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11. 发明授权

US07729226B2 Wavefront aberration compensation element, optical pickup, and optical disk apparatus 失效
标题翻译：波前像差补偿元件，光学拾取器和光盘装置
公开(公告)号：US07729226B2
公开(公告)日：2010-06-01
申请号：US10957674
申请日：2004-10-05
申请人： Tetsuya Ogata
发明人： Tetsuya Ogata
IPC分类号： G11B7/00
CPC分类号： G11B7/1367 , G11B7/1369 , G11B7/13925 , G11B2007/0006
摘要： A wavefront aberration compensation element includes a wavelength selection phase plate having a plurality of phase steps having various thicknesses at various areas, a liquid crystal layer for obtaining a prescribed wavefront aberration, and a pair of first and second electrode layers having the liquid crystal layer disposed therebetween, wherein either one of the wavelength selection phase plate and the pair of first and second electrode layers having the liquid crystal layer disposed therebetween is stacked on the other.
摘要翻译：波前像差补偿元件包括波长选择相位板，其具有在各个区域具有各种厚度的多个相位步骤，用于获得规定的波前像差的液晶层和设置有液晶层的一对第一和第二电极层其间，其中布置有液晶层的波长选择相位板和一对第一和第二电极层中的任一个彼此堆叠。

12. 发明授权

US07577076B2 Tilt sensor using diffraction grating 失效
$Tilt sensor using diffraction grating$
标题翻译：倾斜传感器采用衍射光栅
公开(公告)号：US07577076B2
公开(公告)日：2009-08-18
申请号：US10798362
申请日：2004-03-12
申请人： Tetsuya Ogata , Shigeru Oohchida , Junichi Kitabayashi , Suguru Douwaki
发明人： Tetsuya Ogata , Shigeru Oohchida , Junichi Kitabayashi , Suguru Douwaki
IPC分类号： G11B7/135
CPC分类号： G11B7/131 , G11B7/0956 , G11B7/1353 , G11B7/1369 , G11B7/1381 , G11B7/13925
摘要： A tilt sensor for detecting information related to a tilt of an object to a reference plane is disclosed. The tilt sensor includes a diffraction element disposed that diffracts an incident light at diffraction efficiency depending on the incident angle, and a photo detector that detects a diffraction light diffracted by said diffraction element and outputs an photoelectric signal. Since the diffraction efficiency of the diffraction element changes as the incident angle changes, the intensity of the diffraction light from the diffraction element changes. As a result, the photoelectric signal output from the photo detector contains the information related to the tilt of the object.
摘要翻译：公开了一种倾斜传感器，用于检测与物体相对于参考平面的倾斜相关的信息。倾斜传感器包括衍射元件，其被设置为根据入射角以衍射效率衍射入射光;以及光电检测器，其检测由所述衍射元件衍射的衍射光并输出光电信号。由于衍射元件的衍射效率随着入射角度的变化而变化，所以来自衍射元件的衍射光的强度变化。结果，从光电检测器输出的光电信号包含与物体的倾斜有关的信息。

13. 发明授权

US07366079B2 Optical pickup device and optical disk drive using the same 失效
标题翻译：光拾取装置和使用其的光盘驱动器
公开(公告)号：US07366079B2
公开(公告)日：2008-04-29
申请号：US11600892
申请日：2006-11-17
申请人： Tetsuya Ogata
发明人： Tetsuya Ogata
IPC分类号： G11B7/00
CPC分类号： G11B7/1398 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1359 , G11B7/1369 , G11B7/1378 , G11B7/22 , G11B2007/0006
摘要： An optical pickup device includes a light source unit an optical system which leads a return light beam to a predetermined light-receiving location and includes an object lens focusing each light beam from the light source unit to a recording surface of a corresponding storage medium and a photodetector arranged at the light-receiving location. The light source unit includes a plurality of light sources outputting light beams respectively, the plurality of light sources being arranged in proximity to each other, and a divergence-angle changing unit changing an angle of divergence of a light beam output from at least one of the plurality of light sources.
摘要翻译：一种光学拾取装置，包括光源单元，该光学系统将返回光束引导到预定的光接收位置，并且包括将来自光源单元的每个光束聚焦到相应的存储介质的记录表面的物镜，以及光电检测器布置在光接收位置。光源单元包括分别输出光束的多个光源，多个光源被布置成彼此靠近;发散角改变单元，改变从至少一个光源输出的光束的发散角多个光源。

