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21. 发明申请

US20060181985A1 Optical disk device and information recording/reproducing method 有权
公开(公告)号：US20060181985A1
公开(公告)日：2006-08-17
申请号：US11386381
申请日：2006-03-22
申请人： Yoshiaki Komma , Hidenori Wada , Seiji Nishino
发明人： Yoshiaki Komma , Hidenori Wada , Seiji Nishino
IPC分类号： G11B7/00
CPC分类号： G11B7/1369 , G11B7/08511 , G11B7/1378 , G11B7/13925 , G11B7/13927 , G11B2007/0013 , G11B2007/13727
摘要： An optical disk device is provided with an optical pickup that includes a convergent optical system having an objective lens for converging a light beam emitted from the laser light source to form a microspot on an optical disk and an aberration correcting optical system for controlling a spherical aberration of the convergent optical system, and performs information recording or reproduction with respect to a multi-layer optical disk having at least a first recording layer and a second recording layer. In the optical disk device, an operation of changing a correction quantity of the spherical aberration from a value adequate for the first recording layer to a predetermined value is started before an operation of moving a focus position of the microspot from the first layer to the second layer is completed. This allows a focus control to be performed stably with respect to the second recording layer in a state in which the spherical aberration correction already has been carried out, thereby preventing the focus control from failing due to an unsuccessful interlayer jump.

22. 发明授权

US07034980B2 Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method 有权
标题翻译：光学元件，光学头，光学记录再现装置和光学记录/再现方法
公开(公告)号：US07034980B2
公开(公告)日：2006-04-25
申请号：US11203914
申请日：2005-08-15
申请人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
发明人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
IPC分类号： G02F1/03 , G02F1/01 , G02F1/00 , G02F1/13 , G11B7/00
CPC分类号： G11B7/13925 , G02F2203/18 , G11B7/0948 , G11B7/1369 , G11B7/13927 , G11B2007/0013
摘要： The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode 13, a first opposing electrode 17 arranged in opposition to the first voltage application electrode 13, and a first phase changing layer 15 arranged between the first voltage application electrode 13 and the first opposing electrode 17. By changing a voltage between the first voltage application electrode 13 and the first opposing electrode 17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer 15.
摘要翻译：本发明提供了一种光学元件，通过该光学元件可以配置光学头，其中当物镜移动时，校正效果几乎没有劣化，以及使用这种光学元件的光学头和光学记录/再现装置。本发明还提出了一种新颖的光学记录/再现装置和光学记录/再现方法。光学元件包括第一电压施加电极13，与第一电压施加电极13相对布置的第一相对电极17和布置在第一施加电极13和第一相对电极17之间的第一相变层15。通过改变第一电压施加电极13和第一相对电极17之间的电压，将入射到第一相变层15上的光转换成球面波的相位。

23. 发明申请

US20050135206A1 Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method 有权
标题翻译：光学元件，光学头，光学记录再现装置和光学记录/再现方法
公开(公告)号：US20050135206A1
公开(公告)日：2005-06-23
申请号：US11031634
申请日：2005-01-07
申请人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
发明人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
IPC分类号： G02F1/00 , G11B7/00 , G11B7/09 , G11B7/135
CPC分类号： G11B7/13925 , G02F2203/18 , G11B7/0948 , G11B7/1369 , G11B7/13927 , G11B2007/0013
摘要： The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode 13, a first opposing electrode 17 arranged in opposition to the first voltage application electrode 13, and a first phase changing layer 15 arranged between the first voltage application electrode 13 and the first opposing electrode 17. By changing a voltage between the first voltage application electrode 13 and the first opposing electrode 17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer 15.
摘要翻译：本发明提供了一种光学元件，通过该光学元件可以配置光学头，其中当物镜移动时，校正效果几乎没有劣化，以及使用这种光学元件的光学头和光学记录/再现装置。本发明还提出了一种新颖的光学记录/再现装置和光学记录/再现方法。光学元件包括第一电压施加电极13，与第一电压施加电极13相对布置的第一相对电极17和布置在第一施加电极13和第一相对电极17之间的第一相变层15。通过改变第一电压施加电极13和第一相对电极17之间的电压，将入射到第一相变层15上的光转换成球面波的相位。

