公开(公告)号：US09311950B2

公开(公告)日：2016-04-12

申请号：US14521800

申请日：2014-10-23

Applicant: Sony Computer Entertainment Inc.

Inventor： Satoshi Mimura

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

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

Abstract: 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.

Abstract translation: 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：US09263080B2

公开(公告)日：2016-02-16

申请号：US14183934

申请日：2014-02-19

Applicant: Toshiba Samsung Storage Technology Korea Corporation

Inventor： Jung-bae Oh ,  Il-boon Ko ,  Ki-bok Kim ,  Hyun-wook Nam ,  Eun-goo Kim

IPC: G11B7/1353 ,  G11B7/1275 ,  G11B7/22

CPC classification number: G11B7/1275 ,  G11B7/22 ,  Y10T29/49021

Abstract: Provided is an optical pickup device and a method of aligning a twin-light source in an optical disc drive. The method operates two light emitting chips in the light source simultaneously to cause two laser beams to be transmitted through a grating element at the same time. Location errors and rotation errors of the two light emitting chips with respect to the grating element may be corrected while monitoring the laser beams transmitted through the grating element.

Abstract translation: 提供了一种光拾取装置和在光盘驱动器中对准双光源的方法。 该方法同时在光源中操作两个发光芯片，以使两个激光束同时透过光栅元件。 可以在监视通过光栅元件传输的激光束的同时校正两个发光芯片相对于光栅元件的位置误差和旋转误差。

公开(公告)号：US20150131425A9

公开(公告)日：2015-05-14

申请号：US13545688

申请日：2012-07-10

Applicant: Goro Fujita ,  Tsutomu Maruyama ,  Masaru Kuramoto ,  Hideki Watanabe

Inventor： Goro Fujita ,  Tsutomu Maruyama ,  Masaru Kuramoto ,  Hideki Watanabe

IPC: G11B7/126 ,  G11B7/1374 ,  H01S5/065 ,  H01S5/0625 ,  H01S5/026 ,  G11B7/1275 ,  H01S5/34 ,  H01S5/343

CPC classification number: G11B7/126 ,  B82Y20/00 ,  G11B7/127 ,  G11B7/1275 ,  G11B7/128 ,  G11B2007/00457 ,  H01S5/0261 ,  H01S5/0602 ,  H01S5/06253 ,  H01S5/06255 ,  H01S5/0658 ,  H01S5/34333

Abstract: Provided is a recording apparatus including a self-excited oscillation semiconductor laser that has a double quantum well separate confinement heterostructure and includes a saturable absorber section to which a negative bias voltage is applied and a gain section into which a gain current is injected, an optical separation unit, an objective lens, a light reception element, a pulse detection unit, a reference signal generation unit, a phase comparison unit, a recording signal generation unit, and a control unit.

Abstract translation: 提供了一种记录装置，其包括具有双量子阱分离限制异质结构的自激振荡半导体激光器，并且包括施加负偏置电压的可饱和吸收部分和注入增益电流的增益部分，光学 分离单元，物镜，光接收元件，脉冲检测单元，参考信号生成单元，相位比较单元，记录信号生成单元和控制单元。

公开(公告)号：US20140286151A1

公开(公告)日：2014-09-25

申请号：US14202427

申请日：2014-03-10

Applicant: Funai Electric Co., Ltd.

Inventor： Mika HAMAOKA ,  Mio KOGA ,  Mitsuyoshi SASABE

IPC: G11B7/085

CPC classification number: G11B7/1353 ,  G11B7/0903 ,  G11B7/094 ,  G11B7/1275 ,  G11B2007/0006 ,  G11B2007/0013

Abstract: 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.

Abstract translation: 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

Applicant: Masatoshi Yajima ,  Katsumi Goto

Inventor： Masatoshi Yajima ,  Katsumi Goto

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

CPC classification number: G11B7/22 ,  G11B7/127 ,  G11B7/1275 ,  G11B2007/0006

Abstract: 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.

Abstract translation: 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

Applicant: Toshiba Samsung Storage Technology Korea Corporation

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

IPC: G11B7/1353

CPC classification number: G11B7/1353 ,  G11B7/0903 ,  G11B7/0953 ,  G11B7/1275 ,  G11B2007/0006

Abstract: 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.

Abstract translation: 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

Applicant: Toshiba Samsung Storage Technology Korea Corporation

Inventor： Young-taek Kim

IPC: G11B7/00

CPC classification number: G11B7/1263 ,  G11B7/1275 ,  G11B7/13 ,  G11B2007/0006 ,  H03F3/08

Abstract: 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.