14. 发明授权

US07264267B2 Head-protective airbag device 有权
标题翻译：头部保护安全气囊装置
公开(公告)号：US07264267B2
公开(公告)日：2007-09-04
申请号：US10500465
申请日：2003-03-05
申请人： Masao Kino , Toshinori Tanase , Tetsuya Ogata , Yoshio Mizuno , Toru Koyama
发明人： Masao Kino , Toshinori Tanase , Tetsuya Ogata , Yoshio Mizuno , Toru Koyama
IPC分类号： B60R21/16
CPC分类号： B60R21/2346 , B60R21/213 , B60R21/232 , B60R21/2338 , B60R21/2342 , B60R21/237 , B60R2021/23316 , B60R2021/23386
摘要： The head-protecting airbag device (M1) includes an airbag (12) provided with a gas admissive portion (13) and a non-admissive portion (23). The gas admissive portion (13) includes a gas feed passage (14) for feeding inflation gas G toward both front and rearwards of the vehicle, and a plurality of vertical chambers (17) juxtaposed along front-rear direction of the vehicle. Each of the vertical chambers (17) includes a communication port at its upper end for communicating with the gas feed passage (14). The substantial lengths of a vehicle's outer wall (13b) and an inner wall (13a) of the airbag (12) are differentiated from each other by a belt (31) in the periphery (19) of the communication port (18). Thus the periphery (19) of the communication port (18) guides inflation gas (G) obliquely down and toward the vehicle's exterior (O) when inflation gas (G) flows into the vertical chamber (17) via the communication port. The head-protecting airbag device (M1) is made compact and improves workability in the mounting work on the vehicle while ensuring downward deployment of the airbag (12) along the window (W).
摘要翻译：头部保护用安全气囊装置（M 1）具备设置有气体容纳部（13）和非受光部（23）的气囊（12）。气体容纳部分（13）包括用于向车辆前后两侧供给充气气体G的气体供给通道（14）和沿车辆前后方向并置的多个垂直室（17）。每个垂直室（17）在其上端包括与气体供给通道（14）连通的连通口。车辆的外壁（13b）和气囊（12）的内壁（13a）的相当长度通过连通口（18）的周边（19）中的皮带（31）彼此不同，。因此，当充气气体（G）经由连通口流入垂直室（17）时，连通口（18）的周边（19）向下倾斜地朝向车辆外部（O）引导充气气体（G）。头部保护气囊装置（M1）紧凑并且提高了在车辆上的安装作业中的可操作性，同时确保了气囊（12）沿着窗口（W）向下展开。

15. 发明授权

US08295146B2 Extraction optical system, optical pick-up device and optical disc apparatus 失效
标题翻译：提取光学系统，光学拾取装置和光盘装置
公开(公告)号：US08295146B2
公开(公告)日：2012-10-23
申请号：US11581397
申请日：2006-10-17
申请人： Tetsuya Ogata
发明人： Tetsuya Ogata
IPC分类号： G11B7/135
CPC分类号： G11B7/1365 , G11B7/1356 , G11B7/1362 , G11B7/1378 , G11B7/1381 , G11B2007/0013
摘要： An extraction optical system for use in an optical pick-up device receiving a reflected light from an optical disc having a plurality of recording layers is provided. The extraction optical system extracts from a light in which a signal light component from an access target recording layer of the plurality of recording layers and a stray light component from a recording layer other than the access target recording layer of the plurality of recording layers are mixed, the signal light component from the access target recording layer of the plurality of recording layers. The extraction optical system includes a condensing optical element arranged in an optical path of the light and condensing the light, and a selective optical system to which the light condensed by the condensing optical element is incident and reflecting a light primarily containing the signal light component.
摘要翻译：提供一种用于接收来自具有多个记录层的光盘的反射光的光学拾取装置中的提取光学系统。提取光学系统从其中混合来自多个记录层的访问目标记录层的信号光分量和来自多个记录层中的存取目标记录层以外的记录层的杂散光分量的光混合来自多个记录层的存取目标记录层的信号光分量。提取光学系统包括布置在光的光路中并聚光的聚光光学元件以及由聚光光学元件聚光的光入射到其上并且反射主要包含信号光分量的光的选择性光学系统。

