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1. 发明申请

US20110305131A1 INFORMATION RECORDING MEDIUM, INFORMATION SUPPLY SYSTEM, AND OPTICAL INFORMATION DEVICE 审中-公开
标题翻译：信息记录介质，信息供应系统和光信息设备
公开(公告)号：US20110305131A1
公开(公告)日：2011-12-15
申请号：US13217787
申请日：2011-08-25
申请人： Fumitomo Yamasaki , Kanji Wakabayashi , Yoshiaki Komma , Toshiyasu Tanaka
发明人： Fumitomo Yamasaki , Kanji Wakabayashi , Yoshiaki Komma , Toshiyasu Tanaka
IPC分类号： G11B7/00
CPC分类号： G11B7/1387 , G11B7/1275 , G11B7/1374 , G11B7/24038 , G11B7/24079 , G11B2007/0006 , G11B2007/0013
摘要： An optical disk compliant with both a conventional optical disk such as a BD, HD DVD, and the like and a next-generation high-density optical disk according to a near-field light recording system and the like is provided.An information recording medium includes a first information recording layer and a second information recording layer, to/from which information is recorded or reproduced using laser beam. The first information recording layer is formed at a laser beam entrance surface, and is configured so that information can be recorded thereupon and/or reproduced therefrom using a first objective lens having a first numerical aperture NA1 and laser beam of a first wavelength λ1. The second information recording layer is formed so as to have a distance to the laser beam entrance surface is 0.05 mm to 1.2 mm and is configured so that information can be recorded thereupon and/or reproduced therefrom using a second objective lens having a second numerical aperture NA2 and laser beam of a second wavelength λ2. When a diffraction limit δ2, determined by the numerical aperture NA2 and the second wavelength λ2, is taken as δ2=0.61×λ2/NA2, a track pitch Tp1 of a track formed on the first information recording layer is Tp1
摘要翻译：提供了兼容诸如BD，HD DVD等常规光盘的光盘以及根据近场光记录系统等的下一代高密度光盘。信息记录介质包括第一信息记录层和第二信息记录层，使用激光束对信息进行记录或再现。第一信息记录层形成在激光束入射面上，并且被配置为使用具有第一数值孔径NA1和第一波长λ1的激光束的第一物镜可以在其上记录和/或从其再现信息。第二信息记录层被形成为具有到激光束入射面的距离为0.05mm至1.2mm，并且被配置为使得可以使用具有第二数值孔径的第二物镜在其上记录和/或从其再现信息 NA2和第二波长λ2的激光束。当由数值孔径NA2和第二波长λ2确定的衍射极限δ2作为δ2= 0.61×λ2/ NA2时，形成在第一信息记录层上的轨道的轨道间距Tp1为Tp1 <δ2。

2. 发明授权

US08064296B2 Optical head, optical disc device and information recording and/or reproducing device 失效
标题翻译：光头，光盘装置和信息记录和/或再现装置
公开(公告)号：US08064296B2
公开(公告)日：2011-11-22
申请号：US12415033
申请日：2009-03-31
申请人： Fumitomo Yamasaki , Yoshiaki Komma , Toshiyasu Tanaka , Kanji Wakabayashi
发明人： Fumitomo Yamasaki , Yoshiaki Komma , Toshiyasu Tanaka , Kanji Wakabayashi
IPC分类号： G11B11/00
CPC分类号： G11B7/1395 , G11B7/1275 , G11B2007/0006
摘要： An optical head is provided with a light source for emitting a first laser beam having a first wavelength shorter than 430 nm, a two-wavelength light source for emitting a second laser beam having a second wavelength equal to or longer than 430 nm, a flat beam splitter in the form of a single plate for reflecting the first laser beam emitted from the light source, a wedge prism in the form of a single plate for reflecting the first laser beam reflected by the flat beam splitter and transmitting the second laser beam emitted from the two-wavelength light source, and an objective lens for focusing the first laser beam reflected by the wedge prism on an information recording surface of a BD. The light source is arranged such that the optical axis of the first laser beam emitted from the light source is inclined with respect to that of the second laser beam emitted from the two-wavelength light source. By this construction, the miniaturization of the optical head can be realized.
摘要翻译：光头设置有用于发射第一波长短于430nm的第一激光束的光源，用于发射第二波长等于或大于430nm的第二激光束的双波长光源，平坦用于反射从光源发射的第一激光束的单板形式的分束器，以单个板形式的楔形棱镜，用于反射由平面分束器反射的第一激光束并透射发射的第二激光束和用于将由楔形棱镜反射的第一激光束聚焦在BD的信息记录表面上的物镜。光源被布置成使得从光源发射的第一激光束的光轴相对于从双波长光源发射的第二激光束的光轴倾斜。通过这种结构，可以实现光学头的小型化。