Abstract translation: 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：US08611199B2

公开(公告)日：2013-12-17

申请号：US13248042

申请日：2011-09-29

Applicant: Katsuhiko Hayashi ,  Yoshiaki Komma ,  Yasuhiro Tanaka ,  Michihiro Yamagata

Inventor： Katsuhiko Hayashi ,  Yoshiaki Komma ,  Yasuhiro Tanaka ,  Michihiro Yamagata

IPC: G11B7/135

CPC classification number: G11B7/1374 ,  G02B5/1814 ,  G02B5/1876 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An optical pickup device is provided which is compatible with at least two types of optical disc standards having different NAs and which controls an effective NA when a light beam for an optical disc standard having a relatively small NA is converged, thereby forming a desired spot. An inner part 131B and an outer part 131F of an objective lens element 143 are provided with diffraction structures different from each other. A condition (1), DO11×DO12>0, and a condition (2), DO21×DO22

Abstract translation: 提供了一种光拾取装置，其与具有不同NAs的至少两种类型的光盘标准兼容，并且当具有相对较小的NA的光盘标准的光束会聚时，控制有效NA，从而形成所需的斑点。 物镜143的内部部分131B和外部部分131F设置有彼此不同的衍射结构。 满足条件（1），DO11×DO12> 0和条件（2），DO21×DO22 <0（DO11（DO21）是衍射效率最高的衍射光束的衍射级别 由内部衍射结构衍射的波长λ1（λ2）; DO12（DO22）是由衍射结构衍射的波长λ1（λ2）的光束之间衍射效率最高的衍射光束的衍射级数 在外部）。

公开(公告)号：US08547814B2

公开(公告)日：2013-10-01

申请号：US13228222

申请日：2011-09-08

Applicant: Shinzoh Murakami ,  Mototaka Taneya ,  Takahide Ishiguro ,  Katsushige Masui ,  Satoru Fukumoto ,  Takeshi Horiguchi

Inventor： Shinzoh Murakami ,  Mototaka Taneya ,  Takahide Ishiguro ,  Katsushige Masui ,  Satoru Fukumoto ,  Takeshi Horiguchi

IPC: G11B7/00

CPC classification number: G11B7/1353 ,  G11B7/1275

Abstract: In a diffractive element, its grating pattern is so configured that a diffraction angle of a diffracted light beam of a light source that is subject to the first-order diffraction in a diffraction area is matched with an angle of a light beam passing through the diffractive area emitted from a light source and a light source position is matched with a light originating point of the light source that emits a light beam to be transmitted, and the center of light intensity distribution is matched with that of the light source passing through the diffractive element by inclining an optical axis of the light source. A position of the diffractive element is adjusted based on an electric current value generated when a reflected return path light beam of the light source is diffracted by the diffractive element and enters the light source.

Abstract translation: 在衍射元件中，其光栅图案被配置为使得衍射区域中经受一次衍射的光源的衍射光束的衍射角与通过衍射的光束的角度相匹配 从光源和光源位置发射的区域与发射要透射的光束的光源的发光点相匹配，并且光强度分布的中心与通过衍射的光源的光中心匹配 元件通过倾斜光源的光轴。 基于当光源的反射返回路径光束被衍射元件衍射并进入光源时产生的电流值来调节衍射元件的位置。

公开(公告)号：US20130229902A1

公开(公告)日：2013-09-05

申请号：US13884890

申请日：2011-11-09

Applicant: Hideki Tanaka ,  Kentarou Nakamura ,  Kiyono Tateyama

Inventor： Hideki Tanaka ,  Kentarou Nakamura ,  Kiyono Tateyama

IPC: G11B7/1275

CPC classification number: G11B7/1275 ,  G02B27/0025 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An optical pickup apparatus including an objective lens capable of enhancing temperature characteristics and wavelength characteristics, and which enables compatibility for three types of optical discs of BDs, DVDs, and CDs by using the objective lens in common, an optical information recording and reproducing apparatus, and an objective lens suitable for it. In a first optical path difference providing structure in which at least a first basic structure and a second basic structure are superimposed on each other, an amount of a level difference in an optical axis direction can be reduced, whereby it becomes possible to suppress the lowering of a diffraction efficiency when wavelength changes. Further, in the first basic structure and the second basic structure deterioration of the spherical aberration due to the change of the refractive index of the objective lens can be corrected by utilizing a phenomenon that the wavelength of the light source rises similarly due to a rise in the environmental temperature.

Abstract translation: 一种光拾取装置，包括能够增强温度特性和波长特性的物镜，并且通过共同使用物镜实现BD，DVD和CD的三种类型的光盘的兼容性，光信息记录和再现装置， 和适合它的物镜。 在其中至少第一基本结构和第二基本结构彼此叠置的第一光程差提供结构中，可以减小光轴方向上的电平差的量，从而可以抑制下降 的波长变化时的衍射效率。 此外，在第一基本结构和第二基本结构中，由于物镜的折射率的变化引起的球面像差的劣化可以通过利用由于光源的波长类似地上升的现象来校正 环境温度