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1.发明授权Optical pickup having radially arranged lenses in a low profile construction 有权光拾取器具有处于低轮廓结构的径向布置的透镜公开(公告)号：US07733760B2
公开(公告)日：2010-06-08
申请号：US11712184
申请日：2007-02-27
IPC分类号： G11B7/00
CPC分类号： G11B7/1376 , G11B2007/0006
摘要： An optical pickup includes a first source which emits a first beam with a first wavelength; a second source which emits a second beam with a wavelength shorter than the first wavelength; a first collimates lens which collimates the first beam; a second collimate lens which collimates the second beam; a first objective lens which converges the first collimated beam onto an optical disc; and a second objective lens which converges the second collimated beam onto the disc. The first and second objective lenses are arranged in the disc radial direction. The second objective lens is arranged closer to the side of the disc outer circumference than the first objective lens. The first collimate lens is arranged on the right-hand side when the second objective lens is viewed from the first objective lens. The second collimate lens is arranged on the left-hand side when the first objective lens is viewed from the second objective lens. The gap between the first collimate lens and the first objective lens is larger than the gap between the second collimate lens and the second objective lens.
摘要翻译： 光拾取器包括：发射具有第一波长的第一光束的第一光源; 发射波长短于第一波长的第二光束的第二光源; 准直第一光束的第一准直透镜; 准直第二光束的第二准直透镜; 将第一准直光束会聚到光盘上的第一物镜; 以及将第二准直光束会聚到盘上的第二物镜。 第一和第二物镜被配置在盘径向。 第二物镜比第一物镜更靠近盘外周侧。 当从第一物镜观察第二物镜时，第一准直透镜布置在右手侧。 当从第二物镜观察第一物镜时，第二准直透镜布置在左手侧。 第一准直透镜和第一物镜之间的间隙大于第二准直透镜和第二物镜之间的间隙。
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公开(公告)号：US20090268584A1
公开(公告)日：2009-10-29
申请号：US12497966
申请日：2009-07-06
IPC分类号： G11B7/135
CPC分类号： G11B7/133 , G11B7/0901 , G11B7/0906 , G11B7/094 , G11B7/0943 , G11B7/131 , G11B7/1353 , G11B7/1381 , G11B2007/0013
摘要： An optical pickup apparatus is provided with a dividing element having a plurality of regions. The dividing element is capable of dividing a light flux reflected by the optical disc into a plurality of light fluxes having different outgoing directions. Each region of the dividing element and light receiving parts of a light detector are structured such that when a target information recording layer of the optical disc is brought into focus, a light flux reflected from the target information recording layer is focused on the light receiving parts of the light detector, and a light flux reflected from other information recording layer than the target information recording layer is not irradiated onto the light receiving parts of the light detector.
摘要翻译： 光拾取装置具有多个区域的分割元件。 分割元件能够将由光盘反射的光束分成具有不同输出方向的多个光束。 分光元件的各个区域和光检测器的受光部分被构造为使得当光盘的目标信息记录层被聚焦时，从目标信息记录层反射的光束聚焦在光接收部分 并且从目标信息记录层的其它信息记录层反射的光束不被照射到光检测器的光接收部分上。
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3.发明授权Information recording apparatus, information recording medium and information recording medium 失效信息记录装置，信息记录介质和信息记录方法公开(公告)号：US07542396B2
公开(公告)日：2009-06-02
申请号：US11209648
申请日：2005-08-24
申请人： Motoyasu Terao , Toshimasa Kamisada , Shinichi Nakatsuka , Takeshi Shimano , Hitoshi Ishii , Kazuhiro Soga , Yoshiaki Ogino
发明人： Motoyasu Terao , Toshimasa Kamisada , Shinichi Nakatsuka , Takeshi Shimano , Hitoshi Ishii , Kazuhiro Soga , Yoshiaki Ogino
IPC分类号： G11B7/00
CPC分类号： G11B7/1367 , G11B7/0938 , G11B7/127 , G11B2007/0009
摘要： To achieve stable, high capacity, high speed recording. Of two light beams emitted from a light irradiation means, one or two beams are made pass through an optical path changeable member whereof at least one of the thickness and refractive index changes continuously or in two or more steps immediately after emission from the light irradiation means, so that a difference is introduced into the optical path length of the two beams, and the focusing point of one beam is made to vary to coincide with a position in the recording layer used for playback or recording. Another light beam is used for servo. Converging of light during recording or read of a multilayer recording medium is performed with higher precision than in the prior art, so higher density, higher capacity recording/playback can be performed.
