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公开(公告)号：US08313199B2
公开(公告)日：2012-11-20
申请号：US11871438
申请日：2007-10-12
Applicant: Koji Hirata , Masahiko Yatsu , Takanori Hisada , Masayuki Ohki
Inventor： Koji Hirata , Masahiko Yatsu , Takanori Hisada , Masayuki Ohki
Abstract: A projection display system comprising a projection display unit including a light source, an image display element, a lighting optical system irradiating a beam of light on the image display element, and a projection optical system projecting an image light from the image display element toward a screen. The projection optical system including a lens group composed of a plurality of lens elements arranged in order toward the screen from the image display element and symmetrically with respect to an optical axis, and a reflecting mirror shaped to be axial-asymmetrical with respect to the optical axis. The projection display system further comprises a screen 5. The projection display unit projects the image light onto a projection plane of the screen to display an image.
Abstract translation: 一种投影显示系统，包括：投影显示单元，包括光源，图像显示元件，照射在所述图像显示元件上的光束的照明光学系统;以及投影光学系统，将图像光从所述图像显示元件投射到 屏幕。 投影光学系统包括由从图像显示元件顺序排列并相对于光轴对称布置的多个透镜元件的透镜组以及相对于光学轴向不对称成形的反射镜 轴。 投影显示系统还包括屏幕5.投影显示单元将图像光投影到屏幕的投影平面上以显示图像。
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2.发明申请PROJECTION OPTICAL UNIT, PROJECTION-TYPE IMAGE DISPLAYING APPARATUS AND PROJECTION-TYPE IMAGE DISPLAYING SYSTEM 有权投影光学单元，投影型图像显示设备和投影类型图像显示系统公开(公告)号：US20100277703A1
公开(公告)日：2010-11-04
申请号：US12838915
申请日：2010-07-19
Applicant: Takanori Hisada , Koji Hirata , Masahiko Yatsu
Inventor： Takanori Hisada , Koji Hirata , Masahiko Yatsu
IPC: G03B21/28
CPC classification number: G03B21/28
Abstract: A projection optical unit for a projection display apparatus, which displays an image upon a projection surface, obliquely, includes a front lens group disposed in a direction from an image display element to a projection surface, a rear lens group, and a reflection mirror formed so that a curvature of a portion for reflecting a light beam incident upon a lower end portion of the projection surface is larger than a curvature of a portion for reflecting a light beam incident upon an upper end of the projection surface. An optical axis of the front lens group and the rear lens group is more inclined with respect to a direction of the portion of the reflection mirror for reflecting the light beam incident upon the lower end portion of the projection surface than a normal line direction of the image display element.
Abstract translation: 一种用于投影显示设备的投影光学单元，其在投影表面上倾斜地显示图像，包括沿从图像显示元件到投影表面的方向设置的前透镜组，后透镜组和形成的反射镜 使得入射到投影表面的下端部分上的反射光束的部分的曲率大于用于反射入射在投影表面的上端的光束的部分的曲率。 前透镜组和后透镜组的光轴相对于反射镜的部分的方向更倾斜，用于反射入射在投影表面的下端部上的光束，而不是垂直方向 图像显示元件。
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公开(公告)号：US07766488B2
公开(公告)日：2010-08-03
申请号：US11763465
申请日：2007-06-15
Applicant: Koji Hirata , Takanori Hisada , Masahiko Yatsu
Inventor： Koji Hirata , Takanori Hisada , Masahiko Yatsu
CPC classification number: G03B21/28 , G02B17/0852 , G03B21/145 , H04N9/317
Abstract: 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, having a positive power and being rotationally symmetric in a surface configuration thereof, 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 the 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; a first mounting base, on which the rear lens group is mounted; and a rod member, which is provided on the mounting base for moving the mounting base.
Abstract translation: 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，至少包括具有正光焦度并在其表面形状中旋转对称的折射透镜 以及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; 第一安装基座，其上安装后透镜组; 以及杆构件，其设置在安装基座上用于移动安装基座。
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4.发明授权Projection image display apparatus and projection optical unit to be used therein 有权其中使用的投影图像显示装置和投影光学单元公开(公告)号：US07553031B2
公开(公告)日：2009-06-30
申请号：US11200353
申请日：2005-08-08
Applicant: Takanori Hisada , Masahiko Yatsu , Koji Hirata
Inventor： Takanori Hisada , Masahiko Yatsu , Koji Hirata
CPC classification number: G03B21/10 , G02B17/0816 , G03B21/28
Abstract: 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”.
