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1. 发明授权

US08233371B2 Objective lens, optical head and optical disc device 失效
标题翻译：物镜，光头和光盘装置
公开(公告)号：US08233371B2
公开(公告)日：2012-07-31
申请号：US12159425
申请日：2006-12-27
申请人： Fumitomo Yamasaki , Katsuhiko Hayashi , Sadao Mizuno , Hideki Aikoh
发明人： Fumitomo Yamasaki , Katsuhiko Hayashi , Sadao Mizuno , Hideki Aikoh
IPC分类号： G11B7/00
CPC分类号： G02B9/10 , G02B3/08 , G02B13/18 , G11B7/1275 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： Provides an objective lens, an optical head and an optical disc apparatus (drive) capable of compensating for various types of aberrations including wavelength changes for a plurality of types of optical discs including high density optical discs, DVDs and CDs with a good wavelength dispersion compensation ability and thus capable of providing good recording or reproduction characteristics.The objective lens according to the present invention includes a first lens and a second lens substantially in close contact with each other such that optical axes thereof match each other, and acts as a convex lens as a whole. Each lens includes a central portion including the optical axis and a peripheral portion located in a periphery of the central portion. The central portion of the first lens acts as a convex lens; and the central portion of the second lens acts as a concave lens. Where the refractive index of the first lens at d line (wavelength: 587.56 nm) is nd1, the Abbe constant of the first lens represented using the refractive indices at d line, F line (wavelength: 486.13 nm) and C line (wavelength: 656.27 nm) is νd1, the refractive index of the second lens at d line is nd2, and the Abbe constant of the second lens represented using the refractive indices at d line, F line and C line is νd2, the objective lens fulfills nd1>nd2 and νd1>νd2.
摘要翻译：提供能够补偿包括具有良好的波长色散补偿的高密度光盘，DVD和CD的多种类型的光盘的波长变化的各种像差的物镜，光头和光盘装置（驱动器）因此能够提供良好的记录或再现特性。根据本发明的物镜包括基本上彼此紧密接触的第一透镜和第二透镜，使得其光轴彼此匹配，并且作为整体起凸透镜的作用。每个透镜包括包括光轴的中心部分和位于中心部分的周边的周边部分。第一透镜的中心部分用作凸透镜; 并且第二透镜的中心部分用作凹透镜。在d线（波长：587.56nm）处的第一透镜的折射率为nd1的情况下，使用在d线，F线（波长：486.13nm）和C线（波长：48nm）处的折射率表示的第一透镜的阿贝常数 656.27nm）是d1，d线的第二透镜的折射率为nd2，使用d线，F线和C线的折射率表示的第二透镜的阿贝常数为d2，目标镜头满足nd1> nd2和＆ngr; d1>＆ngr; d2。

2. 发明申请

US20100220578A1 OBJECTIVE LENS, OPTICAL HEAD AND OPTICAL DISC DEVICE 失效
标题翻译：目标镜头，光头和光盘设备
公开(公告)号：US20100220578A1
公开(公告)日：2010-09-02
申请号：US12159425
申请日：2006-12-27
申请人： Fumitomo Yamasaki , Katsuhiko Hayashi , Sadao Mizuno , Hideki Aikoh
发明人： Fumitomo Yamasaki , Katsuhiko Hayashi , Sadao Mizuno , Hideki Aikoh
IPC分类号： G11B7/135 , G02B11/02 , G02B13/18
CPC分类号： G02B9/10 , G02B3/08 , G02B13/18 , G11B7/1275 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： Provides an objective lens, an optical head and an optical disc apparatus (drive) capable of compensating for various types of aberrations including wavelength changes for a plurality of types of optical discs including high density optical discs, DVDs and CDs with a good wavelength dispersion compensation ability and thus capable of providing good recording or reproduction characteristics.The objective lens according to the present invention includes a first lens and a second lens substantially in close contact with each other such that optical axes thereof match each other, and acts as a convex lens as a whole. Each lens includes a central portion including the optical axis and a peripheral portion located in a periphery of the central portion. The central portion of the first lens acts as a convex lens; and the central portion of the second lens acts as a concave lens. Where the refractive index of the first lens at d line (wavelength: 587.56 nm) is nd1, the Abbe constant of the first lens represented using the refractive indices at d line, F line (wavelength: 486.13 nm) and C line (wavelength: 656.27 nm) is νd1, the refractive index of the second lens at d line is nd2, and the Abbe constant of the second lens represented using the refractive indices at d line, F line and C line is νd2, the objective lens fulfills nd1>nd2 and νd1>νd2.
摘要翻译：提供能够补偿包括具有良好的波长色散补偿的高密度光盘，DVD和CD的多种类型的光盘的波长变化的各种像差的物镜，光头和光盘装置（驱动器）因此能够提供良好的记录或再现特性。根据本发明的物镜包括基本上彼此紧密接触的第一透镜和第二透镜，使得其光轴彼此匹配，并且作为整体起凸透镜的作用。每个透镜包括包括光轴的中心部分和位于中心部分的周边的周边部分。第一透镜的中心部分用作凸透镜; 并且第二透镜的中心部分用作凹透镜。在d线（波长：587.56nm）处的第一透镜的折射率为nd1的情况下，使用在d线，F线（波长：486.13nm）和C线（波长：48nm）处的折射率表示的第一透镜的阿贝常数 656.27nm）是d1，d线的第二透镜的折射率为nd2，使用d线，F线和C线的折射率表示的第二透镜的阿贝常数为d2，目标镜头满足nd1> nd2和＆ngr; d1>＆ngr; d2。

