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11. 发明申请

US20060164734A1 Optical pickup lens device and information recording and reproducing device using the same 有权
公开(公告)号：US20060164734A1
公开(公告)日：2006-07-27
申请号：US11385765
申请日：2006-03-22
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma
IPC分类号： G02B9/00
CPC分类号： G11B7/13925 , G11B7/1353 , G11B7/1367 , G11B7/1376
摘要： An optical pickup lens device includes, in the order from the light source side, collimating means for converting a bundle of rays into parallel rays or predetermined convergent or divergent rays, the collimating means being movably held along a direction of an optical axis of a bundle of rays emitted from a light source; an aberration correcting element for allowing a bundle of rays emitted from the collimating means to be transmitted therethrough; and an objective lens element having a numerical aperture of 0.8 or more, and converging a bundle of rays coming from the aberration correcting element onto the information recording medium to form a spot. The aberration correcting element and the objective lens element are integrally held together in a direction orthogonal to the optical axis so as to perform tracking on the information recording medium, and satisfy predetermined conditions.

12. 发明授权

US08760989B2 Objective lens element 有权
标题翻译：物镜元件
公开(公告)号：US08760989B2
公开(公告)日：2014-06-24
申请号：US13414724
申请日：2012-03-08
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma , Kazuhiko Ishimaru
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma , Kazuhiko Ishimaru
IPC分类号： G11B7/00
CPC分类号： G02B3/08 , G02B5/1876 , G02B2005/1804 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An objective lens element which has excellent compatibility with optical discs having different base material thicknesses is provided. An objective lens element 141 has optically functional surfaces on an incident side and an exit side. Either one of the optically functional surfaces is divided into an inner part 131B including a rotational symmetry axis and an outer part 131F which is a ring-shaped region surrounding the inner part 131B. On the inner part 131B, a plurality of discontinuous steps are provided. The plurality of steps change in height in the same direction from the optical axis toward the outer part, and each of the steps causes a constant optical path difference longer than the wavelength λ1 to the first incident light beam 61 and causes a constant optical path difference shorter than the wavelength λ2 to the second incident light beam 62.
摘要翻译：提供了具有与具有不同基材厚度的光盘的良好兼容性的物镜元件。物镜141具有在入射侧和出射侧的光学功能表面。光学功能表面中的任一个被分成包括旋转对称轴的内部部分131B和围绕内部部分131B的环形区域的外部部分131F。在内部部分131B上设有多个不连续的步骤。多个步骤在与光轴朝向外部的相同方向上的高度变化，并且每个步骤对于第一入射光束61产生比波长λ1长的恒定光程差，并且导致恒定的光程差比第二入射光束62的波长λ2短。

13. 发明授权

US08406110B2 Objective lens element 有权
标题翻译：物镜元件
公开(公告)号：US08406110B2
公开(公告)日：2013-03-26
申请号：US13410313
申请日：2012-03-02
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma
IPC分类号： G11B7/135
CPC分类号： G02B5/1876 , G11B7/1353 , G11B7/1374 , G11B7/1376 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An objective lens element having excellent compatibility with optical discs having different base material thicknesses is provided. The objective lens element has optically functional surfaces on an incident side and an exit side. At least either one of the optically functional surfaces on the incident side and the exit side includes a diffraction portion which satisfies at least either one of the following formulas (1) and (2): θ1×θ2
摘要翻译：提供了具有与具有不同基材厚度的光盘的良好兼容性的物镜元件。物镜元件在入射侧和出射侧具有光学功能表面。入射侧和出射侧的光学功能面中的至少任一方包括满足下述式（1）和（2）中的至少任一个的衍射部：＆lt; 1×＆Thetas; 2 <0（× 表示乘法）（1），（sin＆hetas; 2）/λ22= - （sin＆hetas; 1）/λ1（2），其中，θ是具有提供最大衍射效率的衍射级的光束的衍射角在波长λ1处，并且λ是具有在波长λ2处提供最大衍射效率的衍射级的光束的衍射角。

