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1. 发明授权

US06898024B2 Optical system for optical pickup employing coma compensating element 失效
标题翻译：光学拾取采用昏迷补偿元件的光学系统
公开(公告)号：US06898024B2
公开(公告)日：2005-05-24
申请号：US10268802
申请日：2002-10-11
申请人： Shuichi Takeuchi , Koichi Maruyama , Takeshi Shimano
发明人： Shuichi Takeuchi , Koichi Maruyama , Takeshi Shimano
IPC分类号： G02B13/00 , G02B13/18 , G02B27/00 , G11B7/09 , G11B7/095 , G11B7/135 , G11B7/00
CPC分类号： G02B27/0025
摘要： A coma compensating element has two refraction surfaces. The refraction surfaces provide, as a whole, no aberration with respect to rays perpendicularly incident thereon, while the refraction surfaces provide coma with respect to rays obliquely incident thereon.
摘要翻译：昏迷补偿元件有两个折射面。折射表面总体上没有提供相对于垂直入射到其上的光线的像差，而折射表面相对于倾斜入射的光线提供昏迷。

2. 发明授权

US06791934B2 Objective lens optical system, optical head and optical information reproduction apparatus 失效
标题翻译：物镜光学系统，光头和光信息再生装置
公开(公告)号：US06791934B2
公开(公告)日：2004-09-14
申请号：US10076663
申请日：2002-02-19
申请人： Takeshi Shimano , Tetsuo Ariyoshi , Kazuo Shigematsu , Koichi Maruyama , Shuichi Takeuchi
发明人： Takeshi Shimano , Tetsuo Ariyoshi , Kazuo Shigematsu , Koichi Maruyama , Shuichi Takeuchi
IPC分类号： G11B700
CPC分类号： G11B7/1378 , G11B7/093 , G11B7/0935 , G11B7/0943 , G11B7/13927
摘要： When it is intended to realize a lens having a large NA with one lens, an adjustment precision between both surfaces of the lens is very strict. Accordingly an objective lens having an NA of 0.8 or more was usually realized by two lenses. However, a working distance is small, and collision of the objective lens with a disc is apt to occur. A coma corrector for compensating coma caused by decentering of both surfaces in realizing the high NA lens with one lens is added. However, in this case, astigmatism occurs when the objective lens decenters from the coma corrector relatively accompanied with a tracking operation. The objective lens and the coma corrector are fixed to a mirror barrel so as to be unified with each other, and driven by a two-dimensional lens actuator. With such a constitution, decentering of the objective lens and the coma corrector does not occur, and hence astigmatism does not occur.
摘要翻译：当想要实现具有一个透镜的具有大NA的透镜时，透镜的两个表面之间的调节精度非常严格。因此，通常通过两个透镜实现NA为0.8以上的物镜。然而，工作距离小，容易发生物镜与盘的碰撞。添加了一个用于补偿由两个表面偏心造成的实现具有一个透镜的高NA透镜的昏迷校正器。然而，在这种情况下，当物镜相对于跟踪操作相对于昏迷校正器偏离时，发生散光。物镜和彗差校正器被固定到镜筒上，以便彼此一体化，并由二维透镜致动器驱动。通过这样的结构，不会发生物镜和昏迷校正器的偏心，因此不发生散光。