3. 发明授权

US07952979B2 Coupling lens, optical head and optical disc device 失效
标题翻译：耦合透镜，光头和光盘装置
公开(公告)号：US07952979B2
公开(公告)日：2011-05-31
申请号：US12305784
申请日：2007-06-15
申请人： Fumitomo Yamasaki , Sadao Mizuno , Katsuhiko Hayashi , Hideki Aikoh
发明人： Fumitomo Yamasaki , Sadao Mizuno , Katsuhiko Hayashi , Hideki Aikoh
IPC分类号： G11B7/135
CPC分类号： G11B7/1376 , G11B7/1378 , G11B7/139 , G11B7/13922 , G11B7/13925 , G11B2007/0006 , G11B2007/13727
摘要： Provides a coupling lens which, when used in combination with an objective lens for a plurality of types of optical discs such as a high density disc, DVD, CD or the like, is capable of compensating for various types of aberrations including those caused by wavelength changes and thus providing good recording or reproduction characteristics with a good wavelength dispersion compensation ability; and an optical head and an optical disc apparatus (drive).A coupling lens is incorporated into an optical head for collecting laser light emitted from a plurality of light sources and having different wavelengths on an information recording face of different types of optical information recording mediums respectively. The coupling lens comprises a first lens and a second lens which are substantially in close contact with each other such that optical axes thereof match each other and designed such that the laser light having different wavelengths are refracted by the close contact face. The coupling lens is afocal for the shortest wavelength among the different wavelengths of the laser light.
摘要翻译：提供耦合透镜，当与用于诸如高密度盘，DVD，CD等的多种类型的光盘的物镜组合使用时，能够补偿各种类型的像差，包括由波长改变，从而提供良好的记录或再现特性，具有良好的波长色散补偿能力; 以及光头和光盘装置（驱动器）。耦合透镜被结合到光学头中，用于分别在不同类型的光学信息记录介质的信息记录面上收集从多个光源发射并具有不同波长的激光。耦合透镜包括基本上彼此紧密接触的第一透镜和第二透镜，使得其光轴彼此匹配并且被设计成使得具有不同波长的激光被紧密接触面折射。耦合透镜对于激光的不同波长中的最短波长是无焦点的。