摘要翻译： 要实现稳定，高容量，高速录音。 在从光照射装置发射的两束光束中，使一束或两束光束通过光路可变构件，其中厚度和折射率中的至少一个连续地或者在从光照射装置发射之后立即改变两个或更多个步骤 ，从而在两个光束的光程长度上引入差异，并且使一个光束的聚焦点变化以与用于回放或记录的记录层中的位置一致。 另一光束用于伺服。 以比现有技术更高的精度执行多层记录介质的记录或读取期间的光的会聚，因此可以执行更高密度，更高容量的记录/重放。
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公开(公告)号：US20080094949A1
公开(公告)日：2008-04-24
申请号：US11979129
申请日：2007-10-31
IPC分类号： G11B7/00
CPC分类号： G11B7/133 , G11B7/0901 , G11B7/0906 , G11B7/094 , G11B7/0943 , G11B7/131 , G11B7/1353 , G11B7/1381 , G11B2007/0013
摘要： An optical pickup apparatus includes a semiconductor laser for emitting a laser light, an objective lens for irradiating the light flux emitted from the semiconductor laser onto an optical disc, and a light detector for receiving the light flux reflected from the optical disc. The light detector has a light receiving part that comprises a region 1, a region 2, a region 3, a region 4, a region 5, a region 6 and a region 7.
摘要翻译： 光拾取装置包括用于发射激光的半导体激光器，用于将从半导体激光器发射的光束照射到光盘上的物镜，以及用于接收从光盘反射的光束的光检测器。 光检测器具有包括区域1，区域2，区域3，区域4，区域5，区域6和区域7的光接收部分。
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5.发明授权公开(公告)号：US07245574B2
公开(公告)日：2007-07-17
申请号：US10313197
申请日：2002-12-06
CPC分类号： G11B7/22 , G11B7/123 , G11B7/1376
摘要： An optical disk apparatus includes a motor to rotate an optical disk and an optical head to apply light to the optical disk. The optical head includes a light source to emit the light to be applied to the optical disk, and a collimating lens to receive and collimate the light emitted by the light source. The collimating lens has an optical axis. The optical head also includes a support wall to support the collimating lens at a particular position. The support wall is configured to provide a gap between the collimating lens and the support wall to enable the collimating lens to be adjusted from an initial position to the particular position. The adjustment involves at least a movement in a direction that is perpendicular to the optical axis of the collimating lens. The optical head further includes an objective lens that is configured to receive the light from the collimating lens in order to apply the light to the optical disk.
摘要翻译： 光盘装置包括使光盘旋转的电动机和光学头以向光盘施加光。 光头包括用于发射要施加到光盘的光的光源和用于接收和准直由光源发射的光的准直透镜。 准直透镜具有光轴。 光学头还包括用于在特定位置支撑准直透镜的支撑壁。 支撑壁被配置为在准直透镜和支撑壁之间提供间隙，以使准直透镜能够从初始位置调整到特定位置。 该调整涉及至少在垂直于准直透镜的光轴的方向上的运动。 光头还包括物镜，其被配置为接收来自准直透镜的光以将光施加到光盘。
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公开(公告)号：US20060103759A1
公开(公告)日：2006-05-18
申请号：US11116653
申请日：2005-04-27
IPC分类号： H04N5/225
CPC分类号： H04N5/2251 , H04N5/772 , H04N5/85
摘要： In order to provide an optical disk video camera capable of being reduced in dimensions inclusive of thickness, part of an optical head 10 disposed such that on a projection plane parallel to the surface of an optical disk 5, a seek motor 12 is disposed at a side opposite to a camera lens 2, with respect to the optical head 10, and such that a laser diode 18 and a holder 27 are arranged at sides opposite to the camera lens 2, with respect to an objective lens 24, is caused to overlap on the camera lens 2, on a projection plane parallel to a central axis of the camera lens 2 and perpendicular to the optical disk 5.
摘要翻译： 为了提供能够减小厚度的光盘摄像机，光学头10的一部分设置成使得在与光盘5的表面平行的投影平面上，搜索电动机12设置在 相对于光学头10相对于摄像机镜头2的一侧，并且使激光二极管18和保持器27相对于物镜24相对于相机镜头2相对于物镜24布置在相反侧 在摄像机镜头2上，在与摄像机镜头2的中心轴平行的垂直于光盘5的投影平面上。
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7.发明授权Magneto-optic disk apparatus having means for eliminating fluctuation component in reproduction magneto-optic signal 失效具有用于消除再现磁光信号中的波动分量的装置的磁光盘装置
公开(公告)号：US5668786A
公开(公告)日：1997-09-16
申请号：US634360
申请日：1996-04-18
申请人： Tohru Sasaki , Takeshi Shimano , Yoshiro Konishi , Toshimasa Kamisada , Motoyuki Suzuki , Naoki Mori , Masayuki Fukui
发明人： Tohru Sasaki , Takeshi Shimano , Yoshiro Konishi , Toshimasa Kamisada , Motoyuki Suzuki , Naoki Mori , Masayuki Fukui
IPC分类号： G11B7/13 , G11B7/135 , G11B11/105 , G11B11/00
CPC分类号： G11B7/1365 , G11B11/10515 , G11B11/10543 , G11B7/131 , G11B7/133 , G11B7/1353
摘要： A magneto-optic disk apparatus for use with a magneto-optic disk in which a recording surface made of a magneto-optic information recording medium is formed on a transparent substrate having a birefringence. The magneto-optic disk apparatus includes an optical head for performing a recording and a reproduction by a laser beam for the recording surface, and a unit for eliminating a fluctuation component occurring in a reproduction magneto-optic signal, the fluctuation component eliminating unit being arranged in a convergent light up to an analyzer in a detection optical system.
