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    OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS, AND INFORMATION PROCESSING APPARATUS
    1.
    发明申请
    OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS, AND INFORMATION PROCESSING APPARATUS 有权
    目标镜头，光学头，光盘设备和信息处理设备

    公开(公告)号：US20120182852A1

    公开(公告)日：2012-07-19

    申请号：US13498270

    申请日：2011-07-22

    申请人： Fumitomo Yamasaki ,  Kazuhiro Minami ,  Yoshiaki Komma ,  Junichi Asada ,  Osamu Kajino ,  Noriaki Terahara ,  Toshiyasu Tanaka

    发明人： Fumitomo Yamasaki ,  Kazuhiro Minami ,  Yoshiaki Komma ,  Junichi Asada ,  Osamu Kajino ,  Noriaki Terahara ,  Toshiyasu Tanaka

    IPC分类号： G11B7/1353

    CPC分类号： G11B7/1374 ,  G02B5/1895 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

    摘要： An objective lens, an optical head, an optical disk apparatus and an information processing apparatus which can suppress deterioration of a focal spot caused by a drop in the diffraction efficiency are provided. An inner circumference area (111) and an outer circumference area (113) converge a laser beam having an order of diffraction with which diffraction efficiency is highest, out of laser beams having a wavelength λ1 which are diffracted by the inner circumference area (111) and the outer circumference area (113), on an information recording surface of a first information recording medium; the inner circumference area (111) and a mid-circumference area (112) converge a laser beam having an order of diffraction with which diffraction efficiency is highest, out of the laser beams having a wavelength λ2 which are diffracted by the inner circumference area (111) and the mid-circumference area (112), on an information recording surface of a second information recording medium; and the diffraction efficiency of the laser beam having the wavelength λ2, which is diffracted by the mid-circumference area (112) and converges on the information recording surface of the second information recording medium, is greater than the diffraction efficiency of the laser beam having the wavelength λ1 which is diffracted by the mid-circumference area (112), and converges on the information recording surface of the first information recording medium.

    摘要翻译： 提供了可以抑制由衍射效率下降引起的焦点劣化的物镜，光头，光盘装置和信息处理装置。 在由内周区域（111）衍射的具有波长λ1的激光束中，内圆周区域（111）和外周区域（113）会聚具有衍射效率最高的衍射级数的激光束， 和外周区域（113），位于第一信息记录介质的信息记录表面上; 在由内周区域衍射的具有波长λ2的激光束中，内圆周区域（111）和中周区域（112）会聚具有衍射效率最高的衍射级数的激光束（ 111）和中周区域（112），位于第二信息记录介质的信息记录表面上; 并且由中间圆周区域（112）衍射并会聚在第二信息记录介质的信息记录表面上的具有波长λ2的激光束的衍射效率大于具有 由中圆区域（112）衍射的波长λ1，并且会聚在第一信息记录介质的信息记录表面上。

    Optical pickup, optical information device, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server
    5.
    发明授权
    Optical pickup, optical information device, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server 有权
    光学拾音器，光学信息装置，计算机，光盘播放器，汽车导航系统，光盘记录器和光盘服务器

    公开(公告)号：US08004952B2

    公开(公告)日：2011-08-23

    申请号：US12678312

    申请日：2009-07-07

    申请人： Toshiyasu Tanaka ,  Yoshiaki Komma ,  Kanji Wakabayashi ,  Fumitomo Yamasaki ,  Osamu Kajino

    发明人： Toshiyasu Tanaka ,  Yoshiaki Komma ,  Kanji Wakabayashi ,  Fumitomo Yamasaki ,  Osamu Kajino

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0933 ,  G11B7/22

    摘要： To provide an optical pickup and an optical information device, capable of obtaining excellent signal characteristics for an optical disk on and/or from which recording and/or reproducing are performed using a laser. The optical pickup includes an optical detector, a support holder for holding the optical detector, and an optical base for fixing the support holder. The support holder has at least two notches at its both ends, the optical base has convex portions corresponding to the notches of the support holder, the optical base and the support holder are fixed by photo-curable adhesives for bonding the convex portions and the support holder to each other, and the shortest distance between the side faces of the convex portions, which do not face each other, is equal to or less than the width of the support holder in the direction of right and left ends.

