公开(公告)号：US20130201536A1

公开(公告)日：2013-08-08

申请号：US13757998

申请日：2013-02-04

申请人： Tadashi NAKAMURA ,  Toshiaki Tokita ,  Yukio Itami ,  Taku Amada ,  Shingo Tachikawa

发明人： Tadashi NAKAMURA ,  Toshiaki Tokita ,  Yukio Itami ,  Taku Amada ,  Shingo Tachikawa

IPC分类号： H04N1/04 ,  G02B26/10

CPC分类号： H04N1/04 ,  B41J2/473 ,  G02B26/10 ,  G02B26/123 ,  G02B27/141

摘要： An optical scanning device includes: a light source device that emits five light beams corresponding to four basic colors and a single specific color; and five scanning optical systems corresponding the five light beams. One light beam in a first waveband among the light beams corresponding to the four basic colors enters one scanning optical system of the five scanning optical systems. The one scanning optical system includes a dichroic mirror that transmits a light beam in a second waveband different from the first waveband. An angle θb formed between a normal to the incidence plane of the dichroic mirror and orthogonal projection to an assumed plane orthogonal to the main scanning corresponding direction of the incident path of the light beam to the incidence plane of the dichroic mirror is set at an angle of 0° or more and an angle of 45° or less.

摘要翻译： 光学扫描装置包括：光源装置，其发射对应于四种基本颜色和单一特定颜色的五个光束; 和五个对应五个光束的扫描光学系统。 对应于四种基色的光束中的第一波段中的一个光束进入五个扫描光学系统的一个扫描光学系统。 一个扫描光学系统包括分色镜，其在与第一波段不同的第二波段中透射光束。 在分光镜的入射面的法线与正交于与分光镜的入射面的入射路径的主扫描对应方向正交的假想平面的正交投影面之间形成的角度被设定为角度 为0°以上，角度为45°以下。

公开(公告)号：US08928716B2

公开(公告)日：2015-01-06

申请号：US13757998

申请日：2013-02-04

申请人： Tadashi Nakamura ,  Toshiaki Tokita ,  Yukio Itami ,  Taku Amada ,  Shingo Tachikawa

发明人： Tadashi Nakamura ,  Toshiaki Tokita ,  Yukio Itami ,  Taku Amada ,  Shingo Tachikawa

IPC分类号： B41J15/14 ,  B41J27/00 ,  H04N1/04 ,  G02B26/10 ,  B41J2/47 ,  G02B26/12 ,  G02B27/14

CPC分类号： H04N1/04 ,  B41J2/473 ,  G02B26/10 ,  G02B26/123 ,  G02B27/141

摘要： An optical scanning device includes: a light source device that emits five light beams corresponding to four basic colors and a single specific color; and five scanning optical systems corresponding the five light beams. One light beam in a first waveband among the light beams corresponding to the four basic colors enters one scanning optical system of the five scanning optical systems. The one scanning optical system includes a dichroic mirror that transmits a light beam in a second waveband different from the first waveband. An angle θb formed between a normal to the incidence plane of the dichroic mirror and orthogonal projection to an assumed plane orthogonal to the main scanning corresponding direction of the incident path of the light beam to the incidence plane of the dichroic mirror is set at an angle of 0° or more and an angle of 45° or less.

摘要翻译： 光学扫描装置包括：光源装置，其发射对应于四种基本颜色和单一特定颜色的五个光束; 和五个对应五个光束的扫描光学系统。 对应于四种基色的光束中的第一波段中的一个光束进入五个扫描光学系统的一个扫描光学系统。 一个扫描光学系统包括分色镜，其在与第一波段不同的第二波段中透射光束。 形成在与分色镜的入射面法线正交的正交投影与垂直于光束与分色镜的入射面的入射路径的主扫描对应方向正交的假想平面的角度＆amp; 角度为0°以上，角度为45°以下。

公开(公告)号：US20110316959A1

公开(公告)日：2011-12-29

申请号：US13169942

申请日：2011-06-27

申请人： Kenichiroh SAISHO ,  Toshiaki Tokita ,  Nobuaki Kubo ,  Seizo Suzuki

发明人： Kenichiroh SAISHO ,  Toshiaki Tokita ,  Nobuaki Kubo ,  Seizo Suzuki

IPC分类号： B41J2/435 ,  G02B26/08

CPC分类号： G02B26/123 ,  B41J2/473 ,  G02B26/124 ,  G02B27/283

摘要： An optical scanning device, arranged on one side of at least two to-be-scanned members in a second direction, and the two to-be-scanned members being arranged in a first direction perpendicular to the second, includes: an illuminating system that emits beams including a first beam and a second beam whose polarization directions are different from each other; an optical deflector that deflects the beams; and a scanning optical system that includes a polarization separation element that transmits one of the first and second beams and reflects the other; a first mirror group including reflecting mirrors for guiding the first beam to a to-be-scanned member; and a second mirror group including reflecting mirrors for guiding the second beam to a to-be-scanned member. Last-stage reflecting mirrors in the first and second mirror groups are arranged on one side of the beams deflected by the optical deflector in the second direction.

