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1. 发明申请

US20180306955A1 OPTICAL PHASE DIFFERENCE COMPONENT, COMPOSITE OPTICAL COMPONENT INCORPORATING OPTICAL PHASE DIFFERENCE COMPONENT, AND METHOD FOR MANUFACTURING OPTICAL PHASE DIFFERENCE COMPONENT 审中-公开
公开(公告)号：US20180306955A1
公开(公告)日：2018-10-25
申请号：US16020069
申请日：2018-06-27
申请人： JXTG NIPPON OIL & ENERGY CORPORATION
发明人： Masanao GOTO , Gorou SUZAKI , Hironao TANAKA
IPC分类号： G02B5/30 , C23C14/06 , G03F7/00 , G02B1/04
CPC分类号： G02B5/3083 , C23C14/02 , C23C14/0629 , C23C16/02 , G02B1/04 , G02B5/30 , G03F7/0002 , G11B7/1367
摘要： An optical phase difference component includes a transparent base with a concave-convex pattern having concave portions and convex portions; a coating layer coating the concave portions and the convex portions of the concave-convex pattern; a gap defined between the convex portions of the concave-convex pattern coated with the coating layer; and a closing layer provided on the concave-convex pattern to connect tops of the convex portions of the concave-convex pattern and to close the gap. A refractive index n1 of each of the convex portions and a refractive index n2 of the coating layer at a wavelength of 550 nm satisfy n2−n1≤0.8. The optical phase difference component has a phase difference property of reverse dispersion and a wide viewing angle.

2. 发明申请

US20170301369A1 OPTICAL PICKUP DEVICE AND OPTICAL DRIVE DEVICE 审中-公开
公开(公告)号：US20170301369A1
公开(公告)日：2017-10-19
申请号：US15509960
申请日：2015-12-21
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： MASATOSHI YAJIMA , KAZUYOSHI KAJITA , MASAHIKO NAKAMURA
IPC分类号： G11B7/127 , G11B7/1367 , G02B6/28 , G11B7/00 , G02B6/35
CPC分类号： G11B7/127 , G02B6/2848 , G02B6/3526 , G11B7/082 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006 , G11B2007/0009
摘要： An optical pickup device includes a semiconductor laser that emits a laser beam, and an object lens that concentrates the laser beam emitted from the semiconductor laser on an optical disc. In this optical pickup device, an optical axis of the object lens is inclined with respect to an optical axis of the laser beam that is incident on the object lens so as to generate flares caused by coma aberration on an entrance side in a forward direction of pits of the optical disc.

3. 发明申请

US20140146653A1 OBJECTIVE LENS ELEMENT AND OPTICAL HEAD DEVICE INCLUDING THE SAME 审中-公开
标题翻译：目标镜头元件和光学头装置，包括它们
公开(公告)号：US20140146653A1
公开(公告)日：2014-05-29
申请号：US14171785
申请日：2014-02-04
申请人： Panasonic Corporation
发明人： Kazuhiro MINAMI , Yoshiaki KOMMA , Fumitomo YAMASAKI , Katsuhiko HAYASHI
IPC分类号： G11B7/1374 , G11B7/1275
CPC分类号： G11B7/1374 , G02B27/0037 , G11B7/1275 , G11B7/1353 , G11B7/1367 , G11B2007/0006
摘要： An objective lens element having improved diffraction efficiency at at least one of used wavelengths is provided. The objective lens element includes one surface including: a first region including an optical axis; and a second region surrounding the first region. A periodic first diffraction structure is formed on the first region, and a periodic second diffraction structure different from the first diffraction structure is formed on the second region. The objective lens element satisfies the following conditions. |A1−B1|
摘要翻译：提供了一种在至少一种所用波长处具有改进的衍射效率的物镜元件。物镜元件包括一个表面，包括：包括光轴的第一区域; 以及围绕所述第一区域的第二区域。在第一区域上形成周期性的第一衍射结构，在第二区域上形成与第一衍射结构不同的周期性第二衍射结构。物镜元件满足以下条件。 | A1-B1 | <| A2-B2 | （1）| B1 |≧| B2 | （2）这里，A1和B1分别是在记录表面上将第一波长的光和第二波长的光会聚的第一区域的衍射级，并且A2和B2分别是在第二区域处的会聚光的第一波长和第二波长的光分别记录在记录表面上。

