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1. 发明授权

US06587283B2 Optical-component-integrated optical pickup 失效
标题翻译：光学元件集成光学拾取器
公开(公告)号：US06587283B2
公开(公告)日：2003-07-01
申请号：US09820958
申请日：2001-03-29
申请人： Shinichi Ijima , Kazuhiko Yamanaka , Kazutoshi Onozawa , Hideyuki Nakanishi
发明人： Shinichi Ijima , Kazuhiko Yamanaka , Kazutoshi Onozawa , Hideyuki Nakanishi
IPC分类号： G02B702
CPC分类号： G11B7/1362 , G11B7/0901 , G11B7/0912 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B7/123 , G11B7/1353
摘要： An optical pickup is equipped with: an enclosure which contains an optical system including a semiconductor laser and an objective lens; a fixed member; and an elastic supporting member which has conductivity and movably supports the enclosure. A plurality of pairs of driving coils are each positioned in the enclosure so as to be symmetrical with respect to an optical axis of a laser beam. The plurality of pairs of driving coils generate magnetic forces with a plurality of magnets or the like, to drive the enclosure in a focusing direction and a tracking direction.
摘要翻译：光拾取器配备有：包含包括半导体激光器和物镜的光学系统的外壳; 固定会员以及具有导电性并可移动地支撑外壳的弹性支撑构件。多对驱动线圈分别位于外壳中，以相对于激光束的光轴对称。多对驱动线圈产生具有多个磁体等的磁力，以沿聚焦方向和跟踪方向驱动外壳。

2. 发明授权

US06510121B2 OBJECTIVE LENS DRIVING DEVICE INCLUDING A DAMPING MEMBER WHICH HAS AN OPENING ON A MAIN SURFACE TO ALLOW AN OPTICAL AXIS OF A LENS TO PASS THROUGH, AND OPTICAL PICKUP USING THE OBJECT LENS DRIVING DEVICE 失效
标题翻译：目标镜头驱动装置，包括在主表面上打开的阻尼构件，允许通过透镜的透镜轴，以及使用对象镜头驱动装置的光学拾取
公开(公告)号：US06510121B2
公开(公告)日：2003-01-21
申请号：US09821670
申请日：2001-03-29
申请人： Shinichi Ijima , Kazuhiko Yamanaka , Kazutoshi Onozawa , Hideyuki Nakanishi
发明人： Shinichi Ijima , Kazuhiko Yamanaka , Kazutoshi Onozawa , Hideyuki Nakanishi
IPC分类号： G11B709
CPC分类号： G11B7/0933 , G11B7/0935
摘要： In a lens driving device for an optical recording/reproducing apparatus, a lens is held by a platelike damping member that is made of silicone porous material, for example, and both ends of the damping member are fixed to a base. This construction prevents undesired oscillations. Also, in order to drive the lens, two magnets are attached to an outer edge of the lens opposite to each other with the lens interposed in between them, and driving coils are attached to the base facing the magnets. The driving coils have two coils that drive the lens in the tracking and focusing directions, respectively.
摘要翻译：在用于光学记录/再现装置的透镜驱动装置中，透镜由例如由硅氧烷多孔材料制成的板状阻尼构件保持，并且阻尼构件的两端固定到基座。这种结构防止不期望的振荡。此外，为了驱动透镜，将两个磁体连接到彼此相对的透镜的外边缘，并且透镜插入其间，并且驱动线圈附接到面对磁体的基部。驱动线圈分别具有驱动跟踪和聚焦方向的透镜的两个线圈。

3. 发明授权

US06735024B2 Optical pickup with improved optical properties 失效
标题翻译：具有改善光学性能的光学拾取器
公开(公告)号：US06735024B2
公开(公告)日：2004-05-11
申请号：US10263166
申请日：2002-10-02
申请人： Hideyuki Nakanishi , Shoichi Takasuka , Shinichi Ijima , Akio Yoshikawa , Kazutoshi Onozawa , Kazuhiko Yamanaka , Naoki Nakanishi
发明人： Hideyuki Nakanishi , Shoichi Takasuka , Shinichi Ijima , Akio Yoshikawa , Kazutoshi Onozawa , Kazuhiko Yamanaka , Naoki Nakanishi
IPC分类号： G02B702
CPC分类号： G11B7/0933 , G11B7/0932 , G11B7/0935 , G11B7/123 , G11B7/22 , H01L2224/48091 , H01L2224/48227 , H01L2924/00014
摘要： A movable enclosure contains optical components, such as an objective lens, a semiconductor laser, a mirror, and a photodetector. The movable enclosure is supported by a fixed member via a plurality of wires that are positioned in parallel. This construction allows the movable enclosure to move in a tracking direction and a focusing direction. The plurality of wires are insulated from one another to be also used as power-supplying lines and signal lines for the semiconductor laser and the photodetector.
摘要翻译：可移动的外壳包含诸如物镜，半导体激光器，反射镜和光电检测器的光学部件。可移动外壳经由多个平行定位的导线由固定构件支撑。这种结构允许可动外壳沿跟踪方向和聚焦方向移动。多根导线彼此绝缘，也用作半导体激光器和光电检测器的供电线和信号线。

