公开(公告)号：DE69024170D1

公开(公告)日：1996-01-25

申请号：DE69024170

申请日：1990-10-16

Applicant: SONY CORP

Inventor： NARAHARA TATSUYA ,  KAMATANI YOSHITERU ,  NAKAO TAKASHI ,  MIYOSHI HIROSHI

IPC: G11B7/00 ,  G11B7/003 ,  G11B7/08 ,  G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B7/1359

Abstract: A servo control circuit for an image rotator (5) used in an optical tape recording apparatus that employs a rotary tape drum (6). Pairs of pulse generators (17,24) and frequency generators (18,22) are provided on the image rotator (5) and on the tape drum (6), respectively, Initially, the pulse generators (17,24) are used for servo control and, upon detecting a phase lock, servo control is subsequently switched over to be controlled by the frequency generators (18,22).

公开(公告)号：JP2010287309A

公开(公告)日：2010-12-24

申请号：JP2010173769

申请日：2010-08-02

Applicant: Sony Corp ,  ソニー株式会社

Inventor： NAKAO TAKASHI ,  NAKANO FUMIAKI ,  NISHI NORIAKI ,  ANDO NOBUHIKO ,  NAKAGAWA HIROAKI ,  AMATAKU YUTAKA

IPC: G11B7/09 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To generate a light receiving signal required for tracking control without affected by interlayer stray light. SOLUTION: In an optical disk device, a reflected light beam is diffracted, a reflected light beam comprising of zeroth-order light excluding one part of a region is made to progress almost straightly, it is detected by a light receiving part D1 of a photodetector 49, a light receiving signal is generated, a part reflected light beam of the first-order light is diffracted in the vertical direction respectively, it is received in a light receiving region D2, and the light receiving signal is generated, a part reflected light beam out of first-order light is diffracted to the horizontal direction respectively, it is received in a light receiving region D3 respectively, and the light receiving signal is generated. Thereby, in the optical disk device, a tracking error signal in which influence of stray light patterns W5, W50 formed respectively by interlayer stray beam from a plurality of recording layers is excluded can be generated, then, tracking control can be accurately performed. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：产生跟踪控制所需的光接收信号，而不受层间杂散光的影响。 解决方案：在光盘装置中，反射光束被衍射，使除了一部分区域以外的零级光包括的反射光束几乎直线地进行，由光接收部分D1 在光检测器49中，产生光接收信号，一级光的一部分反射光分别沿垂直方向衍射，在受光区D2中被接收，产生光接收信号， 一级光中的一部分反射光束分别衍射到水平方向，分别被接收在光接收区域D3中，并且产生光接收信号。 因此，在光盘装置中，可以产生排除来自多个记录层的由层间杂散光束分别形成的杂散光图案W5，W50的影响的跟踪误差信号，能够准确地进行追踪控制。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2008217190A

公开(公告)日：2008-09-18

申请号：JP2007051032

申请日：2007-03-01

Applicant: Sony Corp ,  ソニー株式会社

Inventor： HASHIMOTO GAKUJI ,  OSATO KIYOSHI ,  ICHIMURA ISAO ,  WATANABE TOSHIO ,  NAKAO TAKASHI ,  YAMAMOTO KENJI ,  SATO HIDEO ,  KAJIWARA ATSUSHI ,  HAYASAKA KENGO

