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公开(公告)号：US4956833A
公开(公告)日：1990-09-11
申请号：US456068
申请日：1989-12-26
申请人： Hiroshi Kokado , Suguru Takishima , Koichiro Nishikawa , Junichi Takeda , Masahiko Sasaki , Isao Okuda , Hiroshi Yamamoto , Masami Ninomiya , Akihiro Tanaka , Hiroshi Motohashi , Makoto Iwaki , Wataru Kubo
发明人： Hiroshi Kokado , Suguru Takishima , Koichiro Nishikawa , Junichi Takeda , Masahiko Sasaki , Isao Okuda , Hiroshi Yamamoto , Masami Ninomiya , Akihiro Tanaka , Hiroshi Motohashi , Makoto Iwaki , Wataru Kubo
摘要： An optical disk apparatus comprises an optical pickup having an optical pickup body carrying a laser and a photodetector responsive to light emitted from the laser and reflected by the optical disk for producing tracking error signals mounted on the optical pickup body for reciprocal movement in a tracking direction responsive to operation of an actuator, and supports an objective for focusing the beam on the disk. A position sensor produces position signals in response to displacement of the movable portion in the tracking direction. Finally a servo tracking circuit outputs driving signals to the actuator on the basis of tracking error signals produced either in response to tracking error signals produced from outputs of the photodetector and position signals produced from output signals of the position sensor, in response only to the latter. The optical disk apparatus having the foregoing construction eliminates direct-current offset included in tracking error signals, stabilizes driving of the objective, and reduces access time.
摘要翻译： 一种光盘装置，包括具有携带激光的光学拾取器的光学拾取器和响应于由激光器发出并由光盘反射的光的光电检测器，用于产生安装在光学拾取器主体上的跟踪误差信号，用于在跟踪方向上往复运动 响应于致动器的操作，并且支持将光束聚焦在盘上的目的。 位置传感器响应可动部分在跟踪方向上的位移而产生位置信号。 最后，伺服跟踪电路根据由响应于由光电检测器的输出产生的跟踪误差信号和由位置传感器的输出信号产生的位置信号而产生的跟踪误差信号，将驱动信号输出到致动器，仅响应于后者 。 具有上述结构的光盘装置消除了包括在跟踪误差信号中的直流偏移，稳定了目标的驱动，并减少了存取时间。
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公开(公告)号：US06376953B1
公开(公告)日：2002-04-23
申请号：US09493676
申请日：2000-01-28
IPC分类号： H02K516
CPC分类号： B82Y10/00 , G02B7/1821 , G02B26/105 , G11B7/08564 , G11B7/08576 , G11B7/0901 , G11B7/122 , G11B7/1362 , G11B11/10569 , G11B11/1058
摘要： A galvano mirror unit includes a galvano mirror, a rotor to which the galvano mirror is mounted, a stator that rotatably supports the rotor about a rotation axis, a pair of center pins provided to the stator, and a pair of receive members provided to the rotor. The receive members respectively receive the center pins. The rotor is pivoted by the engagement of the center pin and the receive member.
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3.发明授权
公开(公告)号：US5617379A
公开(公告)日：1997-04-01
申请号：US522088
申请日：1995-08-31
IPC分类号： G11B11/105 , G11B11/00
CPC分类号： G11B11/10571 , G11B11/1056 , G11B11/10595
摘要： A magneto-optical disk is provided wherein a magnetic field generated by a pair of rod-shaped permanent magnets of linear motor mechanisms for moving an optical head leaks to cover an external magnetic field generating device. The rod-shaped permanent magnets are arranged such that the leakage magnetic field is generally parallel with a data recording surface of a magneto-optical disk. In the external magnetic field generating device, the leakage magnetic field causes a permanent magnet to be oriented such that its permanent magnetization is directed parallel to the data recording surface, which is a neutral state. In a recording or erasing operation, a magnetic field reversing coil is energized to cause the permanent magnet to make a quarter rotation (in opposite directions for the recording and erasing operations) from the neutral state so that pole S or N faces the data recording surface.
