公开(公告)号：US5107102A

公开(公告)日：1992-04-21

申请号：US646145

申请日：1991-01-25

申请人： Kazuo Noda ,  Koichi Yamazaki ,  Eiichi Nakamura ,  Tetsuya Honda

发明人： Kazuo Noda ,  Koichi Yamazaki ,  Eiichi Nakamura ,  Tetsuya Honda

IPC分类号： G02B7/28 ,  G06K7/015 ,  G11B7/09

CPC分类号： G11B7/094 ,  G11B7/0912 ,  G11B7/0943

摘要： This device is an arrangement for detecting a signal for effecting a focus control of an optical head with respect to an optical information recording medium by making use of a reflected light beam from the optical information recording medium. On an optical path for a reflected light beam reflected from the recording surface of the optical recording medium, a photodetector is provided. This photodetector is composed of a plurality of elements arranged symmetrically in the transverse cross section of the light beam. Thus, an output of the outside element and an output of the inside element of the plural elements arranged in the transverse cross section of the light beam are used to detect a focus error, thus to utilize the signal detected for the focus control.

公开(公告)号：US5023439A

公开(公告)日：1991-06-11

申请号：US456947

申请日：1989-12-26

申请人： Kazuo Noda ,  Koichi Yamazaki ,  Eiichi Nakamura ,  Tetsuya Honda

发明人： Kazuo Noda ,  Koichi Yamazaki ,  Eiichi Nakamura ,  Tetsuya Honda

IPC分类号： G02B7/28 ,  G06K7/015 ,  G11B7/09

CPC分类号： G11B7/094 ,  G11B7/0912 ,  G11B7/0943

摘要： This device is an arrangement for detecting a signal for effecting a focus control of an optical head with respect to an optical information recording medium by making use of a reflected light beam from the optical information recording medium. On an optical path for a reflected light beam reflected from the recording surface of the optical recording medium, a photodetector is provided. This photodetector is composed of a plurality of elements arranged symmetrically in the transverse cross section of the light beam. Thus, an output of the outside element and an output of the inside element of the plural elements arranged in the transverse cross section of the light beam are used to detect a focus error, thus to utilize the signal detected for the focus control.

摘要翻译： 该装置是用于通过利用来自光学信息记录介质的反射光束来检测用于实现相对于光学信息记录介质的光学头的聚焦控制的信号的装置。 在从光记录介质的记录表面反射的反射光束的光路上，提供光电检测器。 该光电检测器由在光束的横截面中对称布置的多个元件组成。 因此，使用布置在光束的横截面中的多个元件的外部元件的输出和内部元件的输出来检测聚焦误差，从而利用为聚焦控制检测到的信号。

公开(公告)号：US5600621A

公开(公告)日：1997-02-04

申请号：US230593

申请日：1994-04-21

申请人： Kazuo Noda ,  Eiichi Nakamura ,  Koichi Yamazaki

发明人： Kazuo Noda ,  Eiichi Nakamura ,  Koichi Yamazaki

IPC分类号： G11B7/125 ,  G11B7/00

CPC分类号： G11B7/131 ,  G11B7/123 ,  G11B7/126 ,  G11B7/1263 ,  G11B7/1362

摘要： In a laser output control device for use in an optical information recording and reproducing apparatus which uses output light from a semiconductor laser device to record and reproduce information onto and from an optical information recording medium, a light receiving element is provided on the peripheral portion of a laser light emitting window formed in a housing of the semiconductor laser device. The peripheral component of forward radiated light of the laser light output from the semiconductor laser device is received by the light receiving element, so as to control the output power of the semiconductor laser device in accordance with output of the light receiving element corresponding to the received light.