4. 发明授权

US06665238B2 Lens driving device, an optical pickup including the lens driving device, and a production method for the lens driving device 失效
标题翻译：透镜驱动装置，包括透镜驱动装置的光学拾取器以及用于透镜驱动装置的制造方法
公开(公告)号：US06665238B2
公开(公告)日：2003-12-16
申请号：US09820076
申请日：2001-03-28
申请人： Shinichi Ijima , Kazuhiko Yamanaka , Kazutoshi Onozawa , Hideyuki Nakanishi
发明人： Shinichi Ijima , Kazuhiko Yamanaka , Kazutoshi Onozawa , Hideyuki Nakanishi
IPC分类号： G11B700
CPC分类号： G11B7/0932
摘要： A lens holding member carrying an objective lens is movable and supported by a fixed member via a plurality of supporting members. Each supporting member includes a bent part in its base portion on the side of the fixed member. The bent part is bent in a first direction (focusing direction) and a second direction (tracking direction) that are perpendicular to each another. Each supporting member is shaped so as to make all the principal planes of the supporting member parallel to the second direction. The fixed member includes a concave, which is impregnated with a gel material so that the bent part is covered with the gel material.
摘要翻译：携带物镜的透镜保持构件可通过多个支撑构件由固定构件移动并支撑。每个支撑构件在其固定构件侧的基部中包括弯曲部分。弯曲部分在彼此垂直的第一方向（聚焦方向）和第二方向（跟踪方向）上弯曲。每个支撑构件被成形为使得支撑构件的所有主平面平行于第二方向。固定构件包括凹部，其被凝胶材料浸渍，使得弯曲部分被凝胶材料覆盖。

5. 发明授权

US06473248B1 Method for manufacturing an optical pickup 失效
标题翻译：光学拾取器的制造方法
公开(公告)号：US06473248B1
公开(公告)日：2002-10-29
申请号：US09666518
申请日：2000-09-20
申请人： Hideyuki Nakanishi , Shoichi Takasuka , Shinichi Ijima , Akio Yoshikawa , Kazutoshi Onozawa , Kazuhiko Yamanaka , Naoki Nakanishi
发明人： Hideyuki Nakanishi , Shoichi Takasuka , Shinichi Ijima , Akio Yoshikawa , Kazutoshi Onozawa , Kazuhiko Yamanaka , Naoki Nakanishi
IPC分类号： G02B702
CPC分类号： G11B7/0933 , G11B7/0932 , G11B7/0935 , G11B7/123 , G11B7/22 , H01L2224/48091 , H01L2224/48227 , H01L2924/00014
摘要： A movable enclosure contains optical components, such as an objective lens, a semiconductor laser, a mirror, and a photodetector. The movable enclosure is supported by a fixed member via a plurality of wires that are positioned in parallel. This construction allows the movable enclosure to move in a tracking direction and a focusing direction. The plurality of wires are insulated from one another to be also used as power-supplying lines and signal lines for the semiconductor laser and the photodetector.
摘要翻译：可移动的外壳包含诸如物镜，半导体激光器，反射镜和光电检测器的光学部件。可移动外壳经由多个平行定位的导线由固定构件支撑。这种结构允许可动外壳沿跟踪方向和聚焦方向移动。多根导线彼此绝缘，也用作半导体激光器和光电检测器的供电线和信号线。

