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71. 再颁专利

USRE41455E1 Objective lens for optical disks having different thicknesses 有权
标题翻译：具有不同厚度的光盘的物镜
公开(公告)号：USRE41455E1
公开(公告)日：2010-07-27
申请号：US11076588
申请日：2005-03-10
申请人： Yoshiaki Komma , Sadao Mizuno , Seiji Nishino
发明人： Yoshiaki Komma , Sadao Mizuno , Seiji Nishino
IPC分类号： G02B5/32 , G02B7/00 , G02B3/10 , G02B3/08
CPC分类号： G02B5/1895 , G02B3/10 , G02B5/18 , G02B5/1814 , G02B5/1842 , G02B5/1871 , G02B5/1876 , G02B5/32 , G02B21/025 , G02B21/18 , G02B21/20 , G02B27/4238 , G03F9/70 , G03F9/7049 , G03F9/7069 , G03F9/7088 , G11B7/08511 , G11B7/131 , G11B7/1353 , G11B7/1374 , G11B7/139 , G11B19/12 , G11B19/127 , G11B2007/0006 , G11B2007/13727
摘要： A compound objective lens is composed of a hologram lens or transmitting a part of incident light without any diffraction to form a beam of transmitted light and diffracting a remaining part of the incident light to form a beam of first-order diffracted light, and an objective lens for converging the transmitted light to form a first converging spot on a front surface of a thin type of first information medium and converging the diffracted light to form a second converging spot on a front surface of a thick type of second information medium. Because the hologram selectively functions as a concave lens for the diffracted light, a curvature of the transmitted light differs from that of the diffracted light. Therefore, even though the first and second information mediums have different thicknesses, the transmitted light incident on rear surface of the first information medium is converged on the its front surface, and the diffracted light incident on a rear surface of the second information medium is converged on the its front surface. That is, the compound objective lens has two focal points.
摘要翻译：复合物镜由全息透镜构成或透射入射光的一部分而没有任何衍射形成透射光束，衍射入射光的剩余部分以形成一级衍射光束，目标透镜，用于会聚透射光以在薄型第一信息介质的前表面上形成第一会聚点，并且会聚衍射光以在厚型第二信息介质的前表面上形成第二会聚点。由于全息图有选择地用作衍射光的凹透镜，透射光的曲率与衍射光的曲率不同。因此，即使第一信息介质和第二信息介质具有不同的厚度，入射在第一信息介质的后表面上的透射光会聚在其前表面上，并且入射在第二信息介质的后表面上的衍射光会聚在其前面。也就是说，复合物镜具有两个焦点。

72. 发明授权

US07738343B2 Optical disk device and information recording/reproducing method 有权
标题翻译：光盘装置和信息记录/再现方法
公开(公告)号：US07738343B2
公开(公告)日：2010-06-15
申请号：US11386381
申请日：2006-03-22
申请人： Yoshiaki Komma , Hidenori Wada , Seiji Nishino
发明人： Yoshiaki Komma , Hidenori Wada , Seiji Nishino
IPC分类号： G11B7/00
CPC分类号： G11B7/1369 , G11B7/08511 , G11B7/1378 , G11B7/13925 , G11B7/13927 , G11B2007/0013 , G11B2007/13727
摘要： An optical disk device is provided with an optical pickup that includes a convergent optical system having an objective lens for converging a light beam emitted from the laser light source to form a microspot on an optical disk and an aberration correcting optical system for controlling a spherical aberration of the convergent optical system, and performs information recording or reproduction with respect to a multi-layer optical disk having at least a first recording layer and a second recording layer. In the optical disk device, an operation of changing a correction quantity of the spherical aberration from a value adequate for the first recording layer to a predetermined value is started before an operation of moving a focus position of the microspot from the first layer to the second layer is completed. This allows a focus control to be performed stably with respect to the second recording layer in a state in which the spherical aberration correction already has been carried out, thereby preventing the focus control from failing due to an unsuccessful interlayer jump.
摘要翻译：光盘装置具有光学拾取器，该光学拾取器包括会聚光学系统，该会聚光学系统具有用于会聚从激光光源发射的光束以在光盘上形成微点的物镜，以及用于控制球面像差的像差校正光学系统并且对具有至少第一记录层和第二记录层的多层光盘执行信息记录或再现。在光盘装置中，将微球的聚焦位置从第一层移动到第二层的操作之前开始将球面像差的校正量从适合于第一记录层的值改变到预定值的操作层完成。这允许在已经执行球面像差校正的状态下相对于第二记录层稳定地执行聚焦控制，从而防止聚焦控制由于不成功的层间跳跃而失败。

