公开(公告)号：US09304228B2

公开(公告)日：2016-04-05

申请号：US13955230

申请日：2013-07-31

Applicant: Tadashi Nakamura ,  Shigeaki Imai ,  Shuichi Suzuki ,  Mitsuru Nakajima ,  Kenichi Yoshimura ,  Hiroyoshi Funato

Inventor： Tadashi Nakamura ,  Shigeaki Imai ,  Shuichi Suzuki ,  Mitsuru Nakajima ,  Kenichi Yoshimura ,  Hiroyoshi Funato

IPC: G02B27/10 ,  G01V8/22 ,  G01S7/481 ,  G02B26/12

CPC classification number: G01V8/22 ,  G01S7/4817 ,  G02B26/123

Abstract: An object detection apparatus includes an incident optical system, which includes light source units and a combining unit combining light beams emitted from the light source units; a deflection unit including rotating reflection parts that deflect the light beams to scan and be irradiated on a predetermined range of an object; an imaging unit forming an image based on the light from the predetermined range of the object; and an optical detection unit detecting the object based on the light received via the imaging unit. Further the combining unit combines the light beams such that each of the combined light beams passes a single light path when projected onto a predetermined plane, and each of the light paths exists outside a region of the deflection unit when projected onto the first plane.

Abstract translation: 物体检测装置包括入射光学系统，其包括光源单元和组合单元，其组合从光源单元发射的光束; 偏转单元，其包括旋转的反射部分，其将所述光束偏转扫描并照射在物体的预定范围上; 成像单元，其基于来自所述对象的预定范围的光形成图像; 以及光学检测单元，其基于经由所述成像单元接收的光检测所述物体。 此外，组合单元组合光束，使得当投影到预定平面上时，组合的每个光束通过单个光路，并且当投影到第一平面上时，每个光路存在于偏转单元的区域的外部。

公开(公告)号：US20140009747A1

公开(公告)日：2014-01-09

申请号：US13930030

申请日：2013-06-28

Applicant: Shuichi SUZUKI ,  Mitsuru NAKAJIMA ,  Kenichi YOSHIMURA ,  Shigeaki IMAI ,  Tadashi NAKAMURA ,  Hiroyoshi FUNATO

Inventor： Shuichi SUZUKI ,  Mitsuru NAKAJIMA ,  Kenichi YOSHIMURA ,  Shigeaki IMAI ,  Tadashi NAKAMURA ,  Hiroyoshi FUNATO

IPC: G01S17/02

CPC classification number: G01S17/02 ,  G01S7/4817

Abstract: Disclosed is a laser radar device including a modulated light beam generator that emits light beams to a target, a photodetector that receives reflected light; a reflected light condenser that condenses the reflected light; a rotator that rotates around a rotation axis; and mirrors included in the rotator that scan the light beams, and guide the reflected light to the reflected light condenser, wherein an angular detection range in a vertical direction is divided into a plurality of layers, wherein mirror surfaces of the mirrors are tilted by corresponding tilt angles relative to the rotation axis, the tilt angles being different from each other, wherein the modulated light beam generator emits the light beams in the vertical direction, the light beams having different emission angles, and wherein a difference between the emission angles corresponds to the angular detection range of one layer in the vertical direction.

Abstract translation: 公开了一种激光雷达装置，其包括向目标发射光束的调制光束发生器，接收反射光的光电检测器; 聚光反射光的反射光聚光器; 围绕旋转轴旋转的旋转体; 以及包括在扫描光束的旋转体中的反射镜，并将反射光引导到反射光聚光器，其中垂直方向上的角度检测范围被分成多个层，其中反射镜的镜面被相应的 相对于旋转轴的倾斜角度，倾斜角度彼此不同，其中调制光束发生器沿垂直方向发射光束，光束具有不同的发射角，并且其中发射角之间的差对应于 垂直方向上一层的角度检测范围。

公开(公告)号：US5684779A

公开(公告)日：1997-11-04

申请号：US585437

申请日：1996-01-11

Applicant: Shigeru Ohuchida ,  Hiroyoshi Funato

Inventor： Shigeru Ohuchida ,  Hiroyoshi Funato

IPC: G11B7/09 ,  G11B7/12 ,  G11B7/135

CPC classification number: G11B7/1356 ,  G11B7/123 ,  G11B7/1353 ,  G11B7/0912

Abstract: An optical head which records data onto an optical data recording medium and reproduces the data therefrom includes a laser light source, a collimator lens, an objective lens, a light splitting device arranged between the laser light source and the objective lens, for splitting the emitted light from the laser light and a reflected light from the optical data recording medium. A diffraction grating is provided to which only the reflected light split at the light splitting device is incident to, and which leads the reflected light split at the optical element onto a photo-detector. Thereby, an optical head of high effectiveness in utilization of light and low cost can be obtained.

