公开(公告)号：US09311950B2

公开(公告)日：2016-04-12

申请号：US14521800

申请日：2014-10-23

申请人： Sony Computer Entertainment Inc.

发明人： Satoshi Mimura

IPC分类号： G11B7/00 ,  G11B20/18 ,  G11B5/09 ,  G11B7/005 ,  G11B7/09 ,  G11B19/12 ,  G11B7/1275 ,  G11B7/085

CPC分类号： G11B7/005 ,  G11B7/08511 ,  G11B7/0945 ,  G11B7/1275 ,  G11B19/12 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2220/232 ,  G11B2220/2545 ,  G11B2220/2562 ,  G11B2220/2579

摘要： Disclosed herein is an optical disc apparatus including: an optical pickup radiating light having a first wavelength provided for an optical disc medium of a first type and light having a second wavelength which is smaller than the first wavelength and provided for another optical disc medium of a second type; a signal outputting section outputting a signal according to light reflected by the optical disc medium to reflect light radiated by the optical pickup; and a type determination section requesting the optical pickup to radiate light having the first wavelength to an object optical disc medium to acquire the signal output by the signal outputting section and determining the type of the object optical disc medium in accordance with the number of peaks appearing in the acquired output signal output by the signal outputting section while moving the optical pickup in a direction to the object optical disc medium.

摘要翻译： 本发明公开了一种光盘装置，包括：光拾取器，其具有为第一类型的光盘介质提供的具有第一波长的光，并且具有小于第一波长的第二波长的光，并且被提供给另一光盘介质 第二类型 信号输出部分，根据由光盘介质反射的光输出信号，以反射由光学拾取器辐射的光; 以及类型确定部分，请求光学拾取器将具有第一波长的光辐射到物体光盘介质，以获取由信号输出部分输出的信号，并根据出现的峰值的数量确定对象光盘介质的类型 在由光信号输出部输出的采集到的输出信号中，使光拾取器朝向对象光盘介质的方向移动。

公开(公告)号：US09310536B2

公开(公告)日：2016-04-12

申请号：US13778153

申请日：2013-02-27

申请人： Panasonic Corporation

发明人： Katsuhiko Hayashi ,  Yasuhiro Tanaka ,  Michihiro Yamagata ,  Yoshiaki Komma

IPC分类号： G02B5/18 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/139 ,  G11B7/1392 ,  G11B7/1376 ,  G11B7/00

CPC分类号： G02B5/1876 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： An objective lens element having excellent compatibility with optical discs having different base material thicknesses is provided. The objective lens element has optically functional surfaces on an incident side and an exit side. At least either one of the optically functional surfaces on the incident side and the exit side includes a diffraction portion which satisfies at least either one of the following formulas (1) and (2): θ1×θ2

摘要翻译： 提供了具有与具有不同基底材料厚度的光盘的良好兼容性的物镜元件。 物镜元件在入射侧和出射侧具有光学功能表面。 入射侧和出射侧的光学功能表面中的至少任一方包括满足下述式（1）和（2）中的至少一个的衍射部：＆lt; 1＆gt; 2＆lt; 0（“ ד表示乘法）（1），（sin＆hetas; 2）/λ2= - （sin＆hetas; 1）/λ1（2），其中θ是具有提供最大值的衍射级的光束的衍射角 在波长λ1下的衍射效率和＆amp; Thetas; 2是具有在波长λ2下提供最大衍射效率的衍射级的光束的衍射角。

公开(公告)号：US09245571B2

公开(公告)日：2016-01-26

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： G11B7/00 ,  G11B7/085 ,  G11B7/0045 ,  G11B7/1392 ,  G11B7/09

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：US09047883B2

公开(公告)日：2015-06-02

申请号：US13816577

申请日：2012-09-24

申请人： PANASONIC CORPORATION

发明人： Kanji Wakabayashi ,  Kouji Ieki

IPC分类号： G11B7/00 ,  G11B7/09 ,  G11B7/1374 ,  G11B7/1353 ,  G11B7/1392

CPC分类号： G11B7/0908 ,  G11B7/0935 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup device includes a single objective lens that focuses a light beam to irradiate an optical disk, and an objective lens actuator that drives the objective lens. The objective lens actuator includes a lens holder that holds the objective lens. Two gaps (Ga, Gb) are formed between the lens holder and the objective lens. In an xy plane in which the center of the objective lens is defined as an origin, the tracking direction is defined as an y axis, and the tangential direction of tracks of the optical disk is defined as an x axis, the gap (Ga) is positioned at least in the first quadrant of the xy plane, and the gap (Gb) is positioned at least in the third quadrant of the xy plane.

