专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07684305B2 Optical pickup, optical recording and reproducing apparatus and tracking error signal detecting method 失效
标题翻译：光学拾取，光学记录和再现装置以及跟踪误差信号检测方法
公开(公告)号：US07684305B2
公开(公告)日：2010-03-23
申请号：US11598579
申请日：2006-11-14
申请人： Yoshiki Okamoto , Katsuhiro Seo
发明人： Yoshiki Okamoto , Katsuhiro Seo
IPC分类号： G11B7/00
CPC分类号： G11B7/131 , G11B7/094 , G11B7/0943 , G11B7/1353
摘要： An optical pickup includes an optical system in which light from a light source is introduced through an objective lens into an optical recording medium and in which light reflected from the optical recording medium is introduced into a light-receiving unit and an objective lens driving unit for driving the objective lens based on a light output detected at said light-receiving unit. In this optical pickup, a diffraction element is provided between the light source and the objective lens, the diffraction element is provided with at least first and second diffraction areas and the first and second diffraction areas have such grating shapes that ± first-order diffracted lights diffracted are received by the light-receiving unit at the position in which 0-th order light and ± first-order diffracted lights generated from guide grooves of the optical recording medium may not overlap with each other.
摘要翻译：光学拾取器包括光学系统，其中来自光源的光通过物镜被引入到光学记录介质中，并且其中从光学记录介质反射的光被引入光接收单元和物镜驱动单元基于在所述光接收单元处检测到的光输出来驱动物镜。在该光学拾取器中，在光源和物镜之间设置衍射元件，衍射元件设置有至少第一和第二衍射区域，并且第一和第二衍射区域具有这样的光栅形状，即±一级衍射光衍射由光接收单元在从光记录介质的引导槽产生的0级光和±一级衍射光彼此不重叠的位置处接收。

2. 发明授权

US07336432B2 Optical pickup and optical disc device 有权
标题翻译：光学拾取和光盘设备
公开(公告)号：US07336432B2
公开(公告)日：2008-02-26
申请号：US11214748
申请日：2005-08-31
申请人： Katsuhiro Seo , Yoshiaki Kato , Yoshiki Okamoto , Takeshi Yonezawa
发明人： Katsuhiro Seo , Yoshiaki Kato , Yoshiki Okamoto , Takeshi Yonezawa
IPC分类号： G02B9/06
CPC分类号： G11B7/13927 , G11B7/1376 , G11B7/24038
摘要： An optical pickup includes at least a laser light source emitting a laser beam, a collimator lens system including a plurality of lenses for collimating the light beam emitted from the laser light source and incident thereupon as diffused light, and an objective lens. The laser beam transmitted through the collimator lens system is incident upon the objective lens. The collimator lens system includes a first lens unit held so as to be movable in an optical axis direction of the laser beam and a fixed second lens unit.
摘要翻译：光拾取器至少包括发射激光束的激光光源，准直透镜系统，其包括多个透镜，用于准直来自激光光源的光束并作为漫射光入射到其上;以及物镜。透射准直透镜系统的激光束入射到物镜上。准直透镜系统包括保持以能够在激光束的光轴方向上移动的第一透镜单元和固定的第二透镜单元。

3. 发明授权

US07800986B2 Optical pickup and optical disc apparatus 有权
标题翻译：光拾取和光盘装置
公开(公告)号：US07800986B2
公开(公告)日：2010-09-21
申请号：US11678395
申请日：2007-02-23
申请人： Takashi Kobayashi , Katsuhiro Seo , Yoshiki Okamoto , Noriyuki Kato
发明人： Takashi Kobayashi , Katsuhiro Seo , Yoshiki Okamoto , Noriyuki Kato
IPC分类号： G11B7/00
CPC分类号： G11B7/0901 , G11B7/123 , G11B7/131 , G11B7/1353 , G11B7/1381
摘要： An optical pickup for recording or reproducing an information signal in an optical disc includes a light source for emitting a light beam toward the optical disc, an objective lens for focusing the light beam emitted from the light source onto a recording surface of the optical disc, and a photodetector for receiving the light beam reflected by the recording surface of the optical disc and outputting a signal corresponding to an intensity of the received light beam. A spot of the light beam received by the photodetector is asymmetric in both a radial direction and a tangential direction of the optical disc. A lens shift signal for the objective lens is detected by a controller on the basis of the signal output from the photodetector, the controller controlling the objective lens to follow the optical disc.
摘要翻译：用于在光盘中记录或再现信息信号的光学拾取器包括用于向光盘发射光束的光源，用于将从光源发射的光束聚焦到光盘的记录表面上的物镜，以及光电检测器，用于接收由光盘的记录表面反射的光束，并输出与所接收的光束的强度对应的信号。由光电检测器接收的光束的光点在光盘的径向和切线方向上是不对称的。控制器根据从光电检测器输出的信号，控制物镜跟随光盘的控制器检测物镜的透镜移位信号。

