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1. 发明申请

US20130064057A1 OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK DEVICE, AND INFORMATION PROCESSING DEVICE 有权
标题翻译：目标镜头，光头，光盘装置和信息处理装置
公开(公告)号：US20130064057A1
公开(公告)日：2013-03-14
申请号：US13699134
申请日：2011-05-31
申请人： Fumitomo Yamasaki , Hiroshi Shiroiwa , Yoshiaki Komma , Junichi Asada , Osamu Kajino , Noriaki Terahara , Toshiyasu Tanaka
发明人： Fumitomo Yamasaki , Hiroshi Shiroiwa , Yoshiaki Komma , Junichi Asada , Osamu Kajino , Noriaki Terahara , Toshiyasu Tanaka
IPC分类号： G11B7/1374 , G02B5/18 , G02B1/11
CPC分类号： G11B7/1374 , G02B1/11 , G02B1/115 , G02B5/1814 , G02B27/0037 , G02B27/4294 , G11B7/1275 , G11B7/1353 , G11B7/1367 , G11B2007/0006
摘要： A disclosed objective lens includes: a lens having an entrance surface and an emission surface; and an anti-reflection coat formed on the emission surface, wherein a transmittance T1—0 [%] of the anti-reflection coat when an incident angle of a first laser beam having a first wavelength λ1 (390 nm≦λ1≦430 nm) is 0°, and the transmittance T1—40 [%] of the anti-reflection coat when the incident angle of the first laser beam is 40° satisfy 0.95≦T1—0/T1—40≦1.05, and a transmittance T2—0 [%] of the anti-reflection coat when an incident angle of a second laser beam having a second wavelength λ2 (630 nm≦λ2≦680 nm) is 0° and a transmittance T2—40 [%] of the anti-reflection coat when the incident angle of the second laser beam is 40° satisfy 0.85≦T2—0/T2—40≦0.97.
摘要翻译：所公开的物镜包括：具有入射表面和发射表面的透镜; 以及形成在发射表面上的防反射涂层，其中当具有第一波长λ1（390nm和nlE;λ1＆nlE; 430nm）的第一激光束的入射角时抗反射涂层的透射率T1-0 [％] 为0°，当第一激光束的入射角为40°时防反射涂层的透射率T1-40 [％]满足0.95＆nlE; T1-0 / T1-40＆nlE; 1.05，透射率T2- 当具有第二波长λ2（630nm＆nlE;λ2＆nlE; 680nm）的第二激光束的入射角为0°时的抗反射涂层的0 [％]和抗反射层的透射率T2-40 [％] 当第二激光束的入射角为40°时，涂层满足0.85＆nlE; T2-0 / T2-40＆nlE; 0.97。

2. 发明授权

US08797834B2 Objective lens, optical head, optical disk device, and information processing device 有权
标题翻译：物镜，光头，光盘装置及信息处理装置
公开(公告)号：US08797834B2
公开(公告)日：2014-08-05
申请号：US13699134
申请日：2011-05-31
申请人： Fumitomo Yamasaki , Hiroshi Shiroiwa , Yoshiaki Komma , Junichi Asada , Osamu Kajino , Noriaki Terahara , Toshiyasu Tanaka
发明人： Fumitomo Yamasaki , Hiroshi Shiroiwa , Yoshiaki Komma , Junichi Asada , Osamu Kajino , Noriaki Terahara , Toshiyasu Tanaka
IPC分类号： G11B7/135
CPC分类号： G11B7/1374 , G02B1/11 , G02B1/115 , G02B5/1814 , G02B27/0037 , G02B27/4294 , G11B7/1275 , G11B7/1353 , G11B7/1367 , G11B2007/0006
摘要： A disclosed objective lens includes: a lens having an entrance surface and an emission surface; and an anti-reflection coat formed on the emission surface, wherein a transmittance T1—0 [%] of the anti-reflection coat when an incident angle of a first laser beam having a first wavelength λ1 (390 nm≦λ1≦430 nm) is 0°, and the transmittance T1—40 [%] of the anti-reflection coat when the incident angle of the first laser beam is 40° satisfy 0.95≦T1—0/T1—40≦1.05, and a transmittance T2—0 [%] of the anti-reflection coat when an incident angle of a second laser beam having a second wavelength λ2 (630 nm≦λ2≦680 nm) is 0° and a transmittance T2—40 [%] of the anti-reflection coat when the incident angle of the second laser beam is 40° satisfy 0.85≦T2—0/T2—40≦0.97.
摘要翻译：所公开的物镜包括：具有入射表面和发射表面的透镜; 以及形成在发射表面上的防反射涂层，其中当具有第一波长λ1（390nm和nlE;λ1＆nlE; 430nm）的第一激光束的入射角时抗反射涂层的透射率T1-0 [％] 为0°，当第一激光束的入射角为40°时防反射涂层的透射率T1-40 [％]满足0.95＆nlE; T1-0 / T1-40＆nlE; 1.05，透射率T2- 当具有第二波长λ2（630nm＆nlE;λ2＆nlE; 680nm）的第二激光束的入射角为0°时的抗反射涂层的0 [％]和抗反射层的透射率T2-40 [％] 当第二激光束的入射角为40°时，涂层满足0.85＆nlE; T2-0 / T2-40＆nlE; 0.97。