3. 发明授权

US08031574B2 Information recording medium, information supply system, and optical information device 失效
标题翻译：信息记录介质，信息提供系统和光信息设备
公开(公告)号：US08031574B2
公开(公告)日：2011-10-04
申请号：US11940799
申请日：2007-11-15
申请人： Fumitomo Yamasaki , Kanji Wakabayashi , Yoshiaki Komma , Toshiyasu Tanaka
发明人： Fumitomo Yamasaki , Kanji Wakabayashi , Yoshiaki Komma , Toshiyasu Tanaka
IPC分类号： G11B7/00
CPC分类号： G11B7/1387 , G11B7/1275 , G11B7/1374 , G11B7/24038 , G11B7/24079 , G11B2007/0006 , G11B2007/0013
摘要： An optical disk compliant with both a conventional optical disk such as a BD, HD DVD, and the like and a next-generation high-density optical disk according to a near-field light recording system and the like is provided.An information recording medium includes a first information recording layer and a second information recording layer, to/from which information is recorded or reproduced using laser beam. The first information recording layer is formed at a laser beam entrance surface, and is configured so that information can be recorded thereupon and/or reproduced therefrom using a first objective lens having a first numerical aperture NA1 and laser beam of a first wavelength λ1. The second information recording layer is formed so as to have a distance to the laser beam entrance surface is 0.05 mm to 1.2 mm and is configured so that information can be recorded thereupon and/or reproduced therefrom using a second objective lens having a second numerical aperture NA2 and laser beam of a second wavelength λ2. When a diffraction limit δ2, determined by the numerical aperture NA2 and the second wavelength λ2, is taken as δ2=0.61×λ2/NA2, a track pitch Tp1 of a track formed on the first information recording layer is Tp1
摘要翻译：提供了兼容诸如BD，HD DVD等常规光盘的光盘以及根据近场光记录系统等的下一代高密度光盘。信息记录介质包括第一信息记录层和第二信息记录层，使用激光束对信息进行记录或再现。第一信息记录层形成在激光束入射面上，并且被配置为使用具有第一数值孔径NA1和第一波长λ1的激光束的第一物镜可以在其上记录和/或从其再现信息。第二信息记录层被形成为具有到激光束入射面的距离为0.05mm至1.2mm，并且被配置为使得可以使用具有第二数值孔径的第二物镜在其上记录和/或从其再现信息 NA2和第二波长λ2的激光束。当由数值孔径NA2和第二波长λ2确定的衍射极限δ2作为δ2= 0.61×λ2/ NA2时，形成在第一信息记录层上的轨道的轨道间距Tp1为Tp1 <δ2。

