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1.发明申请Objective lens element with peripheral diffraction structure and central phase step structure for optical disks and optical head device incorporating the same 审中-公开具有外围衍射结构的物镜元件和用于光盘的中心相阶梯结构以及包含该物镜的光学头装置公开(公告)号：US20080080357A1
公开(公告)日：2008-04-03
申请号：US11984722
申请日：2007-11-21
申请人： Yasuhiro Tanaka , Michihiro Yamagata , Akifumi Hashimoto , Yuichi Takahashi , Yukihiro Chokyu , Kei Ikeda
发明人： Yasuhiro Tanaka , Michihiro Yamagata , Akifumi Hashimoto , Yuichi Takahashi , Yukihiro Chokyu , Kei Ikeda
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An objective lens records information on, or read information from, a first optical medium by utilizing a first light beam which convergences on the first optical medium at a first numerical aperture (hereinafter “NA1”). The objective lens records information on, or read information from, a second optical medium by utilizing a second light beam which convergences on the second optical medium at a second numerical aperture (hereinafter “NA2”). In the objective lens, NA1 is greater than NA2. The objective lens has an optical lens for receiving the first light beam and the second light beam. The optical lens has a peripheral diffraction structure disposed substantially outside an area of incidence of the second light beam for suppressing fluctuation in wavefront aberration of the first light beam, and a phase step structure disposed in a central region relative to the peripheral region for producing a phase difference in the second light beam.
摘要翻译： 物镜通过利用以第一数值孔径收敛在第一光学介质上的第一光束（以下称为“NA1”）来记录关于第一光学介质的信息或从第一光学介质读取信息。 物镜通过利用以第二数值孔径（以下称为“NA2”）会聚在第二光学介质上的第二光束来记录关于第二光学介质的信息或从第二光学介质读取信息。 在物镜中，NA1大于NA2。 物镜具有用于接收第一光束和第二光束的光学透镜。 光学透镜具有基本上设置在第二光束的入射面的外侧的外围衍射结构，用于抑制第一光束的波面像差的波动，以及相位阶梯结构，其设置在相对于周边区域的中心区域中， 第二光束的相位差。
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2.发明申请Objective lens element for optical disks and optical head device incorporating the same 审中-公开用于光盘的物镜元件和包含该物镜的光学头装置公开(公告)号：US20050111336A1
公开(公告)日：2005-05-26
申请号：US10985906
申请日：2004-11-12
申请人： Yasuhiro Tanaka , Michihiro Yamagata , Akifumi Hashimoto , Yuichi Takahashi , Yukihiro Chokyu , Kei Ikeda
发明人： Yasuhiro Tanaka , Michihiro Yamagata , Akifumi Hashimoto , Yuichi Takahashi , Yukihiro Chokyu , Kei Ikeda
IPC分类号： G02B13/00 , G02B5/18 , G02B13/18 , G11B7/00 , G11B7/135 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/139 , G11B7/1392
CPC分类号： G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An objective lens records information on, or read information from, a first optical medium by utilizing a first light beam which convergences on the first optical medium at a first numerical aperture (hereinafter “NA1”). The objective lens records information on, or read information from, a second optical medium by utilizing a second light beam which convergences on the second optical medium at a second numerical aperture (hereinafter “NA2”). In the objective lens, NA1 is greater than NA2. The objective lens has an optical lens for receiving the first light beam and the second light beam. The optical lens has a peripheral diffraction structure disposed substantially outside an area of incidence of the second light beam for suppressing fluctuation in wavefront aberration of the first light beam, and a phase step structure disposed in a central region relative to the peripheral region for producing a phase difference in the second light beam.
