公开(公告)号：US5952649A

公开(公告)日：1999-09-14

申请号：US907617

申请日：1997-08-08

申请人： Taku Amada

发明人： Taku Amada

IPC分类号： B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  G02B26/10 ,  G03G15/04 ,  G03G15/043 ,  H04N1/113 ,  H04N1/29 ,  H01J5/16 ,  G02F1/01

CPC分类号： H04N1/295

摘要： An optical write apparatus includes a light source unit, a first image-forming optic, a beam deflector, a transparent plate, a second image-forming optic, and a photosensitive body, the transparent plate being provided at a predetermined angle .alpha. with respect to a main-scanning direction on a scanned surface so that charge is built up evenly on the scanned surface.

摘要翻译： 光学写入装置包括光源单元，第一图像形成光学元件，光束偏转器，透明板，第二成像光学元件和感光体，透明板相对于 在扫描表面上的主扫描方向，使得电荷均匀地建立在扫描的表面上。

公开(公告)号：US09228825B2

公开(公告)日：2016-01-05

申请号：US14208621

申请日：2014-03-13

申请人： Atsushi Takaura ,  Koji Masuda ,  Yasuhiro Nihei ,  Takeshi Ueda ,  Koichi Kudo ,  Taku Amada ,  Kenichi Shimizu ,  Asato Tamura

发明人： Atsushi Takaura ,  Koji Masuda ,  Yasuhiro Nihei ,  Takeshi Ueda ,  Koichi Kudo ,  Taku Amada ,  Kenichi Shimizu ,  Asato Tamura

IPC分类号： G01B11/14 ,  G01B11/04 ,  G03G15/00

CPC分类号： G01B11/043 ,  G03G15/00 ,  G03G15/5054 ,  G03G2215/00616

摘要： An objective is to achieve a positional change measurement device which measures positional change of a dynamic measured surface by using speckle patterns while easily reducing influence of fluctuations in a measurement environment temperature. Provided is a positional change measurement device including: a light source; an illuminating optical system configured to guide light from the light source to a measured surface; an imaging optical system; an image pickup device configured to acquire a speckle pattern by receiving reflection light from the measured surface via the imaging optical system; and detected-length compensation means for compensating for fluctuations in a detected length caused by temperature fluctuations. Positional change of the measured surface is measured based on a result of cross-correlation computation performed on multiple speckle patterns acquired at predetermined time intervals.

摘要翻译： 目的是实现利用散斑图案来测量动态测量表面的位置变化同时容易地减少测量环境温度波动的影响的位置变化测量装置。 提供一种位置变化测量装置，包括：光源; 照明光学系统，被配置为将来自所述光源的光引导到测量的表面; 成像光学系统; 被配置为通过经由所述成像光学系统从测量的表面接收反射光来获取散斑图案的图像拾取装置; 以及用于补偿由温度波动引起的检测长度的波动的检测长度补偿装置。 基于在以预定时间间隔获取的多个散斑图案上执行的互相关计算的结果来测量测量表面的位置变化。

公开(公告)号：US08593497B2

公开(公告)日：2013-11-26

申请号：US13204922

申请日：2011-08-08

申请人： Taku Amada ,  Tomohiro Nakajima

发明人： Taku Amada ,  Tomohiro Nakajima

IPC分类号： B41J15/14 ,  B41J27/00

CPC分类号： B41J2/473 ,  G02B7/1815

摘要： An optical scanning device that optically scans a surface to be scanned in a main-scanning direction includes a light source; an optical deflector that has a reflective surface rotating on an axis of rotation of the reflective surface and deflects a light beam emitted from the light source; a scanning optical system that guides the light beam deflected by the optical deflector to the surface to be scanned; and a flow guide member that is provided near the optical deflector and turns back a flow of air generated by rotation of the reflective surface toward the reflective surface.