摘要翻译： 提供一种磁光盘，其中由用于移动光学头的线性电动机构的一对棒状永磁体产生的磁场泄漏以覆盖外部磁场产生装置。 棒状永久磁铁布置成使得漏磁场大致平行于磁光盘的数据记录表面。 在外部磁场产生装置中，泄漏磁场使得永磁体被定向成使得其永久磁化平行于作为中性状态的数据记录表面。 在记录或擦除操作中，磁场反转线圈被通电以使永久磁铁从中性状态进行四分之一旋转（在用于记录和擦除操作的相反方向上），使得磁极S或N面对数据记录表面 。
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公开(公告)号：US06411583B1
公开(公告)日：2002-06-25
申请号：US08896533
申请日：1997-07-18
申请人： Hiroshi Yamamoto , Suguru Takishima
发明人： Hiroshi Yamamoto , Suguru Takishima
IPC分类号： G11B3314
CPC分类号： G11B17/0405
摘要： A rectangular shutter leaf is swingably provided to an opening of a front panel of a disk drive device, a cartridge being inserted or discharged through the opening. The shutter leaf is supported to, and swingable about, one side of the shutter leaf. A resilient skirt is provided on all sides of the shutter leaf except the supported side, and extends toward the periphery of the opening. When the shutter leaf is parallel to the front panel and substantially closes the opening, the resilient skirt covers a clearance between the shutter leaf and the opening, preventing the entry of debris or dust into the interior of the disk drive device through the opening.
摘要翻译： 矩形快门叶可摆动地设置在盘驱动装置的前面板的开口处，盒通过开口插入或排出。 快门叶被支撑并且围绕快门叶的一侧可摆动。 弹性裙部设置在活门叶片的除了支撑侧之外的所有侧面上，并且朝向开口的周边延伸。 当快门叶片平行于前面板并且基本上封闭开口时，弹性裙部覆盖快门叶片和开口之间的间隙，防止碎片或灰尘通过开口进入盘驱动装置的内部。
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公开(公告)号：US5920140A
公开(公告)日：1999-07-06
申请号：US100897
申请日：1998-06-22
CPC分类号： H02K26/00 , G02B26/105 , H02K13/003
摘要： A galvano mirror is held by a mirror holder. The mirror holder is rotatable about a rotation axis and supported in a stator. A center pins (made of conductive material) are provided to the stator. A pair of receive members (made of conductive material) are provided to the mirror holder. Each of the receive member receiving respective center pin. A pair of coils are provided to opposing ends of the mirror holder, the movable parts being connected to the receive members. The center pins and the receive members constitute a electrical feeding path for feeding electricity to the coils.
摘要翻译： 电视镜由镜子座保持。 镜架能绕旋转轴线旋转并支撑在定子中。 中心销（由导电材料制成）设置在定子上。 一对接收构件（由导电材料制成）被提供到镜架。 每个接收件接收相应的中心销。 一对线圈设置在反射镜保持器的相对端部，可动部分连接到接收部件。 中心销和接收构件构成用于向线圈供电的馈电路径。
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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。
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公开(公告)号：US5701216A
公开(公告)日：1997-12-23
申请号：US599339
申请日：1996-02-08
CPC分类号： G11B17/0405 , G11B33/027
摘要： A shutter mechanism for a disk drive includes at least one flat wire spring member inserted within lateral sides of opposing swingable shutters provided to a cartridge insertion opening to connect the shutters. The spring member swing the shutters closed when they are swingedly displaced from a neutral position. Regulating members control the range of the swingable shutters, and positions end portions of the shutters to guide an inserted disk cartridge to a waiting carriage for transporting the disk cartridge within the drive.
摘要翻译： 用于盘驱动器的快门机构包括至少一个扁平线弹簧构件，其插入到设置到盒插入开口以连接快门的相对的可摆动百叶窗的侧面内。 当弹簧构件从中立位置摆动移动时，使快门关闭。 调节构件控制可摆动百叶窗的范围，并且定位百叶窗的端部以将插入的盘盒引导到用于在驱动器内传送盘盒的等待托架。
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8.发明授权公开(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
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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。
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公开(公告)号：US06292447B1
公开(公告)日：2001-09-18
申请号：US09177568
申请日：1998-10-23
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。
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