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1. 发明专利

JP2003036557A Optical pickup device and optical information recording/ reproducing apparatus using the same 审中-公开
标题翻译：光学拾取装置和光信息记录/再现装置
公开(公告)号：JP2003036557A
公开(公告)日：2003-02-07
申请号：JP2001220835
申请日：2001-07-23
申请人： Hitachi Ltd , Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス , 株式会社日立製作所
发明人： SHIMADA KENICHI , ONISHI KUNIKAZU , SUGIYAMA TOSHIO , KONUMA YOSHIHIRO , YABE AKIO , ITO NAOKI , TODORI KAZUHIRO , TOMITA DAISUKE
IPC分类号： G11B7/09 , G11B7/135
摘要： PROBLEM TO BE SOLVED: To provide a miniaturized and low-price optical pickup device which can detect a servo signal well and can record, for a plurality of kinds of optical disks whose disk guide groove pitches are different. SOLUTION: The optical pickup device is used, in which five laser beams are concentrated on the optical disk using a grating 2a, and which selects the laser beam to be used for detecting the servo signal in accordance with the kind of the optical disk to be reproduced or recorded. A first, a second, a third, a fourth, and a fifth acceptance regions are provided at respective positions to which the five beams reflected by the optical disk are concentrated in a photodetector 9a, in which an acceptance surface which is divided into four like a cross-in-square shape is provided in at least one acceptance region.
摘要翻译：要解决的问题：为了提供一种可以很好地检测伺服信号并可以记录盘导向槽间距不同的多种光盘的小型化和低价格的光学拾取装置。解决方案：使用光拾取装置，其中使用光栅2a将五个激光束集中在光盘上，并且根据光盘的种类选择要用于检测伺服信号的激光束转载或录制。第一，第二，第三，第四和第五接收区域设置在光盘反射的五个光束集中在光电检测器9a中的各个位置处，其中接收表面被分成四个像在至少一个接受区域中提供十字形形状。

2. 发明专利

JP2008103037A Optical pickup device and optical disk device provided with the same 审中-公开
标题翻译：光学拾取器件和光源装置
公开(公告)号：JP2008103037A
公开(公告)日：2008-05-01
申请号：JP2006285670
申请日：2006-10-20
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： TOMITA DAISUKE , YABE AKIO , TODORI KAZUHIRO
IPC分类号： G11B7/135
CPC分类号： G11B7/1392 , G11B7/1356 , G11B2007/0006
摘要： PROBLEM TO BE SOLVED: To provide a compact optical pickup device which can perform at least either one of recording or reproducing information by using a laser beam emitted from the same light emitting element with respect to two kinds of information recording/reproducing media different in substrate thickness, and to provide an optical disk device provided with the optical pickup device. SOLUTION: The optical pickup device is provided with: a light emitting element; a first objective lens for converging a laser beam emitted from the light emitting element on a first optical disk; a second objective lens for converging a laser beam emitted from the light emitting element on a second optical disk; a light receiving element receiving the laser beam reflected by the first optical disk or the second optical disk and generating a signal; and an optical system for dividing the laser beam emitted from the light emitting element for the first objective lens and the second objective lens. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种紧凑型光学拾取装置，其可以通过使用从相同发光元件发射的激光束相对于两种信息记录/再现介质执行记录或再现信息中的至少一个不同的基板厚度，并提供设置有光学拾取装置的光盘装置。光拾取装置设置有：发光元件; 用于将从所述发光元件发射的激光束会聚在第一光盘上的第一物镜; 用于将从所述发光元件发射的激光束会聚在第二光盘上的第二物镜; 接收由第一光盘或第二光盘反射并产生信号的激光束的光接收元件; 以及用于分割从用于第一物镜和第二物镜的发光元件发射的激光束的光学系统。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008065889A Optical pickup device and manufacturing method thereof 审中-公开
