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1. 发明申请

US20140254345A1 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：US20140254345A1
公开(公告)日：2014-09-11
申请号：US14352188
申请日：2012-10-17
申请人： Panasonic Corporation
发明人： Fumitomo Yamasaki , Kazuhiro Minami , Yoshiaki Komma
IPC分类号： G11B7/1374
CPC分类号： G11B7/1374 , G02B5/1895 , G11B7/1353 , G11B7/1376 , G11B7/13922 , G11B7/13925 , G11B2007/0006
摘要： Assuming that third-order coma aberration per unit angle generated by tilt of BD (60) in recording or reproducing information on or from BD (60) is CMDbd, third-order coma aberration per unit angle generated by tilt of CD (80) in recording or reproducing information on or from CD (80) is CMDcd, third-order coma aberration per unit angle generated by tilt of a compatible objective lens (8) in recording or reproducing information on or from BD (60) is CMLbd, and third-order coma aberration per unit angle generated by tilt of the compatible objective lens (8) in recording or reproducing information on or from CD (80) is CMLcd, a sine condition deviation amount (SCbd) in recording or reproducing information on or from BD (60) is expressed by CMDbd+CMLbd, a sine condition deviation amount (SCcd) in recording or reproducing information on or from CD (80) is expressed by CMDcd+CMLcd, and the sine condition deviation amount (SCbd) and the sine condition deviation amount (SCcd) satisfy SCbd>0 and SCcd
摘要翻译：假设BD（60）在BD（60）上记录或再现信息时由BD（60）的倾斜产生的每单位角度的三阶彗差为CMDbd，则通过CD（80）的倾斜产生的每单位角度的三阶彗形像差在CD（80）上或从CD（80）上记录或再现信息是CMDcd，在BD（60）上记录或再现信息时兼容物镜（8）的倾斜产生的每单位角度的三阶彗形像差是CMLbd，第三在CD（80）上或从CD（80）记录或再现信息时兼容物镜（8）的倾斜产生的每单位角度的单位角度的彗差为CMLcd，在BD上记录或再现BD信息的正弦条件偏差量（SCbd）（60）由CMDbd + CMLbd表示，在CD（80）上或从CD（80）记录或再现信息的正弦条件偏差量（SCcd）由CMDcd + CMLcd表示，正弦条件偏差量（SCbd）和正弦条件偏差量（SCcd）满足SCbd> 0a nd SCcd <0。

2. 发明授权

US08767518B2 Objective lens element and optical pickup device 有权
标题翻译：物镜和光学拾取装置
公开(公告)号：US08767518B2
公开(公告)日：2014-07-01
申请号：US13248038
申请日：2011-09-29
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Fumitomo Yamasaki
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Fumitomo Yamasaki
IPC分类号： G11B7/12
CPC分类号： G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An objective lens element that can suppress occurrence of an aberration is disclosed. Sawtooth-like diffraction structures having different height and cycles (pitches) are provided on an inner part R21 and an outer part R22, respectively. A curved surface M211 extending at an intermediate level of recesses and projections of the sawtooth-like diffraction structure provided on the inner part R21, and a curved surface M212 extending at an intermediate level of recesses and projections of the sawtooth-like diffraction structure provided on the outer part R22 are smoothly connected to each other. Even when wavelength of the light source and/or the environmental temperature change, a phase shift does not occur between the inner part R21 and the outer part R22, and a decrease in diffraction efficiency and occurrence of an aberration can be suppressed.
摘要翻译：公开了能够抑制像差的发生的物镜元件。分别具有不同高度和周期（间距）的锯齿状衍射结构分别设置在内部部分R21和外部部分R22上。在内部部件R21上设置的锯齿状衍射结构的凹部和突起的中间水平面延伸的曲面M211，以及设置在上述锯齿状衍射结构的中间水平的锯齿状衍射结构的中间水平面的弯曲面M212 外部部件R22彼此平滑地连接。即使在光源的波长和/或环境温度发生变化的情况下，内部部件R21和外部部件R22之间也不会发生相位偏移，并且可以抑制衍射效率的降低和像差的发生。