Abstract translation: 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”。
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公开(公告)号：US09022581B2
公开(公告)日：2015-05-05
申请号：US13676587
申请日：2012-11-14
Applicant: Koji Hirata , Masahiko Yatsu , Takanori Hisada , Masayuki Ohki
Inventor： Koji Hirata , Masahiko Yatsu , Takanori Hisada , Masayuki Ohki
Abstract: A projection display system includes a projection display unit and a member in a form of one of a windable screen, a white board and a notice board. The projection display unit projects an image light onto a projection plane of the member to display an image thereon. The projection display unit includes a light source, an image display element, a lighting optical system irradiating a beam of light from the light source on the image display element, and a projection optical system projecting the image light from the image display element toward the member. The projection optical system includes, in order toward the member from the image display element, a front lens group, and a reflecting mirror shaped to be axial-asymmetrical with respect to the optical axis.
Abstract translation: 投影显示系统包括投影显示单元和可卷绕屏幕，白板和通知板之一的形式的构件。 投影显示单元将图像光投射到构件的投影平面上以在其上显示图像。 投影显示单元包括光源，图像显示元件，照射来自光源的光束的照明光学系统在图像显示元件上，以及投影光学系统，其将来自图像显示元件的图像光朝向该元件投影 。 投影光学系统为了朝向来自图像显示元件的构件，包括前透镜组和反射镜，其被成形为相对于光轴轴向不对称。
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Patent Agency Ranking
公开(公告)号：US20110299047A1
公开(公告)日：2011-12-08
申请号：US13213626
申请日：2011-08-19
Applicant: Koji Hirata , Takanori Hisada , Masahiko Yatsu
Inventor： Koji Hirata , Takanori Hisada , Masahiko Yatsu
IPC: G03B3/00
CPC classification number: G03B21/28 , G02B17/0852 , G03B21/145 , H04N9/317
Abstract: A projection type image display apparatus includes an image display element, a projection unit including a first lens group and a second lens group formed with a plural number of lenses, a reflection mirror configured to reflect light emitted from the second lens group thereon after the light passes through the first lens group so as to project the light on a screen obliquely, and a mechanism configured to enable movement of at least one lens of the second lens group in a direction of an optical axis. The first lens group is fixed with respect to a bottom portion of the mechanism and is configured to compensate for an aberration of an optical system thereof. The second lens group is configured to enable movement of at least one lens of the second lens group with respect to the first lens group and the bottom portion of the mechanism.
Abstract translation: 投影型图像显示装置包括图像显示元件，包括第一透镜组的投影单元和形成有多个透镜的第二透镜组，反射镜，被配置为在光之后反射从第二透镜组发射的光 穿过第一透镜组以将光投射到屏幕上倾斜，以及机构，其构造成使得能够沿着光轴的方向移动第二透镜组的至少一个透镜。 第一透镜组相对于机构的底部固定并且被配置为补偿其光学系统的像差。 第二透镜组被配置为能够使第二透镜组的至少一个透镜相对于第一透镜组和机构的底部部分移动。
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公开(公告)号：US08020999B2
公开(公告)日：2011-09-20
申请号：US12825801
申请日：2010-06-29
Applicant: Koji Hirata , Takanori Hisada , Masahiko Yatsu
Inventor： Koji Hirata , Takanori Hisada , Masahiko Yatsu
CPC classification number: G03B21/28 , G02B17/0852 , G03B21/145 , H04N9/317
Abstract: A projection type image display apparatus includes an image display element, and a projection optical unit, which is configured to project an image displayed on the image display element, enlargedly, upon a screen. The projection optical unit includes a lens group, which is configured to compensate an distortion on an image surface on the screen, a mirror for compensating a trapezoidal distortion on the screen. The mirror reflects lights emitted from the lens group, so as to project upon the screen obliquely.