标题翻译：光学拾取装置及其制造方法
公开(公告)号：JP2008065889A
公开(公告)日：2008-03-21
申请号：JP2006240943
申请日：2006-09-06
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： HADO JUN , YABE AKIO , SAITO HIDENAO , TODORI KAZUHIRO , TAKAHASHI TOSHIMITSU
IPC分类号： G11B7/09 , G11B7/08 , G11B7/135 , G11B7/22
摘要： PROBLEM TO BE SOLVED: To provide the manufacturing method of an optical pickup device wherein the relative tilt of at least two objective lenses is adjusted so as to obtain a satisfactory reproduction signal. SOLUTION: A second objective lens 2 is irradiated with a luminous flux to adjust the tilt of the whole objective lens driving apparatus 11 by utilizing the luminous flux outgoing from the objective lens 2, and the objective lens driving apparatus 11 is fixed to an optical base 19 with an adhesive. Next, while a first objective lens 1 is irradiated with a luminous flux and a holder 3 for adjusting a tilt where the objective lens 1 is placed is held with fixtures, the tilt of the holder 3 for adjusting the tilt is adjusted by utilizing the luminous flux outgoing from the objective lens 1, and the holder 3 for adjusting the tilt is fixed to a lens holder 4 with the adhesive. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学拾取装置的制造方法，其中调整至少两个物镜的相对倾斜度以获得令人满意的再现信号。解决方案：利用光束照射第二物镜2，通过利用从物镜2出射的光束来调整整个物镜驱动装置11的倾斜，并将物镜驱动装置11固定到具有粘合剂的光学基座19。接下来，当第一物镜1被照射光束时，并且用于调整放置物镜1的倾斜的保持器3被夹持固定装置，用于调整倾斜的保持器3的倾斜通过利用发光从物镜1出射的光束和用于调节倾斜的保持器3用粘合剂固定到透镜保持器4。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2011076660A Lens driving device and optical pickup 审中-公开
标题翻译：镜头驱动装置和光学拾取
公开(公告)号：JP2011076660A
公开(公告)日：2011-04-14
申请号：JP2009225877
申请日：2009-09-30
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： SATO YOSHIHIRO , KINOSHITA YASUSHI , TODORI KAZUHIRO , SAITO HIDENAO
IPC分类号： G11B7/135 , G11B7/125
摘要： PROBLEM TO BE SOLVED: To provide a lens driving device which precisely corrects spherical aberration by improving drive followability of a rack that is a component of the lens driving device. SOLUTION: The lens driving device is provided with a lens 4, a holder 2 which holds the lens 4, a transmission component 1 which transmits a driving force provided from a motor 5, and a driving means 3 which transmits a force to the transmission component 1. The transmission component 1 includes a projecting part whose size in a first driving axis perpendicular direction is not smaller than one-third power of twice the size in a second driving axis perpendicular direction. In another embodiment, the lens driving device is provided with a lens 4, a holder 2 which holds the lens 4, a transmission component 1 which transmits a driving force provided from a motor 5, and a driving means 3 which transmits a force to the transmission component 1. The transmission component 1 includes a recessed part which is fitted to a projecting part provided in the holder 2. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过提高作为透镜驱动装置的部件的支架的驱动跟随性来精确校正球面像差的透镜驱动装置。解决方案：透镜驱动装置设置有透镜4，保持透镜4的保持件2，传递由马达5提供的驱动力的传动部件1和将力传递到传动部件1包括突出部，其在第一驱动轴垂直方向上的尺寸不小于第二驱动轴垂直方向上的尺寸的三分之一功率。在另一个实施例中，透镜驱动装置设置有透镜4，保持透镜4的保持器2，透射从电动机5提供的驱动力的传输部件1和向电动机5传递力的驱动装置3 变速部件1包括嵌入到设置在保持器2中的突出部的凹部。（C）2011年，JPO＆INPIT

