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1. 发明申请

US20050276202A1 Optical head, optical information apparatus, and optical-information reproducing method 有权
标题翻译：光头，光信息装置和光信息再现方法
公开(公告)号：US20050276202A1
公开(公告)日：2005-12-15
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： G11B7/13 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1353
摘要： An optical head is provided 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. This optical head 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在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。该光头包括：发射光束的半导体激光器; 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。

2. 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。

3. 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。

4. 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。

5. 发明授权

US08228774B2 Optical information medium measurement method, optical information medium, recording apparatus and reproducing apparatus 有权
标题翻译：光信息介质测量方法，光信息介质，记录装置和再现装置
公开(公告)号：US08228774B2
公开(公告)日：2012-07-24
申请号：US12559740
申请日：2009-09-15
申请人： Kousei Sano , Yoshiaki Komma , Yasumori Hino
发明人： Kousei Sano , Yoshiaki Komma , Yasumori Hino
IPC分类号： G11B7/242 , G11B3/70 , G11B7/24 , G11B7/00 , B32B3/02 , G01B11/28 , G01N21/55
CPC分类号： G11B7/0037 , G01B11/06 , G11B2007/0013
摘要： An optical information medium measurement method measures a degree of modulation in an optical information medium of a multilayered structure having a plurality of information layers. The method includes measuring the modulation degree of each layer of the optical information medium, obtaining a thickness between layers of the optical information medium, obtaining a reflectance of each layer of the optical information medium, and converting the modulation degree of each layer. The modulation degree is measured based on a value indicative of the thickness between layers, and a value indicative of the reflectance of each layer.
摘要翻译：光信息介质测量方法测量具有多个信息层的多层结构的光信息介质中的调制度。该方法包括测量光信息介质的各层的调制度，获得光信息介质的层之间的厚度，获得光信息介质的各层的反射率，以及转换各层的调制度。基于表示层之间的厚度的值和表示各层的反射率的值来测量调制度。

6. 发明授权

US08068403B2 Optical head 有权
标题翻译：光头
公开(公告)号：US08068403B2
公开(公告)日：2011-11-29
申请号：US12090144
申请日：2006-10-13
申请人： Takayuki Nagata , Joji Anzai , Hideki Aikoh , Eishin Mori , Kousei Sano , Yoshiaki Komma , Akihiro Arai
发明人： Takayuki Nagata , Joji Anzai , Hideki Aikoh , Eishin Mori , Kousei Sano , Yoshiaki Komma , Akihiro Arai
IPC分类号： G11B7/00
CPC分类号： G11B7/133 , G11B7/0908 , G11B7/1381 , G11B2007/0013
摘要： To provide an optical head to produce good servo and read signals by reducing the influence of interference by light reflected from a non-read layer of a multilayer optical disc.The head includes: a first optical system for converging light from a light source on a first or second storage layer; a second optical system for receiving and transmitting light reflected from the first layer and stray light reflected from the second layer when the light is converged on the first layer; a photodetector; and a calculator. The photosensitive areas of the photodetector output signals representing intensities of the light incident there through the second system. The reflected and stray light incident on the second system interfere with each other, and the first and second groups of areas are arranged so as to be equally affected by a variation in intensity caused by the interference. The calculator calculates the difference between sum of a first group of signals supplied from a first group of areas and that of a second group of signals supplied from a second group of areas, thereby generating a focus error signal.
摘要翻译：通过减少由多层光盘的非读取层反射的光的干扰的影响来提供光学头来产生良好的伺服和读取信号。头部包括：第一光学系统，用于将来自光源的光聚焦在第一或第二存储层上; 第二光学系统，用于当所述光会聚在所述第一层上时，接收和发射从所述第一层反射的光和从所述第二层反射的杂散光; 光检测器; 和一个计算器。光电检测器的光敏区域输出表示通过第二系统入射到那里的光的强度的信号。入射在第二系统上的反射和杂散光彼此干涉，并且第一和第二组区域被布置成等同地受到由干涉引起的强度变化的影响。计算器计算从第一组区域提供的第一组信号和从第二组区域提供的第二组信号的第一组信号的和之间的差，从而产生聚焦误差信号。

