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公开(公告)号：US20090213470A1
公开(公告)日：2009-08-27
申请号：US12392287
申请日：2009-02-25
申请人： Issei ABE , Kazuhiro Fujita
发明人： Issei ABE , Kazuhiro Fujita
IPC分类号： G02B9/00
CPC分类号： G02B27/283 , G02B17/0804 , G02B27/1026 , G02B27/14 , G02B27/149
摘要： A projection optical system, in which a plurality of light flux emitted from one conjugate plane enters another conjugate plane and an image formed on the one conjugate plane is projected on the other conjugate plane, includes: a first optical system including at least one lens; and a second optical system which includes at least two reflecting surfaces with optical power, a normal line of the other conjugate plane from a center of an image projected on the other conjugate plane has no intersection with any space of the first optical system, or the second optical system, or a space between the first optical system and the second optical system, and when a plane defined by a vertical direction of the image projected on the other conjugate plane and an extending direction of the normal line is set as a YZ plane, from the first optical system to the other conjugate plane an optical path intersects only once on the YZ plane.
摘要翻译： 一种投影光学系统，其中从一个共轭面发射的多个光束进入另一个共轭平面，并且在一个共轭平面上形成的图像投影在另一共轭平面上，包括：包括至少一个透镜的第一光学系统; 以及第二光学系统，其包括具有光功率的至少两个反射表面，另一个共轭平面的从另一个共轭平面投影的图像的中心的法线与第一光学系统的任何空间不相交，或者 第二光学系统或第一光学系统和第二光学系统之间的空间，并且当由投影在另一个共轭平面上的图像的垂直方向和法线的延伸方向限定的平面被设置为YZ平面 ，从第一光学系统到另一个共轭平面，光路仅在YZ平面上相交一次。
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112.发明授权Micro-optical device, spatial optical modulator and projector utilizing the micro-optical device 失效微光学装置，利用微光学装置的空间光学调制器和投影仪公开(公告)号：US07561336B2
公开(公告)日：2009-07-14
申请号：US11573406
申请日：2005-12-08
CPC分类号： G03B21/005 , H04N5/7441
摘要： A micro-optical device includes a plurality of minute optical elements each having a curved surface operable to condense incident light. The minute optical elements are arranged at constant intervals. The curved surface is expressed by two or more F values. Each of the minute optical elements is a transmission lens element having the curved surface including a substantially flat part at a center of the transmission lens element, wherein the curved surface is convex or concave.
摘要翻译： 微型光学装置包括多个微小的光学元件，每个微小的光学元件具有可操作以冷凝入射光的弯曲表面。 微小的光学元件以恒定的间隔布置。 曲面由两个以上的F值表示。 每个微小的光学元件是具有弯曲表面的透射透镜元件，该透明透镜元件在透镜透镜元件的中心处包括基本上平坦的部分，其中弯曲表面是凸形或凹形的。
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公开(公告)号：US20090141370A1
公开(公告)日：2009-06-04
申请号：US12363423
申请日：2009-01-30
申请人： Atsushi TAKAURA , Issei Abe , Kazuhiro Fujita
发明人： Atsushi TAKAURA , Issei Abe , Kazuhiro Fujita
CPC分类号： G02B13/16 , G02B17/08 , G02B17/0852 , G03B21/10 , G03B21/28 , H04N9/3152
摘要： A disclosed projection optical system for projecting and forming an enlarged image of an image displayed in a planar manner as an object includes: a lens system including, from an object side, at least a lens group providing telecentricity to an object space side, a lens group controlling divergence of angles of view, a diaphragm, a lens group converging the angles of view, and a lens group converging and subsequently enlarging the angles of view; and a catoptric system disposed on an image side relative to the lens system and including a mirror having negative power. Each lens group of the lens system and the mirror having negative power share an optical axis and the optical axis is shifted relative to a center of an object surface.
