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21. 发明授权

US08009524B2 Optical pickup unit, apparatus for recording/reproducing data, method for controlling the apparatus, control method, and recording medium 失效
标题翻译：光学拾取单元，用于记录/再现数据的设备，用于控制设备的方法，控制方法和记录介质
公开(公告)号：US08009524B2
公开(公告)日：2011-08-30
申请号：US11907570
申请日：2007-10-15
申请人： Jeong Kyo Seo , In Ho Choi , Byung Hoon Min
发明人： Jeong Kyo Seo , In Ho Choi , Byung Hoon Min
IPC分类号： G11B7/00
CPC分类号： G11B7/13922 , G11B7/0956 , G11B7/121 , G11B7/1387 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup unit, an apparatus for recording/reproducing data, a control method, and a recording medium are disclosed. Each of the optical pickup unit and the recording/reproducing apparatus includes a near-field lens, and uses a high-refraction lens, conically shaped, to effectively use the near-field. Two lens units are required to be compatible with a conventional recording medium. The lens unit is designed in consideration of a distance between the recording medium and the lens, and the tilt or vibration of the lens units is controlled.
摘要翻译：公开了一种光学拾取单元，用于记录/再现数据的装置，控制方法和记录介质。光拾取单元和记录/再现设备中的每一个包括近场透镜，并且使用圆锥形的高折射透镜来有效地使用近场。需要两个透镜单元与常规记录介质兼容。考虑到记录介质和透镜之间的距离来设计透镜单元，并且控制透镜单元的倾斜或振动。

22. 发明授权

US07924687B2 Optical system for collimating elliptical light beam and optical device using the same 失效
标题翻译：用于准直椭圆光束的光学系统和使用其的光学装置
公开(公告)号：US07924687B2
公开(公告)日：2011-04-12
申请号：US11322092
申请日：2005-12-29
申请人： Wen-Hsin Sun , Wen-Ssu Chiu
发明人： Wen-Hsin Sun , Wen-Ssu Chiu
IPC分类号： G11B7/00
CPC分类号： G02B27/0955 , G02B27/30 , G11B7/1376 , G11B7/1398 , G11B2007/13727
摘要： An optical system (20) for efficiently collimating an elliptical light beam includes a light source (21), a first lens (22), a second lens (23), and a third lens (24). The light source is adapted for providing an elliptical light beam defining different diverging angles in different directions, wherein any cross-section of the elliptical light beam emitted from the light source defines a long axis and a short axis which are perpendicular to each other. The first lens, the second lens, and the third lens are used for reconfiguring the elliptical light beam, thus obtaining a round light beam having equivalent short axis and long axis, and equivalent diverging angles in both horizontal direction and vertical direction. Optical centers of the first lens, the second lens, and the third lens commonly define a common optical axis along which the elliptical light beams travels.
摘要翻译：用于有效地准直椭圆光束的光学系统（20）包括光源（21），第一透镜（22），第二透镜（23）和第三透镜（24）。光源适于提供在不同方向上限定不同发散角的椭圆形光束，其中从光源发射的椭圆光束的任何横截面限定彼此垂直的长轴和短轴。第一透镜，第二透镜和第三透镜用于重新配置椭圆光束，从而获得具有等效的短轴和长轴的圆光束以及水平方向和垂直方向上的等效发散角。第一透镜，第二透镜和第三透镜的光学中心通常限定椭圆光束沿着该共同的光轴行进。

23. 发明授权

US07885167B2 Objective lens for optical pickup apparatus, objective lens unit for optical pickup apparatus and optical pickup apparatus using the same 有权
标题翻译：用于光学拾取装置的物镜，用于光学拾取装置的物镜单元和使用该物镜的光学拾取装置
公开(公告)号：US07885167B2
公开(公告)日：2011-02-08
申请号：US11600444
申请日：2006-11-16
申请人： Kentarou Nakamura , Eiji Nomura
发明人： Kentarou Nakamura , Eiji Nomura
IPC分类号： G11B7/135
CPC分类号： G11B7/1378 , G11B7/1275 , G11B7/1374 , G11B7/13925 , G11B2007/0006 , G11B2007/13727
摘要： The present invention relates to an objective lens, an objective lens unit and an optical pickup apparatus. The objective lens is provided for an optical pickup apparatus recording or reproducing information by converging a light flux with a wavelength λ1 emitted from a light source onto an information recording surface of an optical information recording medium. The objective lens is formed of: a single lens having at least one aspheric surface. In the objective lens, an effective aperture, a thickness on an optical axis, a focal length, a numerical aperture, and a refractive index satisfy the predetermined conditional expressions. The objective lens unit is provided for an optical pickup apparatus and includes an aberration correcting element and the objective lens.
摘要翻译：本发明涉及物镜，物镜单元和光拾取装置。物镜设置用于通过将从光源发射的波长λ1的光束会聚在光学信息记录介质的信息记录表面上来记录或再现信息的光学拾取装置。物镜由具有至少一个非球面的单透镜形成。在物镜中，有效孔径，光轴上的厚度，焦距，数值孔径和折射率满足预定的条件表达式。物镜单元被提供用于光学拾取装置，并且包括像差校正元件和物镜。