3. 发明授权

US08699312B2 Optical information recording/reproducing apparatus and objective optical system for the same 失效
标题翻译：光信息记录/再现装置和物镜光学系统相同
公开(公告)号：US08699312B2
公开(公告)日：2014-04-15
申请号：US13954074
申请日：2013-07-30
申请人： Hoya Corporation
发明人： Daisuke Koreeda , Shuichi Takeuchi
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G02B5/1895 , G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An objective optical system for information recording/reproducing, at least one of optical surfaces of the objective optical system comprising a diffraction surface including a first region contributing to converging first, second and third beams and including a diffraction structure formed such that use diffraction orders for the first, second and third beams are 1st-orders and a condition 0.03
摘要翻译：一种用于信息记录/再现的物镜光学系统，所述物镜光学系统的光学表面中的至少一个包括衍射表面，所述衍射表面包括有助于会聚第一，第二和第三光束的第一区域，并且包括衍射结构，第一，第二和第三光束为1阶，满足条件0.03 <（λB11-λ1）/λ1<0.40; 第二区域有助于仅会聚第一和第二光束，并且包括形成为使得衍射级数为1级并且条件为-0.35 <（λB12-λB11）/λ1<0.35的衍射结构; 以及第三区域，仅有助于仅会聚第一光束，并且包括衍射结构，所述衍射结构形成为使得第一光束的使用衍射级为奇数阶，并且条件为：-0.23

4. 发明授权

US08599671B2 Objective lens, optical pickup apparatus, and optical information recording reproducing apparatus 有权
标题翻译：物镜，光学拾取装置和光学信息记录再现装置
公开(公告)号：US08599671B2
公开(公告)日：2013-12-03
申请号：US13468510
申请日：2012-05-10
申请人： Kentarou Nakamura
发明人： Kentarou Nakamura
IPC分类号： G11B7/00
CPC分类号： G11B7/13922 , G11B7/1353 , G11B7/1374 , G11B7/1376 , G11B7/13925 , G11B2007/0006
摘要： An objective lens a first optical path difference providing structure in which a first basic structure and a second basic structure are overlapped with each other. The first basic structure is a blaze-type structure which emits a Xth-order diffracted light flux, when the first light flux passes through the first basic structure, where the value of X is an odd integer. At least a part of the first basic structure arranged around an optical axis includes a step facing an opposite direction to the optical axis. The second basic structure is a blaze-type structure which emits a Lth-order diffracted light flux, when the first light flux passes through the second basic structure, where the value of L is an even integer. At least a part of the second basic structure arranged around the optical axis includes a step facing the optical axis.
摘要翻译：一种物镜，其中第一基本结构和第二基本结构彼此重叠的第一光程差提供结构。第一基本结构是当第一光通量通过第一基本结构时，其X值为奇整数，发射X级衍射光束的火焰型结构。围绕光轴布置的第一基本结构的至少一部分包括面向与光轴相反的方向的台阶。第二基本结构是当第一光束通过第二基本结构时发射L级衍射光束的火焰型结构，其中L的值是偶数整数。围绕光轴布置的第二基本结构的至少一部分包括面向光轴的台阶。

5. 发明授权

US08514686B2 Optical information recording/reproducing apparatus and objective optical system for the same 失效
标题翻译：光信息记录/再现装置和物镜光学系统相同
公开(公告)号：US08514686B2
公开(公告)日：2013-08-20
申请号：US13050146
申请日：2011-03-17
申请人： Daisuke Koreeda , Shuichi Takeuchi
发明人： Daisuke Koreeda , Shuichi Takeuchi
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G02B5/1895 , G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An objective optical system for information recording/reproducing, at least one of optical surfaces of the objective optical system comprising a diffraction surface including a first region contributing to converging first, second and third beams and including a diffraction structure formed such that use diffraction orders for the first, second and third beams are 1st-orders and a condition 0.03
摘要翻译：一种用于信息记录/再现的物镜光学系统，所述物镜光学系统的光学表面中的至少一个包括衍射表面，所述衍射表面包括有助于会聚第一，第二和第三光束的第一区域，并且包括衍射结构，第一，第二和第三光束为1阶，满足条件0.03 <（λB11-λ1）/λ1<0.40; 第二区域有助于仅会聚第一和第二光束，并且包括形成为使得衍射级数为1级并且条件为-0.35 <（λB12-λB11）/λ1<0.35的衍射结构; 以及第三区域，仅有助于仅会聚第一光束，并且包括形成为使得第一光束的使用衍射级为奇数阶和条件的衍射结构：-0.23