Abstract translation: 将数据记录到光学数据记录介质上并再现其数据的光学头包括激光光源，准直透镜，物镜，配置在激光光源和物镜之间的分光装置，用于将发射 来自激光的光和来自光学数据记录介质的反射光。 提供衍射光栅，仅在分光装置处分离的反射光入射到该衍射光栅上，并且将衍射光栅引导到光检测器处。 由此，可以获得光利用效率低，成本低的光头。

公开(公告)号：US5481636A

公开(公告)日：1996-01-02

申请号：US230243

申请日：1994-04-20

Applicant: Hiroaki Fukuda ,  Hiroyoshi Funato ,  Shigeyoshi Misawa

Inventor： Hiroaki Fukuda ,  Hiroyoshi Funato ,  Shigeyoshi Misawa

IPC: G02B6/12 ,  G02F1/377 ,  G02B6/10 ,  H01S3/10

CPC classification number: G02F1/3775 ,  G02B2006/12045 ,  G02B2006/12142

Abstract: A wavelength conversion element includes a substrate made of LiTaO.sub.3 of non-linear medium, a three-dimensional waveguide formed in the substrate and a second harmonic generation portion for defining a change in refractive index in the waveguide with a period .LAMBDA. and generating a second harmonic of a fundamental wave introduced into the wave guide, where .LAMBDA.=2 m.pi./{.beta.(2.omega.)-2.beta.(.omega.)}, m is a natural number, .omega. is a frequency of fundamental harmonic, .beta.(.omega.) is a propagation constant of the fundamental wave, and .beta.(2.omega.) is a propagation constant of second harmonic.

Abstract translation: 波长转换元件包括由非线性介质的LiTaO 3构成的衬底，形成在衬底中的三维波导和用于限定波长中的折射率随时间LAMBDA产生二次谐波的二次谐波产生部分 引入波导的基波，其中LAMBDA = 2m pi / {β（2ω）-2β（ω）}，m是自然数，ω是基波的频率，β（ω）是 基波的传播常数，β（2ω）是二次谐波的传播常数。

公开(公告)号：US5402154A

公开(公告)日：1995-03-28

申请号：US925858

申请日：1992-08-07

Applicant: Takashi Shibaguchi ,  Hiroyoshi Funato

Inventor： Takashi Shibaguchi ,  Hiroyoshi Funato

IPC: G02F1/055 ,  H04N1/40 ,  B41J2/435

CPC classification number: H04N1/40037 ,  G02F1/0551 ,  G02F1/0555

Abstract: An optical shutter device comprises an electro-optic layer of a material that shows the electro-optic Kerr effect, an array of shutter regions defined on the electro-optic layer for controlling a passage of an optical beam through the layer, a plurality of electrodes provided on the electro-optic layer in correspondence to the shutter regions for applying a predetermined electric field upon energization, a driver circuit connected to each pair of the electrodes for energizing the same independently from each other, a biasing circuit connected to the plurality of electrodes for applying a predetermined d.c. bias voltage thereto, a switching circuit for inverting the polarity of the d.c. bias voltage, a first polarizing device provided above the electro-optic layer for causing a rotation of the polarizing plane of the optical beam in a first angular direction, and a second polarizing device provided below the electro-optic layer for causing a rotation of the polarizing plane of the optical beam in a second, opposite angular direction.

