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21. 发明授权

US07518976B2 Optical head with light sources of different wavelength 有权
标题翻译：光头具有不同波长的光源
公开(公告)号：US07518976B2
公开(公告)日：2009-04-14
申请号：US10543537
申请日：2004-01-27
申请人： Kousei Sano , Yoshiaki Komma , Toshiyasu Tanaka
发明人： Kousei Sano , Yoshiaki Komma , Toshiyasu Tanaka
IPC分类号： G11B7/13
CPC分类号： G11B7/1381 , G11B7/131 , G11B7/1353 , G11B2007/0006 , G11B2007/0013
摘要： The present invention is provided with a detection region for detecting light that is reflected from a first or a second information recording medium and that passes through an optical element. The first information recording medium and the second information recording media are multi-layer disks that have at least two layers, and the detection region includes a detection region (41) for detecting first order and above diffracted light that has a first wavelength, and a detection region (42) for detecting first order and above diffracted light that has a second wavelength. The detection region (41) is arranged such that it does not straddle across a region that is divided by a maximum range (38) of the dilation of zero order light coming from the first information recording medium that comes from a recording layer that differs from the recording layer that is to be recorded or reproduced, and the detection region (42) is arranged such that it does not straddle across a region that is divided by a maximum range (39) of the dilation of zero order light coming from the second information recording medium that comes from a recording layer that differs from the recording layer that is to be recorded or reproduced.
摘要翻译：本发明提供一种用于检测从第一或第二信息记录介质反射并通过光学元件的光的检测区域。第一信息记录介质和第二信息记录介质是具有至少两层的多层盘，检测区域包括用于检测具有第一波长的一级及以上衍射光的检测区域（41），以及检测区域（42），用于检测具有第二波长的一级及以上衍射光。检测区域（41）被布置成使得它不跨越从来自不同于第一信息记录介质的记录层的第一信息记录介质的零级光扩展的最大范围（38）的区域要记录或再现的记录层，并且检测区域（42）被布置成使得它不跨越从第二个光源的零级光的扩张的最大范围（39）除以的区域信息记录介质，其来自与要记录或再现的记录层不同的记录层。

22. 发明申请

US20060077550A1 Optical head and device and system provided with this 有权
标题翻译：光头及其配备的系统
公开(公告)号：US20060077550A1
公开(公告)日：2006-04-13
申请号：US10543537
申请日：2004-01-27
申请人： Kousei Sano , Yoshiaki Komma , Toshiyasu Tanaka
发明人： Kousei Sano , Yoshiaki Komma , Toshiyasu Tanaka
IPC分类号： G02B27/42 , G02B5/18
CPC分类号： G11B7/1381 , G11B7/131 , G11B7/1353 , G11B2007/0006 , G11B2007/0013
摘要： The present invention is provided with a detection region for detecting light that is reflected from a first or a second information recording medium and that passes through an optical element. The first information recording medium and the second information recording media are multi-layer disks that have at least two layers, and the detection region includes a detection region (41) for detecting first order and above diffracted light that has a first wavelength, and a detection region (42) for detecting first order and above diffracted light that has a second wavelength. The detection region (41) is arranged such that it does not straddle across a region that is divided by a maximum range (38) of the dilation of zero order light coming from the first information recording medium that comes from a recording layer that differs from the recording layer that is to be recorded or reproduced, and the detection region (42) is arranged such that it does not straddle across a region that is divided by a maximum range (39) of the dilation of zero order light coming from the second information recording medium that comes from a recording layer that differs from the recording layer that is to be recorded or reproduced.
摘要翻译：本发明提供一种用于检测从第一或第二信息记录介质反射并通过光学元件的光的检测区域。第一信息记录介质和第二信息记录介质是具有至少两层的多层盘，检测区域包括用于检测具有第一波长的一级及以上衍射光的检测区域（41），以及检测区域（42），用于检测具有第二波长的一级及以上衍射光。检测区域（41）被布置成使得它不跨越从来自不同于第一信息记录介质的记录层的第一信息记录介质的零级光扩展的最大范围（38）的区域要记录或再现的记录层，并且检测区域（42）被布置成使得它不跨越从第二个光源的零级光的扩张的最大范围（39）除以的区域信息记录介质，其来自与要记录或再现的记录层不同的记录层。

