from the lens group, thereby projection onto the projection surface, obliquely; and a movement member for moving the plural number of lenses of the rear lens group.
摘要翻译：一种用于将图像放大地投影到投影表面上的投影型图像显示装置，包括：图像显示元件; 设置在图像显示元件后面的透镜组，其中包括由多个透镜构成的前透镜组，至少包括折射透镜和由多个透镜构成的后透镜组至少包括具有自由曲面构造并且旋转非对称的透镜，从而发射显示在图像显示元件上的图像; 用于反射来自透镜组的光的反射镜，从而倾斜地突出到投影表面上; 以及用于移动后透镜组的多个透镜的移动部件。

2. 发明申请

US20130162961A1 PROJECTION TYPE DISPLAY APPARATUS 有权
标题翻译：投影式显示装置
公开(公告)号：US20130162961A1
公开(公告)日：2013-06-27
申请号：US13773677
申请日：2013-02-22
申请人： Koji HIRATA , Masahiko YATSU , Takanori HISADA
发明人： Koji HIRATA , Masahiko YATSU , Takanori HISADA
IPC分类号： G03B21/14
CPC分类号： G03B21/28
摘要： In a projection type display apparatus for enabling to display an image, by projecting an image on an image display element(s), enlargedly, upon a nearly horizontal surface, such as, a table, a reflection mirror for reflecting a light from a light source is so disposed that an optical axis of the light source is nearly perpendicular to an optical axis of a lens group having a plural number of lens elements, which are disposed symmetric with respect to the optical axis.
摘要翻译：在能够显示图像的投影型显示装置中，通过在诸如桌子的近似水平的表面上放大地在图像显示元件上投影图像，用于反射来自光的光的反射镜光源被设置为使得光源的光轴几乎垂直于具有相对于光轴对称设置的多个透镜元件的透镜组的光轴。

3. 发明申请

US20090237621A1 Projection Image Display Apparatus and Projection Optical Unit to be Used Therein 有权
标题翻译：投影图像显示装置和投影光学单元
公开(公告)号：US20090237621A1
公开(公告)日：2009-09-24
申请号：US12475656
申请日：2009-06-01
申请人： Takanori HISADA , Masahiko YATSU , Koji HIRATA
发明人： Takanori HISADA , Masahiko YATSU , Koji HIRATA
IPC分类号： G03B21/28
CPC分类号： G03B21/10 , G02B17/0816 , G03B21/28
摘要： In a projection type image display apparatus, for enlarging an image on a image display apparatus 1 by means of a projection lens 2, thereby projecting the enlarged image onto a screen 6, obliquely, being inclined thereto, between the projection lens 2 and a rear-surface mirror 5, there are disposed free shaped surface mirrors 3 and 4, each having a free shaped surface for compensating a trapezoidal distortion due to oblique projection of the enlarged image. The surface configuration of the free shaped surface mirror is so shaped as to satisfy a following equation: |L1−L2|>1.4·Dv if assuming that a distance for a light beam of an upper end of the enlarged image to reach the screen after being reflected upon a free shaped surface is “L1”, a distance for a light beam of a lower end of the enlarged image to reach the screen after being reflected upon the free shaped surface is “L2”, and a distance from an upper end of an image on the screen to a lower end thereof is “Dv”.
摘要翻译：在投影型图像显示装置中，为了通过投影透镜2放大图像显示装置1上的图像，从而将放大图像倾斜地投影到屏幕6上，在投影透镜2和后方表面镜5设置有自由形状的表面镜3和4，每个具有自由形状的表面，用于补偿由于放大图像的倾斜投影引起的梯形失真。自由形状的表面镜的表面形状被形成为满足以下等式：<？in-line-formula description =“In-line formula”end =“lead”？> | L1-L2 |> 1.4.Dv 如果假设放大图像的上端的光束的距离在自由形状的反射之后到达屏幕，则<？in-line-formula description =“In-line Formulas”end =“tail”？> 表面为“L1”，放大图像的下端的光束在被自由形状的表面反射之后到达屏幕的距离为“L2”，并且距离屏幕上的图像的上端的距离到其下端是“Dv”。