5. 发明专利

JP2005100519A Optical pickup and optical disk unit 有权
标题翻译：光学拾取和光盘单元
公开(公告)号：JP2005100519A
公开(公告)日：2005-04-14
申请号：JP2003331988
申请日：2003-09-24
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： KONUMA YOSHIHIRO , TOMITA DAISUKE , OTA MITSUHIKO , TODORI KAZUHIRO , OKUDA TADASHI
IPC分类号： G11B7/08 , G11B7/09 , G11B7/125 , G11B7/135
摘要： PROBLEM TO BE SOLVED: To provide a simple optical pickup which condenses light on a optical disk in a favorable spot state, and provides good resolution. SOLUTION: The optical pickup comprises: a 1st light source and a 2nd light source differing in emission wavelengths; a 1st mirror which reflects the light from the 1st light source and transmits the light returning from the optical disk; a 2nd mirror which reflects the light from the 1st mirror and transmits the light from the 1st mirror and reflects the light returning from the optical disk; an optical system which condenses the light reflected or transmitted by the 2nd mirror on the optical disk and guides the light returning from the optical disk to the 2nd mirror; and a light receiving element for receiving the light which is reflected by the optical disk, guided to the 2nd mirror by the optical system, reflected by the 2nd mirror, and transmitted by the 1st mirror. Herein, an aberration generating optical element is provided between the 2nd light source and the 2nd mirror, and an amount of aberration being the total of an amount of aberration occurring when the light emitted from the 2nd light source is transmitted through the 2nd mirror before reaching the optical disk and an amount of aberration occurring in the aberration generating optical element is set so as to be smaller than an amount of aberration occurring when the light passes through the 2nd mirror. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种简单的光学拾取器，其以良好的光斑状态将光聚集在光盘上，并提供良好的分辨率。光拾取器包括：第一光源和发射波长不同的第二光源; 第一反射镜，其反射来自第一光源的光并透射从光盘返回的光; 第二反射镜，其反射来自第一反射镜的光并透射来自第一反射镜的光并反射从光盘返回的光; 光学系统，其将由第二反射镜反射或透射的光聚光在光盘上，并将从光盘返回的光引导到第二反射镜; 以及光接收元件，用于接收由光盘反射的光，被光学系统引导到第二反射镜，由第二反射镜反射并由第一反射镜传输。这里，像差产生光学元件设置在第二光源和第二反射镜之间，并且像差是当从第二光源发射的光通过第二反射镜到达之前发生的像差的总和的总和将光盘和像差产生光学元件中出现的像差量设置为小于当光通过第二反射镜时发生的像差量。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2011054222A Optical pickup 审中-公开
标题翻译： OPTICAL PICKUP
公开(公告)号：JP2011054222A
公开(公告)日：2011-03-17
申请号：JP2009200072
申请日：2009-08-31
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： TODORI KAZUHIRO , HADO JUN , YABE AKIO , OSADA TOSHIO , KUROSAWA YOKO
IPC分类号： G11B7/12
摘要： PROBLEM TO BE SOLVED: To provide an optical pickup with improved yield. SOLUTION: The optical pickup is provided with: an optical base with a laser diode for emitting laser light fixed thereon; a wiring board having a diode mounted thereon which detects reflected light reflected by an optical disk of the laser light emitted from the laser diode; and a radiation plate which is formed using a material having a lower specific heat capacity than the optical base and which is disposed at the fixing position of the wiring board in the optical base. The wiring board is fixed to the radiation plate using a photocurable adhesive or a thermosetting adhesive. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供具有提高的产量的光学拾取器。光拾取器设置有：具有激光二极管的光学基座，用于发射固定在其上的激光; 安装有二极管的布线板，其检测从激光二极管发射的激光的光盘反射的反射光; 以及辐射板，其使用具有比所述光学基座更低的比热容的材料形成，并且设置在所述光学基座中的所述布线板的固定位置。使用可光固化的粘合剂或热固性粘合剂将布线板固定到辐射板。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2008059644A Optical pickup device and optical disk device provided with the same 审中-公开