16. 发明申请

US20100253827A1 OPTICAL MODULE AND IMAGING DEVICE 有权
标题翻译：光学模块和成像装置
公开(公告)号：US20100253827A1
公开(公告)日：2010-10-07
申请号：US12159489
申请日：2006-12-27
申请人： Shojiro Kawakami , Tetsuya Ogata
发明人： Shojiro Kawakami , Tetsuya Ogata
IPC分类号： H04N5/225
CPC分类号： G02B27/288 , G02B27/286
摘要： It is an object of the present invention to provide an optical module which can extract only light components satisfying predetermined conditions, and an imaging device comprising the optical module. The optical module (10) comprises a first plate-like optical element (4) formed with a ¼ wavelength plate portion (1) and a −¼ wavelength plate portion (2) alternately jointed together at a joint portion (3), and a second plate-like optical element (8) formed with a ¼ wavelength plate portion (5) and a −¼ wavelength plate portion (6) alternately jointed together at a joint portion (7), wherein the first plate-like optical element (4) and the second plate-like optical element (8) are parallel, and the ¼ wavelength plate portion (1) of the first plate-like optical element (4) and the −¼ wavelength plate portion (6) of the second plate-like optical element (8) are overlapped across a gap (9).
摘要翻译：本发明的目的是提供一种只能提取满足预定条件的光成分的光学模块和包括该光学模块的成像装置。光学模块（10）包括形成有1/4波长板部分（1）的第一板状光学元件（4）和在接合部分（3）交替地接合在一起的1/4波片部分（2），并且第二板状光学元件（8），其形成有在接合部（7）交替接合的1/4波片部（5）和1/4波片部（6），其中，第一板状光学元件（4））和第二板状光学元件（8）平行，并且第一板状光学元件（4）的1/4波片部分（1）和第二板状光学元件的1/4波片部分（6）（8）重叠在间隙（9）上。

17. 发明授权

US07751286B2 Optical pickup unit and information recording apparatus using the same 失效
标题翻译：光拾取单元及使用其的信息记录装置
公开(公告)号：US07751286B2
公开(公告)日：2010-07-06
申请号：US11453066
申请日：2006-06-15
申请人： Tetsuya Ogata , Tatsuo Mikami
发明人： Tetsuya Ogata , Tatsuo Mikami
IPC分类号： G11B7/09
CPC分类号： G11B7/1353 , G11B7/007 , G11B7/0903 , G11B7/0943 , G11B2007/0013
摘要： An optical pickup unit for recording information on and/or reproducing information from a multilayer information recording medium including multiple recording surfaces in each of which a guide groove on which the information is to be recorded is spirally formed is disclosed. The optical pickup unit includes a light source, a diffraction element configured to split the light beam emitted from the light source into a main light beam and first and second sub light beams, an objective lens for focusing the main and sub light beams onto a recording surface of the multilayer information recording medium, and multiple light receiving elements each divided into light receiving parts so as to receive the main and sub light beams reflected from the recording surface. The focused first and second sub light beams are disposed at respective positions at least 3/2 tracks away from the focused main light beam on the recording surface.
摘要翻译：公开了一种用于从包括多个记录表面的多层信息记录介质中记录信息和/或再现信息的光学拾取单元，其中每个记录有要记录信息的引导槽被螺旋地形成。光拾取单元包括光源，被配置为将从光源发射的光束分成主光束和第一和第二子光束的衍射元件，用于将主光束和次光束聚焦到记录多层信息记录介质的表面，以及分别被光接收部分接收从记录表面反射的主光束和副光束的多个光接收元件。聚焦的第一和第二子光束被设置在离记录表面上的聚焦主光束至少3/2个磁道的相应位置处。