    摘要翻译： 为了提供一种光学拾取器和光学信息装置，能够使用激光器在其上和/或从其执行记录和/或再现的光盘获得优异的信号特性。 光学拾取器包括光学检测器，用于保持光学检测器的支撑保持器和用于固定支撑保持器的光学基座。 支撑架在其两端具有至少两个凹口，光学基座具有对应于支撑架的凹口的凸起部分，光学基座和支撑架由光固化粘合剂固定，用于将凸部和支撑件 彼此不相对的凸部的侧面之间的最短距离等于或小于支撑架在左右两端的方向上的宽度。

    Optical pickup, optical information device, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server
    6.
    发明授权
    Optical pickup, optical information device, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server 有权
    光学拾音器，光学信息装置，计算机，光盘播放器，汽车导航系统，光盘记录器和光盘服务器

    公开(公告)号：US08238218B2

    公开(公告)日：2012-08-07

    申请号：US13181574

    申请日：2011-07-13

    申请人： Toshiyasu Tanaka ,  Yoshiaki Komma ,  Kanji Wakabayashi ,  Fumitomo Yamasaki ,  Osamu Kajino

    发明人： Toshiyasu Tanaka ,  Yoshiaki Komma ,  Kanji Wakabayashi ,  Fumitomo Yamasaki ,  Osamu Kajino

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0933 ,  G11B7/22

    摘要： To provide an optical pickup and an optical information device, capable of obtaining excellent signal characteristics for an optical disk on and/or from which recording and/or reproducing are performed using a laser. The optical pickup includes an optical detector, a support holder for holding the optical detector, and an optical base for fixing the support holder. The support holder has at least two notches at its both ends, the optical base has convex portions corresponding to the notches of the support holder, the optical base and the support holder are fixed by photo-curable adhesives for bonding the convex portions and the support holder to each other, and the shortest distance between the side faces of the convex portions, which do not face each other, is equal to or less than the width of the support holder in the direction of right and left ends.

    摘要翻译： 为了提供一种光学拾取器和光学信息装置，能够使用激光器在其上和/或从其执行记录和/或再现的光盘获得优异的信号特性。 光学拾取器包括光学检测器，用于保持光学检测器的支撑保持器和用于固定支撑保持器的光学基座。 支撑架在其两端具有至少两个凹口，光学基座具有对应于支撑架的凹口的凸起部分，光学基座和支撑架由光固化粘合剂固定，用于将凸部和支撑件 彼此不相对的凸部的侧面之间的最短距离等于或小于支撑架在左右两端的方向上的宽度。

    OPTICAL PICKUP, OPTICAL INFORMATION DEVICE, COMPUTER, OPTICAL DISK PLAYER, CAR NAVIGATION SYSTEM, OPTICAL DISK RECORDER, AND OPTICAL DISK SERVER
    7.
    发明申请
    OPTICAL PICKUP, OPTICAL INFORMATION DEVICE, COMPUTER, OPTICAL DISK PLAYER, CAR NAVIGATION SYSTEM, OPTICAL DISK RECORDER, AND OPTICAL DISK SERVER 有权
    光学拾取，光学信息设备，计算机，光盘播放器，车载导航系统，光盘记录器和光盘服务器

    公开(公告)号：US20100208564A1

    公开(公告)日：2010-08-19

    申请号：US12678312

    申请日：2008-09-18

    申请人： Toshiyasu Tanaka ,  Yoshiaki Komma ,  Kanji Wakabayashi ,  Fumitomo Yamasaki ,  Osamu Kajino