摘要翻译： 在使用来自半导体激光装置的输出光在光学信息记录介质上记录和再现信息的光信息记录和再现装置的激光输出控制装置中，光接收元件设置在 形成在半导体激光器件的壳体中的激光发射窗口。 由半导体激光装置输出的激光的前向辐射光的外围部分由光接收元件接收，以便根据接收到的光接收元件的输出来控制半导体激光器件的输出功率 光。

公开(公告)号：US5341053A

公开(公告)日：1994-08-23

申请号：US682691

申请日：1991-04-09

申请人： Koichi Yamazaki ,  Kazuo Noda ,  Eiichi Nakamura

发明人： Koichi Yamazaki ,  Kazuo Noda ,  Eiichi Nakamura

IPC分类号： G11B7/0033 ,  G11B7/085 ,  G11B17/022 ,  G11B17/04 ,  G11B19/20 ,  G11B25/04 ,  H02K41/035 ,  H02K41/02 ,  H01F7/08 ,  H02K33/18

CPC分类号： G11B17/0408 ,  G11B17/022 ,  G11B19/20 ,  G11B25/04 ,  G11B7/0033 ,  G11B7/08588 ,  H02K41/0356

摘要： A linear motor having a magnetic circuit and a moving coil, the magnetic circuit comprising a linear yoke provided at the center of the circuit and a pair of linear magnets, the linear yoke and the pair of linear magnets forming a pair of linear gaps with the linear yoke interposed therebetween, the magnetic circuit applying a magnetic field to the linear gaps, the movable coil mounted on the linear yoke of the magnetic circuit being moved along the linear yoke by an electromagnetic action to the magnetic circuit when the movable coil is powered, wherein the linear magnet has a larger magnetic force at opposite end portions in the longitudinal direction of the linear magnet than at an intermediate area, the magnetic reluctance of the magnetic circuit is made large to obtain a driving current of the movable coil corresponding to the magnetic reluctance when the moving coil moves at the intermediate area of the linear magnet, or the magnetic circuit is mounted on a plate made of material having the same magnetic reluctance as the linear yoke. An information recording/reproducing apparatus having a card transport stage for transporting an information recording medium and a laser unit for radiating a laser beam to the information recording medium, the information recording/reproducing apparatus writing and reading information to and from the information recording medium while reciprocally moving the card transport stage and linearly and reciprocally moving the information recording medium and applying a laser beam to the information recording medium, wherein the apparatus comprising a transport unit wherein the plane of driving force by driving means for reciprocally moving the card transport stage is made substantially flush with the center of a guide shaft for sliding the transport stage.

摘要翻译： 一种具有磁路和动圈的线性电动机，所述磁路包括设置在所述电路中心的线性磁轭和一对直线磁铁，所述直线磁轭和所述一对直线磁铁形成一对线性间隙， 线性磁轭插入其间，磁路向线性间隙施加磁场，当可动线圈通电时，安装在磁路的线性磁轭上的可动线圈通过电磁作用沿线性磁轭移动到磁路， 其中线性磁体在线性磁体的纵向上的相对端部处的磁力大于中间区域，磁路的磁阻变大，以获得对应于磁性的可动线圈的驱动电流 当动线圈在线性磁体的中间区域移动时，或者磁路安装在由材料制成的板上的磁阻 具有与线性磁轭相同的磁阻。 一种信息记录/再现装置，具有用于传送信息记录介质的卡传送台和用于向信息记录介质辐射激光束的激光单元，信息记录/再现装置向信息记录介质写入和读取信息，同时 相互移动卡传送台并且线性地并且往复地移动信息记录介质并将激光束施加到信息记录介质，其中该装置包括传送单元，其中通过用于使卡传送台往复运动的驱动装置的驱动力平面是 与导向轴的中心大致齐平，用于滑动输送台。

公开(公告)号：US5185729A

公开(公告)日：1993-02-09

申请号：US678478

申请日：1991-04-01

申请人： Kazuo Noda ,  Eiichi Nakamura ,  Hiroaki Nishiguma

发明人： Kazuo Noda ,  Eiichi Nakamura ,  Hiroaki Nishiguma

IPC分类号： G11B7/09 ,  G11B7/135

CPC分类号： G11B7/1353 ,  G11B7/09 ,  G11B7/1381

摘要： An optical head for reading and/or writing information from and in an optical recording medium having an improved sensor structure for focusing and tracking error detections. A light beam is separated into a 0th-order diffraction light beam and .+-.1st-order diffraction light beams, and these light beams are impinged upon a recording track of the optical recording medium. The light beams reflected from the optical recording medium is separated into two different directions, and the tracking and focusing error detections are carried out with multi-segment optical sensors which are connected in a complementary manner. As a result, the influence of the tracking error on the focusing error detection is eliminated, and the linearity of the focusing error detection is improved.

