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41. 发明授权

US07855945B2 Optical pickup apparatus and optical element 有权
标题翻译：光拾取装置和光学元件
公开(公告)号：US07855945B2
公开(公告)日：2010-12-21
申请号：US11490808
申请日：2006-07-21
申请人： Kiyono Ikenaka , Yuichi Atarashi
发明人： Kiyono Ikenaka , Yuichi Atarashi
IPC分类号： G11B7/00
CPC分类号： G11B7/1392 , G11B7/1275 , G11B7/1353 , G11B7/1374 , G11B2007/0006
摘要： An optical pickup apparatus comprises first, second and third light sources to emit light fluxes of wavelength λ1, λ2 and λ3 for conducting recording and/or reproducing information for first, second and third optical information recording mediums having respective protective substrates of thickness t1, t2 and t3 and a diffractive optical element located on a common optical path for the first, second and third light sources. A converged-light spot is formed on the first optical information recording medium with m-th order diffracted-light ray of the wavelength λ1, on the second optical information recording medium with n-th order diffracted-light ray of the wavelength λ2, and on the third optical information recording medium with k-th order diffracted-light ray of the wavelength λ3 generated by the diffractive optical element respectively, wherein one of m, n and k is different from one of other two numbers.
摘要翻译：光拾取装置包括第一，第二和第三光源，以发射波长λ1，λ2和λ3的光束，用于对具有厚度为t1，t2的各个保护基板的第一，第二和第三光学信息记录介质进行记录和/或再现信息和t3以及位于第一，第二和第三光源的公共光路上的衍射光学元件。在具有波长λ1的n级衍射光的第二光学信息记录介质上，在具有波长λ1的m级衍射光的第一光学信息记录介质上形成会聚光点，以及在由衍射光学元件分别产生的波长λ3的k级衍射光的第三光学信息记录介质上，其中m，n和k之一不同于其它两个数字之一。

42. 发明授权

US07821904B2 Optical pickup apparatus and objective optical element 失效
标题翻译：光学拾取装置和物镜光学元件
公开(公告)号：US07821904B2
公开(公告)日：2010-10-26
申请号：US11222137
申请日：2005-09-09
申请人： Tohru Kimura , Yuichi Atarashi , Kiyono Ikenaka , Kenji Ogiwara , Eiji Nomura
发明人： Tohru Kimura , Yuichi Atarashi , Kiyono Ikenaka , Kenji Ogiwara , Eiji Nomura
IPC分类号： G11B7/00
CPC分类号： G11B7/1367 , G11B7/1275 , G11B7/1374 , G11B7/1376 , G11B7/13925 , G11B2007/0006
摘要： A light flux from the first light source forms a converged spot on first optical information recording medium by only a refraction action of the aspheric surface, or by a combination of the refraction action and an optical action given by at least one of the first phase structure and the second phase structure, a light flux from the second light source forms a converged spot on second optical recording medium by a combination of a refraction action of the aspheric surface and an optical action given by at least one of the first phase structure and the second phase structure, and a light flux from the third light source forms a converged spot on third optical recording medium by a combination of a refraction action of the aspheric surface and an optical action given by at least one of the first phase structure and the second phase structure.
摘要翻译：来自第一光源的光束仅通过非球面的折射作用或通过由第一相结构中的至少一个给出的折射作用和光学作用的组合在第一光学信息记录介质上形成会聚点和第二相结构，来自第二光源的光束通过非球面的折射作用和由第一相结构和第二相结构中的至少一个给出的光学作用的组合在第二光学记录介质上形成会聚点第二相结构，并且来自第三光源的光束通过非球面的折射作用和由第一相结构和第二相结构中的至少一个给出的光学作用的组合在第三光学记录介质上形成会聚点相结构。

43. 发明授权

US07636291B2 Optical pickup apparatus 失效
标题翻译：光拾取装置
公开(公告)号：US07636291B2
公开(公告)日：2009-12-22
申请号：US11713491
申请日：2007-03-01
申请人： Kiyono Ikenaka
发明人： Kiyono Ikenaka
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： The present invention provides an optical pickup apparatus including a first light source, a second light source, a third light source, and a light-converging optical system including an objective lens. The objective lens includes at least one optical surface with a diffractive structure. The diffractive structure includes a plurality of ring shaped zones. Each of the ring shaped zones is concentrically arranged around an optical axis and includes a step difference extending along the optical axis. In the objective lens, the predetermined conditions according to the offence against a sine condition, an average of step differences of the plurality of ring shaped zones, a focal length, and a magnification, are satisfied.
摘要翻译：本发明提供一种包括第一光源，第二光源，第三光源和包括物镜的聚光光学系统的光学拾取装置。物镜包括具有衍射结构的至少一个光学表面。衍射结构包括多个环形区域。每个环形区域围绕光轴同心地布置并且包括沿着光轴延伸的台阶差。在物镜中，满足根据正弦条件的违规的预定条件，多个环形区域的阶梯差的平均值，焦距和倍率。