73. 发明授权

US07480227B2 Optical head device and optical information apparatus using the same 有权
标题翻译：光头装置及其使用的光信息装置
公开(公告)号：US07480227B2
公开(公告)日：2009-01-20
申请号：US11443750
申请日：2006-05-31
申请人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
发明人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1398 , G11B7/1353 , G11B7/1367 , G11B7/1372 , G11B7/1378 , G11B7/13922 , G11B7/13925
摘要： An optical head device includes a focusing optical system for focusing a laser beam emitted from a semiconductor laser light source on an optical information medium with an objective lens. A chromatic aberration correction element for correcting chromatic aberration occurring in the objective lens is provided between the semiconductor laser light source and the optical information medium. A light distribution correction element in which the transmittance increases with the distance from the center of the aperture surface of the objective lens is provided so as to correct a reduction of the intensity of the light incident on the aperture surface of the objective lens with the distance from the center of the aperture surface.
摘要翻译：光头装置包括聚焦光学系统，用于将从半导体激光光源发射的激光束聚焦在具有物镜的光信息介质上。在半导体激光光源和光信息介质之间设置用于校正物镜中出现的色像差的色像差校正元件。提供透光率随着距离物镜的孔径表面的中心的距离而增加的光分布校正元件，以便校正入射到物镜的孔表面上的光的强度的降低，距离从孔表面的中心。

74. 发明申请

US20060246376A1 Information recording medium, recording/reproducing method for the same, and information recording/reproducing apparatus 审中-公开
标题翻译：信息记录介质，其记录/再现方法和信息记录/再现装置
公开(公告)号：US20060246376A1
公开(公告)日：2006-11-02
申请号：US10558131
申请日：2004-05-25
申请人： Seiji Nishino
发明人： Seiji Nishino
IPC分类号： G11B7/24
CPC分类号： B82Y10/00 , G03C1/733 , G11B7/0045 , G11B7/24038 , G11B7/245 , Y10T428/21
摘要： An information recording medium includes a recording layer, in which information is recorded by two-photon absorption that occurs when recording light is focused on the recording layer. The recording layer (211, 212) contains a photosensitive polymer that includes a principal chain containing acrylate or methacrylate and a first side chain and a second side chain branched from the principal chain. The first side chain undergoes a cis-trans isomerization reaction upon absorption of the recording light, and the second side chain has a property of being oriented in about the same direction as a direction of the first side chain when the first side chain undergoes the cis-trans isomerization reaction.
摘要翻译：信息记录介质包括记录层，其中当记录光聚焦在记录层上时，通过双光子吸收记录信息。记录层（211,212）含有包含丙烯酸酯或甲基丙烯酸酯的主链和从主链分支的第一侧链和第二侧链的感光性聚合物。第一侧链在吸收记录光时经历顺反异构化反应，第二侧链具有在第一侧链经历顺式反应时沿与第一侧链方向大致相同的方向取向的性质反式异构化反应。

75. 发明授权

US07110342B2 Optical head device and optical information apparatus using the same 有权
公开(公告)号：US07110342B2
公开(公告)日：2006-09-19
申请号：US10264297
申请日：2002-10-02
申请人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
发明人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1398 , G11B7/1353 , G11B7/1367 , G11B7/1372 , G11B7/1378 , G11B7/13922 , G11B7/13925
摘要： An optical head device includes a focusing optical system for focusing a laser beam emitted from a semiconductor laser light source on an optical information medium with an objective lens. A chromatic aberration correction element for correcting chromatic aberration occurring in the objective lens is provided between the semiconductor laser light source and the optical information medium. A light distribution correction element in which the transmittance increases with the distance from the center of the aperture surface of the objective lens is provided so as to correct a reduction of the intensity of the light incident on the aperture surface of the objective lens with the distance from the center of the aperture surface.