标题翻译：光学拾取器件和光源装置
公开(公告)号：JP2008059644A
公开(公告)日：2008-03-13
申请号：JP2006233042
申请日：2006-08-30
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： YABE AKIO , SUGIYAMA TOSHIO , TOMITA DAISUKE , TODORI KAZUHIRO , TAYAMA TAKASHI
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/12 , G11B7/1356 , G11B2007/0006
摘要： PROBLEM TO BE SOLVED: To provide a small optical pickup which can perform at least recording or reproduction to/from two or more information recording and reproducing medium whose wavelengths of recording or reproducing light are different from each other. SOLUTION: The optical pickup device comprises two or more light sources emitting luminous fluxes whose wave lengths are different from each other, an objective lens for focusing the respective luminous fluxes emitted from the two or more light sources on the information recording surface of an information recording medium, and an optical element which reflects a first luminous flux incident from a prescribed direction and a second luminous flux from a position opposite to a side on which the first luminous flux are made incident and which is different in the direction of the optical axis of the objective lens nearly in parallel to the optical axis of the objective lens. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种小型光学拾取器，其可以对从其记录或再现光的波长彼此不同的两个或更多个信息记录和再现介质执行至少记录或再现。光拾取装置包括发射光束彼此不同的光束的两个或更多个光源，用于将从两个或更多个光源发射的各个光束聚焦在信息记录表面上的物镜信息记录介质和反射从规定方向入射的第一光束和第二光束的光学元件，所述光学元件从与所述第一光束入射的一侧相反的位置反射，并且在所述光学元件的方向上不同物镜的光轴几乎与物镜的光轴平行。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2012221519A Optical pickup 有权
标题翻译： OPTICAL PICKUP
公开(公告)号：JP2012221519A
公开(公告)日：2012-11-12
申请号：JP2011083995
申请日：2011-04-05
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： KINOSHITA YASUSHI , HADO JUN , TODORI KAZUHIRO
IPC分类号： G11B7/12 , G11B7/09 , G11B7/126 , G11B7/1392 , G11B21/02
CPC分类号： G11B7/1376 , G11B7/22
摘要： PROBLEM TO BE SOLVED: To improve environment resistance characteristics of an optical pickup by miniaturizing a collimator lens moving mechanism and reinforcing an optical pickup housing in a space created thereby.SOLUTION: The optical pickup including a lens moving mechanism comprises: a lens; a lens holder for holding the lens; a guide member for guiding the lens holder; a lead screw having a screw groove; a motor for rotating the lead screw; a rack gear including a body part fixed to the lens holder and a claw part fitted in the screw groove of the lead screw. An arm for connecting the body part and the claw part of the rack gear is formed such that a cross-sectional shape of a plane perpendicular to the rotary axis direction of the lead screw becomes a convex shape, a concave shape and a wave shape. The width direction of the rack gear can be shortened by an improvement in torsional rigidity of the rack gear so as to miniaturize the collimator lens moving mechanism.
