公开(公告)号：US20130070333A1

公开(公告)日：2013-03-21

申请号：US13595026

申请日：2012-08-27

申请人： Tatsuya TAKAHASHI ,  Kazuhiro Fujita ,  Issei Abe

发明人： Tatsuya TAKAHASHI ,  Kazuhiro Fujita ,  Issei Abe

IPC分类号： G02B17/08 ,  G02B3/00

CPC分类号： G02B17/0852 ,  G02B17/08

摘要： Disclosed is a projection optical system including a first optical system configured to form a first image conjugate to an object and have an optical axis and a second optical system configured to project a second image conjugate to the first image onto a surface to be projected on, wherein the first image satisfies a condition of: Im×Tr≦1.70 wherein Im denotes a length of the first image in a direction of an optical axis of the first optical system, normalized by a focal length of the first optical system, and Tr denotes a throw ratio for the projection optical system.

摘要翻译： 公开了一种投影光学系统，包括：第一光学系统，被配置为与对象形成第一图像共轭并具有光轴;以及第二光学系统，被配置为将第二图像共轭物投影到要投影的表面上， 其中所述第一图像满足以下条件：Im×Tr＆nlE; 1.70其中Im表示第一光学系统的光轴方向上的第一图像的长度，由第一光学系统的焦距归一化，Tr表示 投影光学系统的投掷比。

公开(公告)号：US08284462B2

公开(公告)日：2012-10-09

申请号：US12508174

申请日：2009-07-23

申请人： Issei Abe ,  Kiichiro Nishina ,  Masahiro Itoh ,  Kazuhiro Fujita

发明人： Issei Abe ,  Kiichiro Nishina ,  Masahiro Itoh ,  Kazuhiro Fujita

IPC分类号： H04N1/04

CPC分类号： H04N1/1013 ,  G02B13/24 ,  G02B17/08 ,  H04N1/00525 ,  H04N1/0303 ,  H04N1/0305 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/0091 ,  H04N2201/02495

摘要： Disclosed is an image reading device configured to read information of an object, including an imaging optical system configured to image an image of an object and an image-capturing device configured to image-capture at least a portion of the image imaged by the imaging optical system, wherein the imaging optical system includes a first optical system configured to image an intermediate image of the object and a second optical system configured to image the imaged image of the intermediate image.

摘要翻译： 公开了一种图像读取装置，被配置为读取对象的信息，包括被配置为对物体的图像进行成像的成像光学系统和被配置为对由成像光学成像的图像的至少一部分进行图像捕获的图像捕获装置 系统，其中所述成像光学系统包括被配置为对所述对象的中间图像进行成像的第一光学系统和被配置为对所述中间图像的成像图像成像的第二光学系统。

公开(公告)号：US20120092628A1

公开(公告)日：2012-04-19

申请号：US13236749

申请日：2011-09-20

申请人： Tatsuya TAKAHASHI ,  Kazuhiro Fujita ,  Issei Abe

发明人： Tatsuya TAKAHASHI ,  Kazuhiro Fujita ,  Issei Abe

IPC分类号： G03B21/14

CPC分类号： G03B21/14 ,  G03B21/28 ,  H04N9/3102

摘要： A projection optical system configured to project an image onto a projection surface includes a first optical system including at least one dioptric system and having positive power as a whole; a second optical system including a reflection region and a transmission region; and a third optical system including at least one reflecting surface having power, and having positive power as a whole, wherein light entering the projection optical system passes through the first optical system to have a path thereof bent by the reflection region of the second optical system to be incident on the third optical system, and the light incident on the third optical system has the path thereof bent by the third optical system to pass through the transmission region of the second optical system to be incident on the projection surface.

摘要翻译： 配置为将图像投影到投影表面上的投影光学系统包括：第一光学系统，包括至少一个折射系统，并且整体具有正的光焦度; 包括反射区域和透射区域的第二光学系统; 以及第三光学系统，包括具有动力的至少一个反射面，并且整体具有正的光焦度，其中进入所述投影光学系统的光通过所述第一光学系统以具有由所述第二光学系统的反射区域弯曲的路径 入射在第三光学系统上，并且入射到第三光学系统上的光具有由第三光学系统弯曲的路径，以通过第二光学系统的透射区域以入射在投影表面上。

公开(公告)号：US20100157421A1

公开(公告)日：2010-06-24

申请号：US12160818

申请日：2007-11-28

申请人： Issei Abe ,  Kazuhiro Fujita ,  Atsushi Takaura

发明人： Issei Abe ,  Kazuhiro Fujita ,  Atsushi Takaura

IPC分类号： G02B17/08 ,  G02B15/14

CPC分类号： G03B21/2066 ,  G02B17/0852 ,  G02B17/0896 ,  G03B21/005 ,  G03B21/10 ,  G03B21/28

摘要： A projection optical system comprising a first optical system configured to form a first image conjugated with an object and a second optical system configured to project a second image conjugated with the first image toward a projection surface, in which at least one of the first optical system and second optical system comprises at least one optical element(s) movable relative to the object is provided, wherein an image distance of the projection optical system is changed and a size of the second image is changed, by moving at least one of the optical element(s) relative to the object.