24. 发明申请

US20110007613A1 OPTICAL RECORDING/REPRODUCTION METHOD, OPTICAL RECORDING/REPRODUCTION DEVICE, PROGRAM, AND OPTICAL RECORDING MEDIUM 有权
标题翻译：光学记录/再现方法，光学记录/再现设备，程序和光学记录介质
公开(公告)号：US20110007613A1
公开(公告)日：2011-01-13
申请号：US12922954
申请日：2009-02-24
申请人： Eiichi Ito , Masahiro Birukawa
发明人： Eiichi Ito , Masahiro Birukawa
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B7/0956 , G11B7/1374 , G11B7/1387 , G11B7/24038 , G11B2007/13727
摘要： In optical recording and/or reproduction using an SIL optical system that performs a tilt servo using light for recording and/or reproduction, the SIL and an optical recording medium have a high probability of colliding with each other before the tilt servo is started. To prevent the collision, an optical recording/reproduction method performs a gap servo that controls a gap between a surface of an optical recording medium and a bottom surface of an SIL using reflected light that is generated from light traveling from the bottom surface of the SIL and reflecting on the optical recording medium, a focus servo that controls a distance between a focal point of the light and the bottom surface of the SIL, and a tilt servo that controls a tilt of the bottom surface of the SIL relative to the surface of the optical recording medium using the reflected light. The method includes the acts (A), (B), and (C), which are performed sequentially: (A) starting the gap servo with the gap being set larger than when optical recording and/or reproduction is performed, and shifting the focal point to an optical recording medium side from the bottom surface of the SIL, (B) starting the tilt servo, and (C) setting the gap smaller and arranging the SIL at a predetermined position.
摘要翻译：在使用使用光进行记录和/或再现的倾斜伺服的SIL光学系统的光学记录和/或再现中，SIL和光学记录介质在倾斜伺服开始之前具有相互碰撞的高概率。为了防止碰撞，光记录/再现方法执行间隙伺服，其使用从SIL的底表面行进的光产生的反射光来控制光学记录介质的表面和SIL的底表面之间的间隙并且在所述光学记录介质上反射控制所述光的焦点与所述SIL的底表面之间的距离的聚焦伺服机构以及控制所述SIL的底面相对于所述SIL的表面的倾斜的倾斜伺服机构使用反射光的光记录介质。该方法包括顺序执行的动作（A），（B）和（C）：（A）启动间隙伺服，其间隙被设定为大于执行光学记录和/或再现时的间隙伺服，焦点从SIL的底表面到光记录介质侧，（B）启动倾斜伺服，和（C）将间隙设定得较小并将SIL布置在预定位置。

25. 发明授权

US07826152B2 Composite optical device 有权
标题翻译：复合光学器件
公开(公告)号：US07826152B2
公开(公告)日：2010-11-02
申请号：US12294345
申请日：2007-03-02
申请人： Kenji Inoue
发明人： Kenji Inoue
IPC分类号： G02B9/00 , G02B3/02
CPC分类号： G02B5/1895 , G02B3/00 , G02B3/0037 , G02B3/08 , G02B3/10 , G11B7/1353 , G11B2007/13727
摘要： A composite optical device 1 includes a first optical section 10 having an optical functional surface 11 and a second optical section 20 bonded to the first optical section 10 on the optical functional surface 11. The optical functional surface 11 includes a smooth part 13 and a concave-convex part 12 adjacent to each other, and is constructed so that a position P2, along a normal direction of the smooth part 13, of a concave bottom of the concave-convex part 12 can be closer to the center of the first optical section 10 than a position P1 along the normal direction of an end of the smooth part 13 on a side of the concave-convex part 12 in a boundary vicinity portion NR between the smooth part 13 and the concave-convex part 12.
摘要翻译：复合光学器件1包括具有光学功能表面11的第一光学部分10和在光学功能表面11上接合到第一光学部分10的第二光学部分20.光学功能表面11包括平滑部分13和凹部凸部12彼此相邻，并且构造成使得沿着平滑部13的法线方向的凹凸部12的凹入底部的位置P2可以更靠近第一光学部的中心 10处于平滑部13与凹凸部12之间的边界附近部NR中的凹凸部12侧的平滑部13的端部的法线方向的位置P1。

