公开(公告)号：US06429981B2

公开(公告)日：2002-08-06

申请号：US09782525

申请日：2001-02-14

申请人： Ko Ishii ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Hirokatsu Nagatake ,  Aki Yoshioka ,  Makoto Kawamura ,  Akira Miura ,  Masayuki Koyama

发明人： Ko Ishii ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Hirokatsu Nagatake ,  Aki Yoshioka ,  Makoto Kawamura ,  Akira Miura ,  Masayuki Koyama

IPC分类号： G02B702

CPC分类号： G11B7/1374 ,  G11B7/08505 ,  G11B7/0925 ,  G11B7/0945 ,  G11B7/127 ,  G11B7/131 ,  G11B2007/0006

摘要： An optical pickup apparatus includes a semiconductor laser device having a plurality of light emitting portions for emitting laser beams having different wavelengths on a substrate for emitting a laser beam from one of the plurality of light emitting portions in response to a light emitter selecting instruction in the same emitting direction. The laser beam emitted from the semiconductor laser device is converged by an objective lens and led to a recording surface of an optical disk, and the objective lens is moved to one of a plurality of different positions in a radial direction of the optical disk, corresponding to the selected light emitting portion.

摘要翻译： 一种光拾取装置，包括：半导体激光装置，具有多个发光部，用于在基板上发射具有不同波长的激光束，用于响应于所述多个发光部中的发光选择指令发射来自所述多个发光部中的一个的激光束 相同的发射方向。 从半导体激光装置发射的激光束被物镜会聚并被引导到光盘的记录面，物镜移动到光盘的径向上的多个不同位置之一，对应于 到所选择的发光部分。

公开(公告)号：US06452880B1

公开(公告)日：2002-09-17

申请号：US09704822

申请日：2000-11-03

申请人： Makoto Kawamura ,  Shinichi Takahashi ,  Hirokatsu Nagatake ,  Aki Yoshioka ,  Mitsutoshi Sugano ,  Ko Ishii ,  Akira Miura ,  Masayuki Koyama

发明人： Makoto Kawamura ,  Shinichi Takahashi ,  Hirokatsu Nagatake ,  Aki Yoshioka ,  Mitsutoshi Sugano ,  Ko Ishii ,  Akira Miura ,  Masayuki Koyama

IPC分类号： G11B700

CPC分类号： G11B7/127 ,  G11B7/0903 ,  G11B7/0909 ,  G11B7/123 ,  G11B7/131 ,  G11B2007/0006

摘要： An optical pickup apparatus capable of reading information from recording media of different read wavelengths, includes a light-emitter having a first light source for emitting a first laser beam integrated with a second light source for emitting a second laser beam of a different wavelength from that of the first laser beam. The optical pickup apparatus includes a photodetector for receiving a beam reflected by each of the recording media and an optical system having a plurality of optical elements which form an optical path to guide the first and second laser beams to the recording media and which form an optical path for guiding the reflected beam to the photodetector and through which the first and second laser beams pass.

摘要翻译： 一种能够从不同读取波长的记录介质读取信息的光拾取装置，包括具有第一光源的发光器，该第一光源用于发射与第二光源成一体的第一激光束，用于发射与第二光源不同波长的第二激光束 的第一激光束。 光学拾取装置包括用于接收由每个记录介质反射的光束的光电检测器和具有多个光学元件的光学系统，光学系统形成光路以将第一和第二激光束引导到记录介质并形成光学 用于将反射光束引导到光电检测器并且第一和第二激光束通过该路径。

公开(公告)号：US06912234B2

公开(公告)日：2005-06-28

申请号：US09770673

申请日：2001-01-29

申请人： Shinichi Takahashi ,  Hirokatsu Nagatake ,  Aki Yoshioka ,  Mitsutoshi Sugano ,  Ko Ishii ,  Makoto Kawamura ,  Akira Miura ,  Masayuki Koyama

发明人： Shinichi Takahashi ,  Hirokatsu Nagatake ,  Aki Yoshioka ,  Mitsutoshi Sugano ,  Ko Ishii ,  Makoto Kawamura ,  Akira Miura ,  Masayuki Koyama

IPC分类号： G11B7/135 ,  G11B7/00 ,  G11B7/12 ,  G11B7/125 ,  H01S5/022 ,  H01S5/40 ,  H01S3/10

CPC分类号： G11B7/1275 ,  G11B7/123 ,  G11B2007/0006

摘要： An optical pickup apparatus and a laser diode chip which can simplify and miniaturize a construction of the apparatus is provided for using a plurality of laser beams of different wavelengths. The laser diode chip is a chip for the optical pickup apparatus in which a plurality of light emitting portions for emitting the laser beams of the different wavelengths in the same emitting direction are formed on a substrate. Light emitting points of the plurality of light emitting portions are located at positions which are different in the emitting direction.