4. 发明申请

US20100002560A1 COUPLING LENS, OPTICAL HEAD AND OPTICAL DISC DEVICE 失效
标题翻译：耦合镜头，光头和光盘设备
公开(公告)号：US20100002560A1
公开(公告)日：2010-01-07
申请号：US12305784
申请日：2007-06-15
申请人： Fumitomo Yamasaki , Sadao Mizuno , Katsuhiko Hayashi , Hideki Aikoh
发明人： Fumitomo Yamasaki , Sadao Mizuno , Katsuhiko Hayashi , Hideki Aikoh
IPC分类号： G11B7/00
CPC分类号： G11B7/1376 , G11B7/1378 , G11B7/139 , G11B7/13922 , G11B7/13925 , G11B2007/0006 , G11B2007/13727
摘要： Provides a coupling lens which, when used in combination with an objective lens for a plurality of types of optical discs such as a high density disc, DVD, CD or the like, is capable of compensating for various types of aberrations including those caused by wavelength changes and thus providing good recording or reproduction characteristics with a good wavelength dispersion compensation ability; and an optical head and an optical disc apparatus (drive).A coupling lens is incorporated into an optical head for collecting laser light emitted from a plurality of light sources and having different wavelengths on an information recording face of different types of optical information recording mediums respectively. The coupling lens comprises a first lens and a second lens which are substantially in close contact with each other such that optical axes thereof match each other and designed such that the laser light having different wavelengths are refracted by the close contact face. The coupling lens is afocal for the shortest wavelength among the different wavelengths of the laser light.
摘要翻译：提供耦合透镜，当与用于诸如高密度盘，DVD，CD等的多种类型的光盘的物镜组合使用时，能够补偿各种类型的像差，包括由波长改变，从而提供良好的记录或再现特性，具有良好的波长色散补偿能力; 以及光头和光盘装置（驱动器）。耦合透镜被结合到光学头中，用于分别在不同类型的光学信息记录介质的信息记录面上收集从多个光源发射并具有不同波长的激光。耦合透镜包括基本上彼此紧密接触的第一透镜和第二透镜，使得其光轴彼此匹配并且被设计成使得具有不同波长的激光被紧密接触面折射。耦合透镜对于激光的不同波长中的最短波长是无焦点的。

5. 发明授权

US08483034B2 Optical pickup, inclination angle detection method, optical information device and information processing device 有权
标题翻译：光学拾取，倾斜角检测方法，光学信息装置和信息处理装置
公开(公告)号：US08483034B2
公开(公告)日：2013-07-09
申请号：US13702882
申请日：2011-11-09
申请人： Hidenori Wada , Kousei Sano , Keiichi Matsuzaki , Sadao Mizuno
发明人： Hidenori Wada , Kousei Sano , Keiichi Matsuzaki , Sadao Mizuno
IPC分类号： G11B7/00
CPC分类号： G11B7/13 , G11B7/0956 , G11B7/131 , G11B7/1353 , G11B7/1365 , G11B7/1387 , G11B2007/0013
摘要： An optical pickup, an inclination angle detection method, an optical information device, and an information processing device capable of reliably and accurately detecting a relative inclination angle between an end face of a solid immersion lens and a surface of an optical recording medium are provided. A convergence position modifying unit modifies convergence states of a first beam and a second beam according to layers of an optical recording medium, a first optical detector includes a first light receiving section which receives the converged first beam and a second light receiving section which receives the converged second beam, and the first optical detector detects a relative inclination angle between an end face of a solid immersion lens and a surface of the optical recording medium based on a difference in quantities of received light between the first light receiving section and the second light receiving section.
摘要翻译：提供能够可靠且准确地检测固体浸没透镜的端面与光记录介质的表面之间的相对倾斜角度的光学拾取器，倾斜角度检测方法，光学信息装置和信息处理装置。会聚位置修改单元根据光记录介质的层来修改第一光束和第二光束的会聚状态，第一光检测器包括接收会聚的第一光束的第一光接收部分和接收第一光接收部分的第二光接收部分，会聚第二光束，并且第一光学检测器基于第一光接收部分和第二光线之间的接收光量的差异来检测固体浸没透镜的端面与光记录介质的表面之间的相对倾斜角度接收部分。

