公开(公告)号：US5208800A

公开(公告)日：1993-05-04

申请号：US683724

申请日：1991-04-11

Applicant: Tami Isobe ,  Shigeyoshi Misawa ,  Kiyoshi Yokomori ,  Syunsuke Fujita ,  Magane Aoki ,  Yoshinobu Nakayama ,  Hiroyoshi Funato

Inventor： Tami Isobe ,  Shigeyoshi Misawa ,  Kiyoshi Yokomori ,  Syunsuke Fujita ,  Magane Aoki ,  Yoshinobu Nakayama ,  Hiroyoshi Funato

IPC: G02B6/126 ,  G02B6/42 ,  G11B7/12 ,  G11B11/10 ,  G11B11/105

CPC classification number: G02B6/126 ,  G11B11/10543 ,  G11B7/124

Abstract: A magneto-optical signal detection device comprising a thin film type optical waveguide unit having a substrate on which a waveguide is formed. The unit has a coupling portion for coupling two polarization components simultaneously in a same plane of the waveguide as a TE mode and a TM mode. The modes TE and TM are included in reflection light reflected from a magneto-optical recording medium and perpendicular to each other. The unit also has a TE-TM mode separating portion having a taper boundary. A waveguide layer is gradually thinned in the taper boundary toward an outer end thereof.

Abstract translation: 一种磁光信号检测装置，包括具有形成波导的基板的薄膜型光波导单元。 该单元具有用于在波导的同一平面中同时耦合两个偏振分量的耦合部分，如TE模式和TM模式。 模式TE和TM包括在从磁光记录介质反射并且彼此垂直的反射光中。 该单元还具有具有锥形边界的TE-TM模式分离部。 波导层在锥形边界中朝向其外端逐渐变薄。

公开(公告)号：US4678263A

公开(公告)日：1987-07-07

申请号：US788528

申请日：1985-10-21

Applicant: Hiroyoshi Funato

Inventor： Hiroyoshi Funato

IPC: G02B5/18 ,  G02B5/32 ,  G02B13/00 ,  G02B26/10 ,  G03G15/04 ,  H04N1/113 ,  H04N1/23 ,  G02B26/08

CPC classification number: G02B13/0005 ,  G02B26/106

Abstract: A photo scanner device including a rotary disk having a plurality of holograms thereon and arranged in at least two concentric circles with respect to the axis of rotation of the disk, and a light source which generates a beam of light which is incident on the disk at a selected radial distance which may be varied so as to illuminate the holograms arranged on a selected concentric circle. The holograms on the same concentric circle each subtend the same angle from the axis, and the holograms on different concentric circles subtend different angles from the axis, thereby permitting the angle of scan to be switched by selection of the radial distance at which the beam of light is incident.

Abstract translation: 一种照相扫描器装置，包括：旋转盘，其上具有多个全息图并且相对于盘的旋转轴线布置在至少两个同心圆中;以及光源，其产生入射在盘上的光束 可选择的径向距离可以变化以照亮布置在所选择的同心圆上的全息图。 相同同心圆上的全息图与轴对齐相同的角度，并且不同同心圆上的全息图对应与轴的不同角度，从而允许通过选择径向距离来切换扫描角度， 光是事件。

公开(公告)号：US4623791A

公开(公告)日：1986-11-18

申请号：US701525

申请日：1985-02-14

Applicant: Yutaka Kaneko ,  Hiroyoshi Funato

Inventor： Yutaka Kaneko ,  Hiroyoshi Funato

IPC: G02B26/10 ,  H04N1/113 ,  H01J3/14

CPC classification number: G02B26/106

Abstract: An optical scanning device includes a grating disc for deflection which is provided with linear diffraction gratings in an annular arrangement and adapted to deflect a laser beam to optically scan a given plane by means of the deflected laser beam. The laser beam incident to the grating disc has an elliptical section in its incident position on the grating disc. The longer axis of the elliptical section extends in the radial direction of the grating disc.

