公开(公告)号：US20120044316A1

公开(公告)日：2012-02-23

申请号：US13204922

申请日：2011-08-08

Applicant: Taku AMADA ,  Tomohiro Nakajima

Inventor： Taku AMADA ,  Tomohiro Nakajima

IPC: B41J2/47

CPC classification number: B41J2/473 ,  G02B7/1815

Abstract: 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.

Abstract translation: 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：US20080239433A1

公开(公告)日：2008-10-02

申请号：US12051404

申请日：2008-03-19

Applicant: Taku AMADA ,  Tomohiro Nakajima

Inventor： Taku AMADA ,  Tomohiro Nakajima

IPC: G02B26/08 ,  B41J15/04

CPC classification number: B41J2/473 ,  G02B26/124 ,  G03G15/0435 ,  G03G15/326 ,  G03G2215/0404

Abstract: 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.

Abstract translation: 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：US20080117487A1

公开(公告)日：2008-05-22

申请号：US11971227

申请日：2008-01-09

Applicant: Taku AMADA ,  Seizo Suzuki ,  Satoru Itoh ,  Tomohiro Nakajima

Inventor： Taku AMADA ,  Seizo Suzuki ,  Satoru Itoh ,  Tomohiro Nakajima

IPC: G02B26/10

CPC classification number: H04N1/1135 ,  B41J2/473 ,  G02B26/123

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20070097474A1

公开(公告)日：2007-05-03

申请号：US11566591

申请日：2006-12-04

Applicant: Taku AMADA ,  Takeshi Ueda

Inventor： Taku AMADA ,  Takeshi Ueda

IPC: G02B26/08

CPC classification number: H04N1/40006 ,  B41J2/473 ,  G02B26/123 ,  G02B26/127 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N1/40031 ,  H04N1/40037 ,  H04N1/4005 ,  H04N1/40056 ,  H04N2201/04765

Abstract: A light scanning apparatus that scans a scanned face with a light beam includes an adjusting unit that adjusts the position of a light spot of the light beam formed on the scanned face, and a compensating unit that compensates the light intensity of the light beam at the scanned face due to change caused by the adjustment of the position of the light spot. Accordingly, the light scanning apparatus can reduce or eliminate the deviation in exposure between scan lines of the multi-beam scan method and the deviation in exposure between photosensitive bodies of the tandem type image forming apparatus.

Abstract translation: 用光束扫描扫描面的光扫描装置包括：调节单元，其调节形成在扫描面上的光束的光点的位置;以及补偿单元，其补偿在扫描面上形成的光束的光强度 扫描面由于光斑位置调整引起的变化。 因此，光扫描装置可以减少或消除多光束扫描方法的扫描线之间的曝光偏差和串联型图像形成装置的感光体之间的曝光偏差。

公开(公告)号：US20220413107A1

公开(公告)日：2022-12-29

申请号：US17752856

申请日：2022-05-25

Applicant: Hiroyuki SATOH ,  Taku AMADA

Inventor： Hiroyuki SATOH ,  Taku AMADA

IPC: G01S7/4863 ,  G01S17/10 ,  G01S17/894

Abstract: A distance measurement apparatus includes multiple phototransmitters configured to emit light beams to a range to be measured; multiple photosensors each configured to receive a light beam reflected from an object within the range to be measured; and circuitry configured to calculate a distance to the object based on times of light emission of each of the phototransmitters and time of light reception of each of the photosensors. The photosensors outnumber the phototransmitters.

公开(公告)号：US20070189008A1

公开(公告)日：2007-08-16

申请号：US11691181

申请日：2007-03-26

Applicant: Taku AMADA ,  Kazuyuki Shimada

Inventor： Taku AMADA ,  Kazuyuki Shimada

IPC: B60Q1/26

CPC classification number: G02B26/123 ,  B41J2/473

Abstract: A multi-beam scanning apparatus includes a light source having first and second light source sections that hold a pair of semi-conductor laser diodes and coupling lenses that couple four beams irradiated from the pair of semi-conductor laser diodes with a base member. A light beam deviating device may be provided so as to deviate the four beams. A scan imaging device is also provided so as to scan a scan receiving surface with beam spots of the beams deviated by the light beam deviating device. A beam pitch-detecting device is also provided so as to detect a beam pitch of the respective beams formed on the scan-receiving surface. A beam pitch correcting device is provided in order to correct the beam pitch by causing relative deviation of a light axis among the respective beams on a sub scanning direction cross sectional plane.