4. 发明申请

US20130021884A1 OPTICAL DISK DRIVING APPARATUS, OPTICAL DISK DRIVING SYSTEM, VEHICLE EQUIPPED WITH OPTICAL DISK DRIVING SYSTEM, METHOD OF CORRECTING SPHERICAL ABERRATION IN OPTICAL DISK DRIVING APPARATUS, PROGRAM AND RECORDING MEDIUM 有权
标题翻译：光盘驱动装置，光盘驱动系统，配有光盘驱动系统的车辆，光盘驱动装置，程序和记录介质校正球形方法
公开(公告)号：US20130021884A1
公开(公告)日：2013-01-24
申请号：US13359834
申请日：2012-01-27
申请人： Yoshiaki KOMMA , Fumitomo Yamasaki , Toshiyasu Tanaka , Kanji Wakabayashi
发明人： Yoshiaki KOMMA , Fumitomo Yamasaki , Toshiyasu Tanaka , Kanji Wakabayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/1378 , G11B7/13925
摘要： An optical disk driving apparatus includes an optical head device having a laser light source, a converging optical system converging a light beam emitted by the laser light source onto an optical disk, a photo detector receiving reflected light reflected by the optical disk, and an aberration correcting optical system controlling aberration of the converging optical system; a motor rotating the optical disk; and a control section receiving a signal from the photo detector, wherein the converging optical system has an objective lens formed using resin as a main material, the aberration correcting optical system has a spherical aberration correcting element correcting spherical aberration, and the control section evaluates quality of a reproduction signal for information in the optical disk by using the reflected light received by the photo detector, and utilizes a result of the evaluation to perform closed loop control on the spherical aberration correcting element.
摘要翻译：光盘驱动装置包括具有激光光源的光学头装置，将由激光光源发射的光束会聚在光盘上的会聚光学系统，接受由光盘反射的反射光的光电检测器和像差调整会聚光学系统的像差的光学系统; 旋转光盘的电机; 以及控制部分，其接收来自光检测器的信号，其中会聚光学系统具有使用树脂作为主要材料形成的物镜，像差校正光学系统具有矫正球面像差的球面像差校正元件，并且控制部分评估质量通过使用由光电检测器接收的反射光来获得光盘中的信息的再现信号，并利用评估结果对球面像差校正元件执行闭环控制。

5. 发明授权

US08072870B2 Optical pickup and optical disc drive 失效
标题翻译：光学拾取和光盘驱动器
公开(公告)号：US08072870B2
公开(公告)日：2011-12-06
申请号：US11966079
申请日：2007-12-28
申请人： Toshiyasu Tanaka , Fumitomo Yamasaki , Kanji Wakabayashi , Yoshiaki Komma
发明人： Toshiyasu Tanaka , Fumitomo Yamasaki , Kanji Wakabayashi , Yoshiaki Komma
IPC分类号： G11B7/135
CPC分类号： G11B7/1356 , G11B7/126 , G11B7/1374 , G11B7/1376 , G11B7/13922 , G11B7/13925 , G11B7/1395 , G11B2007/0006
摘要： The present invention provides an optical structure of an optical pickup for adjusting an exit light quantity of a light source, so as not to have adverse effect on reliability of semiconductor laser to be suited to the quantity of light. The exit light quantity of the light source is adjusted in consideration of a difference in reflectivity of optical discs used in recording or reproducing. With this configuration, when composing a compatible optical pickup for recording or reproducing BD and HD DVD by using light diffraction means of diffraction type, the reliability of semiconductor laser used as light source is enhanced with respect to diffraction efficiency.
摘要翻译：本发明提供了一种用于调节光源的出射光量的光学拾取器的光学结构，从而不会对适合于光量的半导体激光器的可靠性产生不利影响。考虑到在记录或再现中使用的光盘的反射率的差异来调节光源的出射光量。利用这种配置，当通过使用衍射型的光衍射装置来组合用于记录或再现BD和HD DVD的兼容光学拾取器时，相对于衍射效率增强了用作光源的半导体激光器的可靠性。