7. 发明授权

US07944798B2 Objective lens unit, optical pickup, and optical information device having ultraviolet-transmissive lens holder 有权
标题翻译：物镜单元，光拾取器，以及具有紫外线透镜座的光信息装置
公开(公告)号：US07944798B2
公开(公告)日：2011-05-17
申请号：US12064360
申请日：2006-08-24
申请人： Yoshiaki Komma , Kanji Wakabayashi , Kousei Sano , Toshiyasu Tanaka , Keiichi Matsuzaki , Hidenori Wada
发明人： Yoshiaki Komma , Kanji Wakabayashi , Kousei Sano , Toshiyasu Tanaka , Keiichi Matsuzaki , Hidenori Wada
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B2007/0006
摘要： An objective lens unit according to the present invention includes a first objective lens 41; and a first lens holder 2 for supporting the first objective lens 41. The first lens holder 2 is formed of a material which transmits ultraviolet. Preferably, the first lens holder 2 includes a through-hole, having first and second openings 2a and 2b, through which light incident on the first objective lens 41 passes, and an opening limiting section 3 provided along a circumferential direction of the through-hole and projecting toward a central axis of the through-hole. The first objective lens 41 is supported so as to block the first opening 2b. The opening limiting section 3 guides light incident thereon from the second opening 2a in a direction away from an optical axis of the first objective lens.
摘要翻译：根据本发明的物镜单元包括第一物镜41; 以及用于支撑第一物镜41的第一透镜保持器2.第一透镜保持器2由透射紫外线的材料形成。优选地，第一透镜保持件2包括通孔，具有入射在第一物镜41上的光通过的第一和第二开口2a和2b以及沿着通孔的周向设置的开口限制部3 并朝向通孔的中心轴突出。第一物镜41被支撑以阻挡第一开口2b。开口限制部3在远离第一物镜的光轴的方向上引导从第二开口2a入射的光。

8. 发明申请

US20100165823A1 OPTICAL PICKUP DEVICE AND INFORMATION PROCESSOR 失效
标题翻译：光学拾取器件和信息处理器
公开(公告)号：US20100165823A1
公开(公告)日：2010-07-01
申请号：US12280037
申请日：2007-02-15
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： G11B7/1381 , G11B7/126 , G11B7/1369
摘要： In an optical beam transmissive adjusting mechanism (110) included in an optical pickup device, arrangement positions of a first transmissive element (111) having a first transmittance and a second transmissive element (112) having a second transmittance higher than the first transmittance are switched by a rotational drive unit (105), and an optical beam having a first optical power and an optical beam having a second optical power are output selectively. Furthermore, since a transmissive element of a non-transmissive side for an optical beam is arranged at an angle inclined to an optical axis of the optical beam, the transmissive element does not obstruct a path of the optical beam to be diffused.
摘要翻译：在包括在光学拾取装置中的光束透射调节机构（110）中，切换具有第一透射率的第一透射元件（111）和具有比第一透射率高的第二透射率的第二透射元件（112）的布置位置通过旋转驱动单元（105），并且选择性地输出具有第一光功率的光束和具有第二光功率的光束。此外，由于用于光束的非透射侧的透射元件以与光束的光轴倾斜的角度布置，所以透射元件不会妨碍光束的漫射路径。