18. 发明授权

US07660226B2 Optical system, optical pickup apparatus, and optical disk apparatus 失效
公开(公告)号：US07660226B2
公开(公告)日：2010-02-09
申请号：US10593409
申请日：2006-03-02
申请人： Tetsuya Ogata
发明人： Tetsuya Ogata
IPC分类号： G11B7/00
CPC分类号： G11B7/1395 , G11B7/005 , G11B7/1353 , G11B7/1356 , G11B7/1367 , G11B7/1369 , G11B7/1381 , G11B2007/0013
摘要： The present invention discloses an optical system for extracting signal light components from a beam including the signal light components and stray light components. The optical system includes a condensing optical element situated on an optical path of the beam for condensing the beam, a polarization changing unit for changing the state of polarization of at least one of the signal light components and the stray light components included in the incident beam transmitted through the condensing optical element, and an extracting element for extracting the signal light components included in the beam transmitted through the polarization changing unit.

19. 发明授权

US07492694B2 Optical pickup device and optical disk drive using the same 有权
标题翻译：光拾取装置和使用其的光盘驱动器
公开(公告)号：US07492694B2
公开(公告)日：2009-02-17
申请号：US11436660
申请日：2006-05-19
申请人： Tetsuya Ogata
发明人： Tetsuya Ogata
IPC分类号： G11B7/00
CPC分类号： G11B7/1398 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1359 , G11B7/1369 , G11B7/1378 , G11B7/22 , G11B2007/0006
摘要： An optical pickup device includes a light source unit an optical system which leads a return light beam to a predetermined light-receiving location and includes an object lens focusing each light beam from the light source unit to a recording surface of a corresponding storage medium and a photodetector arranged at the light-receiving location. The light source unit includes a plurality of light sources outputting light beams respectively, the plurality of light sources being arranged in proximity to each other, and a divergence-angle changing unit changing an angle of divergence of a light beam output from at least one of the plurality of light sources.
摘要翻译：一种光学拾取装置，包括光源单元，该光学系统将返回光束引导到预定的光接收位置，并且包括将来自光源单元的每个光束聚焦到相应的存储介质的记录表面的物镜，以及光电检测器布置在光接收位置。光源单元包括分别输出光束的多个光源，多个光源被布置成彼此靠近;发散角改变单元，改变从至少一个光源输出的光束的发散角多个光源。

20. 发明申请

US20060227679A1 Optical pickup unit and information recording apparatus using the same 失效
标题翻译：光拾取单元及使用其的信息记录装置
公开(公告)号：US20060227679A1
公开(公告)日：2006-10-12
申请号：US11453066
申请日：2006-06-15
申请人： Tetsuya Ogata , Tatsuo Mikami
发明人： Tetsuya Ogata , Tatsuo Mikami
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/007 , G11B7/0903 , G11B7/0943 , G11B2007/0013
摘要： An optical pickup unit for recording information on and/or reproducing information from a multilayer information recording medium including multiple recording surfaces in each of which a guide groove on which the information is to be recorded is spirally formed is disclosed. The optical pickup unit includes a light source, a diffraction element configured to split the light beam emitted from the light source into a main light beam and first and second sub light beams, an objective lens for focusing the main and sub light beams onto a recording surface of the multilayer information recording medium, and multiple light receiving elements each divided into light receiving parts so as to receive the main and sub light beams reflected from the recording surface. The focused first and second sub light beams are disposed at respective positions at least 3/2 tracks away from the focused main light beam on the recording surface.
摘要翻译：公开了一种用于从包括多个记录表面的多层信息记录介质中记录信息和/或再现信息的光学拾取单元，其中每个记录有要记录信息的引导槽被螺旋地形成。光拾取单元包括光源，被配置为将从光源发射的光束分成主光束和第一和第二子光束的衍射元件，用于将主光束和次光束聚焦到记录多层信息记录介质的表面，以及分别被光接收部分接收从记录表面反射的主光束和副光束的多个光接收元件。聚焦的第一和第二子光束被设置在离记录表面上的聚焦主光束至少3/2个磁道的相应位置处。

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