4. 发明申请

US20140098656A1 OPTICAL ELEMENT 有权
标题翻译：光学元件
公开(公告)号：US20140098656A1
公开(公告)日：2014-04-10
申请号：US14100570
申请日：2013-12-09
申请人： Panasonic Corporation
发明人： Kazuhiro MINAMI , Yoshiaki KOMMA , Fumitomo YAMASAKI
IPC分类号： G11B7/1353 , G02B5/18
CPC分类号： G11B7/1353 , G02B5/1876 , G11B7/1367 , G11B7/1374 , G11B2007/0006
摘要： An optical element has at least one surface divided into a plurality of regions and includes: a first region configured to converge light with a wavelength λ1 onto a storage surface of a first optical disc and converge light with a wavelength λ2 onto a storage surface of a second optical disc; and a second region formed around the outer circumference of the first region and configured to converge light with the wavelength λ1 onto the storage surface of the first optical disc. The second region has a concave-convex structure concentrically formed on an aspheric surface and having a cross section being a saw teeth shape. The concave-convex structure is formed by a plurality of different saw teeth shapes, and the plurality of different saw teeth shapes respectively give different phase differences corresponding to substantially integer multiples of the wavelength λ1, for light with the wavelength λ1.
摘要翻译：光学元件具有被划分为多个区域的至少一个表面，并且包括：第一区域，被配置为将具有波长λ1的光会聚到第一光盘的存储表面上，并且将波长λ2的光会聚到一个第二光盘; 以及第二区域，形成在所述第一区域的外周周围，并且被配置为将具有波长λ1的光会聚到所述第一光盘的所述存储表面上。第二区域具有同心地形成在非球面上并具有锯齿形状的横截面的凹凸结构。凹凸结构由多个不同的锯齿形状形成，并且对于具有波长λ1的光，多个不同的锯齿形状分别给出对应于波长λ1的基本整数倍的不同相位差。

5. 发明申请

US20140010058A1 OPTICAL INFORMATION DEVICE, OPTICAL DISC DRIVING DEVICE, OPTICAL INFORMATION RECORDING DEVICE, OPTICAL INFORMATION REPRODUCING DEVICE, GAP CONTROL METHOD, AND OPTICAL PICKUP 有权
标题翻译：光学信息装置，光盘驱动装置，光信息记录装置，光信息再现装置，光栅控制方法和光拾取
公开(公告)号：US20140010058A1
公开(公告)日：2014-01-09
申请号：US14005376
申请日：2012-04-11
申请人： Keiichi Matsuzaki , Kousei Sano , Hidenori Wada , Tatsuya Takaoka
发明人： Keiichi Matsuzaki , Kousei Sano , Hidenori Wada , Tatsuya Takaoka
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , B82Y20/00 , G11B7/0908 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/1387 , G11B2007/13727
摘要： An optical information device is provided with a first scattering medium (9), a second scattering medium (10), a third scattering medium (11); a diffraction element (4) which generates a plurality of light beams; an objective lens (6) which guides, to the first scattering medium (9) and to the third scattering medium (11) out of the first scattering medium (9), the second scattering medium (10), and the third scattering medium (11), two light beams out of the plurality of the light beams; and an arithmetic circuit (17) which detects a gap interval between the first scattering medium (9) and the third scattering medium (11), and an information medium (12), based on a change in an amount of reflected light from the first scattering medium (9) and from the third scattering medium (11).
摘要翻译：光信息装置设置有第一散射介质（9），第二散射介质（10），第三散射介质（11）。产生多个光束的衍射元件（4）; 从第一散射介质（9）向第一散射介质（9）和第三散射介质（11）引出第二散射介质（10）和第三散射介质（6）的物镜（6） 11），多个光束中的两个光束; 以及检测第一散射介质（9）和第三散射介质（11）之间的间隙的运算电路（17），以及基于来自第一散射介质（9）的反射光的变化的信息介质散射介质（9）和第三散射介质（11）。

6. 发明授权

US08339923B2 Objective optical element and optical pickup device 有权
标题翻译：物镜光学元件和光学拾取装置
公开(公告)号：US08339923B2
公开(公告)日：2012-12-25
申请号：US13139697
申请日：2009-12-15
申请人： Kentarou Nakamura
发明人： Kentarou Nakamura
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G02B5/18 , G02B5/1895 , G02B13/0025 , G02B13/0055 , G02B27/30 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： Provided is an objective optical element which can appropriately correct degradation from spherical aberration upon fluctuation of a light source wavelength while maintaining light use efficiency, just by changing the magnification of the objective optical element, and which can record/reproduce information to/from different optical discs. Also provided is an optical pickup device using the objective optical element. When a light flux having two different wavelengths λ11, λ12 (wherein λ11 ΔSA3>ΔSA5>0 (1).
摘要翻译：提供了一种物镜光学元件，其可以通过改变物镜光学元件的倍率来适当地校正光源波长的波动时的球面像差的降低，同时保持光的使用效率，并且可以从/不同的光学元件记录/再现信息光盘还提供了使用物镜光学元件的光学拾取装置。当波长λ1范围内具有两个不同波长λ11，λ12（其中λ11<λ12和λ12-λ11= 5nm）的光束被引入物镜光学元件以测量波前像差时，以下三阶和五阶获得单位为λrms的球面像差：SA3（λ11），SA5（λ11），SA3（λ12），SA5（λ12）。如果＆Dgr; SA3 = | SA3（λ12）-SA3（λ11）|，＆Dgr; SA5 = | SA5（λ12）-SA5（λ11）|，则满足以下表达式：0.18>＆Dgr; SA3>＆Dgr; SA5> 0 （1）。

