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1. 发明授权

US5220544A Magnetic optical disk player having improved magnetic field orientations 失效
标题翻译：具有改善的磁场取向的磁性光盘播放器
公开(公告)号：US5220544A
公开(公告)日：1993-06-15
申请号：US525012
申请日：1990-05-18
申请人： Ikuya Kikuchi , Ryo Sato
发明人： Ikuya Kikuchi , Ryo Sato
IPC分类号： G11B11/10 , G11B11/105
CPC分类号： G11B11/10554 , G11B11/10571
摘要： A magnetic optical disk player comprises a turn table for turning a magnetic optical disk, guides for guiding a recording head carriage and an erasing head carriage along two different radial directions of the turn table, drivers for individually driving the recording head carriage and the erasing head carriage, and bias magnets for generating bias magnetic fields distributed along moving areas of the recording and erasing head carriages and having the directions opposite to each other, wherein the drivers include movable coils coupled with the recording head carriage and the erasing head carriage, drive magnets for generating drive magnetic fields interlinking the recording head coil and the erasing head coil, and a leaking flux from the drive magnets passes through the plane in the same direction of the bias magnetic field. The directions of the bias magnetic fields for erasing and recording heads are opposite to each other. The drive magnetic fields for positioning the erasing head carriage and the recording head carriage are also opposite to each other. The bias magnetic field and the drive magnetic field are additively coupled with each other.
摘要翻译：磁性光盘播放器包括用于转动磁性光盘的转台，用于沿着转台的两个不同径向方向引导记录头托架和擦除头托架的引导件，用于单独驱动记录头托架和擦除头滑架和偏置磁体，用于产生沿着记录和擦除头托架的移动区域分布并且具有彼此相反的方向的偏置磁场，其中驱动器包括与记录头托架和擦除头托架耦合的可动线圈，驱动磁体用于产生将记录头线圈和擦除头线圈相互连接的驱动磁场，并且来自驱动磁体的泄漏磁通在偏置磁场的相同方向上穿过该平面。用于擦除和记录头的偏置磁场的方向彼此相反。用于定位擦除头托架和记录头托架的驱动磁场也彼此相对。偏置磁场和驱动磁场彼此相加耦合。

2. 发明授权

US5022022A Support structure for an optical pickup electrically adjustable in two directions 失效
标题翻译：光学拾音器的支撑结构可在两个方向上电可调
公开(公告)号：US5022022A
公开(公告)日：1991-06-04
申请号：US279635
申请日：1988-12-05
申请人： Ikuya Kikuchi , Ryo Sato
发明人： Ikuya Kikuchi , Ryo Sato
IPC分类号： G11B7/09
CPC分类号： G11B7/093
摘要： An optical pickup for an optical recording disk in which a holder supports at least some of the optical member and has fixed thereto electrical coils for driving the holder perpendicularly to the disk and parallel to the disk. The holder is supported by four cantilevered supports having fixed ends fixed to a magnetic yoke forming part of the magnetic circuits in conjunction with the electrical coils. Preferably, the cantilevered supports are insulated from the yoke so as to provide power supply paths for the coils.
摘要翻译：一种用于光记录盘的光学拾取器，其中保持器支撑至少一些光学构件并且固定到其上用于垂直于盘驱动保持器并平行于盘的电线圈。支架由四个悬臂支撑支撑，悬臂支架具有固定在固定到磁轭上的磁轭，磁轭与电线圈一起形成磁路的一部分。优选地，悬臂支撑件与轭绝缘，以便为线圈提供电源路径。