摘要翻译： 一种投影光学系统，包括被配置为形成与物体共轭的第一图像的第一光学系统和配置成将与第一图像共轭的第二图像投影到投影表面的第二光学系统，其中，第一光学系统 并且第二光学系统包括相对于物体可移动的至少一个光学元件，其中通过移动光学系统中的至少一个来改变投影光学系统的图像距离并改变第二图像的尺寸 元素相对于对象。

公开(公告)号：US09625692B2

公开(公告)日：2017-04-18

申请号：US13595026

申请日：2012-08-27

申请人： Tatsuya Takahashi ,  Kazuhiro Fujita ,  Issei Abe

发明人： Tatsuya Takahashi ,  Kazuhiro Fujita ,  Issei Abe

IPC分类号： G02B17/00 ,  G02B17/08

CPC分类号： G02B17/0852 ,  G02B17/08

摘要： Disclosed is a projection optical system including a first optical system configured to form a first image conjugate to an object and have an optical axis and a second optical system configured to project a second image conjugate to the first image onto a surface to be projected on, wherein the first image satisfies a condition of: Im×Tr≦1.70 wherein Im denotes a length of the first image in a direction of an optical axis of the first optical system, normalized by a focal length of the first optical system, and Tr denotes a throw ratio for the projection optical system.

公开(公告)号：US20130235356A1

公开(公告)日：2013-09-12

申请号：US13643177

申请日：2011-05-09

申请人： Tatsuya Takahashi ,  Kazuhiro Fujita ,  Issei Abe

发明人： Tatsuya Takahashi ,  Kazuhiro Fujita ,  Issei Abe

IPC分类号： G02B17/08

CPC分类号： G02B17/08 ,  G02B17/0852 ,  G03B21/14 ,  G03B21/28

摘要： A disclosed projection optical system projects images on a surface to be projected on. The projection optical system includes a first optical system including at least one refraction optical system and having positive power as a whole, a folding mirror, and a second optical system including at least one reflection surface having power and having positive power as a whole. Further the folding mirror folds a light path from the first optical system to the second optical system, and in a plane including an optical axis of the first optical system and a normal line of the surface to be projected on, the following conditional expressions (1) through (3) are satisfied (1) 0.43≦d1, (2) 0.43≦d2, and (3) 0.7≦d2/d1≦2.0.

摘要翻译： 所公开的投影光学系统在要投影的表面上投影图像。 投影光学系统包括具有至少一个折射光学系统并具有整体正电力的第一光学系统，折叠镜和包括至少一个反射面的第二光学系统，该反射面整​​体上具有正的光焦度。 此外，折叠镜折叠从第一光学系统到第二光学系统的光路，并且在包括第一光学系统的光轴和要投影的表面的法线的平面中，以下条件表达式（1 ）（3）满足（1）0.43@d1，（2）0.43@d2和（3）0.7 @ d2 / d1 @ 2.0。

公开(公告)号：US20120236266A1

公开(公告)日：2012-09-20

申请号：US13411717

申请日：2012-03-05

申请人： Tatsuya Takahashi ,  Kazuhiro Fujita ,  Issei Abe

发明人： Tatsuya Takahashi ,  Kazuhiro Fujita ,  Issei Abe

IPC分类号： G03B21/14

CPC分类号： H04N9/3194 ,  G03B21/145 ,  G03B21/147 ,  G03B21/28 ,  H04N9/3185

摘要： An image projection apparatus includes: an optical image generating unit to generate an optical image based on image data; a projection surface; a projection optical system including a plurality of optical elements and configured to form an projected image, onto a projection surface, coupled with the optical image generated by the optical image generating unit; a projected image shifting unit to shift the projected image by changing a posture of at least one of the plurality of optical elements included in the projection optical system; a tilt sensor to detect a posture of the optical element of which posture is changed by the projected image shifting unit; and a trapezoidal distortion correction unit to correct the optical image generated by the optical image generating unit so as to prevent the trapezoidal distortion of the projected image from occurring based on the detection result of the tilt sensor.