摘要翻译：要解决的问题：通过使准直透镜移动机构小型化并在由此产生的空间中加强光学拾取器壳体来改善光学拾取器的耐环境特性。解决方案：包括透镜移动机构的光学拾取器包括：透镜; 用于保持透镜的透镜保持器; 用于引导透镜保持器的引导构件; 具有螺纹槽的导螺杆; 用于旋转导螺杆的马达; 齿条，其包括固定到透镜保持件的主体部分和装配在丝杠的螺纹槽中的爪部。用于连接齿条的主体部分和爪部分的臂形成为使得与螺杆的旋转轴线方向垂直的平面的横截面形状为凸形，凹形和波形。可以通过提高齿条的扭转刚性来缩短齿条的宽度方向，从而使准直透镜移动机构小型化。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2011181146A Optical pickup 审中-公开
标题翻译： OPTICAL PICKUP
公开(公告)号：JP2011181146A
公开(公告)日：2011-09-15
申请号：JP2010045529
申请日：2010-03-02
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： HADO JUN , YABE AKIO , TODORI KAZUHIRO , TOMITA DAISUKE
IPC分类号： G11B7/09 , G11B7/135
CPC分类号： G11B7/135
摘要： PROBLEM TO BE SOLVED: To solve the following problem: in an optical pickup shared by DVD/CD and BD, when a total reflecting mirror is mounted therein for the purpose of reducing thickness thereof, cavity for transmitting a laser beam is required and as a result, a degree of freedom for locating a tracking coil and a magnet is reduced, and secondary resonance due to magnetic thrust in a tracking direction tends to occur and improvement is necessary. SOLUTION: In a lens coil holder on which an objective lens and a tracking coil of an optical pickup are mounted, each coil is located so that a balance of thrust to a center of a suspension wire supporting the lens coil holder is achieved. For example, most of tracking coils are positioned in one height direction with respect to the suspension wire, and tilt coils are positioned in the other remaining height direction. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决以下问题：为了解决以下问题：在DVD / CD和BD共用的光学拾取器中，为了减小其厚度而将全反射镜安装在其中时，需要用于传输激光束的空腔结果，用于定位跟踪线圈和磁体的自由度降低，并且趋向于发生由跟踪方向上的磁推力引起的二次谐振并且需要改进。解决方案：在其上安装有光学拾取器的物镜和跟踪线圈的透镜线圈保持器中，每个线圈被定位成使得实现了支撑透镜线圈架的悬挂线的中心的推力平衡。例如，大多数跟踪线圈相对于悬挂线位于一个高度方向，并且倾斜线圈位于另一个剩余高度方向上。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2011154767A Optical pickup 有权
标题翻译： OPTICAL PICKUP
公开(公告)号：JP2011154767A
公开(公告)日：2011-08-11
申请号：JP2010016283
申请日：2010-01-28
申请人： Hitachi Media Electoronics Co Ltd , 株式会社日立メディアエレクトロニクス
发明人： TOMITA DAISUKE , YABE AKIO , TODORI KAZUHIRO , HADO JUN
IPC分类号： G11B7/135
CPC分类号： G11B7/13925 , G11B2007/0013
摘要： PROBLEM TO BE SOLVED: To provide an optical pickup which can be reduced in size and is suitable to, for example, an optical pickup which is to be installed in an optical disk drive capable of using multilayered optical disks. SOLUTION: The optical pickup has a collimator lens disposed on the laser beam path between a laser diode and an objective lens, and a collimator lens drive to move the collimator lens in a direction closer to or going away from the objective lens along the laser beam path; the reference position of the collimator lens where the laser beams passing collimator lens become parallel is set, at an end or around an objective lens side end of the movable ranges of the collimator lens; the objective lens is formed so that the spherical aberrations of the laser beam focused substantially on the edge or substantially on the recording layer of the multilayered optical disk are canceled by the spherical aberrations of the laser beam entering the objective lens via the collimator lens located at the reference position. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以减小尺寸并且适合于例如将要安装在能够使用多层光盘的光盘驱动器中的光学拾取器的光学拾取器。光拾取器具有设置在激光二极管和物镜之间的激光束路径上的准直透镜和准直透镜驱动器，用于使准直透镜沿远离物镜的方向移动激光束路径; 通过准直透镜的激光束平行的准直透镜的基准位置设定在准直透镜的可动范围的物镜端部的端部或周围; 物镜被形成为使得基本上聚焦在多层光盘的边缘上或基本上在多层光盘的记录层上的激光束的球面像差被通过位于位于多层光盘的准直透镜进入物镜的激光束的球面像差被抵消参考位置。版权所有（C）2011，JPO＆INPIT

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