3. 发明授权

US06477129B2 Optical disc drive 有权
标题翻译：光盘驱动器
公开(公告)号：US06477129B2
公开(公告)日：2002-11-05
申请号：US09794913
申请日：2001-02-28
申请人： Koichi Maruyama , Takeshi Shimano , Shigeru Nakamura , Akira Arimoto , Kazuo Shigematsu
发明人： Koichi Maruyama , Takeshi Shimano , Shigeru Nakamura , Akira Arimoto , Kazuo Shigematsu
IPC分类号： G11B700
CPC分类号： G11B7/1374 , G11B7/0901 , G11B7/0908 , G11B7/0916 , G11B7/12 , G11B7/123 , G11B7/127 , G11B7/131 , G11B7/1353 , G11B7/139 , G11B2007/0006 , G11B2007/13727
摘要： An optical disc drive using either one of a first disc (e.g., DVD) and a second disc (e.g., CD), is provided with a first laser diode that emits a shorter wavelength beam, a second laser diode that emits a longer wavelength beam, an objective lens, and a driving unit that holds and rotates the optical disc. The optical axis of the objective lens is inclined relative to a normal to the optical disc. The first laser diode is located at a first position so that the coma, which is caused when the first laser beam is converged on a data recording surface of the first disc, is minimized, and the second laser diode is located at a second position so that the coma, which is caused when the second laser beam is converged on a data recording surface of the second disc, is minimized.
摘要翻译：使用第一盘（例如DVD）和第二盘（例如CD）中的任一个的光盘驱动器设置有发射较短波长束的第一激光二极管，发射较长波长束的第二激光二极管，物镜，以及保持和旋转光盘的驱动单元。物镜的光轴相对于光盘的法线倾斜。第一激光二极管位于第一位置，使得当第一激光束会聚在第一盘的数据记录表面上时引起的彗差被最小化，并且第二激光二极管位于第二位置当第二激光束会聚在第二盘的数据记录表面上时引起的彗差被最小化。

4. 发明授权

US06785203B2 Optical lens for optical disc drive with aberration suppression for recording/reproducing for a plurality of optical disc types 有权
标题翻译：用于光盘驱动器的光学透镜，用于多个光盘类型的记录/再现的像差抑制
公开(公告)号：US06785203B2
公开(公告)日：2004-08-31
申请号：US09793544
申请日：2001-02-27
申请人： Koichi Maruyama , Takeshi Shimano , Shigeru Nakamura , Akira Arimoto , Kazuo Shigematsu
发明人： Koichi Maruyama , Takeshi Shimano , Shigeru Nakamura , Akira Arimoto , Kazuo Shigematsu
IPC分类号： G11B709
CPC分类号： G11B7/1374 , G11B7/123 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： An objective lens converges a shorter wavelength laser beam on a DVD having a protective layer, which is 0.6 mm thick, and a longer wavelength laser beam on a CD having a protective layer, which is 1.2 mm thick. A common region is defined on the objective lens. The common region provides a numerical aperture appropriate for converging the longer wavelength laser beam on the CD. Coma of the objective lens in the first region is compensated better in a case where the longer wavelength laser beam is converged on the CD than a case where the shorter wavelength laser beam is converged on the DVD.
摘要翻译：物镜将较短波长的激光束会聚在具有0.6mm厚的保护层的DVD上，并且在具有1.2mm厚的保护层的CD上具有较长波长的激光束。在物镜上定义公共区域。公共区域提供适合于将更长波长的激光束会聚在CD上的数值孔径。在较长波长的激光束会聚在CD上的情况下，比较短波长的激光束会聚在DVD上的情况更好地补偿第一区域中的物镜的昏迷。

5. 发明授权

US08699310B2 Optical information recording medium, optical information recording/reproducing device and optical information recording/reproducing method 有权
标题翻译：光信息记录介质，光信息记录/再现装置和光信息记录/再现方法
公开(公告)号：US08699310B2
公开(公告)日：2014-04-15
申请号：US12680612
申请日：2008-08-06
申请人： Kenichi Shimada , Tatsuro Ide , Takeshi Shimano , Harukazu Miyamoto
发明人： Kenichi Shimada , Tatsuro Ide , Takeshi Shimano , Harukazu Miyamoto
IPC分类号： G11B7/0065
CPC分类号： G03H1/02 , G03H1/0256 , G03H1/22 , G03H2222/56 , G03H2223/19 , G03H2223/24 , G03H2250/33 , G03H2250/42 , G11B7/0065 , G11B7/24044
摘要： A holographic recording medium in which information can be reproduced by phase conjugate beam without requiring a mirror for obtaining the phase conjugate beam and its driving part and recording density is not reduced. The recording medium includes a recording layer in which an interference pattern is recorded and a light absorption/transmission layer which can be reversibly changed to be in a first state where signal beam and reference beam passed through the recording layer are absorbed at the time of recording of information and a second state where the reference beam is transmitted at the time of reproduction of information, and the reference beam transmitted through the light absorption/transmission layer is reflected by a reflection layer to produce the phase conjugate beam.
摘要翻译：可以通过相位共轭光再现信息的全息记录介质，而不需要用于获得相位共轭光束的反射镜及其驱动部分和记录密度。记录介质包括其中记录有干涉图案的记录层和可以可逆地改变为在记录时吸收信号束和参考光束通过记录层的第一状态的光吸收/透射层的信息和在再现信息时发送参考光束的第二状态，并且通过光吸收/透射层透射的参考光束被反射层反射以产生相位共轭光束。

