公开(公告)号：US20160370601A1

公开(公告)日：2016-12-22

申请号：US15256691

申请日：2016-09-05

申请人： Corephotonics Ltd.

发明人： Gal Avivi ,  Ephrahim Goldenberg ,  Jamil Nasser ,  Gil Bachar ,  Gal Shabtay

IPC分类号： G02B27/64 ,  H02K1/12 ,  H02K41/035 ,  H02K3/04 ,  H02K7/14 ,  G02B7/08 ,  H02K1/34

CPC分类号： G02B27/646 ,  G02B7/04 ,  G02B7/08 ,  G03B3/10 ,  G03B5/00 ,  G03B2205/0069 ,  G11B7/0908 ,  G11B7/0925 ,  G11B7/0927 ,  G11B7/093 ,  H02K1/12 ,  H02K1/34 ,  H02K3/04 ,  H02K7/14 ,  H02K41/0356

摘要： Electro-magnetic actuators used to provide a displacement of an optical element such as a lens carrier comprise at least one ferromagnetic frame associated with a large air gap and at least one ferromagnetic member parallel to and separated from an elongated section of a frame by a small air gap. Actuation causes a magnetic circuit that appears in the at least one frame, the at least one member and small air gaps and by-passes or bridges the large air gap. In some embodiments, the resultant magnetic force moves the at least one member and leads to the displacement of an optical element attached thereto. In some embodiments, at least one frame and at least one member are arranged to provide a center hole and are dimensioned to enable insertion of a lens carrier in the hole. In some embodiments, the displacement is for auto-focus. In other embodiments, the displacement is for optical image stabilization.

摘要翻译： 用于提供诸如透镜载体的光学元件的位移的电磁致动器包括与大气隙相关联的至少一个铁磁框架和平行于框架的细长部分并与框架的细长部分分离的至少一个铁磁构件 气隙。 致动导致出现在至少一个框架中的磁路，至少一个构件和小气隙间隔并绕过或桥接大的气隙。 在一些实施例中，所得到的磁力使至少一个构件移动并导致附接到其上的光学元件的位移。 在一些实施例中，至少一个框架和至少一个构件布置成提供中心孔并且被设计成能够将透镜托架插入孔中。 在一些实施例中，位移用于自动对焦。 在其他实施例中，位移用于光学图像稳定。

公开(公告)号：US20150131423A1

公开(公告)日：2015-05-14

申请号：US14525567

申请日：2014-10-28

申请人： Sony Computer Entertainment Inc.

发明人： Naoyuki Nishigata

IPC分类号： G11B7/1392

CPC分类号： G11B7/13927 ,  G11B7/0925 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0945 ,  G11B7/0948 ,  G11B7/1376 ,  G11B7/1392 ,  G11B7/13925 ,  G11B2007/0006

摘要： An optical disc device that reads information recorded in an optical disc medium includes an objective lens that focuses light on the optical disc medium, a spherical aberration correction mechanism that changes an amount of spherical aberration of the objective lens according to a setting value of a predetermined parameter, and an evaluation value measurement section that measures an evaluation value indicating the accuracy of reading of information from the optical disc medium. The optical disc device further includes a control section that executes adjustment processing in which the control section carries out plural times of measurement of the evaluation value by the evaluation value measurement section concurrently with changing the amount of spherical aberration of the objective lens by the spherical aberration correction mechanism and calculates an optimum setting value of the parameter based on plural evaluation values obtained by the plural times of measurement.

摘要翻译： 读取记录在光盘介质中的信息的光盘装置包括：将光聚焦到光盘介质上的物镜;球面像差校正机构，用于根据预定的光盘介质的设定值改变物镜的球面像差量; 参数和评估值测量部分，其测量指示从光盘介质读取信息的准确度的评估值。 光盘装置还包括执行调整处理的控制部分，其中控制部分通过评估值测量部分同时进行多次测量评估值，同时改变物镜的球面像差量的球面像差 校正机构，并且基于通过多次测量获得的多个评估值来计算参数的最佳设定值。

公开(公告)号：US20140301174A1

公开(公告)日：2014-10-09

申请号：US14230245

申请日：2014-03-31

申请人： FUNAI ELECTRIC CO., LTD.