Abstract translation: 光学扫描装置包括用于偏转的光栅盘，其设置有环形布置的线性衍射光栅，并且适于偏转激光束以借助于偏转的激光束光学扫描给定的平面。 入射到光栅盘的激光束在光栅盘上的入射位置具有椭圆形部分。 椭圆形部分的长轴在光栅盘的径向方向上延伸。

公开(公告)号：US4505537A

公开(公告)日：1985-03-19

申请号：US507177

申请日：1983-06-23

Applicant: Hiroyoshi Funato

Inventor： Hiroyoshi Funato

IPC: G02B26/10 ,  G02B27/17

CPC classification number: G02B26/106

Abstract: The present invention provides a light scanning apparatus including a semiconductor laser as its light source, a hologram disk having a plurality of equidistant linear gratings of hologram arranged in the form of a circle, which is driven to rotate at constant speed in a predetermined direction, a first optical system for leading the light from the laser to be incident upon one of the gratings, and a second optical system for leading the light diffracted by said one grating to a scanning surface. In one aspect, the second optical system is so structured to maintain the scanning surface to be in conjugate relation in geometric optics with the surface of said one grating thereby allowing to keep the scan line at a desired position even if the oscillation wavelength of the light varies. In another aspect, the incident angle of the light into the one grating is varied in accordance with the oscillation wavelength of the light so as to maintain a constant diffracted angle.

Abstract translation: 本发明提供了一种包括半导体激光器作为其光源的光扫描装置，具有多个以圆形排列的等距线性全息图线形光栅的全息图盘，其以预定方向以恒定速度被驱动， 用于引导来自激光器的光入射在其中一个光栅上的第一光学系统，以及用于将由所述一个光栅衍射的光引导到扫描表面的第二光学系统。 在一个方面，第二光学系统被构造成使得扫描表面在几何光学器件中与所述一个光栅的表面保持共轭关系，从而允许将扫描线保持在所需位置，即使光的振荡波长 不一样 另一方面，光入射到一个光栅中的入射角根据光的振荡波长而变化，以保持恒定的衍射角。

公开(公告)号：US4325601A

公开(公告)日：1982-04-20

申请号：US126698

申请日：1980-03-03

Applicant: Hiroyoshi Funato

Inventor： Hiroyoshi Funato

IPC: G02B5/32 ,  G02B26/10 ,  G02B27/17

CPC classification number: G02B26/106

Abstract: An optical scanning device shifting an optical spot on the scanning surface by rotating a hologram record medium on which a hologram is recorded, is so improved that, in recording a hologram, the incident angle of the principal ray of an object light and the incident angle of the principal ray of a reference light are so defined as to satisfy a particular condition, whereby even if the hologram record is inclined, the optical spot is not displaced.

Abstract translation: 通过旋转记录有全息图的全息图记录介质，在扫描面上移动光点的光学扫描装置被改善，使得在记录全息图时，物体的主光线的入射角和入射角 参考光的主光线被限定为满足特定条件，由此即使全息图记录是倾斜的，光点也不会移位。

公开(公告)号：US4154500A

公开(公告)日：1979-05-15

申请号：US784830

申请日：1977-04-05

Applicant: Hiroyoshi Funato ,  Nobuo Sakuma ,  Motoaki Kawazu

Inventor： Hiroyoshi Funato ,  Nobuo Sakuma ,  Motoaki Kawazu

IPC: G03B27/50 ,  G02B6/04 ,  G02B6/06 ,  G03B27/54 ,  G02B5/17 ,  G03B27/00

CPC classification number: G03B27/542 ,  G02B6/06

Abstract: In an electrostatic copying machine, a light source radiates an elongated, narrow beam of light onto an original document which is moved perpendicular to the beam of light for scanning. A plurality of imaging optical fibers are arranged in a row extending coextensively parallel to the light beam, which focus images of adjacent portions of the document onto a photoconductive member which is moved in a manner conjugate to the original document for scanningly forming an image of the document on the photoconductive member. The imaging optical fibers themselves extend parallel or at an angle to the document. First and second reflectors which may be mirrors or prisms are disposed between the document and imaging optical fibers and between the imaging optical fibers and the photoconductive member respectively to deflect the optical paths of the images. The light source may comprise a lamp and illuminating optical fibers which transmit light from the lamp onto the reflector disposed between the document and imaging optical fibers from which the light is reflected onto the document, thereby protecting the imaging optical fibers from heat damage.

