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21. 发明授权

US5687155A Optical integrating element and integration type optical pickup device using the same 失效
标题翻译：光学积分元件和使用其的集成型光学拾取装置
公开(公告)号：US5687155A
公开(公告)日：1997-11-11
申请号：US601783
申请日：1996-02-15
申请人： Masaharu Fukakusa , Taiichi Mori , Shogo Horinouchi
发明人： Masaharu Fukakusa , Taiichi Mori , Shogo Horinouchi
IPC分类号： G02B6/12 , G11B7/09 , G11B7/12 , G11B7/125 , G11B7/13 , G11B7/135 , G11B7/22
CPC分类号： G11B7/131 , G11B7/093 , G11B7/123 , G11B7/127 , G11B7/1353 , G11B7/0903 , G11B7/0908 , G11B7/0916 , G11B7/22
摘要： An optical integration element of the invention comprises a substrate possessing a light emitting element for emitting light, and a receiving sensor for receiving reflected light, an incident part composed of an optical transparent material for receiving the light from the light emitting element, a first reflecting part for reflecting the light entering from the incident part, a second reflecting part for reflecting by converting the light from the first reflecting part into nearly parallel light or convergent light, a condensing part for condensing the light from the second reflecting part, and an optical member forming an optical path transforming part for guiding the reflected light into the receiving sensor.
摘要翻译：本发明的光学积分元件包括具有用于发光的发光元件的基板和用于接收反射光的接收传感器，由用于接收来自发光元件的光的光学透明材料构成的入射部分，第一反射用于反射从入射部分入射的光的部分，用于通过将来自第一反射部分的光转换成几乎平行的光或会聚光来反射的第二反射部分，用于会聚来自第二反射部分的光的聚光部分和光学形成用于将反射光引导到接收传感器中的光路变换部件。

22. 发明授权

US08208360B2 Optical pickup device and optical disk driver 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：US08208360B2
公开(公告)日：2012-06-26
申请号：US12568520
申请日：2009-09-28
申请人： Masaharu Fukakusa
发明人： Masaharu Fukakusa
IPC分类号： G11B7/00
CPC分类号： G11B7/1378 , G02B5/189 , G11B7/08582 , G11B7/0909 , G11B7/131 , G11B7/1362 , G11B7/1381 , G11B2007/0006
摘要： A light source, an objective lens, and an astigmatism generation element producing for light for focus control, and an optical receiver are provided. The astigmatism generation element is interposed between the objective lens and the optical receiver and produces focal points in front of and behind the optical receiver within two mutually orthogonal cross-sectional planes including an optical axis of the reflected light. The astigmatism generation element is a Fresnel mirror that has a plurality of orbicular zones and steps connecting adjacent orbicular zones to each other and that takes the orbicular zones as reflecting mirrors. A depth “d” of the steps is set substantially one-half of a wavelength λ, and a depth d1 of the innermost orbicular zone of the orbicular zones is made larger than the depth d of the steps. The influence of the steps of the Fresnel mirror is minimized, so that a superior servo characteristic can be exhibited.
摘要翻译：提供了一种用于聚焦控制的光产生光源，物镜和散光产生元件，以及光接收器。像散生成元件插入在物镜和光接收器之间，并且在包括反射光的光轴的两个相互正交的横截面内产生在光接收器前面和后面的焦点。像散生成元件是菲涅耳镜，其具有多个环形区域和将相邻的轮带区域彼此连接的步骤，并且将轮状区域作为反射镜。步骤的深度“d”基本上设定为波长λ的一半，并且使圆形区域的最内圈状区域的深度d1大于台阶的深度d。菲涅耳镜的步骤的影响被最小化，从而可以显示出优异的伺服特性。