3. 发明申请

US20120182852A1 OBJECTIVE LENS, OPTICAL HEAD, OPTICAL DISK APPARATUS, AND INFORMATION PROCESSING APPARATUS 有权
标题翻译：目标镜头，光学头，光盘设备和信息处理设备
公开(公告)号：US20120182852A1
公开(公告)日：2012-07-19
申请号：US13498270
申请日：2011-07-22
申请人： Fumitomo Yamasaki , Kazuhiro Minami , Yoshiaki Komma , Junichi Asada , Osamu Kajino , Noriaki Terahara , Toshiyasu Tanaka
发明人： Fumitomo Yamasaki , Kazuhiro Minami , Yoshiaki Komma , Junichi Asada , Osamu Kajino , Noriaki Terahara , Toshiyasu Tanaka
IPC分类号： G11B7/1353
CPC分类号： G11B7/1374 , G02B5/1895 , G11B7/1353 , G11B7/1367 , G11B7/13922 , G11B2007/0006
摘要： An objective lens, an optical head, an optical disk apparatus and an information processing apparatus which can suppress deterioration of a focal spot caused by a drop in the diffraction efficiency are provided. An inner circumference area (111) and an outer circumference area (113) converge a laser beam having an order of diffraction with which diffraction efficiency is highest, out of laser beams having a wavelength λ1 which are diffracted by the inner circumference area (111) and the outer circumference area (113), on an information recording surface of a first information recording medium; the inner circumference area (111) and a mid-circumference area (112) converge a laser beam having an order of diffraction with which diffraction efficiency is highest, out of the laser beams having a wavelength λ2 which are diffracted by the inner circumference area (111) and the mid-circumference area (112), on an information recording surface of a second information recording medium; and the diffraction efficiency of the laser beam having the wavelength λ2, which is diffracted by the mid-circumference area (112) and converges on the information recording surface of the second information recording medium, is greater than the diffraction efficiency of the laser beam having the wavelength λ1 which is diffracted by the mid-circumference area (112), and converges on the information recording surface of the first information recording medium.
摘要翻译：提供了可以抑制由衍射效率下降引起的焦点劣化的物镜，光头，光盘装置和信息处理装置。在由内周区域（111）衍射的具有波长λ1的激光束中，内圆周区域（111）和外周区域（113）会聚具有衍射效率最高的衍射级数的激光束，和外周区域（113），位于第一信息记录介质的信息记录表面上; 在由内周区域衍射的具有波长λ2的激光束中，内圆周区域（111）和中周区域（112）会聚具有衍射效率最高的衍射级数的激光束（ 111）和中周区域（112），位于第二信息记录介质的信息记录表面上; 并且由中间圆周区域（112）衍射并会聚在第二信息记录介质的信息记录表面上的具有波长λ2的激光束的衍射效率大于具有由中圆区域（112）衍射的波长λ1，并且会聚在第一信息记录介质的信息记录表面上。

4. 发明授权

US08432782B2 Objective lens, optical head, optical disk apparatus, and information processing apparatus 有权
标题翻译：物镜，光头，光盘装置和信息处理装置
公开(公告)号：US08432782B2
公开(公告)日：2013-04-30
申请号：US13498270
申请日：2011-07-22
申请人： Fumitomo Yamasaki , Kazuhiro Minami , Yoshiaki Komma , Junichi Asada , Osamu Kajino , Noriaki Terahara , Toshiyasu Tanaka
发明人： Fumitomo Yamasaki , Kazuhiro Minami , Yoshiaki Komma , Junichi Asada , Osamu Kajino , Noriaki Terahara , Toshiyasu Tanaka
IPC分类号： G11B7/135 , G02B13/00
CPC分类号： G11B7/1374 , G02B5/1895 , G11B7/1353 , G11B7/1367 , G11B7/13922 , G11B2007/0006
摘要： An objective lens, an optical head, an optical disk apparatus and an information processing apparatus which can suppress deterioration of a focal spot caused by a drop in the diffraction efficiency. Inner and outer circumference areas converge a laser beam, out of laser beams having a wavelength λ1 which are diffracted by the inner and outer circumference areas, on a first information recording medium; the inner circumference area and a mid-circumference area converge a laser beam, out of the laser beams having a wavelength λ2 which are diffracted by the inner circumference area and the mid-circumference area, on a second information recording medium; and the diffraction efficiency of the laser beam having the wavelength λ2 is greater than the diffraction efficiency of the laser beam having the wavelength λ1.
摘要翻译：可以抑制由衍射效率下降引起的焦点劣化的物镜，光头，光盘装置和信息处理装置。内外圆周区域在第一信息记录介质上会聚具有由内周区域和外周区域衍射的波长λ1的激光束的激光束; 在第二信息记录介质上，将由内周区域和中周区域衍射的具有波长λ2的激光束中的内圆周区域和中间圆周区域会聚在一起; 并且具有波长λ2的激光束的衍射效率大于具有波长λ1的激光束的衍射效率。