发明人： Tsuyoshi EIZA

IPC分类号： G11B7/09

CPC分类号： G11B7/0925 ,  G11B7/0945 ,  G11B7/1376 ,  G11B7/13925

摘要： An optical disk device including: an optical pickup which includes a collimator and an object lens for focusing parallel light beams from the collimator at a position on an optical disc; a collimator driver unit which moves the collimator in an optical axis direction; a movement mechanism driver unit which moves the optical pickup in the radial direction; and a drive control unit which performs an adjustment process for adjusting the positions of the object lens and the collimator. In the adjustment process, the drive control unit causes the collimator driver unit to operate after stopping the movement mechanism driver unit or a spindle motor, and causes the movement mechanism driver unit or the spindle motor to re-start operating after the collimator driver unit finishes moving the collimator.

摘要翻译： 一种光盘装置，包括：光学拾取器，包括准直器和物镜，用于将来自准直器的平行光束聚焦在光盘上的位置; 准直器驱动单元，其使准直仪沿光轴方向移动; 移动机构驱动单元，其沿径向移动光学拾取器; 以及驱动控制单元，其执行用于调整物镜和准直器的位置的调整处理。 在调整处理中，驱动控制单元使停止移动机构驱动单元或主轴电机之后的准直器驱动单元动作，并且在准直器驱动单元完成后使运动机构驱动单元或主轴马达重新开始运转 移动准直仪

公开(公告)号：US08053712B2

公开(公告)日：2011-11-08

申请号：US12390228

申请日：2009-02-20

申请人： Yasuhiro Muraoka ,  Masaharu Sakazume ,  Yoshimaru Nakane ,  Hiroshi Yoshida ,  Shinya Tsukada

发明人： Yasuhiro Muraoka ,  Masaharu Sakazume ,  Yoshimaru Nakane ,  Hiroshi Yoshida ,  Shinya Tsukada

IPC分类号： G02B7/04 ,  G01B11/14

CPC分类号： G11B7/22 ,  G11B7/0925

摘要： An inspecting method for an object lens driving device including a base, an objective lens, a holder for holding the objective lens on the base, and a drive mechanism for driving the holder so as to move the objective lens in the focus direction, the method comprising the steps of: emitting a laser beam through the objective lens; allowing the laser beam emitted through the objective lens to pass through an aperture having a predetermined diameter; applying to the drive mechanism a drive voltage for moving the holder between a first position closest to a surface of the base and a second position farther than the first position from the surface of the base; performing photoelectric conversion of the laser beam having passed through the aperture; and inspecting the objective lens driving device based on a signal obtained by the photoelectric conversion.

摘要翻译： 一种用于物镜驱动装置的检查方法，包括基座，物镜，用于将物镜保持在基座上的保持器以及用于驱动保持器以沿着聚焦方向移动物镜的驱动机构，该方法 包括以下步骤：通过物镜发射激光束; 允许通过物镜发射的激光束通过具有预定直径的孔; 向所述驱动机构施加驱动电压，所述驱动电压用于在最靠近所述基座的表面的第一位置和离所述基座的所述表面的所述第一位置更远的第二位置之间移动所述保持器; 对通过该孔的激光进行光电转换; 并且基于通过光电转换获得的信号来检查物镜驱动装置。

公开(公告)号：US20100124158A1

公开(公告)日：2010-05-20

申请号：US12273936

申请日：2008-11-19

申请人： Riccardo Leto

发明人： Riccardo Leto

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G11B7/0925 ,  G11B7/127 ,  G11B7/1353 ,  G11B7/1356

摘要： An optical system for reading and recording data on a media includes a laser source for generating a laser beam; an optical subsystem for splitting the laser beam into a reference beam and an object beam; and first and second lens for receiving the reference beam and object beam, respectively, and focusing the reference and object beams at a focal point on the media at which the reference beam and object beam interfere with each other. The reference beam and the object beam have first and second optical path lengths defined from the laser source to the focal point of the media. The optical subsystem is positioned so that an optical path length difference between the first and second optical path lengths is substantially equal to an integer multiple of an interference revival period associated with the reference beam and the object beam, the interference revival period associated with peak values of visibility of the interference versus the optical path difference.