23. 发明授权

US07889620B2 Optical pickup device and optical disk device 有权
标题翻译：光拾取装置和光盘装置
公开(公告)号：US07889620B2
公开(公告)日：2011-02-15
申请号：US12187900
申请日：2008-08-07
申请人： Masaharu Fukakusa , Hideki Yoshinaka , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
发明人： Masaharu Fukakusa , Hideki Yoshinaka , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/0909 , G11B7/131 , G11B7/1362 , G11B2007/0006
摘要： A light source emits light with a first wavelength and light with a second wavelength longer than the first wavelength toward an optical disk from adjacent positions. An optical receiver detects light reflected from the optical disk. An astigmatism-generating element generates light used for focus control in a condition where a focusing position on one of two perpendicular cross sections including an optical axis of the light reflected from the optical disk is located ahead of the optical receiver and a focusing position on the other cross section is located behind the optical receiver are included. The astigmatism-generating element is a Fresnel mirror configured to include a plurality of reflecting mirrors. A level difference between the reflecting mirrors adjacent to each other is distributed in a range from a depth of substantially (natural number/2) times the first wavelength to (natural number/2) times the second wavelength.
摘要翻译：光源将第一波长的光和比第一波长长的第二波长的光从相邻的位置发射到光盘。光接收器检测从光盘反射的光。散光产生元件产生用于聚焦控制的光，其中在包括从光盘反射的光的光轴的两个垂直横截面之一上的聚焦位置位于光接收器之前的聚焦位置和其他横截面位于光接收器后面。散光产生元件是被配置为包括多个反射镜的菲涅耳镜。彼此相邻的反射镜之间的电平差分布在从第一波长的大致（自然数/ 2）倍到第二波长的（自然数/ 2）倍的范围内。

24. 发明授权

US07738347B2 Optical pickup device and optical disk drive 失效
标题翻译：光学拾取装置和光盘驱动器
公开(公告)号：US07738347B2
公开(公告)日：2010-06-15
申请号：US11850536
申请日：2007-09-05
申请人： Mayumi Tsukamoto , Masaharu Fukakusa , Hiroshi Sato , Eizo Ono
发明人： Mayumi Tsukamoto , Masaharu Fukakusa , Hiroshi Sato , Eizo Ono
IPC分类号： G11B7/00
CPC分类号： G11B7/1378 , G11B7/0909 , G11B2007/0006 , G11B2007/13722
摘要： An optical pickup device includes: a laser source for emitting, to an optical disk, a laser beam having a wavelength λ1 and a laser beam having a wavelength λ2, which is longer than the wavelength λ1; a light receiver, for receiving laser beams that are reflected by the optical disk; a beam splitter, for directing, to the light receiver, the laser beams reflected by the optical disk; and an astigmatism generation element, located between the beam splitter and the light receiver, for generating the laser beams to be used for focusing control, by designating as the front of the light receiver a focal point on one of the intersecting cross sections that include the light axes of the laser beams, and by designating as the rear of the light receiver, a focal point on the other cross section, wherein the astigmatism generation element is an optical element, which is like a Fresnel lens, whose step depth is substantially a natural number times either the wavelength λ1 or the wavelength λ2.
摘要翻译：光学拾取装置包括：激光源，用于向光盘发射波长λ1的激光束和比波长λ1长的具有波长λ2的激光束; 光接收器，用于接收由光盘反射的激光束; 分束器，用于将由光盘反射的激光束引导到光接收器; 以及位于分束器和光接收器之间的用于产生用于聚焦控制的激光束的像散生成元件，通过将光接收器的前部指定为包括激光束的光轴，并且通过将光接收器的后部指定为另一横截面上的焦点，其中像散生成元件是像菲涅耳透镜的光学元件，其阶梯深度基本上是自然数为波长λ1或波长λ2。