Abstract translation: 光学快门装置包括显示电光克尔效应的材料的电光层，限定在电光层上的用于控制光束通过该层的通道的快门区阵列，多个电极 设置在电光层上，对应于用于在通电时施加预定电场的快门区域;驱动器电路，其连接到每对电极，用于彼此独立地激励相同的电极;偏置电路，连接到多个电极 用于施加预定直流 偏置电压，用于反转直流的极性的开关电路。 设置在电光层上方的第一偏振装置，用于使第一角度方向上的光束的偏振平面旋转，以及设置在电光层下方的第二偏振装置，用于使光束的旋转 光束的偏振平面在第二相反的角度方向上。

公开(公告)号：US4637679A

公开(公告)日：1987-01-20

申请号：US513091

申请日：1983-07-12

Applicant: Hiroyoshi Funato

Inventor： Hiroyoshi Funato

IPC: G02B26/10 ,  G02B26/12 ,  G02B27/10 ,  H04N1/113 ,  H04N1/19

CPC classification number: G02B27/1073 ,  G02B26/106 ,  G02B26/123 ,  H04N1/19

Abstract: In a laser printer or the like, for the purpose of increasing a recording speed, the number of revolutions of a laser beam deflector is not increased but a plurality of scanning lines are simultaneously scanned. To this end, a plurality of laser beams with an angle of incidence slightly varied are simultaneously incident upon one and the same laser beam deflector. In the event that places for installation of a plurality of light sources are hindered each other by other light sources, light sources different in polarization surface from each other are used, and when beams are combined by means of a polarization beam combiner, a combined beam which is different in angle of emergence through a fine angle each other can be obtained without loss of light.

Abstract translation: 在激光打印机等中，为了提高记录速度，不增加激光束偏转器的转数，而是同时扫描多条扫描线。 为此，具有入射角稍微变化的多个激光束同时入射在同一个激光束偏转器上。 在多个光源的安装场所被其他光源相互阻碍的情况下，使用偏光面彼此不同的光源，并且当通过偏振光束组合器组合光束时，组合光束 可以在不损失光的情况下获得彼此通过细小角度的出射角度不同的角度。

公开(公告)号：US20140044460A1

公开(公告)日：2014-02-13

申请号：US13957926

申请日：2013-08-02

Applicant: Koichi KUDO ,  Koji MASUDA ,  Hiroyoshi FUNATO ,  Takeshi UEDA ,  Yasuhiro NIHEI ,  Atsushi TAKAURA

Inventor： Koichi KUDO ,  Koji MASUDA ,  Hiroyoshi FUNATO ,  Takeshi UEDA ,  Yasuhiro NIHEI ,  Atsushi TAKAURA

IPC: G03G15/01

CPC classification number: G03G15/5054 ,  G03G2215/0129 ,  G03G2215/0141

Abstract: A moving-member detecting device includes an image acquiring unit and a speed calculating unit. The image acquiring unit includes a light source configured to emit a light beam to a detecting position of a moving member; an area sensor configured to acquire image data of a one- or two-dimensional image; and an area-sensor control unit configured to acquire the image data. The image acquiring unit is configured to acquire pieces of image data of the moving member at first and second positions, respectively, in a moving direction of the moving member so as to acquire the piece of position image data for the second position when the moving member is at the second position after acquiring the piece of image data for the first position. The speed calculating unit is configured to calculate a moving speed of the moving member from the pieces of image data.

Abstract translation: 移动构件检测装置包括图像获取单元和速度计算单元。 图像获取单元包括被配置为将光束发射到移动构件的检测位置的光源; 区域传感器，被配置为获取一维或二维图像的图像数据; 以及被配置为获取图像数据的区域传感器控制单元。 图像获取单元被配置为在移动部件的移动方向上分别在第一位置和第二位置获取移动部件的图像数据，以便当移动部件移动时获取第二位置的位置图像数据 在获取第一位置的图像数据之后处于第二位置。 速度计算单元被配置为从多条图像数据计算移动构件的移动速度。

公开(公告)号：US08373736B2

公开(公告)日：2013-02-12

申请号：US12534896

申请日：2009-08-04

Applicant: Hiroyoshi Funato ,  Kazunori Bannai ,  Daisuke Imaki ,  Yoshinori Hayashi ,  Makoto Hirakawa

Inventor： Hiroyoshi Funato ,  Kazunori Bannai ,  Daisuke Imaki ,  Yoshinori Hayashi ,  Makoto Hirakawa

IPC: B41J15/14 ,  B41J27/00

CPC classification number: G02B26/123 ,  G02B26/125 ,  G02B27/283 ,  G03G15/011 ,  G03G15/04036 ,  G03G15/0435 ,  G03G2215/0404

Abstract: P-polarized light beam passing through an fθ lens passes through a polarization beam splitter, is converted into S-polarized light beam by a quarter-wave plate and a reflecting mirror, re-enters the polarization beam splitter, and is reflected at the polarization beam splitter in the −Z direction. An optical path of a light beam between a polygon mirror and the fθ lens, between the fθ lens and the polarization beam splitter, between the polarization beam splitter and the quarter-wave plate, between the quarter-wave plate and a reflecting mirror, between the reflecting mirror and the quarter-wave plate, and between the quarter-wave plate and the polarization beam splitter are in the same plane.