3. 发明授权

US5333124A Magnetic optical disk player having improved servoresponse sensitivity 失效
标题翻译：具有改进的伺服响应灵敏度的磁性光盘播放机
公开(公告)号：US5333124A
公开(公告)日：1994-07-26
申请号：US524932
申请日：1990-05-18
申请人： Ikuya Kikuchi , Ryo Sato
发明人： Ikuya Kikuchi , Ryo Sato
IPC分类号： G11B11/10 , G11B11/105 , G11B13/04 , G11B11/12
CPC分类号： G11B11/10576 , G11B11/10552
摘要： A magnetic optical disk player comprises a turn table for turning a magnetic optical disk, a recording head and an erasing head movable along two different radial directions of the turn table respectively, and bias magnets for generating bias magnetic fields distributed along moving areas of the recording and erasing heads and having the directions opposite to each other, wherein the recording head and the erasing head each includes an objective, movable coils coupled with the objective, and drive magnet for generating a drive magnetic field interlinking the movable coils in the same direction as that of the bias magnetic fields. The directions of the bias magnetic fields for erasing and recording heads are opposite to each other. The magnetic fields for generating electromagnetic forces to drive the objective in the erasing head and the recording head are also opposite to each other. The bias magnetic field and the magnetic field for generating the electromagnetic force are additively coupled with each other in each head.
摘要翻译：磁性光盘播放器包括用于转动磁光盘的转台，记录头和可沿着转台的两个不同径向方向移动的擦除头，以及用于产生沿着记录的移动区域分布的偏置磁场的偏置磁体以及擦除头部并且具有彼此相反的方向，其中记录头和擦除头各自包括物镜，与物镜耦合的可动线圈和驱动磁体，用于产生驱动磁场，该驱动磁场将可动线圈与偏磁场的。用于擦除和记录头的偏置磁场的方向彼此相反。用于产生用于驱动擦除头和记录头中的物镜的电磁力的磁场也彼此相反。用于产生电磁力的偏置磁场和磁场在每个磁头中相互耦合。

4. 发明授权

US5007712A Optical pick-up unit 失效
标题翻译：光学拾取单元
公开(公告)号：US5007712A
公开(公告)日：1991-04-16
申请号：US234547
申请日：1988-08-22
申请人： Ikuya Kikuchi , Ryo Sato
发明人： Ikuya Kikuchi , Ryo Sato
IPC分类号： G11B7/085 , G11B7/09
CPC分类号： G11B7/08582 , G11B7/0932
摘要： In an optical pick-up unit, there is provided with a structure for supporting a holder holding at least an objective lens through a spring support assembly so that said holder is movable in both of a focusing direction and a tracking direction, carried on a carriage capable of traveling at a high speed in the tracking direction, a spring constant of the spring support assembly is so set as to be larger in the tracking direction than in the focusing direction, whereby an amount of a positioning error of the objective lens produced in the tracking direction when the carriage is driven at a high speed is reduced. As a result, by the thus reduced amount of the positioning error of the objective lens, the optical pick-up unit is improved in access time in comparison with the conventional optical pick-up unit.
摘要翻译：在光学拾取单元中，设置有用于支撑通过弹簧支撑组件保持至少物镜的保持器的结构，使得所述保持器可以在聚焦方向和跟踪方向上移动，承载在托架能够沿跟踪方向高速行进，弹簧支承组件的弹簧常数在跟踪方向上比聚焦方向大，由此产生的物镜的定位误差量当滑架以高速驱动时的跟踪方向减小。结果，与传统的光学拾取单元相比，由于物镜的定位误差量的减少，光拾取单元的存取时间得以改善。

5. 发明授权

US07016269B2 Optical pickup apparatus and focusing control method 失效
公开(公告)号：US07016269B2
公开(公告)日：2006-03-21
申请号：US10022843
申请日：2001-12-20
申请人： Masakazu Ogasawara , Ikuya Kikuchi
发明人： Masakazu Ogasawara , Ikuya Kikuchi
IPC分类号： G11B7/00
CPC分类号： G11B7/133 , G11B7/08511 , G11B7/0909 , G11B7/0912 , G11B7/094 , G11B7/0943 , G11B7/0946 , G11B7/131 , G11B2007/0013
摘要： An optical pickup apparatus having an irradiation optical system for condensing a light beam on a track of a recording plane and a photodetection optical system for guiding return light to a photodetector to detect a focal error includes a holographic lens provided in the optical path of the return light for outputting 0-th and ±1st order diffracted lights based on the return light; an optical element provided in front of or behind the holographic lens for providing astigmatism; photodetectors for receiving the 0-th and ±1st order diffracted lights; and servo-signal generating operation circuits connected to the photodetectors for generating a first and second focus error signals having a first and second capture ranges based on the output signal of the photodetector.