44. 发明申请

US20090196147A1 Optical pickup apparatus 失效
标题翻译：光拾取装置
公开(公告)号：US20090196147A1
公开(公告)日：2009-08-06
申请号：US11663299
申请日：2006-11-06
申请人： Yuichi Atarashi , Kohei Ota , Junji Hashimura , Kiyono Ikenaka
发明人： Yuichi Atarashi , Kohei Ota , Junji Hashimura , Kiyono Ikenaka
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1365 , G11B7/1369 , G11B7/1378 , G11B7/13922 , G11B7/13925 , G11B7/1398 , G11B2007/0006
摘要： An optical pickup apparatus for information recording and/or reproduction on different optical information recording media with compatibility among these media, the optical surface of a first objective lens and the optical surface of a second objective lens are formed only of a refractive surface. The second objective lens is used in common for the first light flux with a wavelength of λ1 and the second light flux with a wavelength of λ2, but in the case where the protective substrate t2 of the second optical information recording medium and the protective substrate t3 of the third optical information recording medium are the same, it is not necessary to take the difference in thickness of the protective substrate into consideration. Chromatic aberration based on the difference in wavelength between the first light flux and the second light flux can be corrected by displacing the second coupling lens.
摘要翻译：用于在这些介质之间具有兼容性的不同光学信息记录介质上的信息记录和/或再现的光学拾取装置，第一物镜的光学表面和第二物镜的光学表面仅由折射表面形成。第二物镜用于波长为λ1的第一光束和波长为λ2的第二光通量，但是在第二光学信息记录介质和保护基板t3的保护基板t2的情况下第三光信息记录介质的厚度相同时，不需要考虑保护基板的厚度差。可以通过移动第二耦合透镜来校正基于第一光束和第二光束之间的波长差的色像差。

45. 发明申请

US20090147657A1 Optical pickup device and objective lens used in the same 失效
标题翻译：光拾取装置与物镜相同
公开(公告)号：US20090147657A1
公开(公告)日：2009-06-11
申请号：US12320697
申请日：2009-02-02
申请人： Kiyono Ikenaka , Kohei Ota , Yuichi Atarashi
发明人： Kiyono Ikenaka , Kohei Ota , Yuichi Atarashi
IPC分类号： G11B7/00
CPC分类号： G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An optical system has an optical functional surface including a common region used for conducting information recording and/or reproducing for both of a first optical information recording medium and a second optical information recording medium. The common region comprises a refractive surface of an imaginary basic aspherical surface and a optical path difference providing structure in which plural ring-shapes zones are separated around the center of an optical axis and neighboring ring-shaped zones are displaced to each other in a direction of an optical axis so as to cause an optical path difference obtained by multiplying a predetermined wavelength λs (λ1
摘要翻译：光学系统具有包括用于对第一光学信息记录介质和第二光学信息记录介质进行信息记录和/或再现的公共区域的光学功能表面。公共区域包括假想基本非球面的折射表面和光程差提供结构，其中多个环形区域围绕光轴的中心分开，并且相邻的环形区域沿着方向以使得通过将预定波长lambdas（λ1

46. 发明授权

US07525879B2 Objective optical element and optical pickup apparatus 失效
标题翻译：物镜光学元件和光学拾取装置
公开(公告)号：US07525879B2
公开(公告)日：2009-04-28
申请号：US11076232
申请日：2005-03-10
申请人： Mitsuru Mimori , Junji Hashimura , Kiyono Ikenaka
发明人： Mitsuru Mimori , Junji Hashimura , Kiyono Ikenaka
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： An objective optical element for use in an optical pickup apparatus first-third light sources emitting first-third light fluxes and a light converging optical system, includes a first optical path difference providing structure for providing an optical path difference which provides a substantial phase change to the third light flux and does not provide a substantial phase change to the first and second light fluxes; and a second optical path difference providing structure for providing an optical path difference to the first light flux, the second light flux and the third light flux, wherein the objective optical element converges the first-third light fluxes through the protective layers with the thicknesses t1-t3 onto an information recording surface of the first-third optical information media respectively.
摘要翻译：一种用于光拾取装置的发射第一和第三光束的第一和第三光源的物镜光学元件包括：第一光程差提供结构，用于提供光程差，其提供实质的相位变化第三光束并且不提供对第一和第二光束的实质相位变化; 以及用于向第一光束，第二光束和第三光束提供光路差的第二光程差提供结构，其中物镜光学元件使第一至第三光束通过保护层会聚，厚度为t1 -t3分别在第一至第三光学信息介质的信息记录表面上。