24. 发明申请

US20080112303A1 Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method 有权
标题翻译：光学元件，光学头，光学记录再现装置和光学记录/再现方法
公开(公告)号：US20080112303A1
公开(公告)日：2008-05-15
申请号：US12002380
申请日：2007-12-17
申请人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
发明人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G02F2203/18 , G11B7/0948 , G11B7/1369 , G11B7/13927 , G11B2007/0013
摘要： The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode 13, a first opposing electrode 17 arranged in opposition to the first voltage application electrode 13, and a first phase changing layer 15 arranged between the first voltage application electrode 13 and the first opposing electrode 17. By changing a voltage between the first voltage application electrode 13 and the first opposing electrode 17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer 15.
摘要翻译：本发明提供了一种光学元件，通过该光学元件可以配置光学头，其中当物镜移动时，校正效果几乎没有劣化，以及使用这种光学元件的光学头和光学记录/再现装置。本发明还提出了一种新颖的光学记录/再现装置和光学记录/再现方法。光学元件包括第一电压施加电极13，与第一电压施加电极13相对布置的第一相对电极17和布置在第一施加电极13和第一相对电极17之间的第一相变层15。通过改变第一电压施加电极13和第一相对电极17之间的电压，将入射到第一相变层15上的光转换成球面波的相位。

25. 发明授权

US07158450B2 Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method 有权
公开(公告)号：US07158450B2
公开(公告)日：2007-01-02
申请号：US10892066
申请日：2004-07-14
申请人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
发明人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
IPC分类号： G11B7/00 , G11B7/135 , G11B7/20
CPC分类号： G11B7/13925 , G02F2203/18 , G11B7/0948 , G11B7/1369 , G11B7/13927 , G11B2007/0013
摘要： The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode 13, a first opposing electrode 17 arranged in opposition to the first voltage application electrode 13, and a first phase changing layer 15 arranged between the first voltage application electrode 13 and the first opposing electrode 17. By changing a voltage between the first voltage application electrode 13 and the first opposing electrode 17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer 15.

26. 发明授权

US06987598B2 Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method 失效
标题翻译：光学元件，光学头，光学记录再现装置和光学记录/再现方法
公开(公告)号：US06987598B2
公开(公告)日：2006-01-17
申请号：US10892009
申请日：2004-07-14
申请人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
发明人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
IPC分类号： G02F1/03 , G02F1/01 , G02F1/00 , G11B7/00
CPC分类号： G11B7/13925 , G02F2203/18 , G11B7/0948 , G11B7/1369 , G11B7/13927 , G11B2007/0013
摘要： The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode 13, a first opposing electrode 17 arranged in opposition to the first voltage application electrode 13, and a first phase changing layer 15 arranged between the first voltage application electrode 13 and the first opposing electrode 17. By changing a voltage between the first voltage application electrode 13 and the first opposing electrode 17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer 15.
摘要翻译：本发明提供了一种光学元件，通过该光学元件可以配置光学头，其中当物镜移动时，校正效果几乎没有劣化，以及使用这种光学元件的光学头和光学记录/再现装置。本发明还提出了一种新颖的光学记录/再现装置和光学记录/再现方法。光学元件包括第一电压施加电极13，与第一电压施加电极13相对布置的第一相对电极17和布置在第一施加电极13和第一相对电极17之间的第一相变层15。通过改变第一电压施加电极13和第一相对电极17之间的电压，将入射到第一相变层15上的光转换成球面波的相位。

27. 发明授权

US06954417B2 Optical disk device and information recording/reproducing method 有权
标题翻译：光盘装置和信息记录/再现方法
公开(公告)号：US06954417B2
公开(公告)日：2005-10-11
申请号：US09946645
申请日：2001-09-04
申请人： Yoshiaki Komma , Hidenori Wada , Seiji Nishino
发明人： Yoshiaki Komma , Hidenori Wada , Seiji Nishino
IPC分类号： G11B7/00 , G11B7/085 , G11B7/135
CPC分类号： G11B7/1369 , G11B7/08511 , G11B7/1378 , G11B7/13925 , G11B7/13927 , G11B2007/0013 , G11B2007/13727
摘要： An optical disk device is provided with an optical pickup that includes a convergent optical system having an objective lens for converging a light beam emitted from the laser light source to form a microspot on an optical disk and an aberration correcting optical system for controlling a spherical aberration of the convergent optical system, and performs information recording or reproduction with respect to a multi-layer optical disk having at least a first recording layer and a second recording layer. In the optical disk device, an operation of changing a correction quantity of the spherical aberration from a value adequate for the first recording layer to a predetermined value is started before an operation of moving a focus position of the microspot from the first layer to the second layer is completed. This allows a focus control to be performed stably with respect to the second recording layer in a state in which the spherical aberration correction already has been carried out, thereby preventing the focus control from failing due to an unsuccessful interlayer jump.
摘要翻译：光盘装置具有光学拾取器，该光学拾取器包括会聚光学系统，该会聚光学系统具有用于会聚从激光光源发射的光束以在光盘上形成微点的物镜，以及用于控制球面像差的像差校正光学系统并且对具有至少第一记录层和第二记录层的多层光盘执行信息记录或再现。在光盘装置中，将微球的聚焦位置从第一层移动到第二层的操作之前开始将球面像差的校正量从适合于第一记录层的值改变到预定值的操作层完成。这允许在已经执行球面像差校正的状态下相对于第二记录层稳定地执行聚焦控制，从而防止聚焦控制由于不成功的层间跳跃而失败。