摘要翻译： 沿主扫描方向光扫描待扫描的表面的光学扫描装置包括光源; 光学偏转器，其具有在所述反射表面的旋转轴线上旋转的反射表面，并偏转从所述光源发射的光束; 扫描光学系统，其将由所述光学偏转器偏转的光束引导到待扫描的表面; 以及流动引导构件，其设置在所述光学偏转器附近，并且将由所述反射表面的旋转产生的空气流朝向所述反射表面。

公开(公告)号：US08270053B2

公开(公告)日：2012-09-18

申请号：US12230015

申请日：2008-08-21

申请人： Taku Amada ,  Hiromichi Atsuumi

发明人： Taku Amada ,  Hiromichi Atsuumi

IPC分类号： G02B7/02

CPC分类号： G02B26/125 ,  B41J2/471

摘要： A holding mechanism for a long length optical element, which extends in a main scanning direction that is a movement direction of a deflected luminous flux by an optical deflector, and leads the deflected luminous flux to a scanned surface, includes; a holding member which is placed in a sub-scanning direction orthogonal to the main scanning direction and holds the long length optical element in at least two places. The holding member has, an adjusting section which deflects the long length optical element in the sub-scanning direction and controls a tilt of the long length optical element in a sub-scanning cross-section and/or occurrences of a tilt distribution in a longitudinal direction in the sub-scanning cross-section.

摘要翻译： 包括：长光学元件的保持机构，其沿着作为光偏转器的偏转光束的移动方向的主扫描方向延伸并将被偏转的光束引导到扫描面， 保持构件，其放置在与主扫描方向正交的副扫描方向上，并且将长度光学元件保持在至少两个位置。 保持构件具有调整部，该调整部使副扫描方向上的长度光学元件偏转，并且在副扫描截面中控制长度光学元件的倾斜和/或纵向的倾斜分布的发生 方向在副扫描横截面。

公开(公告)号：US08174747B2

公开(公告)日：2012-05-08

申请号：US12490437

申请日：2009-06-24

申请人： Taku Amada ,  Atsuhiko Ogawa

发明人： Taku Amada ,  Atsuhiko Ogawa

IPC分类号： G02B26/08

CPC分类号： G03G15/04036 ,  B41J2/471 ,  G02B26/123 ,  G02B26/127 ,  G03G15/0435 ,  G03G15/326 ,  G03G2215/0404 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0082 ,  H04N2201/04713 ,  H04N2201/04729

摘要： An optical scanning apparatus for scanning a surface to be scanned includes: a light source that emits laser beam; a deflector that deflects the laser beam emitted from the light source; a plurality of optical scanning elements that introduce the deflected laser beam to the surface to be scanned; a housing that holds therein at least one of the light source, the deflector, and the scanning optical elements; a light receiving element that receives the deflected laser beam; a mirror that introduces the deflected laser beam to the light receiving element; and a holder that is provided on the housing and that holds the light receiving element and the mirror integrally.

摘要翻译： 用于扫描待扫描表面的光学扫描装置包括：发射激光束的光源; 偏转器，其使从所述光源发射的激光束偏转; 多个光学扫描元件，其将偏转的激光束引入待扫描的表面; 壳体，其保持光源，偏转器和扫描光学元件中的至少一个; 接收偏转的激光束的光接收元件; 将偏转的激光束引入光接收元件的反射镜; 以及保持器，其设置在壳体上并且一体地保持光接收元件和反射镜。

公开(公告)号：USRE42865E1

公开(公告)日：2011-10-25

申请号：US11802914

申请日：2007-05-25

申请人： Mitsuo Suzuki ,  Naoki Miyatake ,  Taku Amada ,  Seizo Suzuki ,  Kazuyuki Shimada ,  Satoru Itoh

发明人： Mitsuo Suzuki ,  Naoki Miyatake ,  Taku Amada ,  Seizo Suzuki ,  Kazuyuki Shimada ,  Satoru Itoh

IPC分类号： B41J15/14 ,  B41J27/00 ,  G02F1/13

CPC分类号： G02B26/127 ,  B41J2/473

摘要： An optical scanning characteristic control method is applied to an optical scanning system in which a beam is deflected, and the deflected beam is converged and directed toward a scanning surface, so that optical scanning of the scanning surface is performed by an optical spot formed thereon by the deflected beam. The method comprising the steps of a) disposing a beam deflection control device on the light path of the beam before it is incident on the scanning surface; and b) controlling a beam deflection amount of the beam deflecting device provide to an incident beam so as to control a scanning characteristic of the optical scanning.