5. 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。

6. 发明授权

US08238218B2 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：US08238218B2
公开(公告)日：2012-08-07
申请号：US13181574
申请日：2011-07-13
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. 发明申请

US20100208564A1 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：光学拾取，光学信息设备，计算机，光盘播放器，车载导航系统，光盘记录器和光盘服务器
公开(公告)号：US20100208564A1
公开(公告)日：2010-08-19
申请号：US12678312
申请日：2008-09-18
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。

8. 发明授权

US08473972B2 Optical pickup and drive apparatus 有权
标题翻译：光学拾取和驱动装置
公开(公告)号：US08473972B2
公开(公告)日：2013-06-25
申请号：US13418672
申请日：2012-03-13
申请人： Noriaki Terahara , Shinsuke Hatanaka , Toshiyasu Tanaka , Takeshi Ohta , Fumitomo Yamasaki
发明人： Noriaki Terahara , Shinsuke Hatanaka , Toshiyasu Tanaka , Takeshi Ohta , Fumitomo Yamasaki
IPC分类号： G11B7/12
CPC分类号： G11B7/121
摘要： An optical pickup includes a lens holder; an objective lens provided on the lens holder and having an effective region for collecting light from a light source and an edge located outer to the effective region; and a lens protector provided on the lens holder. The lens protector protrudes toward an optical disc more than the objective lens. The edge of the objective lens includes a convexed portion protruding toward the optical disc. An apex of the effective region of the objective lens protrudes toward the optical disc more than the convexed portion of the edge. A straight line connecting a part of the edge of the objective lens and a part of the lens protector is closer to the optical disc than the apex of the effective region of the objective lens.
摘要翻译：光学拾取器包括透镜保持器; 设置在所述透镜架上并具有用于收集来自光源的光的有效区域和位于所述有效区域外部的边缘的物镜; 以及设置在透镜架上的透镜保护器。镜头保护器比物镜更向外突出。物镜的边缘包括向光盘突出的凸出部分。物镜的有效区域的顶点比边缘的凸起部分向光盘突出。连接物镜的边缘的一部分和透镜保护器的一部分的直线比物镜的有效区域的顶点更靠近光盘。

9. 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。

10. 发明授权

US08441907B2 Complex objective lens including saw-tooth diffractive element for using on blue, red and infrared lights 有权
$Complex objective lens including saw-tooth diffractive element for using on blue, red and infrared lights$
标题翻译：复数物镜包括用于蓝色，红色和红外光的锯齿衍射元件
公开(公告)号：US08441907B2
公开(公告)日：2013-05-14
申请号：US13558465
申请日：2012-07-26
申请人： Yoshiaki Komma , Toshiyasu Tanaka , Fumitomo Yamasaki
发明人： Yoshiaki Komma , Toshiyasu Tanaka , Fumitomo Yamasaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： In an optical head device which performs recording/reading of data in/from a high-density optical disc using an objective lens with a large NA, a saw-tooth shape diffraction element is used for also performing recording/reading of data in/from a conventional optical disc, such as DVD, CD, or the like. A step difference that produces an optical path length for blue light which is equal to or longer than the wavelength of the blue light and optical path lengths for red and infrared light which are shorter than the wavelengths of the red and infrared light is utilized so as to exert an inverse action on the blue light to those exerted on the red and infrared light. The effect of increasing the working distances for CD and DVD enables multiple compatibility. The optical element is integrally combined with the objective lens to perform a tracking servo following operation.
摘要翻译：在使用具有大NA的物镜的高密度光盘中进行数据的记录/读取的光学头装置中，使用锯齿形衍射元件也进行数据的记录/读取常规的光盘，例如DVD，CD等。使用等于或长于蓝光的波长的蓝色光的路径长度和比红色和红外光的波长短的红色和红色光的光路长度的阶差，被利用为对蓝色光施加与红色和红色光上的那些相反的作用。增加CD和DVD的工作距离的效果可以实现多种兼容性。光学元件与物镜整体地组合以执行跟踪伺服跟随操作。

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