Abstract translation: 多光束扫描装置包括具有保持一对半导体激光二极管的第一和第二光源部分的光源和将来自该对半导体激光二极管照射的四个光束与基底部件耦合的耦合透镜。 可以设置光束偏离装置以偏离四个光束。 还提供了扫描成像装置，以扫描受到光束偏离装置偏离的光束的光束点的扫描接收表面。 还提供了一种波束俯仰检测装置，以便检测形成在扫描接收表面上的各个波束的波束间距。 为了通过在副扫描方向横截面上引起各光束之间的光轴的相对偏离，来设定光束间距校正装置，以校正光束间距。

公开(公告)号：US20230036878A1

公开(公告)日：2023-02-02

申请号：US17840627

申请日：2022-06-15

Applicant: Keisuke IKEDA ,  Hiroyuki SATOH ,  Kenichiroh SAISHO ,  Taku AMADA ,  Soya HATAZAKI ,  Naoto NAKAMURA ,  Takashi TADA

Inventor： Keisuke IKEDA ,  Hiroyuki SATOH ,  Kenichiroh SAISHO ,  Taku AMADA ,  Soya HATAZAKI ,  Naoto NAKAMURA ,  Takashi TADA

IPC: G03B17/56 ,  H04N5/225 ,  H04N9/04 ,  G03B37/04 ,  G01S17/86

Abstract: An image-capturing device includes: an imager extending along a first axis, the imager configured to capture an image; and a grip coupled to the imager, extending along a second axis tilted to the first axis, and having an elongated shape to have a periphery thereof gripped with hand of an operator of the image-capturing device.

公开(公告)号：US20140268180A1

公开(公告)日：2014-09-18

申请号：US14208621

申请日：2014-03-13

Applicant: Atsushi TAKAURA ,  Koji MASUDA ,  Yasuhiro NIHEI ,  Takeshi UEDA ,  Koichi KUDO ,  Taku AMADA ,  Kenichi SHIMIZU ,  Asato TAMURA

Inventor： Atsushi TAKAURA ,  Koji MASUDA ,  Yasuhiro NIHEI ,  Takeshi UEDA ,  Koichi KUDO ,  Taku AMADA ,  Kenichi SHIMIZU ,  Asato TAMURA

IPC: G01B11/14

CPC classification number: G01B11/043 ,  G03G15/00 ,  G03G15/5054 ,  G03G2215/00616

Abstract: 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.

Abstract translation: 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：US20110310450A1

公开(公告)日：2011-12-22

申请号：US13117721

申请日：2011-05-27

Applicant: Taku AMADA ,  Hibiki Tatsuno

Inventor： Taku AMADA ,  Hibiki Tatsuno

IPC: G02B26/10

CPC classification number: G02B26/105 ,  G02B27/28 ,  G03G15/04072 ,  G03G15/0435 ,  G03G2215/0404

Abstract: An optical scanning device includes: a light source unit that includes a light emitting unit composed of a laser light source emitting linearly polarized light inside a package member; a deflector that deflects a light beam emitted from the light emitting unit; a pre-deflector optical system arranged on an optical path between the light emitting unit and the deflector; and a scanning optical system that scans a target surface to be scanned with the light beam deflected by the deflector. The pre-deflector optical system includes at least two parallel plate optical elements each composed of a transparent medium having an incident surface and an exit surface parallel to each other. The parallel plate optical elements are arranged to be tilted in inclination that is opposite to each other in a plane of polarization of the linearly polarized light.

Abstract translation: 光学扫描装置包括：光源单元，其包括由在封装构件内发射线偏振光的激光光源组成的发光单元; 偏转器，其使从所述发光单元发射的光束偏转; 布置在所述发光单元和所述偏转器之间的光路上的预偏转光学系统; 以及扫描光学系统，其用由偏转器偏转的光束扫描要扫描的目标表面。 预偏转光学系统包括至少两个平行板光学元件，每个平行板光学元件由具有彼此平行的入射表面和出射表面的透明介质构成。 平行板光学元件被布置成在线偏振光的偏振平面中彼此相对的倾斜倾斜。

公开(公告)号：US20080170282A1

公开(公告)日：2008-07-17

申请号：US11969709

申请日：2008-01-04

Applicant: Taku AMADA ,  Seizo Suzuki ,  Akihisa Itabashi ,  Hiroyuki Suhara ,  Mitsuo Suzuki

Inventor： Taku AMADA ,  Seizo Suzuki ,  Akihisa Itabashi ,  Hiroyuki Suhara ,  Mitsuo Suzuki

IPC: G02B26/08

CPC classification number: G02B26/123

Abstract: 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.

Abstract translation: 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。