摘要翻译： 提供了可以简化和小型化该装置的结构的光学拾取装置和激光二极管芯片，用于使用多个不同波长的激光束。 激光二极管芯片是用于光学拾取装置的芯片，其中在基板上形成用于发射具有相同发射方向的不同波长的激光束的多个发光部分。 多个发光部的发光点位于发射方向不同的位置。

公开(公告)号：US06480456B1

公开(公告)日：2002-11-12

申请号：US09704063

申请日：2000-11-02

申请人： Makoto Kawamura ,  Shinichi Takahashi ,  Hirokatsu Nagatake ,  Aki Yoshioka ,  Mitsutoshi Sugano ,  Ko Ishii ,  Akira Miura ,  Masayuki Koyama

发明人： Makoto Kawamura ,  Shinichi Takahashi ,  Hirokatsu Nagatake ,  Aki Yoshioka ,  Mitsutoshi Sugano ,  Ko Ishii ,  Akira Miura ,  Masayuki Koyama

IPC分类号： G11B700

CPC分类号： G11B7/127 ,  G11B7/123 ,  G11B7/131 ,  G11B2007/0006

摘要： An optical pickup apparatus which supports two wavelengths and is amenable to a reduction in size without employing a combining prism. The optical pickup apparatus employs a semiconductor laser device implemented in the form of a one-chip laser diode having two light sources for emitting a first laser beam and a second laser beam at a wavelength different from that of the first laser beam. A photodetector unit has a first detector section for receiving the first laser beam and a second detector section for receiving the second laser beam, and is set at positions at which the first and second laser beams follow return light paths of different lengths from an optical disc to the first and second detector sections.

摘要翻译： 一种支持两种波长且适于减小尺寸而不使用组合棱镜的光学拾取装置。 光拾取装置采用以具有两个光源的单芯片激光二极管形式实现的半导体激光器件，用于发射与第一激光束的波长不同的第一激光束和第二激光束。 光电检测器单元具有用于接收第一激光束的第一检测器部分和用于接收第二激光束的第二检测器部分，并且被设置在第一和第二激光束跟随与光盘不同长度的返回光路的位置 到第一和第二检测器部分。

公开(公告)号：US06781947B2

公开(公告)日：2004-08-24

申请号：US09955977

申请日：2001-09-20

申请人： Takehiro Motegi ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Ko Ishii ,  Yoshihiro Seita ,  Makoto Kawamura

发明人： Takehiro Motegi ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Ko Ishii ,  Yoshihiro Seita ,  Makoto Kawamura

IPC分类号： G11B700

CPC分类号： G11B7/127 ,  G11B7/126 ,  G11B7/1356 ,  G11B7/1362 ,  G11B2007/0006

摘要： Laser beams h1, h2 with different wavelengths emitted from semiconductor lasers 2a, 3 are incident to an optical path joint prism 13 and each of optical intensities of the laser beams h1, h2 is detected by a photoelectric conversion element 15 provided in an optical path integrated by the optical path joint prism 13 on which a semi-transmission film HM is provided and APC control of each of light emission intensities of the semiconductor lasers 2a, 3 is performed on a basis of each of detection results. As a result of this, the beam intensity of the laser beam h1 passing through the optical path joint prism 13 to be applied to an information recording medium and the laser beam h2 reflecting the optical path joint prism 13 to be applied to the information recording medium are controlled properly.