23. 发明申请

US20050237639A1 Beam shaping lens, lens part, mounting plate, optical head, optical information recording and reproducing apparatus, computer, image recording and reproducing apparatus, image reproducing apparatus, server and car navigation system 有权
标题翻译：光束成形透镜，透镜部件，安装板，光学头，光学信息记录和再现装置，计算机，图像记录和再现装置，图像再现装置，服务器和汽车导航系统
公开(公告)号：US20050237639A1
公开(公告)日：2005-10-27
申请号：US11114775
申请日：2005-04-26
申请人： Toshiyasu Tanaka , Yoshiaki Komma , Kousei Sano , Akihiro Arai
发明人： Toshiyasu Tanaka , Yoshiaki Komma , Kousei Sano , Akihiro Arai
IPC分类号： G02B3/00 , G02B3/06 , G02B5/04 , G02B7/02 , G11B7/135 , G11B7/22
CPC分类号： G11B7/1398 , G11B7/1378 , G11B7/13922 , G11B7/22 , G11B2007/13727
摘要： A beam shaping lens for shaping an incident beam having an elliptic cross section into an outgoing beam having a substantially circular cross section includes a first plane which is a cylindrical surface having a generating line curving to form a non-circular cylindrical surface as an incidence side of the incident beam and a second plane which is a circular cylindrical surface as an outgoing side of the outgoing beam. The distance between both ends of the generating line of the circular cylindrical surface is larger than the distance between both ends of the generating line of the non-circular cylindrical surface.
摘要翻译：用于将具有椭圆形截面的入射光束成形为具有基本圆形横截面的输出光束的光束整形透镜包括：第一平面，其是具有弯曲形成非圆形圆柱形表面的发生线弯曲的圆柱形表面，作为入射侧的入射光束和作为出射光束的出射侧的圆柱形表面的第二平面。圆筒形表面的生成线的两端之间的距离大于非圆柱形表面的生成线的两端之间的距离。

24. 发明授权

US08395980B2 Optical head device, optical information device, and information processing device 有权
标题翻译：光头设备，光信息设备和信息处理设备
公开(公告)号：US08395980B2
公开(公告)日：2013-03-12
申请号：US13391483
申请日：2010-07-30
申请人： Yoshiaki Komma , Joji Anzai , Yasumori Hino , Kousei Sano , Hideki Nakata , Keisuke Fujimoto , Takeharu Yamamoto , Takeshi Shimamoto
发明人： Yoshiaki Komma , Joji Anzai , Yasumori Hino , Kousei Sano , Hideki Nakata , Keisuke Fujimoto , Takeharu Yamamoto , Takeshi Shimamoto
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/1275 , G11B2007/0006 , G11B2007/0013
摘要： When information is recorded or reproduced on or from an optical information medium having three or more recording layers using blue light, interference by another layer light is reduced and, when information is reproduced from an optical information medium using red light, an S/N ratio is held excellently high.An optical head device includes a first laser light source (1) which emits blue light, a second laser light source (2) which emits red light, an objective lens (11) which focuses the blue light onto a recording layer of a first optical disc (12) or focuses the red light onto a recording layer of a second optical disc (13), a photodetector (9) which receives the blue light reflected by the recording layer of the first optical disc (12) or the red light reflected by the recording layer of the second optical disc (13) and outputs an electric signal in accordance with an amount of the received blue light or red light, and a wavelength selective light blocking region (7x) which blocks a predetermined range of the blue light including an optical axis thereof to prevent the predetermined range from reaching the photodetector (9), and transmits the red light.
摘要翻译：当使用蓝光在具有三个或更多个记录层的光信息介质上记录或再现信息时，减少了另一层光的干扰，并且当使用红光从光信息介质再现信息时，S / N比举办得非常高。光头装置包括发射蓝光的第一激光光源（1），发出红光的第二激光光源（2），将蓝光聚焦到第一光学记录层上的物镜（11）盘（12）或将红光聚焦到第二光盘（13）的记录层上，接收由第一光盘（12）的记录层反射的蓝光的光电检测器（9）或反射的红光通过第二光盘（13）的记录层，并根据所接收的蓝光或红光的量输出电信号，以及阻挡蓝光的预定范围的波长选择性遮光区域（7x）包括其光轴以防止预定范围到达光电检测器（9），并发送红光。