47. 发明授权

US07369480B2 Optical pickup device and optical element 失效
标题翻译：光拾取装置和光学元件
公开(公告)号：US07369480B2
公开(公告)日：2008-05-06
申请号：US11108750
申请日：2005-04-19
申请人： Kiyono Ikenaka , Mika Wachi
发明人： Kiyono Ikenaka , Mika Wachi
IPC分类号： G11B7/135
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/1367 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup device includes a light source emitting a light beam having a wavelength within a range of 390 nm to 420 nm and an optical element to perform recording and/or reproducing of information of an optical disk having a protective substrate thickness d1 mm using the first light beam from the first light source, wherein the optical element is made of a mixed material produced by dispersing particles into a resin, a sign of a refractive index change Δn2/Δt of the particles owing to a temperature change is opposite to a sign of a refractive index change Δn1/Δt of the resin owing to a temperature change, or an absolute value of the refractive index change Δn2/Δt is smaller than an absolute value of the refractive index change Δn1/Δt.
摘要翻译：光拾取装置包括发射波长在390nm至420nm范围内的光束的光源和用于执行具有保护基板厚度d的光盘的信息的记录和/或再现的光学元件，使用来自第一光源的第一光束，其中光学元件由通过将颗粒分散到树脂中而制成的混合材料，折射率变化的符号Deltan2 /由于温度变化引起的颗粒的变形与折射率变化的迹象相反，由于温度变化或折射率变化的绝对值，树脂的变形 Deltan＆lt; 2＆gt; / Deltat小于折射率变化的绝对值Deltan＆lt; 1＆gt; / Deltat。

48. 发明申请

US20080101166A1 Optical element and optical pickup apparatus 审中-公开
标题翻译：光学元件和光学拾取装置
公开(公告)号：US20080101166A1
公开(公告)日：2008-05-01
申请号：US11975544
申请日：2007-10-19
申请人： Kiyono Ikenaka
发明人： Kiyono Ikenaka
IPC分类号： G11B11/00 , G11B7/00
CPC分类号： G11B7/1374 , G11B2007/0006
摘要： The present invention provides an optical element for use in an optical pickup apparatus. The optical element includes: a first lens section and a second lens section formed in one body. The first lens section includes an optical surface divided by a border defined by a first predetermined diameter into a first inner area and a first outer area. The surface-normal angle of the first inner area at an outer edge thereof is larger than that of the first outer area at an inner edge thereof. The second lens section includes an optical surface divided by a border defined by a second predetermined diameter into a second inner area and a second outer area. The surface-normal angle of the second inner area at an outer edge thereof is smaller than that of the second outer area at an inner edge thereof.
摘要翻译：本发明提供一种用于光拾取装置的光学元件。光学元件包括：第一透镜部分和形成在一个主体中的第二透镜部分。第一透镜部分包括被由第一预定直径限定的边界划分成第一内部区域和第一外部区域的光学表面。第一内部区域在其外边缘处的表面法线角度大于其内边缘处的第一外部区域的表面法线角度。第二透镜部分包括被由第二预定直径限定的边界划分成第二内部区域和第二外部区域的光学表面。第二内部区域在其外边缘处的表面法线角度小于其内边缘处的第二外部区域的表面法线角度。

49. 发明申请

US20070211602A1 Optical pickup apparatus 审中-公开
标题翻译：光拾取装置
公开(公告)号：US20070211602A1
公开(公告)日：2007-09-13
申请号：US11713456
申请日：2007-03-01
申请人： Kiyono Ikenaka
发明人： Kiyono Ikenaka
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： The present invention provides an optical pickup apparatus including a first light source, a second light source, a third light source, and a light-converging optical system including an objective lens. The diffractive structure includes a plurality of ring shaped zones. Each of the ring shaped zones is concentrically arranged around an optical axis and includes a step difference extending along the optical axis. In the objective lens, the predetermined conditions according to the offence against a sine condition, an average of step differences of the plurality of ring shaped zones, a focal length, and a magnification, are satisfied.
摘要翻译：本发明提供一种包括第一光源，第二光源，第三光源和包括物镜的聚光光学系统的光学拾取装置。衍射结构包括多个环形区域。每个环形区域围绕光轴同心地布置并且包括沿着光轴延伸的台阶差。在物镜中，满足根据正弦条件的违规的预定条件，多个环形区域的阶梯差的平均值，焦距和倍率。

50. 发明申请

US20070133375A1 Optical pickup device and optical element used for the same 失效
公开(公告)号：US20070133375A1
公开(公告)日：2007-06-14
申请号：US11702191
申请日：2007-02-05
申请人： Kiyono Ikenaka , Mitsuru Mimori
发明人： Kiyono Ikenaka , Mitsuru Mimori
IPC分类号： G11B7/00
CPC分类号： G11B7/1392 , G11B7/1275 , G11B7/1353 , G11B7/1374 , G11B2007/0006
摘要： An optical pickup device, comprises light sources to emit a first light flux having a wavelength λ1 (380 nm

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