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1. 发明授权

US06324141B2 Optical system for optical disc drive 失效
标题翻译：光盘驱动器光学系统
公开(公告)号：US06324141B2
公开(公告)日：2001-11-27
申请号：US09785165
申请日：2001-02-20
申请人： Suguru Takishima , Hiroshi Nishikawa , Amit Jain
发明人： Suguru Takishima , Hiroshi Nishikawa , Amit Jain
IPC分类号： G11B390
CPC分类号： B82Y10/00 , G11B7/08564 , G11B7/08576 , G11B7/0901 , G11B7/1356 , G11B7/1362 , G11B7/1372 , G11B7/1387 , G11B11/10554 , G11B11/10569 , G11B11/1058
摘要： There is provided a head of an optical data recording/reproducing device. The head is provided with a laser source, a deflector, a relay optical system and an objective lens system. The laser beam emitted by the laser source is incident on the objective lens system via the deflector and the relay optical system. The head is further provided with a rotation angle detecting system which includes a beam splitter provided between first and second relay lenses of the relay lens system, and a detector. The beam splitter divides the incident beam into a first beam directed to the second relay lens and a second beam directed to the detector. The detector has two light receiving areas, and a controller determines an amount of rotation of the deflector based on the amounts of light received by the two light receiving areas.
摘要翻译：提供了一种光学数据记录/再现装置的头部。头部设置有激光源，偏转器，中继光学系统和物镜系统。由激光源发射的激光束经由偏转器和中继光学系统入射到物镜系统上。头部还设置有旋转角度检测系统，其包括设置在中继透镜系统的第一和第二中继透镜之间的分束器和检测器。分束器将入射光束分成指向第二中继透镜的第一光束和指向检测器的第二光束。检测器具有两个光接收区域，并且控制器基于由两个光接收区域接收的光量来确定偏转器的旋转量。

2. 发明授权

US06292447B1 Head for optical disc drive 失效
标题翻译：光盘驱动器头
公开(公告)号：US06292447B1
公开(公告)日：2001-09-18
申请号：US09177568
申请日：1998-10-23
申请人： Suguru Takishima , Hiroshi Nishikawa
发明人： Suguru Takishima , Hiroshi Nishikawa
IPC分类号： G11B390
CPC分类号： G11B7/08576 , G11B7/08564 , G11B7/0901 , G11B7/122 , G11B7/13 , G11B11/10532 , G11B11/10554 , G11B11/10576 , G11B11/1058
摘要： Disclosed is a head of an optical data recording and/or reproducing device. The head is provided with a laser source, an objective optical system, a deflector for deflecting the laser beam emitted by the laser source towards the objective optical system. A relay optical system provided between the deflector and the objective optical system. Further, a detector is provided between the deflector and the relay optical system. The detector has a first and a second light receiving portions and an opening. The two light receiving portions are arranged in a first direction in which the laser beam is deflected by the deflector. A part of the laser beam incident on the detector is received by the first and second light receiving portions, the other passes through the opening. An amount of rotation of the deflector is detected in accordance with amounts of light received by the two light receiving portions.
摘要翻译：公开了一种光学数据记录和/或再现装置的头部。头部设置有激光源，物镜光学系统，用于使由激光源发射的激光束朝向物镜光学系统偏转的偏转器。设置在偏转器和物镜光学系统之间的中继光学系统。此外，在偏转器和中继光学系统之间设置检测器。检测器具有第一和第二光接收部分和开口。两个光接收部分被布置在激光束被偏转器偏转的第一方向上。入射到检测器上的激光束的一部分被第一和第二光接收部分接收，另一个通过该开口。根据由两个光接收部分接收的光量来检测偏转器的旋转量。

3. 发明授权

US06341106B1 Optical disc drive 失效
标题翻译：光盘驱动器
公开(公告)号：US06341106B1
公开(公告)日：2002-01-22
申请号：US09186202
申请日：1998-11-04
申请人： Ryoichi Nakanishi , Hiroshi Nishikawa , Suguru Takishima , Shimpei Shinozaki
发明人： Ryoichi Nakanishi , Hiroshi Nishikawa , Suguru Takishima , Shimpei Shinozaki
IPC分类号： G11B700
CPC分类号： G11B7/1365 , G11B7/08505 , G11B7/08564 , G11B7/08576 , G11B7/122 , G11B7/1381 , G11B7/1387 , G11B11/10554 , G11B11/10563 , G11B11/10569
摘要： Disclosed is an optical disc drive. The optical disc drive is provided with an arm member carrying an objective optical system and a light emitting system. The arm member is rotatable about an axis at one end portion thereof. On the other end portion of the arm member, the objective optical system is mounted. A detecting system is further provided for receiving light reflected by the optical disc via the objective optical system. The detecting system detects data related to an orientation of a beam spot formed by the reflected beam on its light receiving surface. Further provided is a control system which determines a current position of the arm member based on the data related to the orientation of the beam spot.
摘要翻译：公开了一种光盘驱动器。光盘驱动器设置有承载物镜光学系统和发光系统的臂构件。臂构件在其一个端部处可绕轴线旋转。在臂构件的另一端部安装物镜光学系统。还提供一种检测系统，用于经由物镜光学系统接收由光盘反射的光。检测系统检测与其受光面上的反射光束形成的束斑的取向有关的数据。还提供了一种控制系统，其基于与束斑的取向相关的数据来确定臂构件的当前位置。