摘要翻译： 用于在介质上读取和记录数据的光学系统包括：用于产生激光束的激光源; 用于将激光束分成参考光束和物体光束的光学子系统; 以及分别用于接收参考光束和物体光束的第一和第二透镜，并且将参考物体和物体光束聚焦在参考光束和物体光束彼此干涉的介质上的焦点处。 参考光束和物体光束具有从激光源到介质焦点的第一和第二光程长度。 光学子系统被定位成使得第一和第二光路长度之间的光程长度差基本上等于与参考光束和物体光束相关联的干涉复原周期的整数倍，与峰值相关联的干涉复原周期 干涉的可见度对光程差的影响。

公开(公告)号：US20100067356A1

公开(公告)日：2010-03-18

申请号：US12519718

申请日：2007-12-07

申请人： Hideyuki Fujii ,  Kohei Ota ,  Tohru Kimura ,  Kentarou Nakamura

发明人： Hideyuki Fujii ,  Kohei Ota ,  Tohru Kimura ,  Kentarou Nakamura

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/08582 ,  G11B7/0925 ,  G11B7/13922 ,  G11B7/22 ,  G11B2007/0006

摘要： An optical element for an optical pickup device which can record and/or reproduce information interchangeably with an optical disc while correcting coma satisfactorily, and a compact optical pickup device employing that optical element and exhibiting excellent energy saving. In the optical element for an optical pickup device where a first objective lens portion and a second objective lens portion are formed integrally, one of the first objective lens portion and the second objective lens portion satisfies a relation |HCM|/|TCM| 0.3. The HCM represents the third-order angle of view coma sensitivity in the first objective lens portion or the second objective lens portion, and the TMC represents the third-order inclination angle coma sensitivity in the first objective lens portion or the second objective lens portion.

摘要翻译： 一种用于光学拾取装置的光学元件，其可以在令人满意地校正彗差的同时，与光盘互换地记录和/或再现信息，以及采用该光学元件的紧凑型光学拾取装置并且显示出优异的节能。 在第一物镜部分和第二物镜部分整体形成的用于光学拾取装置的光学元件中，第一物镜部分和第二物镜部分之一满足关系| HCM | / | TCM | <0.3 而满足关系| HCM | / | TCM |> 0.3。 HCM表示第一物镜部分或第二物镜部分的三阶视角彗形像差，TMC表示第一物镜部分或第二物镜部分中的三阶角度彗形像差。

公开(公告)号：US07675825B2

公开(公告)日：2010-03-09

申请号：US11717639

申请日：2007-03-14

申请人： Hideo Ando

发明人： Hideo Ando

IPC分类号： G11B7/00

CPC分类号： G11B7/0909 ,  G11B7/0925 ,  G11B7/094 ,  G11B7/0945 ,  G11B7/0948 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1378 ,  G11B7/1381 ,  G11B7/13927 ,  G11B2007/0013 ,  G11B2007/13727

摘要： An optical disk unit of this invention includes a defocus detecting system for detecting a defocus of an objective lens, a thickness unevenness detecting system for detecting a thickness unevenness of a transparent resin layer provided nearest the objective lens of a recording medium, and a thickness unevenness correcting mechanism for changing the focusing characteristic of light impinging upon the objective lens based on a change in the thickness of the transparent resin layer detected by the thickness detecting system.

摘要翻译： 本发明的光盘装置包括用于检测物镜的散焦的散焦检测系统，用于检测最靠近记录介质的物镜设置的透明树脂层的厚度不均匀性的厚度不均匀性检测系统和厚度不均匀度 校正机构，用于根据厚度检测系统检测到的透明树脂层的厚度变化来改变入射在物镜上的光的聚焦特性。

公开(公告)号：US20090206239A1

公开(公告)日：2009-08-20

申请号：US12390228

申请日：2009-02-20

申请人： Yasuhiro Muraoka ,  Masaharu Sakazume ,  Yoshimaru Nakane ,  Hiroshi Yoshida ,  Shinya Tsukada