公开(公告)号：US5084851A

公开(公告)日：1992-01-28

申请号：US602726

申请日：1990-10-24

申请人： Kazuo Noda ,  Eiichi Nakamura

发明人： Kazuo Noda ,  Eiichi Nakamura

IPC分类号： G11B7/09 ,  G11B7/13 ,  G11B7/135

CPC分类号： G11B7/0916 ,  G11B7/13 ,  G11B7/1362 ,  G11B7/1381

摘要： The present invention relates to an optical head for recording and playing back optical information, the optical head comprising an illumination system which shines three beams of light comprising 0-dimensional diffraction light, +1-dimensional diffraction light, and -1-dimensional diffraction light onto an optical information recording medium, and a photoreceiver system which receives three beams of reflected light from the recording medium; the photoreceiver system being provided with an edge mirror whereby, of the three beams of reflected light from the recording medium, approximately one half of the 0-dimensional diffraction light and all of the +1-dimensional diffraction light is received by a first photoreceiver diode, without being affected by the edge mirror, and the remaining approximately one half of the 0-dimensional diffraction light and all of the -1-dimensional diffraction light is reflected by the edge mirror and is received by a second photoreceiver diode; wherein a focusing control signal, a tracking control signal, and an information signal are obtained from an output from the first photoreceiver diode or the second photoreceiver diode, or from combined outputs from the first photoreceiver diode and the second photoreceiver diode.

公开(公告)号：US5408451A

公开(公告)日：1995-04-18

申请号：US38451

申请日：1993-03-29

申请人： Kazuo Noda ,  Eiichi Nakamura

发明人： Kazuo Noda ,  Eiichi Nakamura

IPC分类号： G11B7/085 ,  G11B7/09 ,  G11B7/00

CPC分类号： G11B7/0935 ,  G11B7/0932

摘要： To provide a driving device for an objective lens that has a high driving sensitivity and superior driving frequency characteristics.The present invention relates to a device for driving the objective lens (1) of an optical head that uses a device for recording information on an optical information recording medium, and for reproducing information therefrom, by irradiating a beam of light thereon while positioning and focusing the light with respect to an information track on the optical information recording medium. The device has a loose linkage member which supports an objective lens within a cylindrical member and comprises the cylindrical member (14 ) and a cylindrical hole portion (19 ) into which the cylindrical member is inserted so as to face the cylindrical hole with an air gap therebetween and with the axes thereof oriented vertically, and the driving force generated by a tracking coil (3 ) is transmitted through this loose linkage member to the objective lens.

摘要翻译： 为了提供具有高驱动灵敏度和优异的驱动频率特性的物镜驱动装置。 本发明涉及一种用于驱动光学头的物镜（1）的装置，该装置使用在光学信息记录介质上记录信息的装置，并且通过在定位和聚焦的同时照射其上的光束来再现信息 相对于光学信息记录介质上的信息轨道的光。 该装置具有松动的连接构件，其在圆柱形构件内支撑物镜，并且包括圆柱形构件（14）和圆柱形孔部分（19），圆柱形构件插入其中以与空气间隙 并且其轴线垂直定向，并且由跟踪线圈（3）产生的驱动力通过该松动连接构件传递到物镜。

公开(公告)号：US5561643A

公开(公告)日：1996-10-01

申请号：US301662

申请日：1994-09-07

申请人： Koichi Yamazaki ,  Eiichi Nakamura ,  Hiroaki Yoshida

发明人： Koichi Yamazaki ,  Eiichi Nakamura ,  Hiroaki Yoshida

IPC分类号： G11B7/0033 ,  G11B7/007 ,  G11B7/09 ,  G11B7/24 ,  G11B11/00

CPC分类号： G11B7/24079 ,  G11B7/0903 ,  G11B7/0033

摘要： A high-density recording medium has data tracks and guide tracks formed on both sides of each of the data tracks. Intervals between the guide tracks are set in such a manner that the outer edges of two adjacent guide tracks correspond in position to two tracking laser beam spots on the recording medium. To allow use of either of the high-density recording medium, and a conventional recording medium on which intervals between guide tracks are set in such a manner that the inner edges of two adjacent guide tracks correspond in position to two tracking laser beam spots, control is performed such that polarity of a tracking control servo is selectively inverted depending upon which of the high-density and conventional recording medium is used.

