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1.发明授权公开(公告)号：US07554675B2
公开(公告)日：2009-06-30
申请号：US10548838
申请日：2003-11-17
IPC分类号： G01B9/02
CPC分类号： G11B7/22 , G01J9/02 , G11B7/1359 , G11B7/1367 , G11B7/1376 , G11B7/1381 , G11B7/1392 , G11B7/13927
摘要： A light wavefront measuring apparatus (2, 2a, 42) includes a separating element (7a, 47a) for separating a flux of light which exits from an optical head (1, 31) into a first beam and a second beam, a first interference fringe display section (21, 21a) for displaying interference fringes formed from the first beam, a Dove prism (13, 53) for rotating a wavefront of the second beam around its optical axis (AX2), and a second interference fringe display section (22, 22a) for displaying interference fringes formed from the second beam which passed through it. In adjustment of the light source device, position of a collimator (5) in the optical head (1, 31) is adjusted in optical axis direction so as to approximate the interference fringe patterns displayed in the interference fringe display sections (21, 22, 21a, 22a) each other.
摘要翻译： 光波前测量装置（2,2a，42）包括分离元件（7a，47a），用于将从光头（1,31）射出的光束分离成第一光束和第二光束，第一干涉 用于显示由第一光束形成的干涉条纹的边缘显示部分（21,21a），用于旋转围绕其光轴（AX2）的第二光束的波前的Dove棱镜（13,53）和第二干涉条纹显示部分 22,22a），用于显示由通过它的第二光束形成的干涉条纹。 在光源装置的调整中，在光头（1,31）中的准直仪（5）的位置在光轴方向上调整为近似于在干涉条纹显示部（21,22）中显示的干涉条纹图案， 21a，22a）。
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2.发明申请公开(公告)号：US20060227335A1
公开(公告)日：2006-10-12
申请号：US10548838
申请日：2003-11-17
IPC分类号： G01B9/02
CPC分类号： G11B7/22 , G01J9/02 , G11B7/1359 , G11B7/1367 , G11B7/1376 , G11B7/1381 , G11B7/1392 , G11B7/13927
摘要： A light wavefront measuring apparatus (2, 2a, 42) includes a separating element (7a, 47a) for separating a flux of light which exits from an optical head (1, 31) into a first beam and a second beam, a first interference fringe display section (21, 21a) for displaying interference fringes formed from the first beam, a Dove prism (13, 53) for rotating a wavefront of the second beam around its optical axis (AX2), and a second interference fringe display section (22, 22a) for displaying interference fringes formed from the second beam which passed through it. In adjustment of the light source device, position of a collimator (5) in the optical head (1, 31) is adjusted in optical axis direction so as to approximate the interference fringe patterns displayed in the interference fringe display sections (21, 22, 21a, 22a) each other.
摘要翻译： 光波前测量装置（2,2a，42）包括分离元件（7a，47a），用于将从光头（1,31）射出的光束分离成第一光束和第二光束， 用于显示由第一光束形成的干涉条纹的第一干涉条纹显示部分（21,21a），用于使第二光束的波前绕其光轴旋转的道威斯棱镜（13,53） SUB>）和第二干涉条纹显示部分（22,22a），用于显示由穿过它的第二光束形成的干涉条纹。 在光源装置的调整中，在光头（1,31）中的准直仪（5）的位置在光轴方向上调整为近似于在干涉条纹显示部（21,22）中显示的干涉条纹图案， 21 a，22 a）彼此。
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公开(公告)号：US08891342B2
公开(公告)日：2014-11-18
申请号：US14362865
申请日：2012-10-11
IPC分类号： G11B7/00 , G11B7/13 , G11B7/09 , G11B7/1353
CPC分类号： G11B7/1353 , G11B7/0901 , G11B2007/0013
摘要： An optical component, a hologram, and a photodetector are configured in an optical head device of an optical disc device such that a +1-order beam or a −1-order beam of diffracted light generated from light reflected from an information track in the intended information recording layer strikes the interior of the light-receiving surfaces of the tracking error detection light-receiving sections, a +1-order beam or a −1-order beam of diffracted light generated from light reflected from an information track in an information recording layer one layer deeper than the intended information recording layer strikes outside the light-receiving sections, and a +1-order beam or a −1-order beam of diffracted light that is generated from light reflected from an information track in an information recording layer one layer shallower than the intended information recording layer strikes outside the light-receiving sections.