6. 发明授权

US08004952B2 Optical pickup, optical information device, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server 有权
标题翻译：光学拾音器，光学信息装置，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：US08004952B2
公开(公告)日：2011-08-23
申请号：US12678312
申请日：2009-07-07
申请人： Toshiyasu Tanaka , Yoshiaki Komma , Kanji Wakabayashi , Fumitomo Yamasaki , Osamu Kajino
发明人： Toshiyasu Tanaka , Yoshiaki Komma , Kanji Wakabayashi , Fumitomo Yamasaki , Osamu Kajino
IPC分类号： G11B7/00
CPC分类号： G11B7/0933 , G11B7/22
摘要： To provide an optical pickup and an optical information device, capable of obtaining excellent signal characteristics for an optical disk on and/or from which recording and/or reproducing are performed using a laser. The optical pickup includes an optical detector, a support holder for holding the optical detector, and an optical base for fixing the support holder. The support holder has at least two notches at its both ends, the optical base has convex portions corresponding to the notches of the support holder, the optical base and the support holder are fixed by photo-curable adhesives for bonding the convex portions and the support holder to each other, and the shortest distance between the side faces of the convex portions, which do not face each other, is equal to or less than the width of the support holder in the direction of right and left ends.
摘要翻译：为了提供一种光学拾取器和光学信息装置，能够使用激光器在其上和/或从其执行记录和/或再现的光盘获得优异的信号特性。光学拾取器包括光学检测器，用于保持光学检测器的支撑保持器和用于固定支撑保持器的光学基座。支撑架在其两端具有至少两个凹口，光学基座具有对应于支撑架的凹口的凸起部分，光学基座和支撑架由光固化粘合剂固定，用于将凸部和支撑件彼此不相对的凸部的侧面之间的最短距离等于或小于支撑架在左右两端的方向上的宽度。

7. 发明授权

US07974167B2 Optical disc apparatus, optical information equipment with the optical disc apparatus, and focusing control LSI in the optical disc apparatus 有权
标题翻译：光盘装置，具有光盘装置的光信息设备和聚焦控制LSI在光盘装置中
公开(公告)号：US07974167B2
公开(公告)日：2011-07-05
申请号：US11960973
申请日：2007-12-20
申请人： Kanji Wakabayashi , Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka
发明人： Kanji Wakabayashi , Yoshiaki Komma , Fumitomo Yamasaki , Toshiyasu Tanaka
IPC分类号： G11B7/002
CPC分类号： G11B7/08511 , G11B7/0956 , G11B2007/0006
摘要： In the present invention, at the time of pulling a focus on an information recording surface of a disc, a focus servo is first pulled in a disc surface of the disc, and with the servo in a settled state, a driving signal necessary for following surface wobble is stored, and a focus is pulled in the information recording surface of the disc based upon a signal superimposed with the driving signal and a focus search driving signal.
摘要翻译：在本发明中，在对光盘的信息记录面进行聚焦的时刻，首先在光盘的盘面上拉动聚焦伺服，并且在伺服处于稳定状态时，将跟随所需的驱动信号存储表面摆动，并且基于与驱动信号叠加的信号和焦点搜索驱动信号，将焦点拉到盘的信息记录表面中。

8. 发明申请

US20100177621A1 OPTICAL PICKUP DEVICE AND COLLIMATE LENS 有权
标题翻译：光学拾取装置和胶合镜
公开(公告)号：US20100177621A1
公开(公告)日：2010-07-15
申请号：US12667877
申请日：2008-10-10
申请人： Kanji Wakabayashi , Fumitomo Yamasaki , Yoshiaki Komma , Hironori Tomita
发明人： Kanji Wakabayashi , Fumitomo Yamasaki , Yoshiaki Komma , Hironori Tomita
IPC分类号： G11B7/00
CPC分类号： G11B7/0956 , G11B7/13927 , G11B2007/0006
摘要： It is an object of the present invention to provide an optical pickup device being capable of correcting coma aberration induced in a light-condensing optical system including an objective lens for an optical disc and having a reduced size and a reduced thickness in comparison with the conventional art. The present invention includes a first coma-aberration correction actuator (6) including a first tilt drive portion for inclining an objective lens in a first tilt direction, and a second coma-aberration correction actuator (7) including a second tilt drive portion for inclining, in a second tilt direction, a coma-aberration correction lens placed between a light source and a raising mirror for reflecting emitted light toward the objective lens.
摘要翻译：本发明的目的是提供一种光学拾取装置，其能够校正在具有光盘的物镜的聚光光学系统中引起的彗形像差，并且与常规的相比具有减小的尺寸和减小的厚度艺术。本发明包括第一彗形像差校正致动器（6），其包括用于沿第一倾斜方向倾斜物镜的第一倾斜驱动部分和包括第二倾斜驱动部分的第二彗差校正致动器（7）在第二倾斜方向上，放置在光源和提升镜之间的彗差校正透镜，用于将发射的光反射到物镜。