    发明人： Toshiyasu Tanaka ,  Yoshiaki Komma ,  Kanji Wakabayashi ,  Fumitomo Yamasaki ,  Osamu Kajino

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0933 ,  G11B7/22

    摘要： To provide an optical pickup and an optical information device, capable of obtaining excellent signal characteristics for an optical disk on and/or from which recording and/or reproducing are performed using a laser. The optical pickup includes an optical detector, a support holder for holding the optical detector, and an optical base for fixing the support holder. The support holder has at least two notches at its both ends, the optical base has convex portions corresponding to the notches of the support holder, the optical base and the support holder are fixed by photo-curable adhesives for bonding the convex portions and the support holder to each other, and the shortest distance between the side faces of the convex portions, which do not face each other, is equal to or less than the width of the support holder in the direction of right and left ends.

    摘要翻译： 为了提供一种光学拾取器和光学信息装置，能够使用激光器在其上和/或从其执行记录和/或再现的光盘获得优异的信号特性。 光学拾取器包括光学检测器，用于保持光学检测器的支撑保持器和用于固定支撑保持器的光学基座。 支撑架在其两端具有至少两个凹口，光学基座具有对应于支撑架的凹口的凸起部分，光学基座和支撑架由光固化粘合剂固定，用于将凸部和支撑件 彼此不相对的凸部的侧面之间的最短距离等于或小于支撑架在左右两端的方向上的宽度。

    Optical head, optical disc drive, computer, optical discplayer and optical disc recorder
    8.
    发明授权
    Optical head, optical disc drive, computer, optical discplayer and optical disc recorder 有权
    光头，光盘驱动器，计算机，光盘播放器和光盘录像机

    公开(公告)号：US08477584B2

    公开(公告)日：2013-07-02

    申请号：US12015688

    申请日：2008-01-17

    申请人： Fumitomo Yamasaki ,  Yoshiaki Komma ,  Kanji Wakabayashi ,  Toshiyasu Tanaka

    发明人： Fumitomo Yamasaki ,  Yoshiaki Komma ,  Kanji Wakabayashi ,  Toshiyasu Tanaka

    IPC分类号： G11B7/135

    CPC分类号： G11B7/1353 ,  G11B7/131 ,  G11B7/1381 ,  G11B2007/0006 ,  G11B2007/0013

    摘要： When performing a read or write operation on an optical disc with information storage layers, this compatible optical head with a two-focus lens can reduce interference caused by an unnecessary diffracted light reflected from a non-target layer and not contributing to reading or writing. The head reads and/or writes information from/on storage media, including first and second media with different protective substrate thicknesses, by irradiating a given one with a laser beam and includes: a diffraction element that diffracts the beam to produce diffracted light of multiple orders; an objective lens for converging nth and mth order ones of the light on the respective storage layers of the first and second media; a photodetector that receives the beam reflected from the medium and condensed; and a light shielding portion for preventing a portion of the beam reflected from the storage layer of the second medium and including its optical axis from reaching the photodetector. The light shielding portion is arranged so as to reduce loss to be caused by cutting off the portion of the beam to a predetermined value or less.

    摘要翻译： 当在具有信息存储层的光盘上执行读取或写入操作时，具有双焦点透镜的兼容光学头可以减少由非目标层反射的不需要的衍射光引起的干扰，并且不会对读取或写入有贡献。 头通过用激光束照射给定的一个来读取和/或从存储介质（包括具有不同保护衬底厚度的第一介质和第二介质）读取和/或写入信息，并且包括：衍射元件，衍射光束以产生多个衍射光 命令; 用于在第一和第二介质的各个存储层上会聚第n个和第m个光的物镜; 光接收器，其接收从介质反射并聚焦的光束; 以及用于防止从第二介质的存储层反射并包括其光轴的光束的一部分到达光电检测器的遮光部分。 遮光部被配置为减少将光束的一部分切断而造成的损失为规定值以下。