4. 发明申请

US20090059185A1 Projection Optical Unit, Projection-Type Image Displaying Apparatus and Projection-Type Image Displaying System 有权
标题翻译：投影光学单元，投影型图像显示装置和投影型图像显示系统
公开(公告)号：US20090059185A1
公开(公告)日：2009-03-05
申请号：US12145630
申请日：2008-06-25
申请人： Takanori HISADA , Koji Hirata , Masahiko Yatsu
发明人： Takanori HISADA , Koji Hirata , Masahiko Yatsu
IPC分类号： G03B21/28
CPC分类号： G03B21/28
摘要： A projection optical unit for obliquely projecting an image displayed on an image display element upon a projection surface, enlargedly, comprises: a lens group, being disposed neighboring to the image display element, and including a plural number of projection lenses therein; and a reflection mirror for reflecting lights emitting from the lens group, to be projected onto the projection surface, obliquely, wherein assuming that a light beam, emitting from a center of the display screen of the image display element, passing through a center of an entrance pupil of the lens group, and entering into a screen center on the projection surface, is a screen center light beam, then the screen center light beam is incident upon the projection surface, obliquely, with respect to a normal line thereon, the lens group comprises a front lens group including a plural number of refraction lenses, being disposed thereafter directing from the image display element to the projection surface and having rotationally symmetric surface configurations, and a rear lens group including a refraction lens having a negative power and having a rotationally symmetric surface configuration and a plural number of lenses having rotationally asymmetric free curved surface configurations, and within the rear lens group, the lens having the negative power is movable in an optical axis direction, and at least one pieces among the lenses having the free curved surface configurations is movable into directions, including the optical axis and direction perpendicular thereto, within a surface including the optical axis and the normal line on the screen.
摘要翻译：一种用于将显示在图像显示元件上的图像倾斜投影在投影表面上的投影光学单元，其放大地包括：与图像显示元件相邻设置并且在其中包括多个投影透镜的透镜组; 以及反射镜，用于反射从透镜组发射的光，以倾斜方式投影到投影表面上，其中假设从图像显示元件的显示屏的中心发射的光束经过图像显示元件的中心透镜组的入射光瞳，并且进入投影面上的屏幕中心，是屏幕中心光束，则屏幕中心光束相对于其上的法线倾斜入射在投影表面上，透镜组包括多个折射透镜的前透镜组，其后从图像显示元件引导到投影表面并具有旋转对称的表面结构，以及包括具有负光焦度的折射透镜的后透镜组，旋转对称表面构造和多个具有旋转非对称自由曲面构造的透镜，在后透镜组内，具有负光焦度的透镜可沿光轴方向移动，并且具有自由曲面构造的透镜中的至少一个可移动到包括光轴和垂直于其的方向的方向内表面包括屏幕上的光轴和法线。

5. 发明申请

US20110205499A1 PROJECTING OPTICAL UNIT AND PROJECTING TYPE IMAGE DISPLAY APPARATUS THEREWITH 有权
标题翻译：投影光学单元和投影类型图像显示设备
公开(公告)号：US20110205499A1
公开(公告)日：2011-08-25
申请号：US13099784
申请日：2011-05-03
申请人： Hiroki YOSHIKAWA , Takanori HISADA , Tetsu OHISHI , Koji HIRATA , Naoyuki OGURA
发明人： Hiroki YOSHIKAWA , Takanori HISADA , Tetsu OHISHI , Koji HIRATA , Naoyuki OGURA
IPC分类号： G03B21/26 , G03B21/28
CPC分类号： G02B17/0852
摘要： A projection image display device is disclosed in which a trapezoidal distortion and/or aberration are restrained when an image is enlarged and projected obliquely onto a screen. An image generator is connected to an optical system base in such a manner that at least an inclination thereof (on an axis parallel to X axis) with respect to a vertical line and a distance thereof in forward and backward direction (Z axis direction) can be adjusted by an adjusting mechanism. Further, a projecting lens 2 as a first optical system and a free-form curved surface mirror as a second optical system are fixed to the optical system base. The free-form curved surface mirror is rotatable (on an rotary axis parallel to X axis) with respect to the vertical line at a substantial center of the free-form curved surface mirror.
摘要翻译：公开了一种投影图像显示装置，其中当图像被放大并倾斜地投影到屏幕上时，限制了梯形失真和/或像差。图像发生器以这样的方式连接到光学系统基座，使得至少其相对于垂直线（在X轴上平行的轴线）的倾斜度及其在前后方向（Z轴方向）上的距离可以通过调整机构进行调整。此外，作为第一光学系统的投影透镜2和作为第二光学系统的自由曲面镜被固定到光学系统基座。自由曲面镜在相对于自由曲面镜的大致中心处的垂直线是可旋转的（在平行于X轴的旋转轴上）。

6. 发明申请

US20090290133A1 PROJECTING OPTICAL UNIT AND PROJECTING TYPE IMAGE DISPLAY APPARATUS THEREWITH 有权
标题翻译：投影光学单元和投影类型图像显示设备
公开(公告)号：US20090290133A1
公开(公告)日：2009-11-26
申请号：US12536163
申请日：2009-08-05
申请人： Hiroki YOSHIKAWA , Takanori HISADA , Tetsu OHISHI , Koji HIRATA , Naoyuki OGURA
发明人： Hiroki YOSHIKAWA , Takanori HISADA , Tetsu OHISHI , Koji HIRATA , Naoyuki OGURA
IPC分类号： G03B21/28
CPC分类号： G02B17/0852
摘要： A projection image display device is disclosed in which a trapezoidal distortion and/or aberration are restrained when an image is enlarged and projected obliquely onto a screen. An image generator is connected to an optical system base in such a manner that at least an inclination thereof (on an axis parallel to X axis) with respect to a vertical line and a distance thereof in forward and backward direction (Z axis direction) can be adjusted by an adjusting mechanism. Further, a projecting lens 2 as a first optical system and a free-form curved surface mirror as a second optical system are fixed to the optical system base. The free-form curved surface mirror is rotatable (on an rotary axis parallel to X axis) with respect to the vertical line at a substantial center of the free-form curved surface mirror.
摘要翻译：公开了一种投影图像显示装置，其中当图像被放大并倾斜地投影到屏幕上时，限制了梯形失真和/或像差。图像发生器以这样的方式连接到光学系统基座，使得至少其相对于垂直线（在X轴上平行的轴线）的倾斜度及其在前后方向（Z轴方向）上的距离可以通过调整机构进行调整。此外，作为第一光学系统的投影透镜2和作为第二光学系统的自由曲面镜被固定到光学系统基座。自由曲面镜在相对于自由曲面镜的大致中心处的垂直线是可旋转的（在平行于X轴的旋转轴上）。

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