发明人： Yasuhiro Muraoka ,  Masaharu Sakazume ,  Yoshimaru Nakane ,  Hiroshi Yoshida ,  Shinya Tsukada

IPC分类号： H01J40/00

CPC分类号： G11B7/22 ,  G11B7/0925

摘要： An inspecting method for an object lens driving device including a base, an objective lens, a holder for holding the objective lens on the base, and a drive mechanism for driving the holder so as to move the objective lens in the focus direction, the method comprising the steps of: emitting a laser beam through the objective lens; allowing the laser beam emitted through the objective lens to pass through an aperture having a predetermined diameter; applying to the drive mechanism a drive voltage for moving the holder between a first position closest to a surface of the base and a second position farther than the first position from the surface of the base; performing photoelectric conversion of the laser beam having passed through the aperture; and inspecting the objective lens driving device based on a signal obtained by the photoelectric conversion.

摘要翻译： 一种用于物镜驱动装置的检查方法，包括基座，物镜，用于将物镜保持在基座上的保持器以及用于驱动保持器以沿着聚焦方向移动物镜的驱动机构，该方法 包括以下步骤：通过物镜发射激光束; 允许通过物镜发射的激光束通过具有预定直径的孔; 向所述驱动机构施加驱动电压，所述驱动电压用于在最靠近所述基座的表面的第一位置和离所述基座的所述表面的所述第一位置更远的第二位置之间移动所述保持器; 对通过该孔的激光进行光电转换; 并且基于通过光电转换获得的信号来检查物镜驱动装置。

公开(公告)号：US20070247997A1

公开(公告)日：2007-10-25

申请号：US11660540

申请日：2005-08-12

申请人： Naoharu Yanagawa ,  Fumihiko Sano

发明人： Naoharu Yanagawa ,  Fumihiko Sano

IPC分类号： G11B7/09

CPC分类号： G11B7/0045 ,  G11B7/09 ,  G11B7/0925 ,  G11B7/1275 ,  G11B7/1381

摘要： A sufficient S/N ratio in reproduction of an optical disk is achieved without complexing a circuit structure even if a data recording speed relative to the optical disk is increased. When data is recorded into an optical disk, in an information recording and reproduction device, both a first light beam and a second light beam are emitted at the same time. A sub-actuator section is provided in addition to a main actuator for correcting the displacement of light collecting spots caused by the displacement between the optical axis of the first beam and the optical axis of the second beam. Only the optical axis of the second light beam is adjusted by the sub-actuator section.

摘要翻译： 即使相对于光盘的数据记录速度增加​​，也不会使电路结构复杂化，从而实现光盘再现时的足够的S / N比。 当将数据记录到光盘中时，在信息记录和再现装置中，同时发射第一光束和第二光束。 除了用于校正由第一光束的光轴与第二光束的光轴之间的位移引起的聚光斑的位移的主致动器之外，还设置有副致动器部。 只有第二光束的光轴被副致动器部分调节。

公开(公告)号：US07272082B2

公开(公告)日：2007-09-18

申请号：US10144826

申请日：2001-10-25

申请人： Patrick Johannes Cornelus Hendrik Smulders ,  Jan Willem Aarts

发明人： Patrick Johannes Cornelus Hendrik Smulders ,  Jan Willem Aarts

IPC分类号： G11B7/00

CPC分类号： G11B7/0935 ,  G11B7/0925 ,  G11B7/0956

摘要： An optical scanning device includes an actuator for displacing an objective lens in a first direction parallel to the optical axis of the objective lens, and in a second direction parallel to a radial direction. The actuator includes at least two electrical coils having wire portions directed parallel to the first direction for generating Lorentz forces in the second direction. Points of application of the Lorentz forces on first and second coils of the two coils are in different positions with respect to each other, viewed in a direction parallel to the first direction.

摘要翻译： 光学扫描装置包括用于在与物镜的光轴平行的第一方向上以及平行于径向方向的第二方向上移动物镜的致动器。 所述致动器包括至少两个电线圈，所述电线圈具有平行于所述第一方向的导线部分，用于在所述第二方向上产生洛伦兹力。 在与第一方向平行的方向上观察，洛伦兹力在两个线圈的第一和第二线圈上的施加点彼此处于不同的位置。