摘要翻译： 从半导体激光器2a，3发射的具有不同波长的激光束h1，h2入射到光路接合棱镜13，激光束h1，h2的每个光强度由设置在光路集成的光路中的光电转换元件15检测 通过其上设置有半透射膜HM的光路接合棱镜13，并且基于每个检测结果执行对半导体激光器2a，3的每个发光强度的APC控制。 其结果是，将通过光路连接棱镜13的激光束h1的光束强度施加到信息记录介质上，反射光路连接棱镜13的激光束h2被施加到信息记录介质 被正确控制

公开(公告)号：US06798727B2

公开(公告)日：2004-09-28

申请号：US09955978

申请日：2001-09-20

申请人： Takehiro Motegi ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Ko Ishii ,  Makoto Kawamura ,  Yoshihiro Seita

发明人： Takehiro Motegi ,  Shinichi Takahashi ,  Mitsutoshi Sugano ,  Ko Ishii ,  Makoto Kawamura ,  Yoshihiro Seita

IPC分类号： G11B700

CPC分类号： G11B7/127 ,  G11B7/126 ,  G11B7/1356 ,  G11B7/1362 ,  G11B2007/0006

摘要： A reflective mirror 14 is inclined and placed with respect to an objective lens 16 and a photoelectric conversion element 15 for monitor is placed in the back side of the reflective mirror 14. The reflective mirror 14 is formed into a structure in which a semi-transmission film HM having predetermined reflectance and transmittance is formed on one surface of a substrate of a transparent medium. When a laser beam for information record or information reproduction is launched from semiconductor lasers 2a, 3 to the reflective mirror 14, the semi-transmission film HM splits the laser beam into a reflected beam and a transmitted beam and the reflected beam is emitted to the side of the objective lens 16 and the transmitted beam is emitted to the side of the photoelectric conversion element 15. As a result of this, any laser beams for the information record and the information reproduction can be detected by one photoelectric conversion element 15 to perform APC control of the semiconductor lasers 2a, 3 and the intensity of the laser beam for the information record and the information reproduction with respect to an information record medium can be controlled properly.

摘要翻译： 反射镜14相对于物镜16倾斜并放置，并且用于监视器的光电转换元件15被放置在反射镜14的背面。反射镜14形成为半透射的结构 在透明介质的基板的一个表面上形成具有预定反射率和透射率的膜HM。 当用于信息记录或信息再现的激光束从半导体激光器2a，3发射到反射镜14时，半透射膜HM将激光束分成反射光束和透射光束，并将反射光束发射到 物镜16的一侧，并且透射光束被发射到光电转换元件15的一侧。结果，可以由一个光电转换元件15检测用于信息记录和信息再现的任何激光束以执行 可以适当地控制半导体激光器2a，3的APC控制和用于信息记录的激光束的强度和关于信息记录介质的信息再现。

公开(公告)号：US07764586B2

公开(公告)日：2010-07-27

申请号：US11887204

申请日：2006-03-29

申请人： Shinichi Fujinoki ,  Ko Ishii

发明人： Shinichi Fujinoki ,  Ko Ishii

IPC分类号： G11B7/135 ,  G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/1369 ,  G11B19/12 ,  G11B2007/0006

摘要： A kind of an optical disc is discriminated by a disc discriminating section, an order of aberrations to be corrected is set by an order setting section by the kind of the optical disc, drive of a liquid crystal optical element is controlled by a drive control section through a liquid crystal driver, and an aberration of an optical beam is corrected based on the order of the aberration. The level of importance of the aberration correction differs by the kind of the optical disc, and the order of the aberration is set by the level of importance of the aberration correction.

摘要翻译： 一种光盘由光盘鉴别部分识别，通过光盘的种类由订单设置部分设置要校正的像差的顺序，通过驱动控制部分控制液晶光学元件的驱动 通过液晶驱动器，并且基于像差的顺序校正光束的像差。 像差校正的重要程度与光盘的种类不同，像差校正的重要程度由像差的顺序决定。

公开(公告)号：US07064308B2

公开(公告)日：2006-06-20

申请号：US10776315

申请日：2004-02-12

申请人： Hitoshi Takiguchi ,  Hidekazu Ouchi ,  Yasushi Kumamaru ,  Naoki Yamada ,  Tetsuya Murakami ,  Yoshinari Kuwabara ,  Ko Ishii

发明人： Hitoshi Takiguchi ,  Hidekazu Ouchi ,  Yasushi Kumamaru ,  Naoki Yamada ,  Tetsuya Murakami ,  Yoshinari Kuwabara ,  Ko Ishii