25. 发明授权

US08391120B2 Optical head, optical disc device and information processing device 有权
标题翻译：光头，光盘装置及信息处理装置
公开(公告)号：US08391120B2
公开(公告)日：2013-03-05
申请号：US12604758
申请日：2009-10-23
申请人： Fumitomo Yamasaki , Kousei Sano , Tomoaki Tojo , Katsuhiko Hayashi , Yoshiaki Komma
发明人： Fumitomo Yamasaki , Kousei Sano , Tomoaki Tojo , Katsuhiko Hayashi , Yoshiaki Komma
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/1374 , G11B7/13922 , G11B7/13925 , G11B2007/0006 , G11B2007/0013
摘要： An optical head, an optical disc device and an information processing device are capable of suppressing the amount of third-order astigmatism created upon recording or reproducing information on or from a multi-layer optical disc including at least three information recording surfaces. An objective lens satisfies a relationship of tc>(t0+tn)/2 assuming that t0 denotes the thickness of a light transmitting layer from the outer surface of the multi-layer optical disc to an information recording surface having the largest light transmitting layer thickness, tn denotes the thickness of a light transmitting layer from the outer surface of the multi-layer optical disc to an information recording surface having the smallest light transmitting layer thickness and tc denotes the thickness of a virtual light transmitting layer at which the absolute value of a third-order spherical aberration is minimum when blue-violet laser light is incident as parallel light on the objective lens.
摘要翻译：光头，光盘装置和信息处理装置能够抑制在包括至少三个信息记录表面的多层光盘上记录或再现信息时产生的三阶散光量。假设t0表示从多层光盘的外表面到具有最大透光层厚度的信息记录表面的透光层的厚度，物镜满足tc>（t0 + tn）/ 2的关系，tn表示从多层光盘的外表面到具有最小透光层厚度的信息记录表面的透光层的厚度，tc表示虚拟透光层的厚度，其中绝对值当蓝紫色激光作为平行光入射到物镜上时，三阶球面像差最小。

26. 发明授权

US08094543B2 Information recording medium, reproducing apparatus and reproducing method 有权
标题翻译：信息记录介质，再现装置和再现方法
公开(公告)号：US08094543B2
公开(公告)日：2012-01-10
申请号：US12634042
申请日：2009-12-09
申请人： Masahito Nakao , Yasumori Hino , Yoshiaki Komma , Fumitomo Yamasaki , Kousei Sano
发明人： Masahito Nakao , Yasumori Hino , Yoshiaki Komma , Fumitomo Yamasaki , Kousei Sano
IPC分类号： G11B7/00
CPC分类号： G11B7/1267 , G11B7/005 , G11B7/24038 , G11B7/26
摘要： An information recording medium according to the present invention includes at least three information recording layers. If the readout power of a laser beam in reading information from an information recording layer L(n) is identified by Pw(n), and if the readout power of the laser beam in reading information from an information recording layer L(n+a) is identified by Pw(n+a), then a base thickness between the information recording layers is determined so that the intensity of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n) becomes equal to or lower than that of the light when the information recording layer L(n+a) is irradiated with a laser beam having the readout power Pw(n+a).
摘要翻译：根据本发明的信息记录介质包括至少三个信息记录层。如果从信息记录层L（n）读取信息中的激光束的读出功率被Pw（n）识别，并且如果从信息记录层L（n + a）读取信息中的激光束的读出功率）由Pw（n + a）识别，则信息记录层之间的基底厚度被确定为当信息记录层L（n + a）被激光束照射时具有读出功率的光的强度当信息记录层L（n + a）被具有读出功率Pw（n + a）的激光束照射时，Pw（n）变得等于或低于光的光。