6. 发明授权

US5892748A Optical pickup for reading or recording information on a recording surface 失效
标题翻译：用于在记录表面上读取或记录信息的光学拾取器
公开(公告)号：US5892748A
公开(公告)日：1999-04-06
申请号：US611753
申请日：1996-03-06
申请人： Ikuya Kikuchi
发明人： Ikuya Kikuchi
IPC分类号： G11B7/00 , G11B7/125 , G11B7/135
CPC分类号： G11B7/1353 , G11B2007/0006 , G11B2007/0013
摘要： An optical pickup reads or records information on a recording surface of a first optical record medium or a second optical record medium, each of which has a protection film different in thickness from each other. The optical pickup includes: a light beam source for emitting a light beam; a dividing unit for dividing the light beam into a non-diffracted light, which is a portion of the light beam other than diffracted lights, and a first order diffracted light; and a converging unit for converging the non-diffracted light and the first order diffracted light. Further, an optical path length between the light beam source and the converging unit is determined so that the non-diffracted light is converged onto the recording surface of the first optical record medium and a spherical aberration of the non-diffracted light converged onto the recording surface of the first optical record medium is minimized. And the dividing unit is constructed so that the first order diffracted light is converged onto the recording surface of the second optical record medium and a spherical aberration of the first order diffracted light converged onto the recording surface of the second optical record medium is minimized.
摘要翻译：光学拾取器在第一光学记录介质或第二光学记录介质的记录表面上读取或记录信息，每个记录介质的厚度彼此不同。光拾取器包括：用于发射光束的光束源; 分割单元，用于将光束分成不是衍射光的光束的一部分的非衍射光和一级衍射光; 以及用于会聚非衍射光和一级衍射光的会聚单元。此外，确定光束源和会聚单元之间的光程长度，使得非衍射光会聚到第一光学记录介质的记录表面上，并且非衍射光的球面像差会聚到记录第一光学记录介质的表面被最小化。并且分割单元被构造成使得一级衍射光会聚到第二光学记录介质的记录表面上，并且会聚在第二光学记录介质的记录表面上的一级衍射光的球面像差被最小化。

7. 发明申请

US20150070770A1 OPTICAL ELEMENT, HEAD-UP DISPLAY AND LIGHT SOURCE UNIT 审中-公开
标题翻译：光学元件，顶部显示器和光源单元
公开(公告)号：US20150070770A1
公开(公告)日：2015-03-12
申请号：US14391706
申请日：2012-04-12
申请人： Takayuki Nomoto , Ikuya Kikuchi
发明人： Takayuki Nomoto , Ikuya Kikuchi
IPC分类号： G02B3/00 , G02B27/01
CPC分类号： G02B3/0043 , G02B3/0006 , G02B3/0056 , G02B27/0101 , G02B2027/0118
摘要： An optical element includes a microlens array on which plural microlenses are arranged. The microlens array includes plural areas whose microlenses have different curvature radii per area. The plural areas are configured so that the farther the area exists from the center of the microlens array, the smaller the curvature radius of the microlenses arranged on the area is.
摘要翻译：光学元件包括其上布置有多个微透镜的微透镜阵列。微透镜阵列包括多个区域，其微透镜每个面积具有不同的曲率半径。多个区域被配置为使得该区域从微透镜阵列的中心越远，该区域上布置的微透镜的曲率半径越小。