摘要翻译： 光学元件，全息图和光电检测器被配置在光盘装置的光学头装置中，使得从在光盘装置中的信息轨道反射的光产生的+ 1级光束或-1级衍射光束 目标信息记录层撞击跟踪误差检测光接收部分的光接收表面的内部，从信息中的信息轨迹反射的光产生的+ 1级光束或-1级衍射光束 比预期的信息记录层更深一层的记录层撞击光接收部分外部，以及从信息记录中从信息轨道反射的光产生的+1级光束或-1级衍射光束 比预期的信息记录层浅的层1撞击光接收部分。
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公开(公告)号：US20110211429A1
公开(公告)日：2011-09-01
申请号：US13034735
申请日：2011-02-25
IPC分类号： G11B7/125
CPC分类号： G11B7/1275 , G11B7/1362 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup device includes a plurality of laser light sources emitting laser beams of different oscillation wavelengths, and a plurality of objective lenses on which the laser beams in the form of diverging beams emitted by the plurality of laser light sources are incident, and which directly focus the laser beams onto a recording surface of an optical disc. A rising mirror reflects a laser beam in the form of a diverging beam emitted by a laser light source of a predetermined oscillation wavelength among the plurality of laser light sources so as to lead the laser beam to one of the plurality of objective lenses, and transmits the laser beam in the form of a diverging beam emitted by the other laser light source. As the rising mirror transmits the laser beam in the form of the diverging beam emitted by said other laser light source, astigmatism is generated so as to correct existing astigmatism of the laser beam emitted by said other laser light source.
摘要翻译： 光拾取装置包括发射不同振荡波长的激光束的多个激光光源和由多个激光光源发射的发散光束形式的激光束入射的多个物镜，并且直接 将激光束聚焦到光盘的记录表面上。 上升反射镜反射出由多个激光源中的预定振荡波长的激光源发射的发散光束的形式的激光束，以将激光束引导到多个物镜中的一个，并传输 由另一激光光源发射的发散光束形式的激光束。 随着上升反射镜以由所述其它激光光源发射的发散光束的形式传输激光束，产生散光，以校正由所述其它激光光源发射的激光束的现有像散。
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公开(公告)号：US20130279319A1
公开(公告)日：2013-10-24
申请号：US13978486
申请日：2011-12-05
IPC分类号： G11B7/1374
CPC分类号： G11B7/1374 , G11B7/08 , G11B7/0935 , G11B7/123 , G11B7/1275 , G11B7/135 , G11B7/1356 , G11B7/1378 , G11B7/13925 , G11B2007/0006
摘要： An optical pickup device moves in a feed direction parallel to a radial direction of an optical disc rotating on an axis of rotation, and records or reproduces information on an information recording surface of the optical disc. The optical pickup device has a first light source that emits light of a first wavelength, a second light source that emits light of a second wavelength differing from the first wavelength, a first objective lens for focusing the light from the first light source onto the information recording surface, and a second objective lens for focusing the light from the second light source onto the information recording surface. The first and second objective lenses and the first light source are disposed in a plane that passes through the axis of rotation and is parallel to the feed direction.
摘要翻译： 光拾取装置沿与旋转轴线旋转的光盘的径向平行的进给方向移动，并将信息记录在光盘的信息记录面上。 光拾取装置具有发射第一波长的光的第一光源，发射与第一波长不同的第二波长的光的第二光源，用于将来自第一光源的光聚焦到信息上的第一物镜 记录表面和用于将来自第二光源的光聚焦到信息记录表面上的第二物镜。 第一和第二物镜和第一光源设置在穿过旋转轴线并平行于进给方向的平面中。
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6.发明申请公开(公告)号：US20110271291A1
公开(公告)日：2011-11-03
申请号：US13142403
申请日：2010-02-04
IPC分类号： G11B17/04
CPC分类号： G11B19/128
摘要： An optical disc device compatible with optical discs of different types having different track pitches, having a light detecting means (104) disposed in the path of diffracted light from the recording tracks on the optical disc (101), on which a light beam from a light emitting section (103) is incident. During the loading of the optical disc, the optical disc device discriminates the type of optical disc from the detection output of the light detecting means (104) and the positional relation between the optical disc (101) and the light detecting means (104). A simple structure thus enables the optical disc type to be discriminated.
摘要翻译： 一种与具有不同轨道间距的不同类型的光盘兼容的光盘装置，具有设置在来自光盘（101）上的记录轨道的衍射光的路径中的光检测装置（104），光检测装置 发光部（103）入射。 在光盘装入期间，光盘装置鉴别光检测装置（104）的检测输出和光盘（101）与光检测装置（104）之间的位置关系。 因此，简单的结构使得能够区分光盘类型。
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7.发明申请OPTICAL DISC REPRODUCING LIGHT QUANTITY SETTING METHOD AND OPTICAL DISC APPARATUS 审中-公开光盘再现轻量化设置方法和光盘设备公开(公告)号：US20100110866A1
公开(公告)日：2010-05-06
申请号：US12596075
申请日：2008-03-31
申请人： Nobuo Takeshita , Toshiya Matozaki
发明人： Nobuo Takeshita , Toshiya Matozaki
IPC分类号： G11B7/135
CPC分类号： G11B7/1267
摘要： In a method of setting a quantity of light directed onto an optical disc for reproduction purposes, an area of the optical disc in which information has been recorded is reproduced with a test-reproducing light quantity (S14, S24), a reproduction time or number of reproductions up to the time when the reproduced signal quality value reaches a prescribed value is determined (S20, S30), and the quantity of reproducing light used in regular reproduction is set by performing calculations with the determined value (S32). The state in which recorded marks have significantly degraded can also be detected, and degradation of the recorded marks to the unreproducible state can be avoided.