IPC: G06T1/00 ,  A61B5/117 ,  G06F21/20

CPC classification number: G06K9/20 ,  G06K2009/00932 ,  G07C9/00158

Abstract: PROBLEM TO BE SOLVED: To provided a biological authentication device allowing materialization of high accuracy and high safety. SOLUTION: Shape information (two-dimensional information) of a plurality of layers inside a living body 2 can be obtained by imaging vein information while changing a refractive index of a micro lens array having a plurality of micro lenses each capable of changing a refractive index. By combining the two dimensional information corresponding to the plurality of layers obtained like this and the respective focus positions, and performing image processing, three-dimensional vein shape information can be obtained. As compared to the case that authentication is performed based on the two-dimensional information, an information amount used for the authentication increases. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够实现高精度和高安全性的生物认证装置。 解决方案：通过对静脉信息进行成像，同时改变具有多个能够改变的多个微透镜的微透镜阵列的折射率，可以获得活体2内的多个层的形状信息（二维信息） 折射率。 通过组合与这样获得的多个层对应的二维信息和各个聚焦位置，并且执行图像处理，可以获得三维静脉形状信息。 与基于二维信息进行认证的情况相比，用于认证的信息量增加。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007305254A

公开(公告)日：2007-11-22

申请号：JP2006134192

申请日：2006-05-12

Applicant: Sony Corp ,  ソニー株式会社

Inventor： ICHIMURA ISAO ,  NAKAO TAKASHI ,  HINENO SATORU

IPC: G11B7/135

CPC classification number: G11B7/139 ,  G11B7/1356 ,  G11B7/1359 ,  G11B7/1378 ,  G11B7/13925 ,  G11B2007/0013

Abstract: PROBLEM TO BE SOLVED: To realize an optical pick up and optical disk unit which can eliminate effect of stray light of a multi layer optical disk with a simple configuration. SOLUTION: The optical disk unit is provided with an objective lens 9 for condensing optical beam on a focused recording layer of an optical disk 100 and receiving reflective beam; a condenser lens 20 for condensing the reflective beam received by the objective lens 9; and a stray light eliminating element 30 for eliminating the stray light from the reflected light beam having a boundary surface formed at a position away from a focal point by a prescribed distance where the focused light out of the reflected light beam reflected on the focused recording layer is condensed by the condenser lens 20 on the surface including the light axis of the reflected light beam condensed by the condenser lens 20, and reflecting only the stray light out of the reflected beam reflected on a non focused recording layer on the boundary surface. Accordingly only the stray light reflected on the non focused layer out of the reflected light beam reflected by the optical disk is reflected on the boundary, so that the stray light entering on the light receiving means is surely eliminated. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：实现能够以简单的结构消除多层光盘的杂散光的影响的光学拾取和光盘单元。 解决方案：光盘单元设置有用于将光束聚集在光盘100的聚焦记录层上并接收反射光束的物镜9; 用于聚光由物镜9接收的反射光束的聚光透镜20; 以及用于消除来自反射光束的杂散光的杂散光消除元件，该反射光束具有形成在远离焦点的位置上的边界表面一定距离，其中反射光束在聚焦记录层上反射的聚焦光 在聚光透镜20的聚光透镜20的聚光透镜20的聚光透镜20的聚光记录层上反射的反射光束的反射光束上仅反射杂散光。 因此，仅在由光盘反射的反射光束中的非聚焦层上反射的杂散光在边界上被反射，从而可靠地消除进入光接收装置的杂散光。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2003303433A

公开(公告)日：2003-10-24

申请号：JP2002104987

申请日：2002-04-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMAMOTO KENJI ,  NAKAO TAKASHI ,  OSATO KIYOSHI