7. 发明申请

US20120213046A1 OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS 失效
标题翻译：光学拾取装置和光盘装置
公开(公告)号：US20120213046A1
公开(公告)日：2012-08-23
申请号：US13372529
申请日：2012-02-14
申请人： Kazuyoshi YAMAZAKI
发明人： Kazuyoshi YAMAZAKI
IPC分类号： G11B7/1353 , G11B7/1374 , G11B20/18 , G11B7/1395
CPC分类号： G11B7/1353 , G11B7/131 , G11B7/1356 , G11B7/1367 , G11B2007/0013
摘要： In an optical pickup device for a simple optical system, a light beam emitted from a laser diode is split into first and second light beams by a polarized beam splitter, an optical disc is irradiated with the first light beam to obtain signal light, and the second beam is reflected by a reflection element to obtain reference light. Light beams of the signal light and the reference light are synthesized into one light beam, the synthesized light beam is separated into four light beams by a phase difference forming unit including a grating, a divided wave plate and a polarization grating, and different phase differences are afforded to the signal light and the reference light in each light beam. The four light beams are detected by one detector to generate the reproduction signal.
摘要翻译：在用于简单光学系统的光学拾取装置中，从激光二极管发射的光束被偏振分束器分成第一和第二光束，用第一光束照射光盘以获得信号光，并且第二光束被反射元件反射以获得参考光。将信号光和参考光的光束合成为一个光束，通过包括光栅，分隔波片和偏振光栅的相位差形成单元将合成光束分离为四个光束，并且具有不同的相位差被提供给每个光束中的信号光和参考光。四个光束由一个检测器检测以产生再现信号。

8. 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。

9. 发明授权

US08154977B2 Reflecting wavelength plate and optical pickup using reflecting wavelength plate 有权
标题翻译：使用反射波片反射波长板和光学拾取器
公开(公告)号：US08154977B2
公开(公告)日：2012-04-10
申请号：US12842369
申请日：2010-07-23
申请人： Hideaki Hirai , Kazuhiro Umeki , Toshimichi Nasukawa
发明人： Hideaki Hirai , Kazuhiro Umeki , Toshimichi Nasukawa
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1362 , G11B7/1367 , G11B2007/0006
摘要： Disclosed is a reflecting wavelength plate that deflects and reflects a light path and adds a phase difference with respect to plural incident light having different wavelengths. The reflecting wavelength plate includes a substrate; a reflecting film laminated on the substrate; and a sub-wavelength concavo-convex structure that is laminated on the reflecting film and has a pitch less than or equal to the shortest wavelength of the plural incident light. The filling factor and the groove depth of the sub-wavelength concavo-convex structure are determined so as to add the phase difference obtained by (kπ)/8, where k is an integer, to the plural incident light having the different wavelengths.
摘要翻译：公开了一种反射波长板，其使光路偏转并反射，并且相对于具有不同波长的多个入射光增加相位差。反射波长板包括基板; 层叠在基板上的反射膜; 以及层叠在反射膜上并具有小于或等于多个入射光的最短波长的间距的亚波长凹凸结构。确定亚波长凹凸结构的填充因子和凹槽深度，以便将具有不同波长的多个入射光中的（k＆pgr）/ 8（其中k是整数）获得的相位差相加。

10. 发明授权

US08081558B2 Optical system of optical pick-up and optical information recording/reproducing apparatus 有权
标题翻译：光拾取光学系统和光信息记录/重放装置
公开(公告)号：US08081558B2
公开(公告)日：2011-12-20
申请号：US12914218
申请日：2010-10-28
申请人： Naoki Yamagata , Satoshi Inoue , Shuichi Takeuchi
发明人： Naoki Yamagata , Satoshi Inoue , Shuichi Takeuchi
IPC分类号： G11B7/00
CPC分类号： G11B7/1367 , G11B7/1374 , G11B7/13922
摘要： An optical system of an optical pick-up including a resin coupling lens and a resin objective lens with NA larger than 0.8, wherein, magnification β satisfies a condition: −0.13
摘要翻译：一种光拾取器的光学系统，包括树脂耦合透镜和NA大于0.8的树脂物镜，其中放大倍率满足条件：-0.13 <＆bgr <0.08，物镜的焦距f满足条件：1.15

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