6. 发明授权

US08509047B2 Optical head device and optical information device using the same, computer, optical disk player, car navigation system, optical disk recorder, and optical disk server 有权
标题翻译：光头装置及使用其的光信息装置，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：US08509047B2
公开(公告)日：2013-08-13
申请号：US12164705
申请日：2008-06-30
申请人： Yoshiaki Komma
发明人： Yoshiaki Komma
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： It is an object of the present invention to record to and reproduce different types of optical disks using light beams with different wavelengths. In an optical head device for recording to and reproducing high-density optical disks using an objective lens with a large NA, a sawtooth-shaped hologram is used for recording to and reproducing conventional optical disks such as DVDs. For blue light, a sawtooth height is the light path length 2λ, and second-order diffraction light is used. Red light generates first-order diffraction. The hologram is blazed and has convex lens function, and corrects chromatic aberration of the refractive lens. A relay lens is disposed between an infrared laser light source and the objective lens, and the light beam that is emitted from the infrared laser light source is substantially converged by the relay lens, and then, as it diverges once again, it is incident on the objective lens, which focuses the light beam into a spot on the recording surface of an optical disk after passing through an approximately 1.2 mm substrate.
摘要翻译：本发明的目的是使用具有不同波长的光束来记录和再现不同类型的光盘。在使用具有大NA的物镜记录和再现高密度光盘的光学头装置中，使用锯齿形全息图来记录和再现诸如DVD之类的常规光盘。对于蓝光，锯齿高度是光路长度2λ，并且使用二次衍射光。红光产生一阶衍射。全息图闪耀并具有凸透镜功能，并且校正折射透镜的色差。中继透镜设置在红外激光光源与物镜之间，从红外激光光源射出的光束基本上被中继透镜收敛，然后再次发散时，入射到该物镜通过大约1.2mm的基板将光束聚焦在光盘的记录表面上的光斑中。

7. 发明授权

US08477587B2 Optical pickup device and objective optical element 有权
标题翻译：光学拾取装置和物镜光学元件
公开(公告)号：US08477587B2
公开(公告)日：2013-07-02
申请号：US12597160
申请日：2008-04-08
申请人： Kentarou Nakamura , Tohru Kimura
发明人： Kentarou Nakamura , Tohru Kimura
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： There are provided an optical pickup device which can satisfactorily record and/or reproduce information on different kinds of optical information recording medium in spite of compactness, and an objective optical element used for the optical pickup device. The optical functional surface of the objective optical element includes at least two areas of a central area including an optical axis and a peripheral area surrounding the central area. An optical path difference providing structure in the central area is a structure obtained by overlapping a first central basic structure and a second central basic structure which are in a shape of ring-shaped zones divided by step differences, with each other. An optical path difference providing structure in the peripheral area is a structure obtained by overlapping a first peripheral basic structure and a second peripheral basic structure which are in a shape of ring-shaped zones divided by step differences, with each other.
摘要翻译：提供了一种即使紧凑的，也可以令人满意地记录和/或再现不同种类的光学信息记录介质上的信息的光学拾取装置和用于光学拾取装置的物镜光学元件。物镜光学元件的光学功能表面包括中心区域的至少两个区域，包括光轴和围绕中心区域的周边区域。中心区域的光程差提供结构是通过将由阶梯差除以环状区域的形状的第一中心基础结构和第二中心基础结构重叠而得到的结构。周边区域中的光程差提供结构是通过将由阶梯差除以环形区域的形状的第一周边基础结构和第二周边基础结构彼此重叠而获得的结构。