26. 发明申请

US20100226235A1 OPTICAL PICKUP DEVICE 失效
标题翻译：光学拾取器件
公开(公告)号：US20100226235A1
公开(公告)日：2010-09-09
申请号：US12715903
申请日：2010-03-02
申请人： Kenji Nagatomi
发明人： Kenji Nagatomi
IPC分类号： G11B7/135
CPC分类号： G11B7/1376 , G11B7/1374 , G11B2007/0013 , G11B2007/13727
摘要： An optical pickup device radiates laser light to a disc having a plurality of recording layers in a direction of lamination. The optical pickup device includes a laser light source, a collimator lens, and an objective lens. The collimator lens changes a spread angle of the laser light emitted from the laser light source. The objective lens converges the laser light having passed through the collimator lens onto the disc. With the laser light in a parallel state having passed through the collimator lens, if a distance f between the laser light source and the collimator lens and a distance L between the collimator lens and the objective lens are in a relation of f
摘要翻译：光学拾取装置将激光照射到具有层叠方向的多个记录层的盘上。光学拾取装置包括激光光源，准直透镜和物镜。准直透镜改变从激光光源发射的激光的扩展角。物镜会聚经过准直透镜的激光到光盘上。在激光通过准直透镜的平行状态下，如果激光光源与准直透镜之间的距离f与准直透镜与物镜之间的距离L为f

27. 发明授权

US07778139B2 Optical information recording/reproducing device and objective lens for the same 失效
标题翻译：光信息记录/再现装置和物镜相同
公开(公告)号：US07778139B2
公开(公告)日：2010-08-17
申请号：US11873105
申请日：2007-10-16
申请人： Daisuke Koreeda , Shuichi Takeuchi
发明人： Daisuke Koreeda , Shuichi Takeuchi
IPC分类号： G11B7/135
CPC分类号： G11B7/13922 , G11B7/1374 , G11B2007/0006 , G11B2007/13727
摘要： There is provided an objective lens used for an optical information recording/reproducing device for recording information to and/or reproducing information from two types of optical discs, by selectively using one of two types of substantially collimated light beams including first and second light beams. When wavelengths of the first and second light beams are respectively represented by λ1 (nm) and λ2 (nm), λ1
摘要翻译：提供了一种用于光信息记录/再现装置的物镜，用于通过选择性地使用包括第一和第二光束的两种类型的基本上准直的光束中的一种来从两种类型的光盘记录信息和/或再现信息。当第一和第二光束的波长分别由λ1（nm）和λ2（nm）表示时，满足λ1<λ2。物镜包括第一光学元件和由与第一光学元件不同的材料制成的第二光学元件。第一和第二光学元件通过固井表面胶合。此外，物镜被配置为满足以下条件：0.006 <{（nR·丁·2·n························（{ 2 3）+ 8×A fort 42}×f ud 1 3 + 2.29] <0.038。（1）

28. 发明授权

US07773489B2 Liquid crystal lens element and optical head device 失效
标题翻译：液晶透镜元件和光头装置
公开(公告)号：US07773489B2
公开(公告)日：2010-08-10
申请号：US11670780
申请日：2007-02-02
申请人： Kouichi Murata , Takuji Nomura , Mitsuo Oosawa , Yoshiharu Ooi , Yuzuru Tanabe
发明人： Kouichi Murata , Takuji Nomura , Mitsuo Oosawa , Yoshiharu Ooi , Yuzuru Tanabe
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G02F1/133526 , G02F1/29 , G02F2001/294 , G11B7/1369 , G11B7/1374 , G11B7/1378 , G11B7/13925 , G11B2007/0006 , G11B2007/0013 , G11B2007/13722 , G11B2007/13727
摘要： A liquid crystal lens element capable of finely adjusting focal length according to the magnitude of applied voltage, and an optical head device employing such a liquid crystal lens element, are provided.On one surface of a transparent substrate 511, a transparent electrode 513 and a concave-convex portion 517 made of a transparent material having a cross section shape approximated by a saw-tooth shape, are formed so as to constitute a plurality of annular portions, and on one surface of a transparent substrate 512, a transparent electrode 514 is formed. The transparent electrodes 513 and 514 constitute annular divided electrode segments, and division positions of the annular electrode segments are made to be agree with division positions of annular portions of the saw-tooth-shaped concave-convex portion 517 of the transparent substrate 511.
摘要翻译：提供能够根据施加电压的大小精细调整焦距的液晶透镜元件和使用这种液晶透镜元件的光学头装置。在透明基板511的一个表面上形成透明电极513和由具有接近锯齿形状的截面形状的透明材料制成的凹凸部517，以构成多个环形部分，并且在透明基板512的一个表面上形成透明电极514。透明电极513和514构成环形分割电极段，使得环形电极段的划分位置与透明衬底511的锯齿形凹凸部分517的环形部分的分割位置一致。