摘要翻译： 光学拾取装置包括聚焦光束以照射光盘的单个物镜和驱动物镜的物镜致动器。 物镜致动器包括保持物镜的透镜保持器。 在透镜架和物镜之间形成两个间隙（Ga，Gb）。 在将物镜的中心定义为原点的xy平面中，将跟踪方向定义为y轴，将光盘的轨迹的切线方向定义为x轴，间隙（Ga） 至少位于xy平面的第一象限中，并且间隙（Gb）至少位于xy平面的第三象限中。

公开(公告)号：US08971163B2

公开(公告)日：2015-03-03

申请号：US13995625

申请日：2012-01-06

申请人： Kenya Nakai ,  Masayuki Omaki

发明人： Kenya Nakai ,  Masayuki Omaki

IPC分类号： G11B7/126 ,  G11B7/1263 ,  G11B7/26 ,  G11B7/1376 ,  G11B7/24065 ,  G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/1376 ,  G11B7/24065 ,  G11B7/268 ,  G11B2007/0006 ,  G11B2007/0013

摘要： An optical disc device uses an optical disc (6) capable of super-resolution reproduction, and includes a semiconductor laser (1), a laser driving circuit (21) that supplies a driving current to the semiconductor laser, a light receiving element (8) that detects return light from the optical disc (6) and obtains reproduction signal of recording data of the optical disc (6), and a light emission amount control means (22) that controls a light emission amount of the semiconductor laser (1) by the laser driving circuit (21) so as to keep a peak intensity of a focused light spot formed on an information recording layer of the optical disc 6 to be greater than or equal to a peak intensity at which a super-resolution effect is obtained. The light emission amount control means (22) controls a light emission amount of the semiconductor laser (1) by the laser driving circuit (21) based on a decrease rate D of a peak intensity of a focused light spot on an information recording layer of the optical disc (1) determined by an assumed disc tilt and a comatic aberration according to a thickness of a light transmitting layer of the optical disc (1), and a lower limit value Pld_L of a light emission amount at which a predetermined reproduction performance is obtained.

摘要翻译： 光盘装置使用能够进行超分辨率再现的光盘（6），并且包括半导体激光器（1），向半导体激光器提供驱动电流的激光驱动电路（21），光接收元件（8） ），其检测来自光盘（6）的返回光并获得光盘（6）的记录数据的再现信号，以及控制半导体激光器（1）的发光量的发光量控制装置（22） 通过激光驱动电路（21）将形成在光盘6的信息记录层上的聚焦光点的峰值强度保持为大于或等于获得超分辨率效果的峰值强度 。 发光量控制装置（22）基于激光驱动电路（21）的信息记录层上的聚焦光点的峰值强度的降低率D来控制半导体激光器（1）的发光量 由假定的光盘倾斜和根据光盘（1）的光透射层的厚度的彗形像差确定的光盘（1）以及预定的再现性能的发光量的下限值Pld_L 获得。

公开(公告)号：US20140286151A1

公开(公告)日：2014-09-25

申请号：US14202427

申请日：2014-03-10

申请人： Funai Electric Co., Ltd.

发明人： Mika HAMAOKA ,  Mio KOGA ,  Mitsuyoshi SASABE

IPC分类号： G11B7/085

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/094 ,  G11B7/1275 ,  G11B2007/0006 ,  G11B2007/0013

摘要： An optical pickup includes a plurality of light sources, an objective lens, a diffractive optical element, and a light-detecting unit. The various light sources emit light of wavelengths that are different from each other. The objective lens focuses light on an optical disc. The diffractive optical element includes a diffracting portion and a light-blocking portion. The diffracting portion diffracts return light reflected from a first recording layer of the optical disc where information is being read or written. The light-blocking portion blocks stray light reflected from a second recording layer of the optical disc that is different from the first recording layer. The light-detecting unit receives the diffracted light of the diffractive optical element and generates an output signal to generate a tracking error signal based on this diffracted light. Furthermore, the light-blocking portion includes a plurality of light-blocking patterns which block light of wavelengths that are different from each other.

摘要翻译： 光拾取器包括多个光源，物镜，衍射光学元件和光检测单元。 各种光源发射彼此不同的波长的光。 物镜将光线聚焦在光盘上。 衍射光学元件包括衍射部分和遮光部分。 衍射部分衍射从正在读取或写入信息的光盘的第一记录层反射的返回光。 遮光部分阻挡从与第一记录层不同的光盘的第二记录层反射的杂散光。 光检测单元接收衍射光学元件的衍射光，并产生输出信号，以产生基于该衍射光的跟踪误差信号。 此外，遮光部分包括阻挡彼此不同的波长的光的多个遮光图案。