4. 发明授权

US06333910B1 Optical system for optical disc drive 失效
标题翻译：光盘驱动器光学系统
公开(公告)号：US06333910B1
公开(公告)日：2001-12-25
申请号：US09181553
申请日：1998-10-29
申请人： Hiroshi Nishikawa , Suguru Takishima
发明人： Hiroshi Nishikawa , Suguru Takishima
IPC分类号： G11B700
CPC分类号： B82Y10/00 , G11B7/08576 , G11B7/122 , G11B7/1362 , G11B11/10534 , G11B11/10554 , G11B11/1058
摘要： Disclosed is an optical system for an optical disc drive. The head is provided with a laser source, an objective optical system, and a deflection mirror provided between the laser source and the objective optical system. As the deflection mirror is rotated, the angle of incidence of the beam incident of the objective optical system changes so that a fine tracking is performed. When the deflection mirror is rotated, based on the rotation amount and a distance between the deflection mirror and the objective optical system, the deflection mirror is moved in a direction along which the laser beam is incident so that the laser beam deflected by the deflection mirror is incident on the objective optical system substantially at the same position regardless of rotation amount of the deflection mirror.
摘要翻译：公开了一种用于光盘驱动器的光学系统。头部设置有激光源，物镜光学系统和设置在激光源和物镜光学系统之间的偏转镜。当偏转镜旋转时，物镜光学系统入射的光束的入射角改变，从而进行精细跟踪。当偏转镜旋转时，基于旋转量和偏转镜与物镜光学系统之间的距离，偏转镜沿着激光束入射的方向移动，使得由偏转镜偏转的激光束入射到物镜光学系统基本上位于同一位置，而与偏转镜的旋转量无关。

5. 发明授权

US07990814B2 Optical disk drive 失效
标题翻译：光盘驱动器
公开(公告)号：US07990814B2
公开(公告)日：2011-08-02
申请号：US11763515
申请日：2007-06-15
申请人： Suguru Takishima , Hiroshi Nishikawa , Hiroshi Kanazawa , Ryosei Honma
发明人： Suguru Takishima , Hiroshi Nishikawa , Hiroshi Kanazawa , Ryosei Honma
IPC分类号： G11B7/00
CPC分类号： G11B7/123 , G11B7/08582
摘要： An optical disk drive for recording information on a recording surface of an optical disk and reading information recorded in the optical disk is provided. The optical disk drive includes a spindle to rotate the optical disk and a carriage movable in parallel with a tracking direction of the optical disk. The carriage includes a laser light source to emit laser light, a collimator lens to convert divergent light into parallel light and is arranged with an optical center thereof being in a farther and offset position with respect to an optical axis of the laser light, a reflecting mirror to receive and deflect the laser light transmitted through the collimator lens in a direction perpendicular to the recording surface of the optical disk, and an objective lens to converge the laser light deflected by the reflecting mirror on a position corresponding to the recording surface of the optical disk.
摘要翻译：提供一种用于在光盘的记录表面上记录信息并读取记录在光盘中的信息的光盘驱动器。光盘驱动器包括用于旋转光盘的主轴和可与光盘的跟踪方向并行移动的滑架。滑架包括用于发射激光的激光源，将发散光转换为平行光的准直透镜，并且其光学中心相对于激光的光轴位于更远和偏移位置，反射反射镜，以在垂直于光盘的记录表面的方向上接收和偏转透射准直透镜的激光;以及物镜，将由反射镜偏转的激光会聚在与该光盘的记录表面相对应的位置上光盘。