Abstract translation: 投影型图像显示装置包括图像显示元件和投影光学单元，其被配置为在屏幕上放大地投影显示在图像显示元件上的图像。 投影光学单元包括被配置为补偿屏幕上的图像表面上的失真的透镜组，用于补偿屏幕上的梯形失真的反射镜。 镜子反射从镜头组发出的光线，以便倾斜地投影在屏幕上。
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公开(公告)号：US08002417B2
公开(公告)日：2011-08-23
申请号：US12840651
申请日：2010-07-21
Applicant: Takanori Hisada , Koji Hirata , Masahiko Yatsu
Inventor： Takanori Hisada , Koji Hirata , Masahiko Yatsu
CPC classification number: G03B21/28 , G03B21/147
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20110128472A1
公开(公告)日：2011-06-02
申请号：US13021101
申请日：2011-02-04
Applicant: Koji Hirata , Masahiko Yatsu , Takanori Hisada , Hidehiro Ikeda
Inventor： Koji Hirata , Masahiko Yatsu , Takanori Hisada , Hidehiro Ikeda
IPC: G02F1/1335
CPC classification number: G03B21/62 , G02F1/133526 , G02F1/133604 , G02F1/133605 , G02F1/133611 , G02F1/13362 , G02F1/13471 , G02F2001/133607 , G02F2001/133622 , G03B21/208 , G03B21/26 , G03B21/28 , H04N9/3155
Abstract: A display apparatus includes a light source which is configured to emit a light, a first light modulation unit which is configured modulate the light emitted from said light source, a first drive unit which is configured to drive said first light modulation unit, a projection unit, which is configured to project the light from said first light modulation unit enlargedly, a second light modulation unit, which is configured to modulate the light emitted from said projection unit so as to be emitted to an observer side, a second drive unit which is configured to drive said second light modulation unit, and an optical direction conversion unit, which is configured to convert the light from said projection unit so that the light is incident upon an incident surface of said second light modulation unit in a direction approximately perpendicular thereto.
Abstract translation: 一种显示装置，包括被配置为发光的光源，被配置为调制从所述光源发射的光的第一光调制单元，被配置为驱动所述第一光调制单元的第一驱动单元，投影单元 其被配置为从所述第一调光单元放大的光投射第二光调制单元，其被配置为调制从所述投影单元发射的光以被发射到观察者侧;第二驱动单元，其是 被配置为驱动所述第二光调制单元，以及光学方向转换单元，其被配置为转换来自所述投影单元的光，使得光在与所述第二光调制单元的大致垂直的方向上入射到所述第二调光单元的入射表面。
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10.发明授权Projection optical unit, projection-type image displaying apparatus and projection-type image displaying system 有权投影光学单元，投影型图像显示装置和投影型图像显示系统公开(公告)号：US07857462B2
公开(公告)日：2010-12-28
申请号：US12838915
申请日：2010-07-19
Applicant: Takanori Hisada , Koji Hirata , Masahiko Yatsu
Inventor： Takanori Hisada , Koji Hirata , Masahiko Yatsu
CPC classification number: G03B21/28
Abstract: A projection optical unit for a projection display apparatus, which displays an image upon a projection surface, obliquely, includes a front lens group disposed in a direction from an image display element to a projection surface, a rear lens group, and a reflection mirror formed so that a curvature of a portion for reflecting a light beam incident upon a lower end portion of the projection surface is larger than a curvature of a portion for reflecting a light beam incident upon an upper end of the projection surface. An optical axis of the front lens group and the rear lens group is more inclined with respect to a direction of the portion of the reflection mirror for reflecting the light beam incident upon the lower end portion of the projection surface than a normal line direction of the image display element.
Abstract translation: 一种用于投影显示设备的投影光学单元，其在投影表面上倾斜地显示图像，包括沿从图像显示元件到投影表面的方向设置的前透镜组，后透镜组和形成的反射镜 使得入射到投影表面的下端部分上的反射光束的部分的曲率大于用于反射入射在投影表面的上端的光束的部分的曲率。 前透镜组和后透镜组的光轴相对于反射镜的部分的方向更倾斜，用于反射入射在投影表面的下端部上的光束，而不是垂直方向 图像显示元件。
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