76. 发明授权

US06967916B2 Optical head apparatus, optical information recording and reproducing apparatus, method for detecting aberration and method for adjusting optical head apparatus 有权
标题翻译：光头装置，光信息记录和再现装置，用于检测像差的方法和调整光头装置的方法
公开(公告)号：US06967916B2
公开(公告)日：2005-11-22
申请号：US09975396
申请日：2001-10-10
申请人： Kousei Sano , Shin-ichi Kadowaki , Yoshiaki Komma , Seiji Nishino , Katsuhiko Yasuda , Akihiro Yasuda
发明人： Kousei Sano , Shin-ichi Kadowaki , Yoshiaki Komma , Seiji Nishino , Katsuhiko Yasuda , Akihiro Yasuda
IPC分类号： G11B7/09 , G11B7/13 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0908 , G11B7/0909 , G11B7/131 , G11B7/1378 , G11B7/13927
摘要： An optical head apparatus capable of stably obtaining a detection signal of spherical aberration even with a high density optical disk. A spherical aberration error signal is obtained by: dividing the returning light from the optical disk into a transmitted light and a diffracted light; reproducing information with the transmitted light having a larger amount of light while dividing the diffracted light having a small amount of light into two regions, i.e., region near the optical axis and a region distant from the optical axis; determining amounts of focus deviation in respective regions as focus error signals; and taking the difference signal therebetween. Thus, it is possible to detect the amount of spherical aberration with the SN ratio of the information reproducing signal kept at high level.
摘要翻译：即使使用高密度光盘也能够稳定地获得球面像差的检测信号的光学头装置。通过以下方式获得球面像差误差信号：将来自光盘的返回光分成透射光和衍射光; 将具有较大光量的透射光再现信息，同时将具有少量光的衍射光分成两个区域，即靠近光轴的区域和远离光轴的区域; 确定各个区域中的聚焦偏差量作为聚焦误差信号; 并在其间取差分信号。因此，可以以保持在高电平的信息再现信号的SN比来检测球面像差的量。

77. 发明授权

US5293038A Optical pick-up head apparatus wherein hollographic optical element and photodetector are formed on semiconductor substrate 失效
标题翻译：其中全息光学元件和光电探测器形成在半导体衬底上的光学拾取头装置
公开(公告)号：US5293038A
公开(公告)日：1994-03-08
申请号：US35777
申请日：1993-03-23
申请人： Shinichi Kadowaki , Yoshiaki Komma , Seiji Nishino
发明人： Shinichi Kadowaki , Yoshiaki Komma , Seiji Nishino
IPC分类号： G11B7/085 , G11B7/09 , G11B7/12 , G11B7/135 , H01J3/14
CPC分类号： G11B7/1353 , G11B7/123
摘要： An optical pick-up head apparatus to be used for recording and reproducing or erasing optical information on and from an optical storage medium. The head apparatus comprises a semiconductor laser source, a reflector, a reflection type holographic optical element and a photodetector. A laser beam emitted from the semiconductor laser source is incident through the reflector on the reflection type holographic optical element so as to be incident through an objective lens on the optical storage medium. The laser beam reflected and diffracted on the optical storage medium advances along the same path in the opposite direction to be incident on the reflection type holographic optical element to become diffraction beams. The diffraction beams are incident on the photodetector after being reflected on the reflector so as to obtain a focusing error signal, tracking error signal and information signal. The reflection type holographic optical element and the photodetector are formed on one semiconductor substrate, and the semiconductor laser source is disposed to be close to the photodetector on the semiconductor substrate. Due to this arrangement, the head apparatus can easily and accurately be assembled without the positional adjustment of the reflection type holographic optical element or the photodetector, thereby improving the mass productivity of the head apparatus.
摘要翻译：一种用于在光学存储介质上记录和再现或擦除光学信息的光学拾取头装置。头装置包括半导体激光源，反射器，反射型全息光学元件和光电检测器。从半导体激光源发射的激光束通过反射型入射到反射型全息光学元件上，从而通过光学存储介质上的物镜入射。在光存储介质上反射和衍射的激光束沿相反方向前进，入射到反射型全息光学元件上，成为衍射光束。衍射光束在反射器上反射后入射到光电检测器上，以获得聚焦误差信号，跟踪误差信号和信息信号。反射型全息光学元件和光电检测器形成在一个半导体衬底上，并且半导体激光源设置成靠近半导体衬底上的光电检测器。由于这种布置，头部装置可以容易且准确地组装而不需要反射型全息光学元件或光电检测器的位置调整，从而提高了头部装置的批量生产率。