6. 发明授权

US06667943B1 Optical disc apparatus 失效
标题翻译：光盘装置
公开(公告)号：US06667943B1
公开(公告)日：2003-12-23
申请号：US09553854
申请日：2000-04-21
申请人： Koichi Maruyama , Hisashi Konno , Suguru Takishima , Wataru Kubo , Hiroshi Nishikawa , Hiroshi Yamamoto
发明人： Koichi Maruyama , Hisashi Konno , Suguru Takishima , Wataru Kubo , Hiroshi Nishikawa , Hiroshi Yamamoto
IPC分类号： G11B700
CPC分类号： G11B7/1275 , G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An optical disc apparatus includes a fixed portion having a light source portion and a movable portion that holds an objective lens and moves along a radial direction of an optical disc. The fixed portion includes the light source portion for selectively emitting short and long wavelength laser beams, and a collimator lens for collimating the laser beams. The objective lens includes a positive refractive lens and a diffractive lens structure formed on a surface of the refractive lens. The diffractive lens structure has wavelength dependence such that spherical aberration varies in the undercorrected direction as wavelength of incident light increases. The objective lens converges the short wavelength laser beam of a predetermined diffraction order onto an informatlon layer of a thin cover type optical disc, and converges the long wavelength laser beam of the identical diffraction order onto an information layer of a thick cover type optical disc.
摘要翻译：光盘装置包括具有光源部分和保持物镜并沿着光盘的径向方向移动的可动部分的固定部分。固定部分包括用于选择性地发射短波长和长波长激光束的光源部分和用于准直激光束的准直透镜。物镜包括形成在折射透镜的表面上的正折射透镜和衍射透镜结构。衍射透镜结构具有波长依赖性，使得随着入射光的波长的增加，球面像差在校正不正确的方向上变化。物镜将预定衍射级的短波长激光束会聚到薄盖型光盘的信息层上，并将相同衍射级的长波长激光束会聚到厚盖型光盘的信息层上。

7. 发明授权

US06278682B1 Optical system for optical disc drive 失效
标题翻译：光盘驱动器光学系统
公开(公告)号：US06278682B1
公开(公告)日：2001-08-21
申请号：US09187337
申请日：1998-11-06
申请人： Suguru Takishima , Hiroshi Nishikawa
发明人： Suguru Takishima , Hiroshi Nishikawa
IPC分类号： G11B700
CPC分类号： B82Y10/00 , G11B7/08564 , G11B7/08576 , G11B7/122 , G11B7/131 , G11B7/133 , G11B7/1353 , G11B7/1381 , G11B7/1387 , G11B11/10543 , G11B11/10554 , G11B11/10576 , G11B11/1058 , G11B2007/13727
摘要： Disclosed is an optical disc drive for reading/writing data from/on an optical disc. The disc drive is provided with a laser source, an objective lens system, a deflection mirror between the laser source and the objective lens system. An incident angle of the laser beam incident on the objective lens system is changed by rotating the deflection mirror. Further, a relay lens system is provided between the deflection mirror and the objective lens system. A diffraction grating is provided between the laser source and the deflection mirror. The diffraction grating divides an incident beam into at least 0th order beam and ±1st order diffraction beams having predetermined diffraction angles. Further provided is a detecting system that receives the ±1st order diffraction beams deflected by the deflection mirror and determines a rotational position of the deflection mirror in accordance with the received ±1st order diffraction beams.
摘要翻译：公开了一种用于从/从光盘读取/写入数据的光盘驱动器。盘驱动器设置有激光源，物镜系统，激光源和物镜系统之间的偏转镜。通过旋转偏转镜来改变入射在物镜系统上的激光束的入射角。此外，在偏转镜和物镜系统之间设置有中继透镜系统。衍射光栅设置在激光源和偏转镜之间。衍射光栅将入射光束分成具有预定衍射角的至少0阶光束和±1阶衍射光束。进一步提供一种检测系统，其接收由偏转镜偏转的±1级衍射光束，并根据所接收的±1级衍射光束确定偏转镜的旋转位置。

8. 发明授权

US08559290B2 Optical information recording/reproducing optical system and optical information recording/reproducing apparatus 失效
标题翻译：光信息记录/再现光学系统和光信息记录/重放装置
公开(公告)号：US08559290B2
公开(公告)日：2013-10-15
申请号：US12893332
申请日：2010-09-29
申请人： Satoshi Inoue , Yuta Yoshida , Naoto Hashimoto , Suguru Takishima
发明人： Satoshi Inoue , Yuta Yoshida , Naoto Hashimoto , Suguru Takishima
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G02B13/16 , G11B7/1353 , G11B7/1376
摘要： An optical information recording/reproducing optical system where resin material has Tg>115° C., first, second and third films are on an optical disc side of an objective lens and surfaces of an optical element, respectively, a light source side of the objective lens has a fourth film having four or more layers not containing Ti, each of the first, second and third films includes a non-high refractive index layer made of one of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride or a mixture of at least two of them, each of the first, second and third films is not made of one of Ti, Ta, Hf, Zr, Nb, Mo and Cr, a layer of the fourth film closest to a base material is the non-high refractive index layer. The fourth film satisfies 350
摘要翻译：一种光学信息记录/再现光学系统，其中树脂材料具有Tg> 115℃，第一，第二和第三薄膜位于物镜的光盘侧，光学元件的表面分别为物镜具有不含Ti的四层以上的第四膜，第一膜，第二膜和第三膜中的每一层均包含由氧化硅，氧化铝，氟化铝和氟化镁之一构成的非高折射率层或混合物其中至少两个，第一，第二和第三膜中的每一个不是由Ti，Ta，Hf，Zr，Nb，Mo和Cr中的一种制成，所以第四膜最靠近基材的层是非高折射率层。第四片满足350