4. 发明授权

US07492676B2 Optical pickup and optical disc apparatus including the same 失效
标题翻译：光拾取器和包括其的光盘装置
公开(公告)号：US07492676B2
公开(公告)日：2009-02-17
申请号：US11859165
申请日：2007-09-21
申请人： Yoshiki Okamoto , Katsuhiro Seo
发明人： Yoshiki Okamoto , Katsuhiro Seo
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1381 , G11B2007/0013
摘要： An optical pickup for recording/reproducing information on/from an optical disc having recording layers, includes a light source; an objective lens for condensing an optical beam emitted from the light source on the recording layer; a photo-detector having a light-receiving section for receiving return light from the optical disc; an optical-path separating unit for separating the optical path of the return light reflected by the optical disc from the optical path of the optical beam emitted from the light source; and a masking member having a masking unit shielding part of a passing-through optical beam, in which the masking unit shields the central region of the optical beam to be incident in the light-receiving section among the optical beams reflected by the other recording layers or surfaces different from the recording layer recording/reproducing information so as not to admit the central region to the light-receiving section.
摘要翻译：一种用于在具有记录层的光盘上记录/再现信息的光学拾取器，包括光源; 用于将从光源发射的光束聚光在记录层上的物镜; 光检测器，具有用于从光盘接收返回光的光接收部分; 光路分离单元，用于将由光盘反射的返回光的光路与从光源发射的光束的光路分离; 以及遮蔽构件，其具有通过光束的掩模单元屏蔽部分，其中所述掩蔽单元屏蔽由所述其它记录层反射的光束中的入射在所述光接收部分中的所述光束的中心区域或与记录层记录/再现信息不同的表面，以便不将中心区域接纳到光接收部分。

5. 发明申请

US20050276297A1 Optical pickup and optical disk apparatus 审中-公开
标题翻译：光学拾取和光盘设备
公开(公告)号：US20050276297A1
公开(公告)日：2005-12-15
申请号：US11116303
申请日：2005-04-28
申请人： Noriaki Nishi , Yoshiki Okamoto , Katsuhiro Seo , Satoshi Imai , Kenji Yamamoto , Takeshi Yonezawa , Midori Kanaya , Hiroaki Nakagawa
发明人： Noriaki Nishi , Yoshiki Okamoto , Katsuhiro Seo , Satoshi Imai , Kenji Yamamoto , Takeshi Yonezawa , Midori Kanaya , Hiroaki Nakagawa
IPC分类号： G11B7/135 , G11B7/00 , G11B7/125 , H01S5/00
CPC分类号： G11B7/1369 , G11B7/1378 , G11B7/13925 , G11B2007/0006 , G11B2007/13727 , H01S5/005
摘要： An optical pickup includes a laser light source configured to emit laser light, an objective lens configured to focus the laser light emitted from the laser light onto an optical disk, and an image-formation magnification rate varying section for varying an image-formation magnification rate at which the laser light is focused on the optical disk.
摘要翻译：光学拾取器包括被配置为发射激光的激光光源，被配置为将从激光发射的激光聚焦到光盘上的物镜，以及用于改变成像放大率的成像倍率变化部分其中激光聚焦在光盘上。