25. 发明申请

US20100080105A1 Optical Pickup Device and Optical Disk Driver 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：US20100080105A1
公开(公告)日：2010-04-01
申请号：US12568520
申请日：2009-09-28
申请人： Masaharu Fukakusa
发明人： Masaharu Fukakusa
IPC分类号： G11B7/135
CPC分类号： G11B7/1378 , G02B5/189 , G11B7/08582 , G11B7/0909 , G11B7/131 , G11B7/1362 , G11B7/1381 , G11B2007/0006
摘要： A light source, an objective lens, and an astigmatism generation element producing for light for focus control, and an optical receiver are provided. The astigmatism generation element is interposed between the objective lens and the optical receiver and produces focal points in front of and behind the optical receiver within two mutually orthogonal cross-sectional planes including an optical axis of the reflected light. The astigmatism generation element is a Fresnel mirror that has a plurality of orbicular zones and steps connecting adjacent orbicular zones to each other and that takes the orbicular zones as reflecting mirrors. A depth “d” of the steps is set substantially one-half of a wavelength λ, and a depth d1 of the innermost orbicular zone of the orbicular zones is made larger than the depth d of the steps. The influence of the steps of the Fresnel mirror is minimized, so that a superior servo characteristic can be exhibited.
摘要翻译：提供了一种用于聚焦控制的光产生光源，物镜和散光产生元件，以及光接收器。像散生成元件插入在物镜和光接收器之间，并且在包括反射光的光轴的两个相互正交的横截面内产生在光接收器前面和后面的焦点。像散生成元件是菲涅耳镜，其具有多个环形区域和将相邻的轮带区域彼此连接的步骤，并且将轮状区域作为反射镜。步骤的深度“d”基本上设定为波长λ的一半，并且使圆形区域的最内圈状区域的深度d1大于台阶的深度d。菲涅耳镜的步骤的影响被最小化，从而可以显示出优异的伺服特性。

26. 发明申请

US20060081761A1 Optical pickup apparatus and optical disk apparatus 审中-公开
标题翻译：光拾取装置和光盘装置
公开(公告)号：US20060081761A1
公开(公告)日：2006-04-20
申请号：US11249766
申请日：2005-10-14
申请人： Hiroshi Tanigawa , Eizo Ono , Mitsuhiro Matsumoto , Toshihiro Koga , Masaharu Fukakusa , Jiro Mimasa , Akihiro Imayoshi , Minoru Fujita , Takeshi Fujishima
发明人： Hiroshi Tanigawa , Eizo Ono , Mitsuhiro Matsumoto , Toshihiro Koga , Masaharu Fukakusa , Jiro Mimasa , Akihiro Imayoshi , Minoru Fujita , Takeshi Fujishima
IPC分类号： G02B27/40
CPC分类号： G11B7/1275 , G11B7/1353 , G11B7/1359 , G11B7/1381 , G11B2007/0006
摘要： An optical pickup apparatus, comprises: a light source in which a plurality of light emitting points having different wavelengths are provided; a light receiving unit, receiving light reflected from an optical disk to produce an electric signal; and an optical system, collecting light emitted from the respective light emitting points to the optical disk and conducting the light reflected from the optical disk to the light receiving unit; wherein the optical system includes a filter which converts the light emitted from the respective light emitting points into a predetermined optical intensity distribution.
摘要翻译：一种光拾取装置，包括：其中设置有多个不同波长的发光点的光源; 光接收单元，接收从光盘反射的光以产生电信号; 以及光学系统，将从各个发光点发射的光收集到光盘并将从光盘反射的光传导到光接收单元; 其中所述光学系统包括将从各个发光点发射的光转换成预定光强度分布的滤光器。