IPC分类号： G02B7/04

CPC分类号： G11B7/22 ,  G11B7/08

摘要： It is an object of the present invention to adjust the focus position of an optical pickup. A brightness measuring apparatus having a half mirror and an objective lens focusing on the half mirror is disposed at a position facing an optical pickup PUi, in a manner such that the objective lens OB of the optical pickup PUi faces the half mirror. Then, the optical pickup PUi is operated to start a focus servo, while the position of multi-lens provided in the optical pickup PUi is changed continuously, thereby measuring a highest brightness of a spot light image incident on the half mirror through the objective lens, by virtue of the brightness measuring apparatus. Subsequently, a highest brightness change caused by changing the position of the multi-lens ML is inspected so as to fix the multi-lens ML at a position when the maximum highest brightness has been obtained, thereby effecting an optimum focus position adjustment for an optical pickup.

摘要翻译： 本发明的目的是调整光学拾取器的聚焦位置。 具有半反射镜和聚焦在半反射镜上的物镜的亮度测量装置设置在面对光学拾取器PUi的位置，使得光学拾取器PUi的物镜OB面向半反射镜。 然后，光拾取器PUi被操作以开始聚焦伺服，同时设置在光学拾取器PUi中的多透镜的位置被连续地改变，从而通过物镜测量入射在半反射镜上的点光图像的最高亮度 ，借助于亮度测量装置。 接着，检查通过改变多透镜ML的位置引起的最高亮度变化，以便将多透镜ML固定在获得最大最高亮度的位置，从而实现光学的最佳焦点位置调整 捡起。

公开(公告)号：US08463575B2

公开(公告)日：2013-06-11

申请号：US12445524

申请日：2007-10-25

申请人： Toshimasa Kikuchi ,  Ko Ishii

发明人： Toshimasa Kikuchi ,  Ko Ishii

IPC分类号： G01C19/32

CPC分类号： B23F23/1218 ,  B23F5/04 ,  B23F23/006

摘要： Based on a left tooth surface (28) having a maximum accumulated pitch error ALmax (when clockwise direction is a positive direction) and a right tooth surface (29) having a minimum accumulated pitch error ARmin (when clockwise direction is a positive direction), which are conceived to most likely have insufficiently ground portions, a correction value δθ which cancels these accumulated pitch errors for suppressing the accumulated pitch error after grinding is obtained. A reference tooth groove angle θ0 is corrected by the correction value δθ, thereby obtaining the meshing angle θ of the work gear. All teeth detection and signal processing in a short period of time is realized by using a displacement sensor and a high-speed meshing-dedicated circuit board.

摘要翻译： 基于具有最大累积螺距误差ALmax（当顺时针方向为正方向）的左齿面（28）和具有最小累积螺距误差ARmin（当顺时针方向为正方向）的右齿面（29）时， 这被认为很可能没有足够的接地部分，获得了抵消这些累积螺距误差以抵消研磨之后的累积螺距误差的校正值deltatheta。 通过校正值deltatheta校正参考齿槽角θ0，从而获得作业齿轮的啮合角θ。 通过使用位移传感器和高速啮合专用电路板实现了短时间内的所有牙齿检测和信号处理。

公开(公告)号：US20080198717A1

公开(公告)日：2008-08-21

申请号：US11887204

申请日：2006-03-29

申请人： Shinichi Fujinoki ,  Ko Ishii

发明人： Shinichi Fujinoki ,  Ko Ishii

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/1369 ,  G11B19/12 ,  G11B2007/0006

摘要： A kind of an optical disc is discriminated by a disc discriminating section, an order of aberrations to be corrected is set by an order setting section by the kind of the optical disc, drive of a liquid crystal optical element is controlled by a drive control section through a liquid crystal driver, and an aberration of an optical beam is corrected based on the order of the aberration. The level of importance of the aberration correction differs by the kind of the optical disc, and the order of the aberration is set by the level of importance of the aberration correction.

摘要翻译： 一种光盘由光盘鉴别部分识别，通过光盘的种类由订单设置部分设置要校正的像差的顺序，通过驱动控制部分控制液晶光学元件的驱动 通过液晶驱动器，并且基于像差的顺序校正光束的像差。 像差校正的重要程度与光盘的种类不同，像差校正的重要程度由像差的顺序决定。