6. 发明申请

US20070206451A1 OPTICAL PICKUP AND OPTICAL DISC APPARATUS 有权
标题翻译：光学拾取和光盘设备
公开(公告)号：US20070206451A1
公开(公告)日：2007-09-06
申请号：US11678395
申请日：2007-02-23
申请人： Takashi Kobayashi , Katsuhiro Seo , Yoshiki Okamoto , Noriyuki Kato
发明人： Takashi Kobayashi , Katsuhiro Seo , Yoshiki Okamoto , Noriyuki Kato
IPC分类号： G11B7/00
CPC分类号： G11B7/0901 , G11B7/123 , G11B7/131 , G11B7/1353 , G11B7/1381
摘要： An optical pickup for recording or reproducing an information signal in an optical disc includes a light source for emitting a light beam toward the optical disc, an objective lens for focusing the light beam emitted from the light source onto a recording surface of the optical disc, and a photodetector for receiving the light beam reflected by the recording surface of the optical disc and outputting a signal corresponding to an intensity of the received light beam. A spot of the light beam received by the photodetector is asymmetric in both a radial direction and a tangential direction of the optical disc. A lens shift signal for the objective lens is detected by a controller on the basis of the signal output from the photodetector, the controller controlling the objective lens to follow the optical disc.
摘要翻译：用于在光盘中记录或再现信息信号的光学拾取器包括用于向光盘发射光束的光源，用于将从光源发射的光束聚焦到光盘的记录表面上的物镜，以及光电检测器，用于接收由光盘的记录表面反射的光束，并输出与所接收的光束的强度对应的信号。由光电检测器接收的光束的光点在光盘的径向和切线方向上是不对称的。控制器根据从光电检测器输出的信号，控制物镜跟随光盘的控制器检测物镜的透镜移位信号。

7. 发明申请

US20070109930A1 Optical pickup, optical recording and reproducing apparatus and tracking error signal detecting method 失效
标题翻译：光学拾取，光学记录和再现装置以及跟踪误差信号检测方法
公开(公告)号：US20070109930A1
公开(公告)日：2007-05-17
申请号：US11598579
申请日：2006-11-14
申请人： Yoshiki Okamoto , Katsuhiro Seo
发明人： Yoshiki Okamoto , Katsuhiro Seo
IPC分类号： G11B7/00
CPC分类号： G11B7/131 , G11B7/094 , G11B7/0943 , G11B7/1353
摘要： An optical pickup includes an optical system in which light from a light source is introduced through an objective lens into an optical recording medium and in which light reflected from the optical recording medium is introduced into a light-receiving unit and an objective lens driving unit for driving the objective lens based on a light output detected at said light-receiving unit. In this optical pickup, a diffraction element is provided between the light source and the objective lens, the diffraction element is provided with at least first and second diffraction areas and the first and second diffraction areas have such grating shapes that ±first-order diffracted lights diffracted are received by the light-receiving unit at the position in which 0-th order light and ±first-order diffracted lights generated from guide grooves of the optical recording medium may not overlap with each other.
摘要翻译：光学拾取器包括光学系统，其中来自光源的光通过物镜被引入到光学记录介质中，并且其中从光学记录介质反射的光被引入光接收单元和物镜驱动单元基于在所述光接收单元处检测到的光输出来驱动物镜。在该光学拾取器中，在光源和物镜之间设置衍射元件，衍射元件设置有至少第一和第二衍射区域，并且第一和第二衍射区域具有这样的光栅形状，即±一级衍射光衍射由光接收单元在从光记录介质的引导槽产生的0级光和±一级衍射光彼此不重叠的位置处接收。

8. 发明申请

US20060050413A1 Optical pickup and optical disc device 有权
标题翻译：光学拾取和光盘设备
公开(公告)号：US20060050413A1
公开(公告)日：2006-03-09
申请号：US11214748
申请日：2005-08-31
申请人： Katsuhiro Seo , Yoshiaki Kato , Yoshiki Okamoto , Takeshi Yonezawa
发明人： Katsuhiro Seo , Yoshiaki Kato , Yoshiki Okamoto , Takeshi Yonezawa
IPC分类号： G02B9/00
CPC分类号： G11B7/13927 , G11B7/1376 , G11B7/24038
摘要： An optical pickup includes at least a laser light source emitting a laser beam, a collimator lens system including a plurality of lenses for collimating the light beam emitted from the laser light source and incident thereupon as diffused light, and an objective lens. The laser beam transmitted through the collimator lens system is incident upon the objective lens. The collimator lens system includes a first lens unit held so as to be movable in an optical axis direction of the laser beam and a fixed second lens unit.
摘要翻译：光拾取器至少包括发射激光束的激光光源，准直透镜系统，其包括多个透镜，用于准直来自激光光源的光束并作为漫射光入射到其上;以及物镜。透射准直透镜系统的激光束入射到物镜上。准直透镜系统包括保持以能够在激光束的光轴方向上移动的第一透镜单元和固定的第二透镜单元。