IPC: G11B7/125 ,  G11B7/135

CPC classification number: G11B7/1369 ,  G11B7/1263

Abstract: PROBLEM TO BE SOLVED: To adapt a beam spot converging to a recording layer of an optical recording medium so as to have the light intensity corresponding to the characteristic such as the position from a surface of the recording layer, the sensitivity, etc., by adjusting the light quantity of laser beams divided with PBS to go toward an objective lens without using a mechanical means. SOLUTION: In the optical pickup 12 provided with a laser beam source 17, a polarizing beam splitter 20 and an objective lens 15 for converging the laser beams transmitted through the polarizing beam splitter to a recording layer 100a of an optical recording medium 100 to form a beam spot, a polarization control means 19 consisting of a single or a plurality of liquid crystal panels is arranged between the laser beam source and the polarizing beam splitter, and with this polarization control means, the polarization of the laser beam transmitting through the liquid crystal panel is made so as to be changed in accordance with the voltage applied on the liquid crystal panel 19a. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题是：使光束聚光到光记录介质的记录层上以使其具有与记录层表面的位置，灵敏度等特性对应的光强度 通过调整与PBS分开的激光束的光量而不使用机械装置朝向物镜。 解决方案：在具有激光束源17的光学拾取器12中，偏振分束器20和用于将透过偏振分束器的激光束会聚到光学记录介质100的记录层100a的物镜15 为了形成光束点，在激光束源和偏振光束分离器之间配置由单个或多个液晶面板组成的偏振控制装置19，并且利用该偏振控制装置，激光束的透射通过 使液晶面板根据施加在液晶面板19a上的电压而变化。 版权所有（C）2004，JPO

公开(公告)号：JPH08235608A

公开(公告)日：1996-09-13

申请号：JP3552895

申请日：1995-02-23

Applicant: SONY CORP

Inventor： DOI MASATO ,  NARUI HIRONOBU ,  NAKAO TAKASHI

IPC: G11B11/10 ,  G11B7/00 ,  G11B7/004 ,  G11B7/09 ,  G11B7/12 ,  G11B7/123 ,  G11B11/105 ,  G11B7/135

Abstract: PURPOSE: To obtain an optical device such as an optical pickup, etc., which has reduced number of components, can be simplified in an alignment operation when setting an optical arrangement, can be simplified and miniaturized as a whole and can perform a stable tracking servo operation by making use of the advantage of a push-pull method. CONSTITUTION: An optical device is provided with a light-emitting part 4, with a convergence means 3 and with a light-receiving part 5. Radiated light LF from the light-emitting part 4 is converged by means of the convergence means 3 so as to irradiate a part 2, to be irradiated, by, and returne light LR reflected from the irradiated part 2 is converged. Then, the light-receiving part 5 is arranged near a confocal point regarding the return light LR from the irradiated part 2, for the convergence means 3. The radiated light LF from the light- emitting part 4 is passed through a coaxial route before and after it is reflected in the irradiated part 2, and it is received by the light-receiving part 5. By this constitution, a signal is detected in the light-receiving part 5 by a push-pull method.

公开(公告)号：JPH04184408A

公开(公告)日：1992-07-01

申请号：JP31558090

申请日：1990-11-20

Applicant: SONY CORP

Inventor： KABAYA YOSHITERU ,  NAKAO TAKASHI ,  OSATO KIYOSHI ,  OSUE TADASHI

IPC: G02B7/18 ,  G11B7/08 ,  G11B7/09

Abstract: PURPOSE:To make the deflection of a laser beam minimum by attaching a 2nd holder so that its tilt can be adjusted to a 1st holder. CONSTITUTION:The 1st holder 5 is interposed between the 2nd holder 6 which supports a rotator prism 2 and an outside fixed housing 3, so that the tilt of the center of rotation of the prism 2 against the center of the rotation of a rotator can be adjusted in the longitudinal directions of the 1st and the 2nd holders 5 and 6. Furthermore, the housing 3 is attached to a base 1 so that its position can be freely adjusted. Therefore, the position of the center of the rotation of the prism 2 against the center of the rotation of the rotator is adjusted on the plane 1a of the base 1. Thus, the tilt of the center of the rotation and the position of the prism 2 against the center of the rotation of the rotator are easily and accurately adjusted, and the centers of the rotation of both of them are accurately and easily aligned, and the deflection of the laser beam is made minimum.