14. 发明申请

US20120170122A1 Objective Lens Element 有权
标题翻译：物镜元件
公开(公告)号：US20120170122A1
公开(公告)日：2012-07-05
申请号：US13414724
申请日：2012-03-08
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma , Kazuhiko Ishimaru
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma , Kazuhiko Ishimaru
IPC分类号： G02B5/18
CPC分类号： G02B3/08 , G02B5/1876 , G02B2005/1804 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An objective lens element which has excellent compatibility with optical discs having different base material thicknesses is provided. An objective lens element 141 has optically functional surfaces on an incident side and an exit side. Either one of the optically functional surfaces is divided into an inner part 131B including a rotational symmetry axis and an outer part 131F which is a ring-shaped region surrounding the inner part 131B. On the inner part 131B, a plurality of discontinuous steps are provided. The plurality of steps change in height in the same direction from the optical axis toward the outer part, and each of the steps causes a constant optical path difference longer than the wavelength λ1 to the first incident light beam 61 and causes a constant optical path difference shorter than the wavelength λ2 to the second incident light beam 62.
摘要翻译：提供了具有与具有不同基材厚度的光盘的良好兼容性的物镜元件。物镜141具有在入射侧和出射侧的光学功能表面。光学功能表面中的任一个被分成包括旋转对称轴的内部部分131B和围绕内部部分131B的环形区域的外部部分131F。在内部部分131B上设有多个不连续的步骤。多个步骤在与光轴朝向外部的相同方向上的高度变化，并且每个步骤对于第一入射光束61产生比波长λ1长的恒定光程差，并且导致恒定的光程差比第二入射光束62的波长λ2短。

15. 发明授权

US07068445B2 Optical pickup lens device and information recording and reproducing device using the same 有权
公开(公告)号：US07068445B2
公开(公告)日：2006-06-27
申请号：US10535339
申请日：2004-07-09
申请人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma , Fumitomo Yamasaki
发明人： Katsuhiko Hayashi , Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma , Fumitomo Yamasaki
IPC分类号： G02B3/03 , G02B9/00 , G11B7/00
CPC分类号： G11B7/13925 , G11B7/1353 , G11B7/1367 , G11B7/1376
摘要： An optical pickup lens device includes, in the order from the light source side, collimating means for converting a bundle of rays into parallel rays or predetermined convergent or divergent rays, the collimating means being movably held along a direction of an optical axis of a bundle of rays emitted from a light source; an aberration correcting element for allowing a bundle of rays emitted from the collimating means to be transmitted therethrough; and an objective lens element having a numerical aperture of 0.8 or more, and converging a bundle of rays coming from the aberration correcting element onto the information recording medium to form a spot. The aberration correcting element and the objective lens element are integrally held together in a direction orthogonal to the optical axis so as to perform tracking on the information recording medium, and satisfy predetermined conditions.

16. 发明授权

US07248409B2 Optical element, optical lens, optical head apparatus, optical information apparatus, computer, optical information medium player, car navigation system, optical information medium recorder, and optical information medium server 有权
标题翻译：光学元件，光学透镜，光学头装置，光学信息装置，计算机，光学信息媒体播放器，汽车导航系统，光学信息媒体记录器和光学信息媒体服务器
公开(公告)号：US07248409B2
公开(公告)日：2007-07-24
申请号：US10716990
申请日：2003-11-18
申请人： Yoshiaki Komma , Sadao Mizuno , Yasuhiro Tanaka
发明人： Yoshiaki Komma , Sadao Mizuno , Yasuhiro Tanaka
IPC分类号： G02B5/18
CPC分类号： G11B7/1369 , G02B5/1842 , G02B27/4238 , G02B27/4277 , G02B27/4294 , G11B7/0948 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B7/13925 , G11B2007/0006
摘要： An optical lens includes a hologram, a refractive lens, and a phase level difference. The hologram has a sawtooth shape grating having a sawtooth shape in cross-section, and generates +2nd-order diffracted light most strongly with respect to blue light and +1st-order diffracted light most strongly with respect to red light, by setting a height of the sawtooth shape grating. The +2nd-order diffracted light of blue light is condensed through a substrate with a thickness t1, and the +1st-diffracted light of red light is condensed through a substrate with a thickness t2 (t1
摘要翻译：光学透镜包括全息图，折射透镜和相位差。全息图具有锯齿形的横截面形状的锯齿状光栅，相对于红色光最强烈地产生相对于蓝色光和+ 1级衍射光的+ 2级衍射光，通过设定高度的锯齿形光栅。蓝色光的+ 2级衍射光通过厚度为t 1的基板凝结，红光的+第1衍射光通过厚度t 2（t 1