摘要翻译： 在为了再现目的而设置指向光盘的光量的方法中，以测试再现光量（S14，S24），再现时间或数字再现记录有信息的光盘的区域 确定再现信号质量值达到规定值时的再现次数（S20，S30），通过利用确定值进行计算来设定常规重放中使用的再现光量（S32）。 也可以检测记录标记显着劣化的状态，并且可以避免记录标记的劣化到不可再生状态。
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公开(公告)号：US07701812B2
公开(公告)日：2010-04-20
申请号：US11703738
申请日：2007-02-08
申请人： Nobuo Takeshita , Toshiya Matozaki , Keiji Nakamura , Mitoru Yabe
发明人： Nobuo Takeshita , Toshiya Matozaki , Keiji Nakamura , Mitoru Yabe
IPC分类号： G11B7/00
CPC分类号： G11B7/0932 , G02B7/023 , G02B7/026 , G02B7/08 , G11B7/0933 , G11B7/0935 , G11B2007/0006
摘要： An optical element driving apparatus includes a holder that holds a plurality of switchable optical elements for focusing light on a recording medium, a resiliently deformable supporting unit that supports the holder, a focusing driving unit that drives the holder in a direction of optical axes of the optical elements, and a tracking driving unit that drives the holder in a tracking direction perpendicular to the direction of the optical axes. The switching of the optical elements is performed by moving the holder by means of the tracking driving unit, so as to select one of the optical elements that focuses light on the recording medium.
摘要翻译： 光学元件驱动装置包括：保持器，其保持用于将光聚焦在记录介质上的多个可切换光学元件;支撑保持器的可弹性变形的支撑单元;聚焦驱动单元，沿着所述光轴的方向驱动保持器; 光学元件和跟踪驱动单元，其沿着与光轴方向垂直的跟踪方向驱动保持器。 通过利用跟踪驱动单元移动保持器来执行光学元件的切换，以便选择将光聚焦在记录介质上的一个光学元件。
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公开(公告)号：US20080192365A1
公开(公告)日：2008-08-14
申请号：US11703738
申请日：2007-02-08
申请人： Nobuo Takeshita , Toshiya Matozaki , Keiji Nakamura , Mitoru Yabe
发明人： Nobuo Takeshita , Toshiya Matozaki , Keiji Nakamura , Mitoru Yabe
IPC分类号： G02B7/02
CPC分类号： G11B7/0932 , G02B7/023 , G02B7/026 , G02B7/08 , G11B7/0933 , G11B7/0935 , G11B2007/0006
摘要： An optical element driving apparatus includes a holder that holds a plurality of switchable optical elements for focusing light on a recording medium, a resiliently deformable supporting unit that supports the holder, a focusing driving unit that drives the holder in a direction of optical axes of the optical elements, and a tracking driving unit that drives the holder in a tracking direction perpendicular to the direction of the optical axes. The switching of the optical elements is performed by moving the holder by means of the tracking driving unit, so as to select one of the optical elements that focuses light on the recording medium.
摘要翻译： 光学元件驱动装置包括：保持器，其保持用于将光聚焦在记录介质上的多个可切换光学元件;支撑保持器的可弹性变形的支撑单元;聚焦驱动单元，沿着所述光轴的方向驱动保持器; 光学元件和跟踪驱动单元，其沿着与光轴方向垂直的跟踪方向驱动保持器。 通过利用跟踪驱动单元移动保持器来执行光学元件的切换，以便选择将光聚焦在记录介质上的一个光学元件。
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公开(公告)号：US08787137B2
公开(公告)日：2014-07-22
申请号：US13978160
申请日：2012-01-17
IPC分类号： G11B7/135
CPC分类号： G11B7/13927 , G11B7/1362 , G11B7/1376 , G11B2007/0013
摘要： An optical pickup device includes a laser light source 201, a collimating optical system 202 for converting laser light to parallel light, a focusing optical system 205 for focusing the parallel light onto an optical disc, a light detection unit for receiving returning light returning by reflection of the focused light from the optical disc 101 and outputting a detection signal, and a reflecting mirror 204 disposed between the collimating optical system and the focusing optical system. The reflecting mirror 204 has a reflective surface including three regions having different reflectances. The central region on the reflecting surface meets the other two regions, at positions illuminated by the light focused by the light focusing optical system, in boundary lines that are parallel to a radial direction on the optical disc 101. The reflectance of the central region is lower than the reflectances of the other two regions.
摘要翻译： 光拾取装置包括激光源201，用于将激光转换为平行光的准直光学系统202，用于将平行光聚焦到光盘上的聚焦光学系统205，用于接收通过反射返回的返回光的光检测单元 来自光盘101的聚焦光并输出检测信号，反射镜204设置在准直光学系统和聚焦光学系统之间。 反射镜204具有包括具有不同反射率的三个区域的反射表面。 反射表面上的中心区域与由光聚焦光学系统聚焦的光照射的位置处在与光盘101上的径向平行的边界线处的另外两个区域相交。中心区域的反射率为 低于其他两个地区的反射率。
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