78. 发明授权

US5283771A Optical pickup head 失效
标题翻译：光学拾音头
公开(公告)号：US5283771A
公开(公告)日：1994-02-01
申请号：US666768
申请日：1991-03-08
申请人： Shinichi Kadowaki , Yoshiaki Komma , Seiji Nishino
发明人： Shinichi Kadowaki , Yoshiaki Komma , Seiji Nishino
IPC分类号： G11B7/12 , G11B7/13 , G11B7/135 , H01L31/12 , H01S5/00
CPC分类号： G11B7/131 , G11B7/123 , G11B7/1353
摘要： In an optical pickup head, a light source emits a light beam. A first reflecting section reflects the light beam emitted from the light source and changes a direction of a travel of the light beam emitted from the light source. A second reflecting section reflects the light beam and changes a direction of a travel of the light beam after the light beam is reflected by the first reflecting section. The light beam reflected by the second reflecting section is focused on the optical recording medium. The light beam is reflected and diffracted by the optical recording medium. The light beam reflected and diffracted by the optical recording medium is detected. A common support member is formed with both the first and second reflecting sections.
摘要翻译：在光拾取头中，光源发射光束。第一反射部分反射从光源发射的光束并改变从光源发射的光束的行进方向。第二反射部分反射光束并且在光束被第一反射部分反射之后改变光束的行进方向。由第二反射部反射的光束聚焦在光记录介质上。光束被光学记录介质反射和衍射。检测由光记录介质反射和衍射的光束。共同的支撑构件与第一和第二反射部分形成。

79. 发明申请

US20060233071A1 Optical head device and optical information apparatus using the same 有权
公开(公告)号：US20060233071A1
公开(公告)日：2006-10-19
申请号：US11443750
申请日：2006-05-31
申请人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
发明人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1398 , G11B7/1353 , G11B7/1367 , G11B7/1372 , G11B7/1378 , G11B7/13922 , G11B7/13925
摘要： An optical head device includes a focusing optical system for focusing a laser beam emitted from a semiconductor laser light source on an optical information medium with an objective lens. A chromatic aberration correction element for correcting chromatic aberration occurring in the objective lens is provided between the semiconductor laser light source and the optical information medium. A light distribution correction element in which the transmittance increases with the distance from the center of the aperture surface of the objective lens is provided so as to correct a reduction of the intensity of the light incident on the aperture surface of the objective lens with the distance from the center of the aperture surface.

80. 发明授权

US06954417B2 Optical disk device and information recording/reproducing method 有权
标题翻译：光盘装置和信息记录/再现方法
公开(公告)号：US06954417B2
公开(公告)日：2005-10-11
申请号：US09946645
申请日：2001-09-04
申请人： Yoshiaki Komma , Hidenori Wada , Seiji Nishino
发明人： Yoshiaki Komma , Hidenori Wada , Seiji Nishino
IPC分类号： G11B7/00 , G11B7/085 , G11B7/135
CPC分类号： G11B7/1369 , G11B7/08511 , G11B7/1378 , G11B7/13925 , G11B7/13927 , G11B2007/0013 , G11B2007/13727
摘要： An optical disk device is provided with an optical pickup that includes a convergent optical system having an objective lens for converging a light beam emitted from the laser light source to form a microspot on an optical disk and an aberration correcting optical system for controlling a spherical aberration of the convergent optical system, and performs information recording or reproduction with respect to a multi-layer optical disk having at least a first recording layer and a second recording layer. In the optical disk device, an operation of changing a correction quantity of the spherical aberration from a value adequate for the first recording layer to a predetermined value is started before an operation of moving a focus position of the microspot from the first layer to the second layer is completed. This allows a focus control to be performed stably with respect to the second recording layer in a state in which the spherical aberration correction already has been carried out, thereby preventing the focus control from failing due to an unsuccessful interlayer jump.
摘要翻译：光盘装置具有光学拾取器，该光学拾取器包括会聚光学系统，该会聚光学系统具有用于会聚从激光光源发射的光束以在光盘上形成微点的物镜，以及用于控制球面像差的像差校正光学系统并且对具有至少第一记录层和第二记录层的多层光盘执行信息记录或再现。在光盘装置中，将微球的聚焦位置从第一层移动到第二层的操作之前开始将球面像差的校正量从适合于第一记录层的值改变到预定值的操作层完成。这允许在已经执行球面像差校正的状态下相对于第二记录层稳定地执行聚焦控制，从而防止聚焦控制由于不成功的层间跳跃而失败。

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