8. 发明授权

US08456979B2 Objective lens and optical information recording/reproducing apparatus 失效
标题翻译：物镜和光信息记录/重放装置
公开(公告)号：US08456979B2
公开(公告)日：2013-06-04
申请号：US13250135
申请日：2011-09-30
申请人： Satoshi Inoue , Shuichi Takeuchi
发明人： Satoshi Inoue , Shuichi Takeuchi
IPC分类号： G11B7/135
CPC分类号： G11B7/13922 , G11B7/0956 , G11B7/1374
摘要： An optical information recording/reproducing apparatus for an optical disc using a light beam having a wavelength of λ including: an objective lens that converges the light beam onto a recording surface of the optical disc and satisfies a condition: 0.48
摘要翻译：一种使用波长为λ的光束的光盘的光学信息记录/再现装置，包括：将光束会聚到光盘的记录表面上并满足以下条件的物镜：0.48

9. 发明授权

US08441900B2 Objective lens and optical pick-up device using the same 失效
标题翻译：物镜和使用其的光学拾取装置
公开(公告)号：US08441900B2
公开(公告)日：2013-05-14
申请号：US13351707
申请日：2012-01-17
申请人： Mitsuru Ito
发明人： Mitsuru Ito
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1367 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： Provided is an objective lens that allows securing of a long working distance for a laser beam with a long wavelength and has a predetermined thickness or larger, and an optical pickup apparatus including the objective lens. In an objective lens of the present invention, a first region that focuses laser beams of a BD, DVD, and CD standards, a second region that focuses the laser beams of the DVD and CD standards, and a third region that focuses the laser beams of the BD and the DVD standards are provided in this order from a center portion of the objective lens. An optical super resolution with the laser beam of the BD standard is achieved by preventing a portion of the laser beam of the BD standard transmitted through the second region from contributing to spot formation.
摘要翻译：本发明提供一种物镜，其能够确保具有长波长且具有预定厚度的激光束的长工作距离，以及包括该物镜的光学拾取装置。在本发明的物镜中，聚焦BD，DVD和CD标准品的激光束的第一区域，聚焦DVD和CD标准的激光束的第二区域和聚焦激光束的第三区域的BD和DVD标准从该物镜的中心部分依次提供。具有BD标准的激光束的光学超分辨率通过防止通过第二区域透射的BD标准的激光束的一部分对斑点形成有贡献来实现。

10. 发明申请

US20130107691A1 OPTICAL PICKUP AND OPTICAL DISC DEVICE INCLUDING THE SAME 有权
标题翻译：光学拾取器和光盘装置，包括它们
公开(公告)号：US20130107691A1
公开(公告)日：2013-05-02
申请号：US13704700
申请日：2012-04-03
申请人： Seiji Nishiwaki
发明人： Seiji Nishiwaki
IPC分类号： G11B7/1353
CPC分类号： G11B7/1353 , G02B5/1823 , G02B5/1895 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： In an embodiment, an optical pickup includes at least one light source for selectively emitting three light beams having blue, red, and infrared wavelengths, respectively, and an objective lens arranged so that each of the three light beams enters thereto. The objective lens includes a first grating, and a second grating formed in the same plane as the first grating. The first and second gratings each have phase steps arranged concentrically around a center axis of a lens in a region in which all the three light beams pass, and are different in phase step positions. The first grating diffracts the three light beams having the blue, red, and infrared wavelengths in a 2nd order, a 1st order, and the 1st order, respectively. On the other hand, the second grating diffracts the three light beams having the blue, red, and infrared wavelengths in the 1st order, the 1st order, and the 1st order, respectively. As a result, the three light beams having the blue, red, and infrared wavelengths, which have been transmitted through the first grating and the second grating, are diffracted in a 3rd order, the 2nd order, and the 2nd order, respectively.
摘要翻译：在一个实施例中，光学拾取器包括分别用于选择性地发射具有蓝色，红色和红外波长的三个光束的至少一个光源，以及布置成使得三个光束中的每一个进入其中的物镜。物镜包括第一光栅和形成在与第一光栅相同的平面中的第二光栅。第一和第二光栅各自具有在所有三个光束通过的区域中同心地围绕透镜的中心轴布置的相位步长，并且在相位步长位置上是不同的。第一光栅分别衍射出具有蓝色，红色和红外波长的三个光束，分别为二阶，一阶和一阶。另一方面，第二光栅分别以1级，1级，1级衍射具有蓝色，红色和红色波长的三个光束。结果，已经通过第一光栅和第二光栅传输的具有蓝色，红色和红色波长的三个光束分别以三阶，二阶和二阶衍射。

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