9. 发明申请

US20100128590A1 Optical information medium measurement method, optical information medium, recording apparatus, and reproducing apparatus 有权
标题翻译：光信息介质测量方法，光信息介质，记录装置和再现装置
公开(公告)号：US20100128590A1
公开(公告)日：2010-05-27
申请号：US12559766
申请日：2009-09-15
申请人： Kousei SANO , Yoshiaki Komma , Yasumori Hino
发明人： Kousei SANO , Yoshiaki Komma , Yasumori Hino
IPC分类号： G11B7/00 , B32B3/02 , G01B11/06 , G01N21/55
CPC分类号： G11B7/268 , G11B7/00375 , G11B2007/0013
摘要： An optical information medium measurement method of the present invention, for measuring a degree of modulation in an optical information medium of a multilayered structure having a plurality of information layers, includes a first step of measuring the modulation degree of each layer of the optical information medium, by use of a measurement optical system, a second step of obtaining a thickness between layers of the optical information medium, a third step of obtaining a reflectance of each layer of the optical information medium, and a fourth step of converting the modulation degree of each layer, the modulation degree being measured in the first step, into a modulation degree at a reference optical system differing from the measurement optical system, based on a value indicative of the thickness between layers, the thickness being obtained in the second step, and a value indicative of the reflectance of each layer, the reflectance being obtained in the third step.
摘要翻译：本发明的光信息介质测量方法，用于测量具有多个信息层的多层结构的光信息介质中的调制度，包括测量光信息介质的每一层的调制度的第一步骤通过使用测量光学系统，获得光学信息介质的层之间的厚度的第二步骤，获得光学信息介质的每一层的反射率的第三步骤和转换光信息介质的调制度的第四步骤基于表示层之间的厚度的值，在第二步骤中获得的厚度和在第一步骤中获得的厚度，将在第一步骤中测量的调制度调整为与测量光学系统不同的参考光学系统的调制度，以及表示每层的反射率的值，第三步骤中得到的反射率。

10. 发明申请

US20090257340A1 OPTICAL HEAD 有权
标题翻译：光学头
公开(公告)号：US20090257340A1
公开(公告)日：2009-10-15
申请号：US12090144
申请日：2006-10-13
申请人： Takayuki Nagata , Joji Anzai , Hideki Aikoh , Eishin Mori , Kousei Sano , Yoshiaki Komma , Akihiro Arai
发明人： Takayuki Nagata , Joji Anzai , Hideki Aikoh , Eishin Mori , Kousei Sano , Yoshiaki Komma , Akihiro Arai
IPC分类号： G11B7/00
CPC分类号： G11B7/133 , G11B7/0908 , G11B7/1381 , G11B2007/0013
摘要： To provide an optical head to produce good servo and read signals by reducing the influence of interference by light reflected from a non-read layer of a multilayer optical disc.The head includes: a first optical system for converging light from a light source on a first or second storage layer; a second optical system for receiving and transmitting light reflected from the first layer and stray light reflected from the second layer when the light is converged on the first layer; a photodetector; and a calculator. The photosensitive areas of the photodetector output signals representing intensities of the light incident there through the second system. The reflected and stray light incident on the second system interfere with each other, and the first and second groups of areas are arranged so as to be equally affected by a variation in intensity caused by the interference. The calculator calculates the difference between sum of a first group of signals supplied from a first group of areas and that of a second group of signals supplied from a second group of areas, thereby generating a focus error signal.
摘要翻译：通过减少由多层光盘的非读取层反射的光的干扰的影响来提供光学头来产生良好的伺服和读取信号。头部包括：第一光学系统，用于将来自光源的光聚焦在第一或第二存储层上; 第二光学系统，用于当所述光会聚在所述第一层上时，接收和发射从所述第一层反射的光和从所述第二层反射的杂散光; 光检测器; 和一个计算器。光电检测器的光敏区域输出表示通过第二系统入射到那里的光的强度的信号。入射在第二系统上的反射和杂散光彼此干涉，并且第一和第二组区域被布置成等同地受到由干涉引起的强度变化的影响。计算器计算从第一组区域提供的第一组信号和从第二组区域提供的第二组信号的第一组信号的和之间的差，从而产生聚焦误差信号。

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