9. 发明授权

US08169713B2 Zoom lens, camera module and electronic apparatus 失效
标题翻译：变焦镜头，相机模块和电子设备
公开(公告)号：US08169713B2
公开(公告)日：2012-05-01
申请号：US12795134
申请日：2010-06-07
申请人： Katsuhiro Seo , Yoshiki Okamoto , Mamoru Suzuki , Akira Suzuki
发明人： Katsuhiro Seo , Yoshiki Okamoto , Mamoru Suzuki , Akira Suzuki
IPC分类号： G02B15/14 , G02B1/06
CPC分类号： G02B3/14 , G02B15/00
摘要： Disclosed herein is a zoom lens, including: an object side lens group disposed on the object side and including a first variable lens having a deformation surface, the object side lens group having a focal length varied by deformation of the first variable lens; an image side lens group disposed on the image side with respect to the object side lens group with an aperture stop sandwiched therebetween and including a second variable lens having a deformation surface, the image side lens group having a focal length varied by deformation of the second variable lens; and a lens group disposed between the object side lens group and the image side lens group and including the aperture stop. The deformation of the first and second variable lenses is controlled to carry out power variation and carry out image surface movement compensation and focusing by the power variation.
摘要翻译：本发明公开了一种变焦透镜，包括：物体侧透镜组，其设置在物体侧并且包括具有变形面的第一可变透镜，所述物体侧透镜组具有随着所述第一可变透镜的变形而变化的焦距; 相对于物镜侧透镜组设置在像侧的像侧透镜组，其间夹有孔径光阑，并且包括具有变形面的第二可变透镜，所述像侧透镜组的焦距由第二透镜组的变形而变化可变透镜; 以及设置在物体侧透镜组和像侧透镜组之间并且包括孔径光阑的透镜组。控制第一和第二可变透镜的变形以进行功率变化，并通过功率变化进行图像表面移动补偿和聚焦。

10. 发明申请

US20110002043A1 ZOOM LENS, CAMERA MODULE AND ELECTRONIC APPARATUS 失效
标题翻译：变焦镜头，相机模块和电子设备
公开(公告)号：US20110002043A1
公开(公告)日：2011-01-06
申请号：US12795134
申请日：2010-06-07
申请人： Katsuhiro Seo , Yoshiki Okamoto , Mamoru Suzuki , Akira Suzuki
发明人： Katsuhiro Seo , Yoshiki Okamoto , Mamoru Suzuki , Akira Suzuki
IPC分类号： G02B15/00 , G02B3/14
CPC分类号： G02B3/14 , G02B15/00
摘要： Disclosed herein is a zoom lens, including: an object side lens group disposed on the object side and including a first variable lens having a deformation surface, the object side lens group having a focal length varied by deformation of the first variable lens; an image side lens group disposed on the image side with respect to the object side lens group with an aperture stop sandwiched therebetween and including a second variable lens having a deformation surface, the image side lens group having a focal length varied by deformation of the second variable lens; and a lens group disposed between the object side lens group and the image side lens group and including the aperture stop. The deformation of the first and second variable lenses is controlled to carry out power variation and carry out image surface movement compensation and focusing by the power variation.
摘要翻译：本发明公开了一种变焦透镜，包括：物体侧透镜组，其设置在物体侧并且包括具有变形面的第一可变透镜，所述物体侧透镜组具有随着所述第一可变透镜的变形而变化的焦距; 相对于物镜侧透镜组设置在像侧的像侧透镜组，其间夹有孔径光阑，并且包括具有变形面的第二可变透镜，所述像侧透镜组的焦距由第二透镜组的变形而变化可变透镜; 以及设置在物体侧透镜组和像侧透镜组之间并且包括孔径光阑的透镜组。控制第一和第二可变透镜的变形以进行功率变化，并通过功率变化进行图像表面移动补偿和聚焦。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式