摘要翻译： 一种图像投影设备，包括：光学图像生成单元，用于基于图像数据生成光学图像; 投影面; 投影光学系统，包括多个光学元件，并且被配置为与由所述光学图像生成单元生成的光学图像耦合的投影面; 投影图像移位单元，通过改变投影光学系统中包括的多个光学元件中的至少一个的姿势来移动投影图像; 倾斜传感器，用于检测投影图像移动单元改变姿势的光学元件的姿势; 以及梯形失真校正单元，用于校正由光学图像生成单元生成的光学图像，以便基于倾斜传感器的检测结果来防止投影图像的梯形失真。

公开(公告)号：US20100195061A1

公开(公告)日：2010-08-05

申请号：US12670019

申请日：2008-09-02

申请人： Atsushi Takaura ,  Kazuhiro Fujita ,  Issei Abe ,  Akihiro Yamakage ,  Osamu Nagase ,  Yoshitsugu Kohno

发明人： Atsushi Takaura ,  Kazuhiro Fujita ,  Issei Abe ,  Akihiro Yamakage ,  Osamu Nagase ,  Yoshitsugu Kohno

IPC分类号： G03B21/28 ,  G02B17/08

CPC分类号： G03B21/28 ,  G02B17/08 ,  G02B17/0896 ,  G02B26/0833 ,  G02B27/283 ,  G03B21/14

摘要： A projection optical apparatus capable of providing high image quality and having a reduced size. The projection optical apparatus comprises a light valve and a projection optical system including a first optical system (5) having a transmissive-refractive element and a second optical system (3′) having a reflective-refractive element. An image formed on the light valve is projected by the projection optical system on a projection surface (4). The optical axis in the first optical system (5) is folded both vertically and horizontally. The first group (5A) of the first optical system is contained in a space (dead space) whose lower limit is defined by a lower edge of the second optical system (3′)/thereby reducing the depth of the apparatus.

摘要翻译： 一种能够提供高图像质量并且具有减小的尺寸的投影光学装置。 投影光学装置包括光阀和包括具有透射折射元件的第一光学系统（5）和具有反射折射元件的第二光学系统（3'）的投影光学系统。 形成在光阀上的图像被投影光学系统投射在投影面（4）上。 第一光学系统（5）中的光轴垂直和水平折叠。 第一光学系统的第一组（5A）包含在其下限由第二光学系统（3'）的下边缘限定的空间（死区）中，从而减小了设备的深度。

公开(公告)号：US07646536B2

公开(公告)日：2010-01-12

申请号：US12108904

申请日：2008-04-24

申请人： Kazuhiro Fujita ,  Atsushi Takaura ,  Issei Abe

发明人： Kazuhiro Fujita ,  Atsushi Takaura ,  Issei Abe

IPC分类号： G03B21/60

CPC分类号： G03B21/60

摘要： A disclosed reflective screen is configured to display an image projected from a projection device located within a short distance. The reflective screen comprises a first reflective surface configured to reflect, in a substantially same direction, projection light beams projected from a first position, and a second reflective surface configured to reflect, in the substantially same direction, projection light beams projected from a second position different from the first position.

摘要翻译： 所公开的反射屏被配置为显示从位于短距离内的投影设备投影的图像。 反射屏幕包括第一反射表面，该第一反射表面被构造成在基本上相同的方向上反射从第一位置突出的投影光束，以及第二反射表面，其构造成在基本相同的方向上反射从第二位置突出的投影光束 不同于第一个位置。

公开(公告)号：US09946144B2

公开(公告)日：2018-04-17

申请号：US12160818

申请日：2007-11-28

申请人： Issei Abe ,  Kazuhiro Fujita ,  Atsushi Takaura

发明人： Issei Abe ,  Kazuhiro Fujita ,  Atsushi Takaura

IPC分类号： G02B17/00 ,  G03B21/20 ,  G02B17/08 ,  G03B21/00 ,  G03B21/10 ,  G03B21/28

CPC分类号： G03B21/2066 ,  G02B17/0852 ,  G02B17/0896 ,  G03B21/005 ,  G03B21/10 ,  G03B21/28

摘要： A projection optical system is disclosed. The projection optical system includes a first optical system configured to form a first image conjugated with an object and a second optical system configured to project a second image conjugated with the first image toward a projection surface. At least one of the first optical system and second optical system includes at least one optical element(s) movable relative to the object is provided. An image distance of the projection optical system is changed and a size of the second image is changed, by moving at least one of the optical element(s) relative to the object.