28. 发明授权

US5748599A Holographic optical device 失效
标题翻译：全息光学装置
公开(公告)号：US5748599A
公开(公告)日：1998-05-05
申请号：US785542
申请日：1997-01-17
申请人： Hiroaki Yamamoto , Tetsuo Saimi , Seiji Nishino , Yoshiaki Komma , Hidenori Wada
发明人： Hiroaki Yamamoto , Tetsuo Saimi , Seiji Nishino , Yoshiaki Komma , Hidenori Wada
IPC分类号： G11B7/09 , G11B7/12 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/0901 , G11B7/094 , G11B7/123 , G11B7/0912 , G11B7/0916
摘要： A light beam emitted from a semiconductor laser element is collimated by a collimating lens, and is applied to an optical disk through a polarizing holographic beam splitter, a .lambda./4 plate and an objective lens, a light beam reflected by the optical disk is applied to the polarizing holographic beam splitter and is diffracted. Diffracted light beams of +1st order and -1st order are applied to two photodetectors, and a focus error signal and a tracking error signal are obtained on the basis of the diffracted light beam of +1st order and an information signal is obtained on the basis of the diffracted light beam of -1st order.
摘要翻译：从半导体激光元件发射的光束被准直透镜准直，并通过偏振全息光束分离器，λ/ 4板和物镜施加到光盘上，施加由光盘反射的光束到偏振全息分束器并被衍射。 + 1级和1级的衍射光束被施加到两个光电检测器，并且基于+ 1阶的衍射光束获得聚焦误差信号和跟踪误差信号，并且基于的衍射光束。

29. 发明授权

US07170664B2 Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method 有权
标题翻译：光学元件，光学头，光学记录再现装置和光学记录/再现方法
公开(公告)号：US07170664B2
公开(公告)日：2007-01-30
申请号：US11204270
申请日：2005-08-15
申请人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
发明人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
IPC分类号： G02F1/03 , G02F1/01 , G02F1/00 , G02F1/13 , G11B7/00
CPC分类号： G11B7/13925 , G02F2203/18 , G11B7/0948 , G11B7/1369 , G11B7/13927 , G11B2007/0013
摘要： The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode 13, a first opposing electrode 17 arranged in opposition to the first voltage application electrode 13, and a first phase changing layer 15 arranged between the first voltage application electrode 13 and the first opposing electrode 17. By changing a voltage between the first voltage application electrode 13 and the first opposing electrode 17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer 15.
摘要翻译：本发明提供了一种光学元件，通过该光学元件可以配置光学头，其中当物镜移动时，校正效果几乎没有劣化，以及使用这种光学元件的光学头和光学记录/再现装置。本发明还提出了一种新颖的光学记录/再现装置和光学记录/再现方法。光学元件包括第一电压施加电极13，与第一电压施加电极13相对布置的第一相对电极17和布置在第一施加电极13和第一相对电极17之间的第一相变层15。通过改变第一电压施加电极13和第一相对电极17之间的电压，将入射到第一相变层15上的光转换成球面波的相位。

30. 发明申请

US20060023607A1 Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method 审中-公开
公开(公告)号：US20060023607A1
公开(公告)日：2006-02-02
申请号：US11238621
申请日：2005-09-29
申请人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
发明人： Hidenori Wada , Tetsuo Saimi , Daisuke Ogata , Seiji Nishino , Hiroaki Yamamoto , Shin-ichi Kadowaki , Yoshiaki Komma
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G02F2203/18 , G11B7/0948 , G11B7/1369 , G11B7/13927 , G11B2007/0013
摘要： The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode 13, a first opposing electrode 17 arranged in opposition to the first voltage application electrode 13, and a first phase changing layer 15 arranged between the first voltage application electrode 13 and the first opposing electrode 17. By changing a voltage between the first voltage application electrode 13 and the first opposing electrode 17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer 15.

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