9. 发明申请

US20080165420A1 AFOCAL LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS AND OPTICAL INFORMATION EQUIPMENT 失效
标题翻译： AFOCAL镜头，光学头，光盘设备和光信息设备
公开(公告)号：US20080165420A1
公开(公告)日：2008-07-10
申请号：US11966109
申请日：2007-12-28
申请人： Fumitomo YAMASAKI , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka , Katsuhiko Hayashi
发明人： Fumitomo YAMASAKI , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka , Katsuhiko Hayashi
IPC分类号： G02B27/30 , G02B27/42
CPC分类号： G02B5/1895 , G11B7/1353 , G11B2007/0006
摘要： [Problem] The present invention provides an afocal lens for an optical head that can ensure WD while satisfying NA, the optical head, an optical disc apparatus, a computer, an optical disc player, and an optical disc recorder.[Solution] Using a blue-violet laser beam source with wavelength of about 400 nm, and in an optical head compatible to optical discs having different protective substrate thickness, an afocal lens 105 that expands a diameter of light flux of light from a collimating lens and emits the light as substantially parallel light to an objective lens is provided between the collimating lens 104 and the objective lens 106. The configuration makes it possible to ensure WD while satisfying NA.
摘要翻译：本发明提供一种能够确保WD同时满足NA的光头的无焦距透镜，光头，光盘装置，计算机，光盘播放器和光盘记录器。 [解决方案]使用具有约400nm波长的蓝紫色激光束源，并且在与具有不同保护衬底厚度的光盘相兼容的光学头中，放置来自准直透镜的光束的直径的无焦透镜105 并且在准直透镜104和物镜106之间设置大致平行的光到物镜的光。该配置使得可以在满足NA的情况下确保WD。

10. 发明申请

US20080101199A1 OPTICAL HEAD AND OPTICAL DISC DEVICE 有权
标题翻译：光头和光盘设备
公开(公告)号：US20080101199A1
公开(公告)日：2008-05-01
申请号：US11924225
申请日：2007-10-25
申请人： Fumitomo YAMASAKI , Kousei Sano , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka
发明人： Fumitomo YAMASAKI , Kousei Sano , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/0903 , G11B7/0906 , G11B7/0909 , G11B7/131 , G11B7/1353 , G11B2007/0006
摘要： The present invention aims to provide an optical head and an optical disk device capable of suitably detecting tracking error signals for different types of optical discs.A polarizing hologram element includes a first area and a second area adjacent to the first area in an area where a beam reflected and diffracted by a BD passes. The first area includes a first transmission area for transmitting many 1st-order diffracted lights from the BD, a second transmission area adjacent to the first transmission area and closer to an optical axis than the first transmission area, and a third transmission area adjacent to the first and second transmission areas. The second area includes a fourth transmission area for transmitting many 1st-order diffracted lights from the BD, a fifth transmission area adjacent to the fourth transmission area and closer to the optical axis than the fourth transmission area, and a sixth transmission area adjacent to the fourth and fifth transmission areas.
摘要翻译：本发明的目的在于提供一种能够适当地检测不同类型的光盘的跟踪误差信号的光头和光盘装置。偏振全息元件包括在BD反射和衍射的光束通过的区域中与第一区域相邻的第一区域和第二区域。第一区域包括用于从BD传输许多1个次衍射光的第一透射区域，与第一透射区域相邻并且比第一透射区域更靠近光轴的第二透射区域，以及与第一和第二传输区域相邻的第三传输区域。第二区域包括用于从BD传输许多1个级衍射光的第四传输区域，与第四传输区域相邻并且比第四传输区域更靠近光轴的第五传输区域，以及与第四和第五传输区域相邻的第六传输区域。

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