8. 发明申请

US20100220576A1 OPTICAL PICKUP DEVICE AND INFORMATION RECORDING/REPRODUCTION DEVICE 审中-公开
标题翻译：光学拾取装置和信息记录/再现装置
公开(公告)号：US20100220576A1
公开(公告)日：2010-09-02
申请号：US11993121
申请日：2006-06-13
申请人： Ikuya Kikuchi , Masakazu Ogasawara , Takuma Yanagisawa
发明人： Ikuya Kikuchi , Masakazu Ogasawara , Takuma Yanagisawa
IPC分类号： G11B7/135
CPC分类号： G11B7/0901 , G11B7/0906 , G11B7/1353 , G11B7/1381
摘要： The present invention makes possible a compact optical pickup device that eliminates effects due to the position where a sub beam is projected during tracking compensation, and provides for stable tracking compensation.A diffraction grating 12 in the optical pickup device PU gives an astigmatism to a sub beam (either of ±1-dimensional light), and shines that sub beam onto an optical disc DK. Also, a tracking error signal Ste is obtained by subtracting a push-pull signal PPsub that corresponds to a sub beam from a push-pull signal PPmain that corresponds to a main beam (0-dimensional light), and tracking compensation is performed based on that tracking error signal Ste.
摘要翻译：本发明使得可以消除由于在跟踪补偿期间投影子光束的位置而产生的影响的紧凑型光学拾取装置，并提供稳定的跟踪补偿。光学拾取装置PU中的衍射光栅12给子光束（±1维光）的散光，并将该子光束照射到光盘DK上。此外，通过从对应于主波束（0维光）的推挽信号PPmain中减去与子波对应的推挽信号PPsub来获得跟踪误差信号Ste，并且基于跟踪误差信号Ste。

9. 发明申请

US20080232203A1 Optical Pickup 失效
标题翻译：光学拾音
公开(公告)号：US20080232203A1
公开(公告)日：2008-09-25
申请号：US10593649
申请日：2005-03-17
申请人： Masakazu Ogasawara , Makoto Sato , Ikuya Kikuchi
发明人： Masakazu Ogasawara , Makoto Sato , Ikuya Kikuchi
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0948 , G11B7/1275 , G11B7/13927 , G11B2007/0006
摘要： An optical pickup projects laser beams having the first to the third wavelengths, in response to the type of a recording medium which is an object to which recording or reproduction is to be performed, and reflecting light from the recording medium is received by a light-detecting element. In order to reduce the sizes of the optical pickup, light of the second and the third wavelengths is generated by a single dual-wavelength light source, and reflecting light of all the wavelengths is to be received by the single light-detecting element. A hologram element giving different optical effects to light of each wavelength is arranged between the light irradiating means and the light-detecting element. Thus, appropriate information recording and reproduction can be performed by using light of each wavelength.
摘要翻译：响应于要进行记录或再现的对象的记录介质的类型，并且来自记录介质的光被反射光接收，光拾取器投射具有第一至第三波长的激光束，检测元件。为了减小光学拾取器的尺寸，通过单个双波长光源产生第二和第三波长的光，并且所有波长的反射光将被单个光检测元件接收。在光照射装置和光检测元件之间布置有对每个波长的光赋予不同光学效果的全息元件。因此，可以通过使用每个波长的光来执行适当的信息记录和再现。

10. 发明申请

US20070274188A1 Multi-Layer Disk-Use Optical Pickup Device 审中-公开
标题翻译：多层磁盘使用光学拾取设备
公开(公告)号：US20070274188A1
公开(公告)日：2007-11-29
申请号：US10590849
申请日：2005-03-15
申请人： Ikuya Kikuchi
发明人： Ikuya Kikuchi
IPC分类号： G11B7/135
CPC分类号： G11B7/139 , G11B7/1378 , G11B7/24038 , G11B2007/0013
摘要： An optical pickup device including: a light source for emitting a light beam; a beam expander having a converging lens for converging a light beam, a light-shielding panel having a through-portion arranged at an optical conjugate position of an emission point of the light beam for allowing the converged light beam to pass through and a collimator lens for collimating the light beam passed through the through-portion; an objective lens for focusing the collimated light beam to the recording layer; and a light detector for detecting the light beam reflected by the recording medium and passed through the objective lens and the beam expander and generating the error signal and the reading data signal for controlling the focusing position.
摘要翻译：一种光学拾取装置，包括：用于发射光束的光源; 具有用于会聚光束的会聚透镜的光束扩展器，具有布置在光束的发射点的光学共轭位置处的通过部分的光屏蔽板，用于允许会聚光束通过，准直透镜用于准直穿过通孔的光束; 用于将准直光束聚焦到记录层的物镜; 以及光检测器，用于检测由记录介质反射并通过物镜和扩束器的光束，并产生用于控制聚焦位置的误差信号和读取数据信号。

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