公开(公告)号：JPH02101644A

公开(公告)日：1990-04-13

申请号：JP25391188

申请日：1988-10-11

Applicant: SONY CORP

Inventor： NAKAO TAKASHI ,  KUMAI SATOSHI

IPC: G11B7/135

Abstract: PURPOSE:To attain power saving and the miniaturization of an optical head device by arranging a movable part required for focusing control and tracking control, etc., in the neighborhood of the center axis of the rotation of a rotary drum. CONSTITUTION:The focusing control can be attained by performing the moving control of a collimation lens L1 in a direction of (b) by a driving circuit 20 based on a signal supplied from a focusing servo circuit, and the tracking control can be attained by performing the conversion of the angle of a polarizing beam splitter BS in a direction of (c) by a driving circuit 21 based on the signal supplied from a tracking servo circuit. At this time, since the conversion of the positions or the angles of the collimation lens L1 and the polarizing beam splitter BS are performed almost in the center axis a-a' of the rotation, it is enough to prepare driving devices provided ordinary driving forces as the driving devices 20 and 21.

公开(公告)号：JP2014232556A

公开(公告)日：2014-12-11

申请号：JP2013111740

申请日：2013-05-28

Applicant: ソニー株式会社 ,  Sony Corp

Inventor： YAMAMOTO KENJI ,  NAKAO TAKASHI ,  SAITO KIMIHIRO

IPC: G11B7/135 ,  G11B7/004

CPC classification number: G11B7/005 ,  G11B7/135 ,  G11B7/1369 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1381 ,  G11B7/1395 ,  G11B7/1398 ,  G11B20/10009

Abstract: 【課題】構成の複雑化を生じることなく、トラック間のクロストークを低減する。【解決手段】複数トラックが形成される光媒体を光学的に再生する光媒体再生装置は、光媒体から戻る、対物レンズの瞳の形状に応じて、ビーム径11を外側部分の第1の領域、内側部分の第2の領域12に分割し、第1の領域の第1の検出信号および第2の領域の第2の検出信号を使用してトラック間のクロストークを低減する。【選択図】図3

Abstract translation: 要解决的问题：通过避免配置的复杂性来减少轨道之间的串扰。解决方案：本发明提供一种光学介质再现装置，其光学地再现其上形成有多个轨道的光学介质，其中从该 光学介质根据物镜的光瞳的形状被分成外部部分的第一区域和内部区域的第二区域12，并且通过使用第一检测信号的第一检测信号来减小轨道之间的串扰 区域和第二区域的第二检测信号。

公开(公告)号：JP2014049142A

公开(公告)日：2014-03-17

申请号：JP2012188348

申请日：2012-08-29

Applicant: Sony Corp ,  ソニー株式会社

Inventor： SAITO KIMIHIRO ,  NAKAO TAKASHI ,  AMATAKU YUTAKA

IPC: G11B7/135 ,  G11B7/09

CPC classification number: G11B7/1381 ,  G11B7/0901 ,  G11B2007/0013

Abstract: PROBLEM TO BE SOLVED: To solve the problem that stray light diffracted by grooves in other layers and entering a photodetector prevents good tracking error detection.SOLUTION: An optical pickup includes: a light source; an objective lens for converging light from the light source toward one signal surface of an optical disk having two or more signal surfaces on each of which grooves are formed; a photodetector whose light receiving region is divided into four light receiving regions by a division line substantially parallel to the track direction of the optical disk and a division line substantially perpendicular to the track direction, and which receives return light from the optical disk; and a light blocking part arranged on the light incident side of the photodetector and blocking at least diffraction light diffracted by the grooves in the return light from the signal surfaces other than the one signal surface of the optical disk.

Abstract translation: 要解决的问题：为了解决由其他层中的凹槽衍射的杂散光并进入光电检测器的问题，可以防止良好的跟踪误差检测。解决方案：光学拾取器包括：光源; 用于将来自光源的光会聚到具有形成有每个沟槽的两个或更多个信号表面的光盘的一个信号表面的物镜; 其光接收区域通过基本上平行于光盘的轨道方向的分割线划分为四个光接收区域和基本上垂直于轨道方向的分割线，并且接收来自光盘的返回光; 以及遮光部，其配置在光检测器的光入射侧，并且至少阻挡来自除了光盘的一个信号面以外的信号面的返回光中的槽衍射的衍射光。