9. 发明授权

US06249500B1 Disk loading system for a magneto-optical disk drive 失效
标题翻译：用于磁光盘驱动器的磁盘加载系统
公开(公告)号：US06249500B1
公开(公告)日：2001-06-19
申请号：US09050873
申请日：1998-03-31
申请人： Hiroshi Kanazawa , Shimpei Shinozaki , Isao Okuda , Suguru Takishima
发明人： Hiroshi Kanazawa , Shimpei Shinozaki , Isao Okuda , Suguru Takishima
IPC分类号： G11B3392
CPC分类号： G11B17/0438 , G11B11/10558 , G11B11/10573
摘要： A disk cartridge loading system for a disk drive. The loading system includes a disk cartridge holder, a drawing mechanism, a draw-in sensor, a loading sensor, and a controller. The drawing mechanism engages a partially inserted disk cartridge to fully draw the disk cartridge into the disk drive, so that the disk cartridge is accommodated in a disk cartridge holder. A holder moving mechanism moves the disk cartridge holder to a loading position, so that at least one of a data reading operation and a data writing operation can be performed. A draw-in sensor is provided to detect the partial insertion of the disk cartridge, while a loading sensor detects when the disk cartridge is located at the loading position. A control unit controls the drawing mechanism and the holder moving mechanism, based on a first signal produced by the draw-in sensor and a second signal produced by the loading sensor.
摘要翻译：用于磁盘驱动器的磁盘盒装载系统。装载系统包括盘盒保持架，拉伸机构，抽入传感器，装载传感器和控制器。拉拔机构接合部分插入的盘盒，以将盘盒完全拉入盘驱动器，使得盘盒容纳在盘盒保持器中。保持器移动机构将盘盒保持器移动到装载位置，使得可以执行数据读取操作和数据写入操作中的至少一个。提供了一个吸入传感器来检测盘盒的部分插入，而加载传感器检测盘盒何时位于装载位置。控制单元基于由引入传感器产生的第一信号和由加载传感器产生的第二信号来控制绘图机构和保持器移动机构。

10. 发明授权

US5956214A Magnetic head drive mechanism in photo-electro-magnetic disk drive device 失效
标题翻译：光电磁盘驱动装置中的磁头驱动机构
公开(公告)号：US5956214A
公开(公告)日：1999-09-21
申请号：US998977
申请日：1997-12-29
申请人： Shimpei Shinozaki , Suguru Takishima
发明人： Shimpei Shinozaki , Suguru Takishima
IPC分类号： G11B11/105 , G11B17/04 , G11B21/22
CPC分类号： G11B17/043 , G11B11/10558
摘要： A magnetic head drive mechanism in a photo-electro-magnetic disk drive is so designed that a magnetic head is coupled to the end portion of a swingable arm, and, as a photo-electro-magnetic disk is loaded or unloaded, the arm is swung, to move the magnetic head towards or away from the surface of the photo-electro-magnetic disk. In the magnetic head drive mechanism, pins are provided on both sides of the magnetic head, respectively, and a first engaging groove which is engaged with the pin and a second engaging groove which is engaged with the pin are provided on both sides of the opening of a cartridge head, respectively, whereby, at the unloading time both sides of the magnetic head are locked; that is, the vibration of the magnetic head is prevented during the transportation.
摘要翻译：光电磁盘驱动器中的磁头驱动机构被设计成使得磁头耦合到可摆动臂的端部，并且当光电磁盘被装载或卸载时，臂是摆动，将磁头朝向或远离光电磁盘的表面移动。在磁头驱动机构中，销分别设置在磁头的两侧，并且与销接合的第一接合槽和与销接合的第二接合槽设置在开口的两侧分别地，在卸载时，磁头的两侧被锁定; 也就是说，在运输过程中防止了磁头的振动。

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