6. 发明申请

US20120127548A1 MONOCULAR HOLOGRAPHIC DATA STORAGE SYSTEM ARCHITECTURE 有权
标题翻译：单色全息数据存储系统架构
公开(公告)号：US20120127548A1
公开(公告)日：2012-05-24
申请号：US13362127
申请日：2012-01-31
申请人： Kevin R. Curtis , Ken E. Anderson , Friso Schlottau , Tatsuro Ide , Ken'ichi Shimada , Takeshi Shimano , Harukazu Miyamoto
发明人： Kevin R. Curtis , Ken E. Anderson , Friso Schlottau , Tatsuro Ide , Ken'ichi Shimada , Takeshi Shimano , Harukazu Miyamoto
IPC分类号： G03H1/02 , G03H1/04
CPC分类号： G06F11/1004 , G03H1/265 , G03H2223/17 , G06F9/45533 , G11B7/0065 , G11B7/00736
摘要： A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage device or system. Further provided are articles comprising holographic storage media for recording or for reading recorded data using such devices or systems.
摘要翻译：一种用于提供全息存储介质中数据页的紧凑记录和/或读取的单目全息存储设备或系统。还提供了使用单眼全息存储装置或系统进行这种数据存储和/或数据恢复的方法。还提供了包括用于记录或使用这种装置或系统读取记录数据的全息存储介质的物品。

7. 发明申请

US20090080042A1 MONOCULAR HOLOGRAPHIC DATA STORAGE SYSTEM ARCHITECTURE 有权
标题翻译：单色全息数据存储系统架构
公开(公告)号：US20090080042A1
公开(公告)日：2009-03-26
申请号：US12325477
申请日：2008-12-01
申请人： Kevin R. Curtis , Ken E. Anderson , Friso Schlottau , Tatsuro Ide , Ken'ichi Shimada , Takeshi Shimano , Harukazu Miyamoto
发明人： Kevin R. Curtis , Ken E. Anderson , Friso Schlottau , Tatsuro Ide , Ken'ichi Shimada , Takeshi Shimano , Harukazu Miyamoto
IPC分类号： G03H1/26 , G03H1/04 , G03H1/22 , G03H1/02 , G03H1/10
CPC分类号： G06F11/1004 , G03H1/265 , G03H2223/17 , G06F9/45533 , G11B7/0065 , G11B7/00736
摘要： A monocular holographic storage device or system to provide for compact recording and/or reading of data pages in a holographic storage medium. Also provided are methods for carrying out such data storage and/or data recovery using a monocular holographic storage device or system. Further provided are articles comprising holographic storage media for recording or for reading recorded data using such devices or systems.
摘要翻译：一种用于提供全息存储介质中数据页的紧凑记录和/或读取的单目全息存储设备或系统。还提供了使用单眼全息存储装置或系统进行这种数据存储和/或数据恢复的方法。还提供了包括用于记录或使用这种装置或系统读取记录数据的全息存储介质的物品。