摘要翻译： 一种光学扫描装置，其布置在沿第二方向的至少两个待扫描构件的一侧上，并且两个被扫描构件沿垂直于第二方向的第一方向布置，包括：照明系统， 发射包括偏振方向彼此不同的第一光束和第二光束的光束; 偏转光束的光学偏转器; 以及扫描光学系统，其包括透射第一和第二光束中的一个并反射另一光束的偏振分离元件; 第一反射镜组，包括用于将第一光束引导到被扫描部件的反射镜; 以及包括用于将第二光束引导到被扫描部件的反射镜的第二反射镜组。 第一和第二反射镜组中的后级反射镜布置在由光学偏转器沿第二方向偏转的光束的一侧上。

公开(公告)号：US07889224B2

公开(公告)日：2011-02-15

申请号：US12204361

申请日：2008-09-04

申请人： Toshimichi Hagiya ,  Kazuya Miyagaki ,  Atsushi Takaura ,  Toshiaki Tokita

发明人： Toshimichi Hagiya ,  Kazuya Miyagaki ,  Atsushi Takaura ,  Toshiaki Tokita

IPC分类号： B41J27/00 ,  B41J2/385 ,  B41J15/14

CPC分类号： H01S5/183 ,  B41J2/473 ,  G02B26/12 ,  H01S5/005 ,  H01S5/06236 ,  H01S5/4006

摘要： A disclosed optical path switching device includes a polarization bistable VCSEL that emits a beam having a rising polarization plane, a laser light source configured to emit a beam having a polarization plane orthogonal to the rising polarization plane, and an optical path switching unit configured to switch an optical path of the beam emitted from the polarization bistable VCSEL by switching the angle of the rising polarization plane of the beam emitted from the polarization bistable VCSEL. The beam emitted from the polarization bistable VCSEL is incident on an entrance window of the optical path switching unit, and the beam emitted from the laser light source is incident on an exit window of the polarization bistable VCSEL.

摘要翻译： 所公开的光路切换装置包括：发射具有上升偏振面的光束的偏振双稳态VCSEL;被配置为发射具有与上升偏振面正交的偏振面的光束的激光源;以及光路切换部， 通过切换从偏振双稳态VCSEL发射的光束的上升偏振面的角度，从偏振双稳态VCSEL发射的光束的光路。 从偏振双稳态VCSEL发射的光束入射到光路切换单元的入口窗口，并且从激光光源发射的光束入射到偏振双稳态VCSEL的出射窗口。

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.

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 。

公开(公告)号：US5459701A

公开(公告)日：1995-10-17

申请号：US900172

申请日：1992-06-17

申请人： Toshiaki Tokita ,  Motoharu Tanaka ,  Atsuyuki Watada ,  Yoshiko Kurosawa

发明人： Toshiaki Tokita ,  Motoharu Tanaka ,  Atsuyuki Watada ,  Yoshiko Kurosawa

IPC分类号： G11B11/105 ,  G11B13/04

CPC分类号： G11B11/1053 ,  G11B11/10517

摘要： A magneto-optical recording method is capable of carrying out overwriting on a magneto-optical recording medium including a single perpendicular magnetic layer serving as a recording layer, by applying laser beams thereto, thereby controlling the formation and erasure of magnetic domains, in which a magnetic domain with a desired length can be formed or erased by the application of a plurality of laser beams during the formation and erasure of the magnetic domains.