公开(公告)号：US08827499B2

公开(公告)日：2014-09-09

申请号：US13389513

申请日：2011-07-13

申请人： Masatoshi Yajima ,  Katsumi Goto

发明人： Masatoshi Yajima ,  Katsumi Goto

IPC分类号： G11B7/127 ,  G11B7/1275 ,  G11B7/22 ,  G11B7/00

CPC分类号： G11B7/22 ,  G11B7/127 ,  G11B7/1275 ,  G11B2007/0006

摘要： An object is to suppress precipitation and adhesion of an organotin compound in an optical module which is incorporated into an optical pickup device and so on. The optical pickup 100 includes light sources 1, 10, optical components 2, 3 transmitting light emitted from the light sources, a driving circuit 28 for driving the light sources, that is electrically connected to at least one component other than the driving circuit using solder 27a, 27b containing a flux, and heat radiating members 22a, 22b for radiating heat generated in the light sources 1, 10, wherein the heat radiating members 22a, 22b can generate only ethanol, or ethanol and methanol so that a proportion of ethanol is more than that of methanol.

摘要翻译： 目的是抑制有机锡化合物在结合到光学拾取装置等中的光学组件中的沉淀和粘附。 光学拾取器100包括光源1,10，从光源发射的光的光学部件2,3，用于驱动光源的驱动电路28，其使用焊料电连接到除了驱动电路之外的至少一个部件 27a，27b和散热构件22a，22b，散热构件22a，22b，用于散发在光源1,10中产生的热量，散热构件22a，22b只能产生乙醇，或乙醇和甲醇，使乙醇的比例为 多于甲醇。

公开(公告)号：US20140241142A1

公开(公告)日：2014-08-28

申请号：US14188853

申请日：2014-02-25

申请人： Toshiba Samsung Storage Technology Korea Corporation

发明人： Ki-bok KIM ,  Jin-sun AHN ,  Ju-hee IM ,  Jin-ho JEONG ,  Seung-man HAN

IPC分类号： G11B7/1353

CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B7/0953 ,  G11B7/1275 ,  G11B2007/0006

摘要： Provided are an optical pickup and an optical information storage system including the same. The optical pickup includes a diffracting element that splits incident light into main light and a plurality of sub light. The diffracting element has at least three regions including first through third regions. A second region is disposed between a first region and a third region and has a phase difference from the first and third regions. The optical pickup detects a tracking error signal by using light diffracted by the diffracting element.

摘要翻译： 提供了一种光拾取器和包括其的光学信息存储系统。 光拾取器包括将入射光分解成主光和多个次光的衍射元件。 衍射元件具有包括第一至第三区域的至少三个区域。 第二区域设置在第一区域和第三区域之间，并且具有与第一和第三区域的相位差。 光学拾取器通过使用由衍射元件衍射的光来检测跟踪误差信号。

公开(公告)号：US08730781B2

公开(公告)日：2014-05-20

申请号：US13973065

申请日：2013-08-22

申请人： Toshiba Samsung Storage Technology Korea Corporation

发明人： Young-taek Kim

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/1275 ,  G11B7/13 ,  G11B2007/0006 ,  H03F3/08

摘要： Provided are a light detecting element, and an optical pick-up device and an optical disc drive including the light detecting element. The light detecting element includes a terminal resistance unit that is provided between an amplification unit and an output port to limit an electric current of the output signal.

摘要翻译： 提供了一种光检测元件，以及包括光检测元件的光学拾取装置和光盘驱动器。 光检测元件包括终端电阻单元，其设置在放大单元和输出端口之间，以限制输出信号的电流。

公开(公告)号：US20140119169A1

公开(公告)日：2014-05-01

申请号：US13816577

申请日：2012-09-24

申请人： PANASONIC CORPORATION

发明人： Kanji Wakabayashi ,  Kouji Ieki

IPC分类号： G11B7/09

CPC分类号： G11B7/0908 ,  G11B7/0935 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup device includes a single objective lens (1) that focuses a light beam to irradiate an optical disk, and an objective lens actuator (29) that drives the objective lens (1). The objective lens actuator (29) includes a lens holder (2) that holds the objective lens (1). Two gaps (Ga, Gb) are formed between the lens holder (2) and the objective lens (1). In an xy plane in which the center of the objective lens (1) is defined as an origin, the tracking direction is defined as an y axis, and the tangential direction of tracks of the optical disk is defined as an x axis, the gap (Ga) is positioned at least in the first quadrant of the xy plane, and the gap (Gb) is positioned at least in the third quadrant of the xy plane.

摘要翻译： 光拾取装置包括聚焦光束以照射光盘的单个物镜（1）和驱动物镜（1）的物镜致动器（29）。 物镜致动器（29）包括保持物镜（1）的透镜保持架（2）。 在透镜架（2）和物镜（1）之间形成两个间隙（Ga，Gb）。 在将物镜（1）的中心定义为原点的xy平面中，将跟踪方向定义为y轴，将光盘的轨迹的切线方向定义为x轴，间隙 （Ga）至少位于xy平面的第一象限中，并且间隙（Gb）至少位于xy平面的第三象限中。