29. 发明申请

US20100195453A1 OPTICAL DISC DEVICE AND FOCUS CONTROL METHOD 失效
标题翻译：光盘设备和聚焦控制方法
公开(公告)号：US20100195453A1
公开(公告)日：2010-08-05
申请号：US12452672
申请日：2009-05-25
申请人： Hirotaka Miyamoto , Kimihiro Saito , Kunihiko Hayashi
发明人： Hirotaka Miyamoto , Kimihiro Saito , Kunihiko Hayashi
IPC分类号： G11B7/00
CPC分类号： G11B7/08511 , G11B7/00452 , G11B7/0065 , G11B7/00781 , G11B7/08564 , G11B7/0938 , G11B7/1275 , G11B7/24038 , G11B7/24044 , G11B2007/13727
摘要： Disclosed is an optical disc device that is able to increase accuracy in reproducing information from an optical disc. The optical disc device 10 calculates a focus error signal SFE2 and a sum signal SS1 while reciprocating an objective lens 21 in a focus direction until a distance between a focal point FS and a focal point FM1 becomes close to the depth d of a target position PG at the time of a pull-in operation, and when a trigger signal ST1 generated on the basis of the sum signal SS1 is at low level, starts focus control on the basis of the focus error signal SFE2. Therefore, focus control can start in a state where the focus error signal SFE2 curves in an S shape with sufficient amplitude.
摘要翻译：公开了能够提高从光盘再现信息的精度的光盘装置。光盘装置10计算聚焦误差信号SFE2和和信号SS1，同时使物镜21在聚焦方向上往复运动，直到焦点FS与焦点FM1之间的距离变得接近目标位置PG的深度d 并且当基于和信号SS1生成的触发信号ST1处于低电平时，基于聚焦误差信号SFE2开始聚焦控制。因此，聚焦误差信号SFE2在具有足够幅度的S形状下弯曲的状态下可以开始聚焦控制。

30. 发明授权

US07738344B2 Liquid crystal lens element optical head device 有权
标题翻译：液晶镜头元件光头装置
公开(公告)号：US07738344B2
公开(公告)日：2010-06-15
申请号：US11625005
申请日：2007-01-19
申请人： Yoshiharu Ooi , Takuji Nomura , Toshimasa Kakiuchi , Mitsuo Oosawa , Yuzuru Tanabe
发明人： Yoshiharu Ooi , Takuji Nomura , Toshimasa Kakiuchi , Mitsuo Oosawa , Yuzuru Tanabe
IPC分类号： G11B7/00 , G11B7/135
CPC分类号： G02B3/08 , G02F1/133526 , G02F1/29 , G02F2001/294 , G11B7/1353 , G11B7/1369 , G11B7/1374 , G11B7/13925 , G11B2007/0006 , G11B2007/0013 , G11B2007/13722 , G11B2007/13727
摘要： A liquid crystal lens element is provided, which does not produce change of transmission wavefront regardless of polarization state of incident light when it is off-state at a time of no voltage application, and which exhibits concave lens function for extraordinarily polarized incident light when it is on-state at a time of voltage application.In a liquid crystal lens element 10 comprising a pair of transparent substrates 11 and 12 and a liquid crystal layer 16 sandwiched between the transparent substrates, which is configured to change convergent point of light transmitted through the element according to the magnitude of voltage applied to the liquid crystal layer 16, the liquid crystal lens element 10 further comprises a Fresnel lens 17 having a concave-convex-shaped cross section formed on the transparent substrate 11, a first transparent electrode 13 formed on a flat surface of the transparent substrate 11 on which the Fresnel lens 17 is formed, and a second transparent electrode 14 formed on a flat surface of the other transparent substrate 12.
摘要翻译：提供了一种液晶透镜元件，其在不施加电压时处于断开状态时不会使入射光的偏振状态发生变化，并且当具有非常偏振的入射光时具有凹透镜功能在施加电压时处于导通状态。在包括一对透明基板11和12以及夹在透明基板之间的液晶层16的液晶透镜元件10中，该液晶透镜元件被配置为根据施加到该透明基板的电压的大小来改变透过该元件的光的会聚点液晶透镜元件10还包括形成在透明基板11上的具有凹凸截面的菲涅耳透镜17，形成在透明基板11的平坦表面上的第一透明电极13，形成菲涅耳透镜17，形成在另一透明基板12的平坦表面上的第二透明电极14。

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