摘要翻译： 磁光记录方法能够通过对其进行激光束而在包括用作记录层的单个垂直磁性层的磁光记录介质上进行重写，从而控制磁畴的形成和擦除，其中 可以通过在磁畴的形成和擦除期间施加多个激光束来形成或擦除具有期望长度的磁畴。

公开(公告)号：US09625711B2

公开(公告)日：2017-04-18

申请号：US13718514

申请日：2012-12-18

申请人： Naoto Watanabe ,  Toshiaki Tokita ,  Kohji Sakai ,  Nobuaki Kubo ,  Masayuki Muranaka

发明人： Naoto Watanabe ,  Toshiaki Tokita ,  Kohji Sakai ,  Nobuaki Kubo ,  Masayuki Muranaka

IPC分类号： G02B26/12 ,  B41J2/47

CPC分类号： B41J2/473 ,  B41J2/471 ,  G02B26/123 ,  G02B26/127 ,  G02B26/129 ,  G03G15/043 ,  G03G15/505

摘要： An optical scanning apparatus includes a light source, an optical deflector having a rotary polygon mirror to deflect a light beam from the light source, a scanning optical system configured to focus the light beam deflected by the optical deflector on a target surface, a sync detecting sensor configured to determine a write start timing on the target surface, and a processing unit configured to correct detection data of the sync detecting sensor based on a measured value of a time needed for one revolution of the rotary polygon mirror.

公开(公告)号：US08922863B2

公开(公告)日：2014-12-30

申请号：US13608216

申请日：2012-09-10

申请人： Toshiaki Tokita ,  Nobuaki Kubo ,  Naoto Watanabe ,  Kohji Sakai

发明人： Toshiaki Tokita ,  Nobuaki Kubo ,  Naoto Watanabe ,  Kohji Sakai

IPC分类号： G02B26/08 ,  B41J2/47 ,  G03G15/043 ,  G02B26/12 ,  G02B3/00 ,  G02B5/30

CPC分类号： B41J2/473 ,  G02B3/0075 ,  G02B5/3058 ,  G02B26/123 ,  G03G15/0435

摘要： An optical scanning device separately scanning plural scan target surfaces in a first direction with light includes: a light source unit configured to emit first and second light beams mutually different in polarization state; an optical deflector configured to rotate around an axis parallel to a second direction perpendicular to the first direction, and deflect the emitted light beams; an imaging optical element provided on respective optical paths of the deflected light beams; a polarization adjustment element provided on the optical paths of the light beams transmitted through the imaging optical element, and configured to correct respective changes in polarization state of the light beams occurring during the transmission of the light beams through the imaging optical element; and a polarization separation element provided on the optical paths of the light beams emitted from the polarization adjustment element, and configured to separate the light beams from each other.

摘要翻译： 利用光分别在第一方向上扫描多个扫描目标表面的光学扫描装置包括：光源单元，被配置为发射极化状态彼此不同的第一和第二光束; 光学偏转器，被配置为围绕平行于与第一方向垂直的第二方向的轴线旋转，并偏转发射的光束; 设置在偏转光束的相应光路上的成像光学元件; 偏振调节元件，设置在通过成像光学元件透射的光束的光路上，并且被配置为校正在通过成像光学元件的光束透射期间发生的光束的偏振状态的变化; 以及偏振分离元件，设置在从偏振调节元件发射的光束的光路上，并且被配置为将光束彼此分离。

公开(公告)号：US08531766B2

公开(公告)日：2013-09-10

申请号：US12826237

申请日：2010-06-29

申请人： Toshiaki Tokita ,  Nobuaki Kubo ,  Kenichiro Saisho

发明人： Toshiaki Tokita ,  Nobuaki Kubo ,  Kenichiro Saisho

IPC分类号： G02B5/30

CPC分类号： G02B26/123 ,  B41J2/473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0082

摘要： A polarization-separation device includes: a beam splitter that includes a beam-separating surface, on which a light beam that contains a first light beam and a second light beam impinges, wherein polarization direction of the first light beam and polarization direction of the second light beam are perpendicular to each other, and incident angle of the first light beam and incident angle of the second beam vary independently while incident into the beam-separating surface; a first polarizer arranged in an optical path of light beams having transmitted through the beam splitter, and allows the first light beam to transmit therethrough; and a second polarizer arranged in an optical path of light beams reflected from the beam splitter, and allows the second light beam to transmit therethrough.

摘要翻译： 偏振分离装置包括：分束器，包括光束分离表面，其上包含第一光束和第二光束的光束照射在其上，其中第一光束的偏振方向和第二光束的偏振方向 光束彼此垂直，并且第一光束的入射角和第二光束的入射角在入射到光束分离表面时独立地变化; 布置在透射通过分束器的光束的光路中并且允许第一光束透射的第一偏振器; 以及布置在从分束器反射的光束的光路中的第二偏振器，并且允许第二光束透射通过。