摘要翻译： 用于投影和形成以平面方式显示的图像的放大图像的公开的投影光学系统作为对象包括：透镜系统，其从物体侧至少包括向物体空间侧提供远心的透镜组，透镜 组控制视角的发散度，光阑，会聚了视角的透镜组和收敛并随后扩大视角的透镜组; 以及相对于透镜系统设置在图像侧的反射系统，并且包括具有负电力的反射镜。 透镜系统的每个透镜组和具有负光焦度的反射镜共享光轴并且光轴相对于物体表面的中心移动。
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114.发明授权公开(公告)号：US07441908B2
公开(公告)日：2008-10-28
申请号：US11345493
申请日：2006-02-02
申请人： Atsushi Takaura , Kazuhiro Fujita , Nobuo Sakuma
发明人： Atsushi Takaura , Kazuhiro Fujita , Nobuo Sakuma
CPC分类号： G03B21/28 , G02B13/16 , G02B17/0816 , G02B17/0848 , G02B17/0852
摘要： A projection optical system for use in an image projection apparatus illuminating a light valve forming an image in accordance with a modulating signal with illumination light from a light source. The projection optical system includes first and second optical systems arranged along an optical path defining an upstream-downstream direction in the order described from upstream to downstream on the downstream side of the light valve. The first optical system includes at least one dioptric system and has positive power. The second optical system includes at least one reflecting surface having power and has positive power. The image formed by the light valve is formed as an intermediate image in the optical path, and the intermediate image is magnified and projected.
摘要翻译： 一种用于图像投影装置的投影光学系统，其利用来自光源的照明光照亮形成根据调制信号的图像的光阀。 投影光学系统包括沿着光路布置的第一和第二光学系统，该光学路径以从光阀的下游侧的上游到下游描述的顺序限定上游 - 下游方向。 第一光学系统包括至少一个屈光度系统并且具有正的功率。 第二光学系统包括具有功率并且具有正功率的至少一个反射表面。 由光阀形成的图像形成为光路中的中间图像，并且中间图像被放大和投影。
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公开(公告)号：US20070253076A1
公开(公告)日：2007-11-01
申请号：US11742036
申请日：2007-04-30
申请人： Atsushi Takaura , Issei Abe , Kazuhiro Fujita
发明人： Atsushi Takaura , Issei Abe , Kazuhiro Fujita
IPC分类号： G02B9/34
CPC分类号： G02B13/16 , G02B17/08 , G02B17/0852 , G03B21/10 , G03B21/28 , H04N9/3152
摘要： A disclosed projection optical system for projecting and forming an enlarged image of an image displayed in a planar manner as an object includes: a lens system including, from an object side, at least a lens group providing telecentricity to an object space side, a lens group controlling divergence of angles of view, a diaphragm, a lens group converging the angles of view, and a lens group converging and subsequently enlarging the angles of view; and a catoptric system disposed on an image side relative to the lens system and including a mirror having negative power. Each lens group of the lens system and the mirror having negative power share an optical axis and the optical axis is shifted relative to a center of an object surface.
摘要翻译： 用于投影和形成以平面方式显示的图像的放大图像的公开的投影光学系统作为对象包括：透镜系统，其从物体侧至少包括向物体空间侧提供远心的透镜组，透镜 组控制视角的发散度，光阑，会聚了视角的透镜组和收敛并随后扩大视角的透镜组; 以及相对于透镜系统设置在图像侧的反射系统，并且包括具有负电力的反射镜。 透镜系统的每个透镜组和具有负光焦度的反射镜共享光轴并且光轴相对于物体表面的中心移动。
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公开(公告)号：US20060209295A1
公开(公告)日：2006-09-21
申请号：US11374317
申请日：2006-03-14
申请人： Hiroyuki Sugimoto , Toshiaki Tokita , Kazuhiro Fujita , Toshiharu Murai , Yasuyuki Takiguchi , Atsushi Takaura , Kazuya Miyagaki , Takanobu Osaka
发明人： Hiroyuki Sugimoto , Toshiaki Tokita , Kazuhiro Fujita , Toshiharu Murai , Yasuyuki Takiguchi , Atsushi Takaura , Kazuya Miyagaki , Takanobu Osaka
IPC分类号： G02F1/135
CPC分类号： G02F1/141 , G02F1/134363 , G02F1/13471 , G02F2001/133638 , G02F2001/133742 , G02F2001/291 , G09G3/2022 , G09G3/3629 , G09G2300/0426 , G09G2340/0414 , G09G2340/0421 , G09G2340/145 , H04N9/3105 , H04N9/3114
摘要： A light path shift device is disclosed that is able to divide an effective region of a light path and drive the divided regions independently. The light path shift device includes a liquid crystal layer held between at least two opposite transparent substrates, the liquid crystal layer being homeotropically aligned and being able to form a chiral smectic C phase; and plural electrodes for applying an electric field in the liquid crystal layer in a horizontal direction. An effective region of the liquid crystal layer through which a light path passes is divided into plural sub-regions, plural light path shift elements with the electrodes formed thereon are stacked only at positions corresponding to the sub-regions, and are arranged so that boundary lines of the sub-regions are in agreement when being viewed along the direction of light propagation.