6. 再颁专利

USRE43126E1 Optical pickup head and information recording/reproducing device 有权
标题翻译：光拾取头和信息记录/再现装置
公开(公告)号：USRE43126E1
公开(公告)日：2012-01-24
申请号：US11529689
申请日：2006-09-28
申请人： Hideki Hayashi , Sadao Mizuno , Daisuke Ogata , Shin-ichi Kadowaki , Kousei Sano , Jouji Anzai , Akihiro Yasuda
发明人： Hideki Hayashi , Sadao Mizuno , Daisuke Ogata , Shin-ichi Kadowaki , Kousei Sano , Jouji Anzai , Akihiro Yasuda
IPC分类号： G11G7/00
CPC分类号： G11B7/131 , G11B7/0903 , G11B7/1353 , G11B7/13927 , G11B2007/0013
摘要： An optical pickup head is provided with a light source, a diffracting means for creating a plurality of diffracted beams, a converging means for focusing the diffracted beams onto an optical storage medium, a beam branching means for branching the plurality of beams reflected by the optical storage medium, and an optical detecting means for outputting a signal corresponding to the amount of light of the received beams. The optical detecting means has main beam light receiving portions and sub-beam light receiving portions. The amount of light of the first or higher order diffracted beams when they are substantially focused on and reflected by a focus plane of the plurality of information recording planes is equal to or greater than the amount of light of the zero order diffracted beam when it is reflected without focusing by a non-focus plane other then the focus plane of the plurality of information recording planes. The invention provides an optical pickup head where offset is not generated in the TE signals even during tracking with the objective lens when a two-layered disk is used.
摘要翻译：光拾取头设置有光源，用于产生多个衍射光束的衍射装置，用于将衍射光束聚焦到光存储介质上的会聚装置，用于将由光学器件反射的多个光束分支的光束分支装置存储介质，以及光检测装置，用于输出对应于接收光束的光量的信号。光检测装置具有主光束光接收部分和副光束光接收部分。当它们基本上聚焦在多个信息记录面的聚焦平面上并被其反射时，第一或更高阶衍射光束的光量等于或大于零级衍射光束的光量反射而不聚焦在多个信息记录平面的焦点平面之外的非聚焦平面。本发明提供了一种光拾取头，即使在使用双层盘的情况下在物镜进行跟踪期间，也不会在TE信号中产生偏移。

7. 发明授权

US07760612B2 Optical element and optical head device using it, and optical information device using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information device 有权
标题翻译：使用它的光学元件和光学头装置，以及使用该光学头装置的光学信息装置，以及使用该光学信息装置的计算机，光盘播放器，汽车导航系统，光盘记录器和光盘服务器
公开(公告)号：US07760612B2
公开(公告)日：2010-07-20
申请号：US10504373
申请日：2003-01-30
申请人： Yoshiaki Komma , Sadao Mizuno , Kousei Sano
发明人： Yoshiaki Komma , Sadao Mizuno , Kousei Sano
IPC分类号： G11B7/00
CPC分类号： G11B7/1356 , G11B7/1275 , G11B7/1362 , G11B7/1365 , G11B7/1374 , G11B7/1378 , G11B7/1392 , G11B7/1395 , G11B2007/0006
摘要： Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs using an optical head capable of recording or reproducing high-density optical disks. An optical element (8) is provided between a first and second laser light source and an objective lens (18) for the purpose of converting a wave front of a second optical beam 32. Furthermore, the optical element (8) and the objective lens (18) are fixed to move as a single piece.
摘要翻译：提供具有大数值孔径（NA）的物镜，本发明使用能够记录或再现高密度光盘的光学头记录或播放诸如CD和DVD的常规光盘。为了转换第二光束32的波前，光学元件（8）设置在第一和第二激光源与物镜（18）之间。此外，光学元件（8）和物镜（18）固定成单件移动。