6. 发明授权

US07209427B2 Optical pickup with reduced size 有权
标题翻译：光学拾音器尺寸减小
公开(公告)号：US07209427B2
公开(公告)日：2007-04-24
申请号：US10870438
申请日：2004-06-18
申请人： Kazuhiko Yamanaka , Takuya Okuda , Shinichi Ijima , Tomoaki Tojo , Kazutoshi Onozawa , Junichi Kubo
发明人： Kazuhiko Yamanaka , Takuya Okuda , Shinichi Ijima , Tomoaki Tojo , Kazutoshi Onozawa , Junichi Kubo
IPC分类号： G11B7/00
CPC分类号： G11B7/1362 , G11B7/123 , G11B7/1353 , G11B7/1374 , G11B7/13922
摘要： An optical pickup having a light-emitting element, an objective lens unit, a reflecting mirror and a light-receiving element, emits a beam onto an optical recording medium and uses a reflected beam to read recorded information. In the objective lens unit, a central part of a surface, facing the light-emitting element, of an objective lens disposed so that an optical axis is substantially aligned with a chief ray of the beam emitted by the light-emitting element, is a transmissive diffraction grating, and a central part of a surface of the objective lens that will face the optical recording medium is a convex mirror which bulges toward the light-emitting element. The reflecting mirror, which is annular and encompasses the optical axis of the objective lens, reflects toward the objective lens the beam from the light-emitting element that has passed through the transmissive diffraction grating and been reflected by the convex mirror. The light-receiving element receives first-order diffracted light, of the reflected beam from the recording medium, diffracted by the transmissive diffraction grating.
摘要翻译：具有发光元件，物镜单元，反射镜和光接收元件的光学拾取器将光束发射到光学记录介质上并使用反射光束来读取记录的信息。在物镜单元中，面对发光元件的表面的中心部分设置为使得光轴基本上与由发光元件发射的光束的主光线对准，是物镜透镜式衍射光栅和面向光记录介质的物镜表面的中心部分是向发光元件凸出的凸面镜。环形并且包围物镜的光轴的反射镜朝向物镜反射来自已经通过透射衍射光栅的发光元件的光并被凸面镜反射。光接收元件接收来自记录介质的反射光束的一级衍射光，被透射衍射光栅衍射。

7. 发明申请

US20050047312A1 Optical pickup with reduced size 有权
标题翻译：光学拾音器尺寸减小
公开(公告)号：US20050047312A1
公开(公告)日：2005-03-03
申请号：US10870438
申请日：2004-06-18
申请人： Kazuhiko Yamanaka , Takuya Okuda , Shinichi Ijima , Tomoaki Tojo , Kazutoshi Onozawa , Junichi Kubo
发明人： Kazuhiko Yamanaka , Takuya Okuda , Shinichi Ijima , Tomoaki Tojo , Kazutoshi Onozawa , Junichi Kubo
IPC分类号： G11B7/00 , G11B7/12 , G11B7/135
CPC分类号： G11B7/1362 , G11B7/123 , G11B7/1353 , G11B7/1374 , G11B7/13922
摘要： An optical pickup having a light-emitting element, an objective lens unit, a reflecting mirror and a light-receiving element, emits a beam onto an optical recording medium and uses a reflected beam to read recorded information. In the objective lens unit, a central part of a surface, facing the light-emitting element, of an objective lens disposed so that an optical axis is substantially aligned with a chief ray of the beam emitted by the light-emitting element, is a transmissive diffraction grating, and a central part of a surface of the objective lens that will face the optical recording medium is a convex mirror which bulges toward the light-emitting element. The reflecting mirror, which is annular and encompasses the optical axis of the objective lens, reflects toward the objective lens the beam from the light-emitting element that has passed through the transmissive diffraction grating and been reflected by the convex mirror. The light-receiving element receives first-order diffracted light, of the reflected beam from the recording medium, diffracted by the transmissive diffraction grating.
摘要翻译：具有发光元件，物镜单元，反射镜和光接收元件的光学拾取器将光束发射到光学记录介质上并使用反射光束来读取记录的信息。在物镜单元中，面对发光元件的表面的中心部分设置为使得光轴基本上与由发光元件发射的光束的主光线对准，是物镜透镜式衍射光栅和面向光记录介质的物镜表面的中心部分是向发光元件凸出的凸面镜。环形并且包围物镜的光轴的反射镜朝向物镜反射来自已经通过透射衍射光栅的发光元件的光并被凸面镜反射。光接收元件接收来自记录介质的反射光束的一级衍射光，被透射衍射光栅衍射。