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117.发明申请Intermediate image formation optical system, image formation device, and methods thereof 失效中间成像光学系统，图像形成装置及其方法公开(公告)号：US20060192903A1
公开(公告)日：2006-08-31
申请号：US11341518
申请日：2006-01-30
申请人： Atsushi Takaura , Takanobu Osaka , Yasuyuki Takiguchi , Toshiaki Tokita , Kazuhiro Fujita , Kazuya Miyagaki , Hiroyuki Sugimoto
发明人： Atsushi Takaura , Takanobu Osaka , Yasuyuki Takiguchi , Toshiaki Tokita , Kazuhiro Fujita , Kazuya Miyagaki , Hiroyuki Sugimoto
IPC分类号： G02F1/1335 , G02B5/30
CPC分类号： H04N9/3141 , H04N5/7441
摘要： An image projection device performing pixel shift in synchronization with sequential updating of image data is disclosed that is able to start and stop pixel shift operations within a period of updating the image frames while maintaining brightness of the image. The image projection device has an intermediate image formation optical system including a light valve able to update an image frame in a line-sequential manner, a pixel shift unit to shift the light path of a light beam from the light valve so as to shift a position of an image formed on the light valve, and an intermediate image formation unit arranged on the light path between the light valve and the pixel shift unit for forming an intermediate image of the image on the light valve at a position of the pixel shift unit.
摘要翻译： 公开了与图像数据的顺序更新同步地执行像素移位的图像投影装置，其能够在保持图像的亮度的同时更新图像帧的周期内开始和停止像素移位操作。 图像投影装置具有中间图像形成光学系统，该中间图像形成光学系统包括能够以顺序方式更新图像帧的光阀，移动来自光阀的光束的光路的像素移位单元， 形成在光阀上的图像的位置和布置在光阀和像素移位单元之间的光路上的中间图像形成单元，用于在像素移位单元的位置处形成光阀上的图像的中间图像 。
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公开(公告)号：US06563248B2
公开(公告)日：2003-05-13
申请号：US10025498
申请日：2001-12-26
申请人： Kazuhiro Fujita
发明人： Kazuhiro Fujita
IPC分类号： H02K2302
摘要： Electromagnets are placed to face each other in a yoke. Both ends of pole cores of the electromagnets are extended and bent. Permanent magnets are sandwiched between the extended parts of the pole cores. The north pole and south pole of the permanent magnet are in abutment with the north pole core and south pole core, respectively. When rotor windings and stator windings are not energized, a flux of the permanent magnets forms a closed magnetic circuit within the stator. When the rotor windings and the stator windings are energized, magnetic force lines of the electromagnets and permanent magnets flow through an armature core in the same direction via teeth and fluxes are increased.
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公开(公告)号：USD468505S1
公开(公告)日：2003-01-07
申请号：US29152662
申请日：2001-12-20
申请人： Kazuhiro Fujita , Yoshiaki Ueda
设计人： Kazuhiro Fujita , Yoshiaki Ueda
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公开(公告)号：USD417323S
公开(公告)日：1999-11-30
申请号：US86147
申请日：1998-04-07
申请人： Kazuhiro Fujita , Toshiaki Tsuruha
设计人： Kazuhiro Fujita , Toshiaki Tsuruha
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