Abstract translation: 在静电复印机中，光源将细长的窄光束照射到垂直于光束移动扫描的原稿上。 多个成像光纤被布置成与光束共同延伸的行延伸，其将文档的相邻部分的图像聚焦到以与原始文档共轭的方式移动的感光体上，以扫描形成图像的图像 文件在光导体上。 成像光纤本身与文件平行或成角度延伸。 第一反射器和第二反射器可以是反射镜或棱镜，分别设置在文件和成像光纤之间，并且分别设置在成像光纤和感光体之间，以偏转图像的光路。 光源可以包括灯和照明光纤，其将来自灯的光传输到布置在文档和成像光纤之间的反射器上，光从该光纤反射到文档上，从而保护成像光纤免受热损伤。

公开(公告)号：US20100034563A1

公开(公告)日：2010-02-11

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: G03G15/04 ,  G02B26/10

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: 通过透镜透镜的P偏振光束通过偏振分束器，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，并以偏振反射 分束器在-Z方向。 在多面镜和透镜之间的光束之间的光路，在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，四分之一波片和偏振分束器之间在同一平面内。

公开(公告)号：US06876621B2

公开(公告)日：2005-04-05

申请号：US09800586

申请日：2001-03-08

Applicant: Shigeru Ohuchida ,  Hiroyoshi Funato

Inventor： Shigeru Ohuchida ,  Hiroyoshi Funato

IPC: G02B5/18 ,  G02B5/30 ,  G02B5/32 ,  G11B7/00 ,  G11B7/125 ,  G11B7/13 ,  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。

公开(公告)号：US20050058051A1

公开(公告)日：2005-03-17

申请号：US10971033

申请日：2004-10-25

Applicant: Shigeru Ohuchida ,  Hiroyoshi Funato

Inventor： Shigeru Ohuchida ,  Hiroyoshi Funato

IPC: G02B5/18 ,  G02B5/30 ,  G02B5/32 ,  G11B7/00 ,  G11B7/125 ,  G11B7/13 ,  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。

公开(公告)号：US06754162B2

公开(公告)日：2004-06-22

申请号：US09897668

申请日：2001-07-02

Applicant: Kazuhiro Fujita ,  Hiroyoshi Funato ,  Hiroshi Koide

Inventor： Kazuhiro Fujita ,  Hiroyoshi Funato ,  Hiroshi Koide

IPC: G11B700

CPC classification number: G11B7/1395 ,  G11B7/0901 ,  G11B7/0948 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1378 ,  G11B7/13927 ,  G11B2007/0013

Abstract: In an optical pickup method and device of the present invention, a grating unit separates a light beam, emitted by a light source, into a 0th order diffracted beam and 1st order diffracted beams. An objective lens focuses the diffracted beams, sent from the grating unit, onto a recording surface of an optical recording medium through a transparent substrate of the medium, so that a main spot is formed on the recording surface by the 0th order diffracted beam and sub-spots, interposing the main spot therebetween, are formed on the recording surface by the 1st order diffracted beams. A reflection beam detector receives reflection beams from the main spot and the sub-spots of the medium to generate detection signals from the received reflection beams. A control unit changes a pattern of the beams incident to the objective lens to correct a spherical aberration due to a deviation of a thickness of the substrate of the medium, and moves the grating unit relative to the light source to cancel shifting of sub-spot positions on the recording surface due to the spherical aberration correction, in order to generate a proper tracking error signal.

Abstract translation: 在本发明的光拾取方法和装置中，光栅单元将由光源发射的光束分离为第0级衍射光束和一级衍射光束。 物镜将从光栅单元发送的衍射光束通过介质的透明基板聚焦到光记录介质的记录表面上，从而通过第0级衍射光束和子像素在记录表面上形成主光斑 通过1级衍射光束在记录面上形成插入其间的主光斑。 反射光束检测器接收来自主光点的反射光束和介质的子光点，以从接收的反射光束产生检测信号。 控制单元改变入射到物镜的光束的图案，以校正由于介质的基板的厚度偏差引起的球面像差，并且使光栅单元相对于光源移动以消除子点的移动 由于球面像差校正，记录表面上的位置，以便产生适当的跟踪误差信号。