摘要翻译： 一种用于磁光盘的磁光盘装置，其中由具有双折射的透明基板上形成由磁光信息记录介质制成的记录表面。 磁光盘装置包括用于执行用于记录表面的激光束的记录和再现的光学头，以及用于消除在再现磁光信号中发生的波动分量的单元，波动分量消除单元被布置 在收敛的光下，直到检测光学系统中的分析仪。
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8.发明申请公开(公告)号：US20110299378A1
公开(公告)日：2011-12-08
申请号：US13209732
申请日：2011-08-15
IPC分类号： G11B7/135
CPC分类号： G11B7/1376 , G11B2007/0006
摘要： An optical pickup includes a first source which emits a first beam with a first wavelength; a second source which emits a second beam with a wavelength shorter than the first wavelength; a first collimate lens which collimates the first beam; a second collimate lens which collimates the second beam; a first objective lens which converges the first collimated beam onto an optical disc; and a second objective lens which converges the second collimated beam onto the disc. The first and second objective lenses are arranged in the disc radial direction. The second objective lens is arranged closer to the side of the disc outer circumference than the first objective lens. The first collimate lens is arranged on the right-hand side when the second objective lens is viewed from the first objective lens. The second collimate lens is arranged on the left-hand side when the first objective lens is viewed from the second objective lens. The gap between the first collimate lens and the first objective lens is larger than the gap between the second collimate lens and the second objective lens.
摘要翻译： 光拾取器包括：发射具有第一波长的第一光束的第一光源; 发射波长短于第一波长的第二光束的第二光源; 准直第一光束的第一准直透镜; 准直第二光束的第二准直透镜; 将第一准直光束会聚到光盘上的第一物镜; 以及将第二准直光束会聚到盘上的第二物镜。 第一和第二物镜被配置在盘径向。 第二物镜比第一物镜更靠近盘外周侧。 当从第一物镜观察第二物镜时，第一准直透镜布置在右手侧。 当从第二物镜观察第一物镜时，第二准直透镜布置在左手侧。 第一准直透镜和第一物镜之间的间隙大于第二准直透镜和第二物镜之间的间隙。
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9.发明授权Optical pick up apparatus with a single beam system and having a diffraction grating 有权具有单光束系统并具有衍射光栅的光学拾取装置公开(公告)号：US07940630B2
公开(公告)日：2011-05-10
申请号：US11979130
申请日：2007-10-31
IPC分类号： G11B7/135
CPC分类号： G11B7/133 , G11B7/0901 , G11B7/0906 , G11B7/094 , G11B7/0943 , G11B7/131 , G11B7/1353 , G11B7/1381 , G11B2007/0013
摘要： An optical pickup apparatus includes a semiconductor laser for emitting a laser light, an objective lens for irradiating the light flux emitted from the semiconductor laser onto an optical disc, and a light detector for receiving the light flux reflected from the optical disc. The light detector has a light receiving part that comprises five regions of a region 1, a region 2, a region 3, a region 4 and a region 5.
摘要翻译： 光拾取装置包括用于发射激光的半导体激光器，用于将从半导体激光器发射的光束照射到光盘上的物镜，以及用于接收从光盘反射的光束的光检测器。 光检测器具有包括区域1，区域2，区域3，区域4和区域5的五个区域的光接收部分。
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10.发明申请公开(公告)号：US20100214904A1
公开(公告)日：2010-08-26
申请号：US12776223
申请日：2010-05-07
IPC分类号： G11B7/00
CPC分类号： G11B7/1376 , G11B2007/0006
摘要： An optical pickup includes a first source which emits a first beam with a first wavelength; a second source which emits a second beam with a wavelength shorter than the first wavelength; a first collimate lens which collimates the first beam; a second collimate lens which collimates the second beam; a first objective lens which converges the first collimated beam onto an optical disc; and a second objective lens which converges the second collimated beam onto the disc. The first and second objective lenses are arranged in the disc radial direction. The second objective lens is arranged closer to the side of the disc outer circumference than the first objective lens. The first collimate lens is arranged on the right-hand side when the second objective lens is viewed from the first objective lens. The second collimate lens is arranged on the left-hand side when the first objective lens is viewed from the second objective lens. The gap between the first collimate lens and the first objective lens is larger than the gap between the second collimate lens and the second objective lens.
摘要翻译： 光拾取器包括：发射具有第一波长的第一光束的第一光源; 发射波长短于第一波长的第二光束的第二光源; 准直第一光束的第一准直透镜; 准直第二光束的第二准直透镜; 将第一准直光束会聚到光盘上的第一物镜; 以及将第二准直光束会聚到盘上的第二物镜。 第一和第二物镜被配置在盘径向。 第二物镜比第一物镜更靠近盘外周侧。 当从第一物镜观察第二物镜时，第一准直透镜布置在右手侧。 当从第二物镜观察第一物镜时，第二准直透镜布置在左手侧。 第一准直透镜和第一物镜之间的间隙大于第二准直透镜和第二物镜之间的间隙。
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