摘要翻译： 物镜通过利用以第一数值孔径收敛在第一光学介质上的第一光束（以下称为“NA1”）来记录关于第一光学介质的信息或从第一光学介质读取信息。 物镜通过利用以第二数值孔径（以下称为“NA2”）会聚在第二光学介质上的第二光束来记录关于第二光学介质的信息或从第二光学介质读取信息。 在物镜中，NA1大于NA2。 物镜具有用于接收第一光束和第二光束的光学透镜。 光学透镜具有基本上设置在第二光束的入射面的外侧的外围衍射结构，用于抑制第一光束的波面像差的波动，以及相位步长结构，其设置在相对于周边区域的中心区域中， 第二光束的相位差。
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3.发明授权Optical head device with multiple diffracting planes, and an optical information apparatus, computer, video recording/reproducing apparatus, video reproducing apparatus, server, and car navigation system including the same 有权具有多个衍射面的光学头装置，以及光学信息装置，计算机，视频记录/再现装置，视频再现装置，服务器和包括其的汽车导航系统公开(公告)号：US07817524B2
公开(公告)日：2010-10-19
申请号：US11867024
申请日：2007-10-04
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/1275 , G11B11/10532 , G11B2007/0006
摘要： An optical head device 100 of the invention performs at least one of recording and reproducing of information for a plurality of types of optical recording mediums 7. A light source 1 emits a plurality of kinds of light having mutually different wavelengths. The positions for emitting the plurality of kinds of light from the light source are mutually deviated. A center C1 of first light 2a is matched with a pattern center C3 of a first diffracting plane 3a. A center C2 of second light 2b is matched with a pattern center C4 of a second diffracting plane 3b. The optical head apparatus 100 provided with the light source in which two or more light emitting elements are mounted in one module can perform stable tracking control.
摘要翻译： 本发明的光头装置100对多种类型的光记录介质7进行记录和再现信息中的至少一种。光源1发射具有相互不同波长的多种光。 用于从光源发射多种光的位置相互偏离。 第一光2a的中心C1与第一衍射面3a的图案中心C3相配合。 第二光2b的中心C2与第二衍射面3b的图案中心C4匹配。 设置有其中两个或更多个发光元件安装在一个模块中的光源的光学头装置100可以执行稳定的跟踪控制。
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4.发明申请Optical pickup, optical disk drive, optical information recording/replaying device, and tilt adjusting method 审中-公开光学拾取器，光盘驱动器，光学信息记录/重放装置和倾斜调节方法公开(公告)号：US20080089194A1
公开(公告)日：2008-04-17
申请号：US11905599
申请日：2007-10-02
IPC分类号： G11B7/00
CPC分类号： G11B7/0945 , G11B7/0925 , G11B7/0956 , G11B7/1275 , G11B7/13927 , G11B19/127 , G11B2007/0006 , G11B2007/0013
摘要： There is provided a tilt correction processing method which can reliably detect the amount of tilt in a short time and adjust it, and then recording or replaying is started in a short time by employing the same. To perform recording or replaying to plural optical information media, an optical pickup having one or a plurality of light sources; one or a plurality of objective lenses for focusing light from the light source onto the optical information medium; an objective lens actuator which can control the objective lens in a focus direction and in a tracking direction and control the tilt of the objective lens; an optical information medium discriminating unit for discriminating a type of an optical disk when recording or replaying is performed to the optical disk; and an objective lens tilt setting unit for tilting the objective lens with respect to at least one of the optical information media by a predetermined amount by the objective lens actuator based on the discriminated result of the type of the optical information medium.
摘要翻译： 提供了一种倾斜校正处理方法，其可以在短时间内可靠地检测倾斜量并进行调整，然后通过采用该倾斜校正处理方法在短时间内开始记录或重放。 为了对多个光信息介质执行记录或重放，具有一个或多个光源的光学拾取器; 一个或多个物镜，用于将来自光源的光聚焦到光信息介质上; 物镜致动器，其能够在聚焦方向和跟踪方向上控制物镜并控制物镜的倾斜; 当对光盘执行记录或重放时，用于鉴别光盘类型的光信息介质鉴别单元; 以及物镜倾斜设定单元，用于基于所述光信息介质的类型的识别结果，通过所述物镜致动器将所述物镜相对于所述光信息介质中的至少一个倾斜预定量。
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