17. 发明授权

US08305864B2 Compound objective lens, optical head device, optical information device, and information processing device 有权
标题翻译：复合物镜，光头装置，光信息装置和信息处理装置
公开(公告)号：US08305864B2
公开(公告)日：2012-11-06
申请号：US13257380
申请日：2011-01-07
申请人： Yoshiaki Komma , Katsuhiko Hayashi , Fumitomo Yamasaki , Michihiro Yamagata
发明人： Yoshiaki Komma , Katsuhiko Hayashi , Fumitomo Yamasaki , Michihiro Yamagata
IPC分类号： G11B7/00
CPC分类号： G11B7/13922 , G11B7/1353 , G11B7/1374 , G11B7/1376 , G11B7/13925 , G11B2007/0006 , G11B2007/13727
摘要： A compound objective lens, an optical head device, an optical information device, and an information processing device that can inhibit the occurrence of aberration even when a light beam source wavelength shifts from the designed value. A diffraction structure having a sawtooth or stepwise cross section is formed in the region (R10) and region (R20). The height of the sawtooth or stepwise cross section formed in the region (R10) provides a light beam, which has a predetermined wavelength, with a difference in optical path length of N times the predetermined wavelength, as compared with a case of propagation in air. The height of the sawtooth or stepwise cross section formed in the region (R20) provides the light beam, which has the predetermined wavelength, with a difference in optical path length of J times the predetermined wavelength, as compared with a case of propagation in air. At least one of the difference in height between both ends of a boundary band (RB) provided between the region (R10) and the region (R20), and the width of the boundary band (RB) provides the light beam, which has the predetermined wavelength, with a difference in optical path length of (N+J)/2 times (N and J are mutually different natural numbers) the predetermined wavelength, as compared with a case of transmission in air.
摘要翻译：复光物镜，光头装置，光信息装置和信息处理装置，即使当光束源波长从设计值偏移时也能够抑制像差的发生。在区域（R10）和区域（R20）中形成具有锯齿状或阶梯状横截面的衍射结构。与在空气中传播的情况相比，在区域（R10）中形成的锯齿状或阶梯状横截面的高度提供具有预定波长的光束，其具有N倍于预定波长的光程长度差。与在空气中传播的情况相比，在区域（R20）中形成的锯齿或逐步横截面的高度提供了具有预定波长的光束，其光路长度差为J倍于预定波长。设置在区域（R10）和区域（R20）之间的边界带（RB）的两端之间的高度差异和边界带（RB）的宽度中的至少一个高度提供了具有与空气传播的情况相比，预定波长与（N + J）/ 2倍（N和J相互不同的自然数）的光程长度差异。

18. 发明授权

US07924686B2 Objective lens and optical pickup device 失效
标题翻译：物镜和光学拾取装置
公开(公告)号：US07924686B2
公开(公告)日：2011-04-12
申请号：US12882300
申请日：2010-09-15
申请人： Takahiro Tomita , Michihiro Yamagata , Yoshiaki Komma , Katsuhiko Hayashi
发明人： Takahiro Tomita , Michihiro Yamagata , Yoshiaki Komma , Katsuhiko Hayashi
IPC分类号： G11B7/135
CPC分类号： G11B7/1374
摘要： An objective lens for converging light onto a recording surface of an optical information recording medium in order to perform at least one of recording, reproduction and deletion of information on the optical information recording medium. The objective lens is a bi-convex single lens having at least one aspheric surface, and satisfies the following conditions: 0.8
摘要翻译：一种物镜，用于将光聚焦到光学信息记录介质的记录表面上，以便执行光学信息记录介质上的信息的记录，再现和删除中的至少一个。物镜是具有至少一个非球面的双凸单透镜，满足以下条件：0.8