8. 发明授权

US07502302B2 Optical recording and reading equipment 失效
公开(公告)号：US07502302B2
公开(公告)日：2009-03-10
申请号：US11192082
申请日：2005-07-29
申请人： Koichi Watanabe , Takahiro Kurokawa , Masahiro Aoki , Takeshi Shimano
发明人： Koichi Watanabe , Takahiro Kurokawa , Masahiro Aoki , Takeshi Shimano
IPC分类号： G11B7/00
CPC分类号： G11B7/127 , G11B7/1263 , G11B7/128
摘要： Disclosed herewith is a data recording and reading equipment capable of reducing laser noise easily. At first, a laser beam source that can reduce the laser noise when reading data from a subject optical disk is obtained. A modulator capable of varying laser attenuation with a voltage is disposed so as to precede the laser, thereby the laser noise when reading data from the optical disk can be reduced without lowering the laser power when in writing.

9. 发明申请

US20070183274A1 Optical disk apparatus 失效
标题翻译：光盘装置
公开(公告)号：US20070183274A1
公开(公告)日：2007-08-09
申请号：US11363956
申请日：2006-03-01
申请人： Hiromi Kudo , Takahiro Kurokawa , Takeshi Shimano , Harukazu Miyamoto
发明人： Hiromi Kudo , Takahiro Kurokawa , Takeshi Shimano , Harukazu Miyamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/0943 , G11B7/1369
摘要： An optical disk apparatus for correcting astigmatism that influences the read/ write. If there is astigmatism, and auto-focus and tracking control are in operation, then a push-pull signal amplitude and a 2T signal amplitude vary with the variation of an amount of spherical aberration, resulting in two cases. In one case, the amount of spherical aberration to give the maximum value of push-pull signal amplitude agrees with the amount of spherical aberration to give the maximum value of 2T signal amplitude, and in the other case the two amounts do not agree. If there is no astigmatism, two amounts agree each other. If there in no agreement, then correction is made by using an astigmatism correcting element until the agreement is reached between the two. In the case where two amounts agree, specification is made for the existence and angle of astigmatism, and correction is made by using focus error signals from adjacent tracks.
摘要翻译：一种用于校正影响读/写的散光的光盘装置。如果存在散光，并且自动对焦和跟踪控制正在运行，则推挽信号幅度和2T信号幅度随球面像差量的变化而变化，导致两种情况。在一种情况下，给出推挽信号幅度的最大值的球面像差的量与给出2T信号幅度的最大值的球面像差量一致，而在另一种情况下，两种量不一致。如果没有散光，两个数量彼此相符。如果没有达成协议，则在使用散光矫正元件之前进行校正，直到两者达成一致。在两个数量一致的情况下，对散光的存在和角度进行规定，并且通过使用来自相邻轨道的聚焦误差信号进行校正。

10. 发明授权

US07251203B2 Optical disc drive apparatus, information reproducing or recording method 失效
标题翻译：光盘驱动装置，信息再现或记录方法
公开(公告)号：US07251203B2
公开(公告)日：2007-07-31
申请号：US10914194
申请日：2004-08-10
申请人： Takeshi Shimano , Tatsuro Ide
发明人： Takeshi Shimano , Tatsuro Ide
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/13927
摘要： Disclosed here is a method for solving a conventional problem that no spherical aberration signal can be detected from any push-pull signal that is easy to adjust an object photodetector when a differential push-pull signal is obtained. To achieve the above object, sub-beams used to detect a differential push-pull signal are defocused from the main beam and spherical aberration signals are detected and the compensation of the spherical aberration is started while tracking controlling is off and detection of spherical aberration signals is held while the tracking controlling is on. The present invention can thus obtain both of the spherical aberration signal and the differential push-pull signal at the same time with use of the conventional detection system.
摘要翻译：这里公开了一种解决传统问题的方法，即当获得差分推挽信号时，任何容易调整物体光电检测器的推挽信号都不能检测到球面像差信号。为了实现上述目的，用于检测差分推挽信号的子光束与主光束散焦，并且检测球面像差信号，并且在跟踪控制关闭并且检测球面像差信号时开始球面像差的补偿在跟踪控制开启时保持。因此，本发明可以使用传统的检测系统同时获得球面像差信号和差分推挽信号两者。

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