27. 再颁专利

USRE42825E1 Optical pickup head device, information recording/reproducing apparatus, and method for recording information 有权
标题翻译：光学拾取头装置，信息记录/再现装置和用于记录信息的方法
公开(公告)号：USRE42825E1
公开(公告)日：2011-10-11
申请号：US11805282
申请日：2007-05-22
申请人： Shin-Ichi Kadowaki , Yoshiaki Komma , Kousei Sano
发明人： Shin-Ichi Kadowaki , Yoshiaki Komma , Kousei Sano
IPC分类号： G11B7/00
CPC分类号： G11B7/094 , G11B7/0055 , G11B7/0903 , G11B2007/0013
摘要： An optical pickup head device includes a diffraction grating for generating zero-order diffracted light and at least first-order diffracted light and provides a tracking error signal with a DPP method. The diffraction grating includes grating patterns with a nonuniform period or phase. The size of the first-order diffracted light converged on an optical recording medium is larger in the direction parallel to a tangent to the track than in the direction perpendicular to the tangent. P1/P0>PW2/PW1 is established, where PW1 represents the power that is required to record information on the optical recording medium, PW2 represents the maximum power that allows information recorded on the optical recording medium to be reproduced without being erased, P0 represents the light amount of the zero-order diffracted light converged on the optical recording medium, and P1 represents the light amount of the at least first-order diffracted light converged on the optical recording medium. This configuration makes it possible to detect a tracking error signal with reduced offset, even if a recordable optical recording medium having two information recording planes is used.
摘要翻译：光拾取头装置包括用于产生零级衍射光和至少一级衍射光的衍射光栅，并提供具有DPP方法的跟踪误差信号。衍射光栅包括具有不均匀周期或相位的光栅图案。会聚在光学记录介质上的一级衍射光的尺寸在平行于轨道的切线的方向上大于在垂直于切线的方向上的尺寸。 P1 / P0> PW2 / PW1，其中PW1表示在光学记录介质上记录信息所需的功率，PW2表示允许记录在光学记录介质上的信息被再现而不被擦除的最大功率，P0表示零级衍射光的光量会聚在光学记录介质上，P1表示会聚在光学记录介质上的至少一级衍射光的光量。该配置使得即使使用具有两个信息记录平面的可记录光学记录介质，也可以检测具有减小的偏移的跟踪误差信号。

28. 发明申请

US20110170389A1 OPTICAL INFORMATION MEDIUM MEASUREMENT METHOD, OPTICAL INFORMATION METHOD, OPTICAL INFORMATION MEDIUM, RECORDING APPARATUS, AND REPRODUCING APPARATUS 有权
标题翻译：光学信息中度测量方法，光学信息方法，光学信息介质，记录装置和再现装置
公开(公告)号：US20110170389A1
公开(公告)日：2011-07-14
申请号：US13071914
申请日：2011-03-25
申请人： Kousei Sano , Yoshiaki Komma , Yasumori Hino
发明人： Kousei Sano , Yoshiaki Komma , Yasumori Hino
IPC分类号： G11B7/00
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。

29. 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。

30. 发明授权

US08320227B2 Objective lens unit, optical pickup, and optical information apparatus 有权
标题翻译：物镜单元，光学拾取器和光学信息设备
公开(公告)号：US08320227B2
公开(公告)日：2012-11-27
申请号：US13014031
申请日：2011-01-26
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： G11B7/135
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。

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