摘要翻译： 光学扫描特性控制方法被应用于其中光束被偏转的光学扫描系统，并且偏转的光束会聚并指向扫描表面，使得扫描表面的光学扫描由其上形成的光点由 偏转梁。 该方法包括以下步骤：a）在光束入射到扫描表面上之前，将光束偏转控制装置设置在光束的光路上; 以及b）控制光束偏转装置的光束偏转量提供给入射光束，以便控制光学扫描的扫描特性。

公开(公告)号：US08031362B2

公开(公告)日：2011-10-04

申请号：US11543092

申请日：2006-10-05

申请人： Taku Amada

发明人： Taku Amada

IPC分类号： G06K15/12

CPC分类号： G02B26/124 ,  H04N1/1135 ,  H04N2201/0476 ,  H04N2201/04791

摘要： A disclosed optical scanning device scans an object scanning surface with a light beam projected from a light source and traveling through an optical system. The optical scanning device includes a liquid crystal element configured to modulate a phase. The liquid crystal element is driven by electric signals and provided on a light path between the light source and the object scanning surface. The liquid crystal element generates different power components in a main scanning direction and a sub scanning direction under temperature variations.

摘要翻译： 所公开的光学扫描装置用从光源投影的光束扫描物体扫描表面，并通过光学系统传播。 光学扫描装置包括配置成调制相位的液晶元件。 液晶元件由电信号驱动并设置在光源和物体扫描表面之间的光路上。 在温度变化下，液晶元件在主扫描方向和副扫描方向上产生不同的功率分量。

公开(公告)号：US07936492B2

公开(公告)日：2011-05-03

申请号：US12051404

申请日：2008-03-19

申请人： Taku Amada ,  Tomohiro Nakajima

发明人： Taku Amada ,  Tomohiro Nakajima

IPC分类号： G02B26/08

CPC分类号： B41J2/473 ,  G02B26/124 ,  G03G15/0435 ,  G03G15/326 ,  G03G2215/0404

摘要： An optical splitting member splits a light beam emitted by a light source into first light beam and second light beam. A coupling member couples the first light beam. An optical system converges the second light beam on a light receiving unit. A holding member holds the light source, the optical splitting member, the coupling member, and the optical system. A supporting member supports the holding member so that the holding member is rotatable about an optical axis of the light beam.

摘要翻译： 光分离构件将由光源发射的光束分成第一光束和第二光束。 联接构件联接第一光束。 光学系统将第二光束会聚在光接收单元上。 保持构件保持光源，光分路构件，联接构件和光学系统。 支撑构件支撑保持构件，使得保持构件可绕光束的光轴旋转。

公开(公告)号：US07719737B2

公开(公告)日：2010-05-18

申请号：US11969709

申请日：2008-01-04

申请人： Taku Amada ,  Seizo Suzuki ,  Akihisa Itabashi ,  Hiroyuki Suhara ,  Mitsuo Suzuki

发明人： Taku Amada ,  Seizo Suzuki ,  Akihisa Itabashi ,  Hiroyuki Suhara ,  Mitsuo Suzuki

IPC分类号： G02B26/08

CPC分类号： G02B26/123

摘要： An optical scanning device includes a laser-beam-phase-modulatable liquid crystal device. The liquid crystal device has stripe-like electrode patterns arranged in one direction, with a provision of a part for changing an effective value of a driving voltage separately for each of stripe-like electrode patterns.

摘要翻译： 光学扫描装置包括激光束相位调制液晶装置。 液晶装置具有沿一个方向布置的条状电极图案，其中提供用于单独改变每个条状电极图案的驱动电压的有效值的部分。

公开(公告)号：US07706040B2

公开(公告)日：2010-04-27

申请号：US11971227

申请日：2008-01-09

申请人： Taku Amada ,  Seizo Suzuki ,  Satoru Itoh ,  Tomohiro Nakajima

发明人： Taku Amada ,  Seizo Suzuki ,  Satoru Itoh ,  Tomohiro Nakajima

IPC分类号： G02B26/08

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

摘要： An optical scanning apparatus scans a surface to be scanned in a main scanning direction by simultaneously using a plurality of optical spots formed of a plurality of optical beams emitted from an illuminant, comprising: a light path deflecting part deflecting a light path of at least one of the optical beams, wherein the light path deflecting part is provided in light paths of the optical beams wherein the light path deflecting part may use a liquid crystal deflecting element formed of a liquid crystal element being controllable by an electronic signal to deflect the light path of the one of the optical beams.

摘要翻译： 光扫描设备通过同时使用由从光源发射的多个光束形成的多个光点来扫描主扫描方向上的扫描面，其特征在于，包括：光路偏转部，其偏转至少一个光路 的光路，其中光路偏转部分设置在光束的光路中，其中光路偏转部分可以使用由电子信号控制的液晶元件形成的液晶偏转元件，以使光路偏转 的一个光束。