8. 发明申请

US20080304398A1 Optical Head That Improves Read Signal Characteristics 审中-公开
标题翻译：提高读信号特性的光头
公开(公告)号：US20080304398A1
公开(公告)日：2008-12-11
申请号：US11792142
申请日：2005-12-01
申请人： Kazutoshi Onozawa , Kazuhiko Yamanaka , Tomoaki Tojo , Takuya Okuda , Shinichi Ijima , Junichi Kubo
发明人： Kazutoshi Onozawa , Kazuhiko Yamanaka , Tomoaki Tojo , Takuya Okuda , Shinichi Ijima , Junichi Kubo
IPC分类号： G11B7/135
CPC分类号： G11B7/1374 , G11B7/1362 , G11B7/1367 , G11B7/1381
摘要： In an optical head operable to record to and read from an optical recording medium, a beam emitted by a light-emitting element is reflected toward the light-emitting element by a first reflective mirror, and this reflected beam is reflected toward the optical recording medium by a second reflective mirror and focused on a recording surface of the optical recording medium. In this case, the first reflective mirror blocks a principal ray of the beam traveling toward the optical recording medium from the second reflective mirror, and the second reflective mirror consists of a plurality of concentric annular mirrors centered on the principal ray of the beam and separated from each other by a predetermined interval.
摘要翻译：在可操作以记录和读取光记录介质的光学头中，由发光元件发射的光束通过第一反射镜朝向发光元件反射，并且该反射光束被反射向光记录介质通过第二反射镜并聚焦在光学记录介质的记录表面上。在这种情况下，第一反射镜阻挡从第二反射镜朝向光学记录介质传播的光束的主光线，并且第二反射镜由以束的主光线为中心的多个同心环形反射镜组成，并分离彼此间隔预定间隔。

9. 发明授权

US07014798B2 Method for manufacturing an optical pickup 失效
公开(公告)号：US07014798B2
公开(公告)日：2006-03-21
申请号：US10403941
申请日：2003-03-31
申请人： Shinichi Ijima , Teruki Ishido , Kazuhiko Yamanaka , Kazutoshi Onozawa
发明人： Shinichi Ijima , Teruki Ishido , Kazuhiko Yamanaka , Kazutoshi Onozawa
IPC分类号： B29D11/00
CPC分类号： G11B7/22 , B29C45/0053 , B29C45/14467 , G11B7/0932
摘要： To provide a manufacturing method for an optical pickup in which a movable member carrying an objective lens is supported by a fixed member through a pair of elastic support member groups, which are each made up of a plurality of parallel elastic support members, so as to be movable in focusing and tracking directions. In a suspension unit forming step, two holding members are formed from a synthetic resin by insert molding at different positions of each elastic support member group in a lengthwise direction of the elastic support members, thereby forming a pair of suspension units. In a connecting step, the pair of suspension units are opposed with an arrangement direction of the elastic support members being substantially the same as the focusing direction, and one holding member of each suspension unit is connected to the movable member and the other holding member to the fixed member.

10. 发明申请

US20050050569A1 Optical head 失效
标题翻译：光头
公开(公告)号：US20050050569A1
公开(公告)日：2005-03-03
申请号：US10870055
申请日：2004-06-18
申请人： Kazuhiko Yamanaka , Takuya Okuda , Kazutoshi Onozawa
发明人： Kazuhiko Yamanaka , Takuya Okuda , Kazutoshi Onozawa
IPC分类号： G11B7/09 , G11B7/08 , G11B7/12 , G11B7/125
CPC分类号： G11B7/0935 , G11B7/0932 , G11B7/0933 , G11B7/123
摘要： An optical head includes a fixed part, a movable part movably held by a plurality of wires fixed on the fixed part, and magnets fixed to the fixed part. The movable part includes a movable-part housing, a heatsink held by the movable-part housing, a light emitting element and a light receiving element both mounted on the heatsink, magnets provided to both sides of the movable-part housing to contact the heatsink, an objective lens held by the movable-part housing to allow an emitted laser beam from the light emitting element to focus, and a diffraction grating provided between the objective lens and the light emitting element and between the objective lens and the light receiving element. The gap between each coil and the adjacent magnet is filled with ferrofluid having a higher thermal conductivity than the atmosphere.
摘要翻译：光头包括固定部分，由固定在固定部分上的多个电线可移动地固定的可移动部分和固定到固定部分上的磁体。可移动部件包括可移动部件壳体，由可移动部件壳体保持的散热器，安装在散热器上的发光元件和光接收元件，设置在可移动部件壳体的两侧以接触散热器的磁体由可动部分壳体保持的允许来自发光元件的发射激光束聚焦的物镜，以及设置在物镜和发光元件之间以及物镜和光接收元件之间的衍射光栅。每个线圈和相邻磁体之间的间隙填充有比大气更高导热系数的铁磁流体。

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