8. 发明授权

US07486606B2 Optical head and optical information apparatus for recording or reproducing information on an information recording medium 有权
标题翻译：用于在信息记录介质上记录或再现信息的光头和光信息装置
公开(公告)号：US07486606B2
公开(公告)日：2009-02-03
申请号：US11151272
申请日：2005-06-14
申请人： Kousei Sano , Yoshiaki Komma , Sadao Mizuno
发明人： Kousei Sano , Yoshiaki Komma , Sadao Mizuno
IPC分类号： G11B7/00
CPC分类号： G11B7/1353
摘要： An optical head which is capable of realizing a stable tracking control, even if the rotational center of an information recording medium is not located on the extension line of the transfer directions of a light-concentrating element, includes: a semiconductor laser which emits a beam of light; an objective lens which concentrates the beam of light on an optical disk; a transfer mechanism which transfers the objective lens between the outermost circumference and the innermost circumference of the recording area of the optical disk along the optical disk; and a photo-detector which detects a beam of light that returns from the optical disk. The photo-detector includes a plurality of areas which are divided by a division line. The division line is set parallel to the tangential directions of the track in a predetermined position on the transfer line of the objective lens between the outermost circumference and the innermost circumference of the recording area, and the plurality of areas are divided, by a lateral division line which intersects the division line, into a first area on which a beam of light that mainly includes a tracking component is incident and a second area on which a beam of light that does not include the tracking component is incident.
摘要翻译：即使信息记录介质的旋转中心不位于聚光元件的传送方向的延长线上，也能够实现稳定的跟踪控制的光学头包括：发射光束的半导体激光器的光将光束聚集在光盘上的物镜; 传送机构，其沿着光盘在光盘的记录区域的最外圆周和最内圆周之间传送物镜; 以及光检测器，其检测从光盘返回的光束。光检测器包括由划分线划分的多个区域。分割线与记录区域的最外圆周和最内圆周之间的物镜的传送线上的预定位置处的轨道的切线方向平行设置，并且通过横向划分来划分多个区域与分割线相交的第一区域进入主要包括跟踪分量的光束入射的第一区域和不包括跟踪组件的光束入射的第二区域。

9. 发明授权

US07330419B2 Optical head device and optical information apparatus using the same 有权
标题翻译：光头装置及其使用的光信息装置
公开(公告)号：US07330419B2
公开(公告)日：2008-02-12
申请号：US11443751
申请日：2006-05-31
申请人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
发明人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1398 , G11B7/1353 , G11B7/1367 , G11B7/1372 , G11B7/1378 , G11B7/13922 , G11B7/13925
摘要： An optical head device includes a focusing optical system for focusing a laser beam emitted from a semiconductor laser light source on an optical information medium with an objective lens. A chromatic aberration correction element for correcting chromatic aberration occurring in the objective lens is provided between the semiconductor laser light source and the optical information medium. A light distribution correction element in which the transmittance increases with the distance from the center of the aperture surface of the objective lens is provided so as to correct a reduction of the intensity of the light incident on the aperture surface of the objective lens with the distance from the center of the aperture surface.
摘要翻译：光头装置包括聚焦光学系统，用于将从半导体激光光源发射的激光束聚焦在具有物镜的光信息介质上。在半导体激光光源和光信息介质之间设置用于校正物镜中出现的色像差的色像差校正元件。提供透光率随着距离物镜的孔径表面的中心的距离而增加的光分布校正元件，以便校正入射到物镜的孔表面上的光的强度的降低，距离从孔表面的中心。

10. 发明申请

US20050117497A1 Optical element and optical head device using it and optical information device using this optical head device, and computer, optical disk player car navigation system, optical disk recorder and optical disk server using this optical information device 有权
标题翻译：使用它的光学元件和光学头装置和使用该光学头装置的光学信息装置，以及使用该光学信息装置的计算机，光盘播放器汽车导航系统，光盘记录器和光盘服务器
公开(公告)号：US20050117497A1
公开(公告)日：2005-06-02
申请号：US10504373
申请日：2003-01-30
申请人： Yoshiaki Komma , Sadao Mizuno , Kousei Sano
发明人： Yoshiaki Komma , Sadao Mizuno , Kousei Sano
IPC分类号： G11B7/00 , G11B7/125
CPC分类号： G11B7/1356 , G11B7/1275 , G11B7/1362 , G11B7/1365 , G11B7/1374 , G11B7/1378 , G11B7/1392 , G11B7/1395 , G11B2007/0006
摘要： Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs using an optical head capable of recording or reproducing high-density optical disks. An optical element (8) is provided between a first and second laser light source and an objective lens (18) for the purpose of converting a wave front of a second optical beam 32. Furthermore, the optical element (8) and the objective lens (18) are fixed to move as a single piece.
摘要翻译：提供具有大数值孔径（NA）的物镜，本发明使用能够记录或再现高密度光盘的光学头记录或播放诸如CD和DVD的常规光盘。为了转换第二光束32的波前，光学元件（8）设置在第一和第二激光光源与物镜（18）之间。此外，光学元件（8）和物镜（18）被固定成单件移动。

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