19. 发明授权

US07817525B2 Objective lens and optical pickup device 失效
标题翻译：物镜和光学拾取装置
公开(公告)号：US07817525B2
公开(公告)日：2010-10-19
申请号：US12128255
申请日：2008-05-28
申请人： Takahiro Tomita , Michihiro Yamagata , Yoshiaki Komma , Katsuhiko Hayashi
发明人： Takahiro Tomita , Michihiro Yamagata , Yoshiaki Komma , Katsuhiko Hayashi
IPC分类号： G11B7/135
CPC分类号： G11B7/1374
摘要： In order that thickness reduction, weight reduction, and mass productivity improvement should be achieved in an objective lens even in the case where NA is high, an objective lens according to the present invention is a bi-convex single lens having at least one aspheric surface, and satisfies conditions: (1) 3.5
摘要翻译：为了即使在NA高的情况下也能够在物镜上实现厚度减小，重量减轻和质量生产率提高，根据本发明的物镜是具有至少一个非球面的双凸单透镜，满足条件：（1）3.5

20. 发明申请

US20120023514A1 COMPOUND OBJECTIVE LENS, OPTICAL HEAD DEVICE, OPTICAL INFORMATION DEVICE, AND INFORMATION PROCESSING DEVICE 有权
标题翻译：化合物目标透镜，光学头装置，光信息装置和信息处理装置
公开(公告)号：US20120023514A1
公开(公告)日：2012-01-26
申请号：US13257380
申请日：2011-01-07
申请人： Yoshiaki Komma , Katsuhiko Hayashi , Fumitomo Yamasaki , Michihiro Yamagata
发明人： Yoshiaki Komma , Katsuhiko Hayashi , Fumitomo Yamasaki , Michihiro Yamagata
IPC分类号： G02B27/42 , G11B17/028 , G11B7/13
CPC分类号： G11B7/13922 , G11B7/1353 , G11B7/1374 , G11B7/1376 , G11B7/13925 , G11B2007/0006 , G11B2007/13727
摘要： A compound objective lens, an optical head device, an optical information device, and an information processing device that can inhibit the occurrence of aberration even when a light beam source wavelength shifts from the designed value. A diffraction structure having a sawtooth or stepwise cross section is formed in the region (R10) and region (R20). The height of the sawtooth or stepwise cross section formed in the region (R10) provides a light beam, which has a predetermined wavelength, with a difference in optical path length of N times the predetermined wavelength, as compared with a case of propagation in air. The height of the sawtooth or stepwise cross section formed in the region (R20) provides the light beam, which has the predetermined wavelength, with a difference in optical path length of J times the predetermined wavelength, as compared with a case of propagation in air. At least one of the difference in height between both ends of a boundary band (RB) provided between the region (R10) and the region (R20), and the width of the boundary band (RB) provides the light beam, which has the predetermined wavelength, with a difference in optical path length of (N+J)/2 times (N and J are mutually different natural numbers) the predetermined wavelength, as compared with a case of transmission in air.
摘要翻译：复光物镜，光头装置，光信息装置和信息处理装置，即使当光束源波长从设计值偏移时也能够抑制像差的发生。在区域（R10）和区域（R20）中形成具有锯齿状或阶梯状横截面的衍射结构。与在空气中传播的情况相比，在区域（R10）中形成的锯齿状或阶梯状横截面的高度提供具有预定波长的光束，其具有N倍于预定波长的光程长度差。与在空气中传播的情况相比，在区域（R20）中形成的锯齿或逐步横截面的高度提供了具有预定波长的光束，其光路长度差为J倍于预定波长。设置在区域（R10）和区域（R20）之间的边界带（RB）的两端之间的高度差异和边界带（RB）的宽度中的至少一个高度提供了具有与空气传播的情况相比，预定波长与（N + J）/ 2倍（N和J相互不同的自然数）的光程长度差异。

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