Abstract translation: P偏振光束通过f＆thetas; 透镜通过偏振分束器，通过四分之一波片和反射镜转换成S偏振光束，重新进入偏振分束器，并在-Z方向上在偏振分束器处反射。 多面镜与光束之间的光束的光路; 镜头，镜头之间; 透镜和偏振分束器之间，在偏振分束器和四分之一波片之间，在四分之一波片和反射镜之间，在反射镜和四分之一波片之间，以及四分之一波片与 偏振分束器在同一平面内。

公开(公告)号：US20100310284A1

公开(公告)日：2010-12-09

申请号：US12696216

申请日：2010-01-29

Applicant: Hiroyoshi Funato ,  Shigeaki Imai ,  Koji Masuda ,  Hidemasa Suzuki

Inventor： Hiroyoshi Funato ,  Shigeaki Imai ,  Koji Masuda ,  Hidemasa Suzuki

IPC: G03G15/01 ,  G06K9/00

CPC classification number: G01S17/58 ,  G01P3/68 ,  G01P3/806 ,  G03G15/011 ,  G03G15/0194 ,  G03G2215/00645 ,  G03G2215/0129 ,  G03G2215/0141 ,  G03G2215/0196

Abstract: A velocity detecting device includes an image-pattern acquiring unit that includes a laser light source and an area sensor that acquires a one-dimensional or a two-dimensional image. The image-pattern acquiring unit includes a lens between a moving member and the area sensor, irradiates a beam emitted from the laser light source to the moving member to make a scattering light of the moving member scattered from the moving member on the area sensor by using the lens, and acquires an image pattern at a predetermined time interval in association with movement of the moving member. A velocity calculating unit calculates the velocity of the moving member by computing the image pattern acquired by the image-pattern acquiring unit. The lens is a reduced optical system that projects a reduced object onto the area sensor.

Abstract translation: 速度检测装置包括图像图案获取单元，其包括激光源和获取一维或二维图像的区域传感器。 图像图案获取单元包括在移动构件和区域传感器之间的透镜，将从激光源发射的光束照射到移动构件，以使移动构件的散射光从区域传感器上的移动构件散射， 使用透镜，并且以与移动构件的移动相关联的预定时间间隔获取图像图案。 速度计算单元通过计算由图像模式获取单元获取的图像图案来计算移动构件的速度。 透镜是将减少的物体投影到区域传感器上的缩小的光学系统。

公开(公告)号：US07177258B2

公开(公告)日：2007-02-13

申请号：US10971033

申请日：2004-10-25

Applicant: Shigeru Ohuchida ,  Hiroyoshi Funato

Inventor： Shigeru Ohuchida ,  Hiroyoshi Funato

IPC: G11B7/135

CPC classification number: G11B7/1263 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1362 ,  G11B7/1381 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An optical pickup apparatus used in an optical data recording/reproducing apparatus for reading/reproducing data on an optical recording medium, including a light source, a diffracting device configured to transmit a light beam and to diffract a light beam reflected from the optical recording medium, an optical device having a reflecting portion and a transmitting portion configured to reflect one part of the light beam emitted from the light source and to transmit another part of the light beam to the optical recording medium and from the optical recording medium, and a photodetecting device to detect the light beam from the optical recording medium for signal light detection, and the light beam reflected by the reflecting portion of the optical device for monitor light detection of the light source.

Abstract translation: 一种光学拾取装置，用于光学数据记录/再现装置中，用于在包括光源的光学记录介质上读取/再现数据，构造成透射光束并衍射从光学记录介质反射的光束的衍射装置 ，具有反射部分和透射部分的光学器件，其被配置为反射从光源发射的光束的一部分，并将光束的另一部分传输到光学记录介质和光学记录介质，以及光电检测 用于检测来自用于信号光检测的光学记录介质的光束的装置，以及由光学装置的反射部分反射的光束，用于光源的监视光检测。