    Complex objective lens including saw-tooth diffractive element for using on blue, red and infrared lights
    9.
    发明授权
    Complex objective lens including saw-tooth diffractive element for using on blue, red and infrared lights 有权
    复数物镜包括用于蓝色，红色和红外光的锯齿衍射元件

    公开(公告)号：US08441907B2

    公开(公告)日：2013-05-14

    申请号：US13558465

    申请日：2012-07-26

    申请人： Yoshiaki Komma ,  Toshiyasu Tanaka ,  Fumitomo Yamasaki

    发明人： Yoshiaki Komma ,  Toshiyasu Tanaka ,  Fumitomo Yamasaki

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1374 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006

    摘要： In an optical head device which performs recording/reading of data in/from a high-density optical disc using an objective lens with a large NA, a saw-tooth shape diffraction element is used for also performing recording/reading of data in/from a conventional optical disc, such as DVD, CD, or the like. A step difference that produces an optical path length for blue light which is equal to or longer than the wavelength of the blue light and optical path lengths for red and infrared light which are shorter than the wavelengths of the red and infrared light is utilized so as to exert an inverse action on the blue light to those exerted on the red and infrared light. The effect of increasing the working distances for CD and DVD enables multiple compatibility. The optical element is integrally combined with the objective lens to perform a tracking servo following operation.

    摘要翻译： 在使用具有大NA的物镜的高密度光盘中进行数据的记录/读取的光学头装置中，使用锯齿形衍射元件也进行数据的记录/读取 常规的光盘，例如DVD，CD等。 使用等于或长于蓝光的波长的蓝色光的路径长度和比红色和红外光的波长短的红色和红色光的光路长度的阶差，被利用为 对蓝色光施加与红色和红色光上的那些相反的作用。 增加CD和DVD的工作距离的效果可以实现多种兼容性。 光学元件与物镜整体地组合以执行跟踪伺服跟随操作。

    Optical disc drive and optical information system
    10.
    发明授权
    Optical disc drive and optical information system 有权
    光盘驱动器和光信息系统

    公开(公告)号：US08385169B2

    公开(公告)日：2013-02-26

    申请号：US11965469

    申请日：2007-12-27

    申请人： Yoshiaki Komma ,  Kanji Wakabayashi ,  Fumitomo Yamasaki ,  Toshiyasu Tanaka

    发明人： Yoshiaki Komma ,  Kanji Wakabayashi ,  Fumitomo Yamasaki ,  Toshiyasu Tanaka

    IPC分类号： G11B7/00

    CPC分类号： G11B7/13925 ,  G11B7/1362 ,  G11B7/1376 ,  G11B7/1381 ,  G11B19/12 ,  G11B2007/0006

    摘要： An optical disc type is determined by detecting focus error signals and an amount of returned light, while (i) emitting light having a wavelength maximizing a focal length and (ii) moving an objective lens in a direction of an optical axis. If an S shape and AS immediately after a surface are greater than those at the surface, the optical disc is determined to have a largest capacity. It is also determined whether there is a reflective layer at a depth equal or less than 0.1 mm, if not, then it is determined whether there is a reflective layer at a depth of 0.6 mm. If there is a reflective layer at the depth of 0.6 mm, then the type of the reflective layer is determined based on TE/RF signals, using blue light. If the blue light is not adaptable, red light is emitted to replay at a depth of 0.6 mm.

    摘要翻译： 通过检测聚焦误差信号和返回光量来确定光盘类型，同时（i）发射具有最大化焦距的波长的光和（ii）沿光轴的方向移动物镜。 如果在表面之后立即形成S形和AS大于表面处的S形状和AS，则确定光盘具有最大的容量。 还确定在等于或小于0.1mm的深度处是否存在反射层，如果不是，则确定在0.6mm的深度是否存在反射层。 如果在0.6mm的深度处存在反射层，则使用蓝色光，基于TE / RF信号确定反射层的类型。 如果蓝光不适应，则会发出红光以0.6mm的深度重播。