摘要翻译： 高密度记录介质具有形成在每个数据轨迹两侧的数据轨道和导轨。 引导轨道之间的间隔设置成使得两个相邻引导轨道的外边缘位于记录介质上的两个跟踪激光束点处。 为了允许使用高密度记录介质和传统记录介质中的任何一个，其中引导轨道之间的间隔被设置成使得两个相邻引导轨道的内边缘在位置对应于两个跟踪激光束点，控制 执行使得跟踪控制伺服的极性根据使用高密度和常规记录介质的哪一个而被选择性地反转。

公开(公告)号：US5367515A

公开(公告)日：1994-11-22

申请号：US874089

申请日：1992-04-27

申请人： Koichi Yamazaki ,  Eiichi Nakamura

发明人： Koichi Yamazaki ,  Eiichi Nakamura

IPC分类号： G11B7/00 ,  G11B7/0033 ,  G11B7/004 ,  G11B7/0045 ,  G11B7/005 ,  G11B7/085 ,  G11B7/125

CPC分类号： G11B7/126 ,  G11B7/08505

摘要： An optical information recording and reproduction apparatus that correctly performs tracking control even when there is a step in the information recording surface in an apparatus that records and reproduces information to and from an information recording medium such as an optical card or the like. An optical information recording and reproduction apparatus which focusses a light spot from a laser onto an optical information recording medium which has a tracking track and performs the recording and reproduction of information to required positions using the tracking track as a reference. The apparatus reduces the optical output of the laser when track jumping and seeking when there is an information reproduction operation.

摘要翻译： 即使在向诸如光卡等的信息记录介质记录和再现信息的设备中的信息记录表面中存在步骤时，也可以正确执行跟踪控制的光学信息记录和再现设备。 一种光信息记录和再现装置，其将来自激光器的光斑聚焦到具有跟踪轨迹的光信息记录介质上，并使用跟踪轨迹作为参考来执行信息到所需位置的记录和再现。 当存在信息再现操作时，当轨道跳跃和寻找时，该装置减少激光器的光输出。

公开(公告)号：US09039935B2

公开(公告)日：2015-05-26

申请号：US12299898

申请日：2007-05-02

申请人： Eiichi Nakamura ,  Yutaka Matsuo ,  Katsuhiko Kanaizuka

发明人： Eiichi Nakamura ,  Yutaka Matsuo ,  Katsuhiko Kanaizuka

IPC分类号： H01B1/00 ,  H01B1/12 ,  H01B1/04 ,  H01L31/00 ,  C07C63/49 ,  B82Y10/00 ,  H01L51/00 ,  H01L31/04 ,  H01L51/42

CPC分类号： C07C63/49 ,  B82Y10/00 ,  H01B1/04 ,  H01L31/04 ,  H01L51/0047 ,  H01L51/42 ,  Y02E10/50 ,  Y02E10/549 ,  Y10S977/738 ,  Y10S977/948

摘要： The present invention provides a photoelectric conversion material comprising a fullerene derivative represented by the formula C60(R1)5(R2), wherein each R1 independently represents an organic group having a substituent; and R2 represents a hydrogen atom or a substituted or unsubstituted C1-C30 hydrocarbon group. Further, the present invention also provides a photoelectric conversion device having a self-assembled monomolecular film of the photoelectric conversion material, and a solar cell having the photoelectric conversion device.

摘要翻译： 本发明提供一种光电转换材料，其包含由式C60（R1）5（R2）表示的富勒烯衍生物，其中每个R 1独立地表示具有取代基的有机基团。 并且R 2表示氢原子或取代或未取代的C 1 -C 30烃基。 此外，本发明还提供一种具有光电转换材料的自组装单分子膜的光电转换装置和具有光电转换装置的太阳能电池。