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1. 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。

2. 发明授权

US07742384B2 Optical head and optical disc device 有权
标题翻译：光头和光盘装置
公开(公告)号：US07742384B2
公开(公告)日：2010-06-22
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： G11B7/00
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发送许多1级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和与第一透射区域相邻的第三透射区域第一和第二传输区域。第二区域包括用于从BD传输许多1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，以及与第四传输区域相邻的第六传输区域第四和第五传输区域。

3. 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。

4. 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。

5. 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。

6. 发明申请

US20080151711A1 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：光盘设备，光学光盘设备的光学信息设备，以及在光盘设备中聚焦控制LSI
公开(公告)号：US20080151711A1
公开(公告)日：2008-06-26
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： G11B5/09
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 substrate 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，首先在光盘的基板表面中拉动聚焦伺服，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。

7. 发明申请

US20090034402A1 Optical Head Device, Optical Information Device, Optical Disc Player, Car Navigation System, Optical Disc Recorder, and Optical Disc Server 审中-公开
标题翻译：光头设备，光信息设备，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：US20090034402A1
公开(公告)日：2009-02-05
申请号：US12280699
申请日：2007-02-27
申请人： Kanji Wakabayashi , Yoshiaki Komma , Kousei Sano , Hidenori Wada , Keiichi Matsuzaki , Toshiyasu Tanaka
发明人： Kanji Wakabayashi , Yoshiaki Komma , Kousei Sano , Hidenori Wada , Keiichi Matsuzaki , Toshiyasu Tanaka
IPC分类号： G11B7/00
CPC分类号： G11B7/1362 , G11B7/08582 , G11B7/0933 , G11B7/0935 , G11B7/1365 , G11B7/1374 , G11B7/1392 , G11B2007/0006
摘要： In an optical head device including a light source for emitting a light of a predetermined wavelength; a collimator lens for converting a divergence degree of the light; a folding mirror for folding a direction of the light emitted from the light source; an objective lens for converging the light on a recording surface of an optical disc; a photodetector for receiving the light reflected at the recording surface of the optical disc, and converting to an electric signal; and an optical path adjustment unit for guiding the light emitted from the light source to the collimator lens and guiding the light reflected at the recording surface of the optical disc to the photodetector; a wavelength plate for polarizing the light reflected by the folding mirror is arranged on an actuator base between the folding mirror and the objective lens.
摘要翻译：一种光头装置，包括用于发射预定波长的光的光源; 用于转换光的发散度的准直透镜; 用于折叠从光源发射的光的方向的折叠镜; 用于将光会聚在光盘的记录表面上的物镜; 用于接收在光盘的记录表面处反射的光并转换成电信号的光电检测器; 以及光路调整单元，用于将从光源发射的光引导到准直透镜，并将在光盘的记录表面处反射的光引导到光电检测器; 用于使由折叠反射镜反射的光偏振的波长板布置在折叠反射镜和物镜之间的致动器基座上。

8. 发明授权

US08477584B2 Optical head, optical disc drive, computer, optical discplayer and optical disc recorder 有权
标题翻译：光头，光盘驱动器，计算机，光盘播放器和光盘录像机
公开(公告)号：US08477584B2
公开(公告)日：2013-07-02
申请号：US12015688
申请日：2008-01-17
申请人： Fumitomo Yamasaki , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka
发明人： Fumitomo Yamasaki , Yoshiaki Komma , Kanji Wakabayashi , Toshiyasu Tanaka
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/131 , G11B7/1381 , G11B2007/0006 , G11B2007/0013
摘要： When performing a read or write operation on an optical disc with information storage layers, this compatible optical head with a two-focus lens can reduce interference caused by an unnecessary diffracted light reflected from a non-target layer and not contributing to reading or writing. The head reads and/or writes information from/on storage media, including first and second media with different protective substrate thicknesses, by irradiating a given one with a laser beam and includes: a diffraction element that diffracts the beam to produce diffracted light of multiple orders; an objective lens for converging nth and mth order ones of the light on the respective storage layers of the first and second media; a photodetector that receives the beam reflected from the medium and condensed; and a light shielding portion for preventing a portion of the beam reflected from the storage layer of the second medium and including its optical axis from reaching the photodetector. The light shielding portion is arranged so as to reduce loss to be caused by cutting off the portion of the beam to a predetermined value or less.
摘要翻译：当在具有信息存储层的光盘上执行读取或写入操作时，具有双焦点透镜的兼容光学头可以减少由非目标层反射的不需要的衍射光引起的干扰，并且不会对读取或写入有贡献。头通过用激光束照射给定的一个来读取和/或从存储介质（包括具有不同保护衬底厚度的第一介质和第二介质）读取和/或写入信息，并且包括：衍射元件，衍射光束以产生多个衍射光命令; 用于在第一和第二介质的各个存储层上会聚第n个和第m个光的物镜; 光接收器，其接收从介质反射并聚焦的光束; 以及用于防止从第二介质的存储层反射并包括其光轴的光束的一部分到达光电检测器的遮光部分。遮光部被配置为减少将光束的一部分切断而造成的损失为规定值以下。

9. 发明授权

US08385169B2 Optical disc drive and optical information system 有权
标题翻译：光盘驱动器和光信息系统
公开(公告)号：US08385169B2
公开(公告)日：2013-02-26
申请号：US11965469
申请日：2007-12-27
申请人： Yoshiaki Komma , Kanji Wakabayashi , Fumitomo Yamasaki , Toshiyasu Tanaka
发明人： Yoshiaki Komma , Kanji Wakabayashi , Fumitomo Yamasaki , Toshiyasu Tanaka
IPC分类号： G11B7/00
CPC分类号： G11B7/13925 , G11B7/1362 , G11B7/1376 , G11B7/1381 , G11B19/12 , G11B2007/0006
摘要： An optical disc type is determined by detecting focus error signals and an amount of returned light, while (i) emitting light having a wavelength maximizing a focal length and (ii) moving an objective lens in a direction of an optical axis. If an S shape and AS immediately after a surface are greater than those at the surface, the optical disc is determined to have a largest capacity. It is also determined whether there is a reflective layer at a depth equal or less than 0.1 mm, if not, then it is determined whether there is a reflective layer at a depth of 0.6 mm. If there is a reflective layer at the depth of 0.6 mm, then the type of the reflective layer is determined based on TE/RF signals, using blue light. If the blue light is not adaptable, red light is emitted to replay at a depth of 0.6 mm.
摘要翻译：通过检测聚焦误差信号和返回光量来确定光盘类型，同时（i）发射具有最大化焦距的波长的光和（ii）沿光轴的方向移动物镜。如果在表面之后立即形成S形和AS大于表面处的S形状和AS，则确定光盘具有最大的容量。还确定在等于或小于0.1mm的深度处是否存在反射层，如果不是，则确定在0.6mm的深度是否存在反射层。如果在0.6mm的深度处存在反射层，则使用蓝色光，基于TE / RF信号确定反射层的类型。如果蓝光不适应，则会发出红光以0.6mm的深度重播。

10. 发明授权

US08130603B2 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，配备有光盘驱动系统的车辆，光盘驱动装置中的球面像差校正方法，程序和记录介质
公开(公告)号：US08130603B2
公开(公告)日：2012-03-06
申请号：US12356212
申请日：2009-01-20
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。

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