27. 发明申请

US20050169151A1 Optical pickup and optical disk apparatus 失效
标题翻译：光学拾取和光盘设备
公开(公告)号：US20050169151A1
公开(公告)日：2005-08-04
申请号：US11044633
申请日：2005-01-28
申请人： Masaharu Fukakusa , Mitsuhiro Matsumoto , Jiro Mimasa , Hiroshi Tanigawa , Hiroshi Kamei , Toshiharu Kimura , Mitsugu Adachi , Hiroshi Iwabuchi , Eiichiro Nakao
发明人： Masaharu Fukakusa , Mitsuhiro Matsumoto , Jiro Mimasa , Hiroshi Tanigawa , Hiroshi Kamei , Toshiharu Kimura , Mitsugu Adachi , Hiroshi Iwabuchi , Eiichiro Nakao
IPC分类号： G11B7/00 , G11B7/125 , G11B7/135 , G11B7/22
CPC分类号： G11B7/1275 , G11B7/1395 , G11B7/22
摘要： An optical pickup and an optical disk apparatus of the invention includes a light source 1 mounted with a light-emitting element constituted of a monoblock on a surface of a plate 6 and emitting plural light beams, a light-receiving element 2, optical members 4, 5 and a coupling base 3 for coupling the light source 1, the light-receiving element 2 and the optical members 4, 5, wherein a light from the light source 1 is directed through the optical members 4, 5 toward an optical disk, and a returning light from the optical disk is guided through the optical members 4, 5 to the light-receiving element 2, characterized in that the plate 6 provided in the light source 1 and the coupling base 3 are adjoined by a solder.
摘要翻译：本发明的光拾取器和光盘装置包括：光源1，其安装有由板6的表面上的整体构成的发光元件并发射多个光束;光接收元件2，光学元件4 5和用于耦合光源1，光接收元件2和光学构件4,5的耦合基座3，其中来自光源1的光通过光学构件4,5朝向光盘引导，并且来自光盘的返回光被引导通过光学部件4,5连接到光接收元件2，其特征在于，设置在光源1中的板6和耦合基座3与焊料相邻。

28. 发明授权

US5812518A Floating-type optical head having incorporated therein a floating slider and an optical device which floats with the slider, includes a condensing unit and is supported movably relative to the floating slider 失效
标题翻译：其中结合有浮动滑块的浮动型光学头和浮动滑块的光学装置包括一个聚光单元，并相对于浮动滑块可移动地被支撑
公开(公告)号：US5812518A
公开(公告)日：1998-09-22
申请号：US755774
申请日：1996-11-22
申请人： Masaharu Fukakusa
发明人： Masaharu Fukakusa
IPC分类号： G11B7/09 , G11B7/12 , G11B19/00
CPC分类号： G11B7/1353 , G11B7/0925 , G11B7/122 , G11B7/123
摘要： A floating-type optical head includes a floating slider for floating over a medium as a result of an airflow generated on the recording surface of the medium, an optical device including at least a light condensing unit for condensing a light beam, and a support unit to which the optical device is attached. The support unit elastically supports the optical device relative to the floating slider such that the optical device is movable in at least a substantially perpendicular direction relative to the recording surface of the medium. The optical device floats together with the floating slider over the medium. The floating slider has a through-hole formed in its center, and the support unit supports the optical device movably in the through-hole. The support unit includes an elastic element connecting the floating slider and the optical device. The optical head thus includes a separated slider and an optical device, wherein at least either the optical device or the slider is moved thereby performing at least tracking or focusing.
摘要翻译：浮动型光学头包括浮动滑块，用于由于在介质的记录表面上产生的气流而在介质上浮动，至少包括用于聚光光束的聚光单元的光学装置和支撑单元光学装置附接到该装置。支撑单元相对于浮动滑动件弹性地支撑光学装置，使得光学装置可相对于介质的记录表面至少基本垂直的方向移动。光学装置与浮动滑块一起浮在介质上。浮动滑块具有形成在其中心的通孔，并且支撑单元可移动地支撑在通孔中的光学装置。支撑单元包括连接浮动滑块和光学装置的弹性元件。因此，光头包括分离的滑块和光学装置，其中移动光学装置或滑块中的至少一个，从而执行至少跟踪或聚焦。

29. 发明授权

US5615203A Floating-type optical head having incorporated therein a floating slider and an optical device which floats with the slider, includes a light source, condensing unit and photodetector and is supported movably relative to the floating slider 失效
标题翻译：其中结合有浮动滑块的浮动型光学头和浮动滑块的光学装置包括光源，聚光单元和光电检测器，并且相对于浮动滑块可移动地被支撑
公开(公告)号：US5615203A
公开(公告)日：1997-03-25
申请号：US339666
申请日：1994-11-14
申请人： Masaharu Fukakusa
发明人： Masaharu Fukakusa
IPC分类号： G11B7/09 , G11B7/12 , G11B19/00
CPC分类号： G11B7/1353 , G11B7/0925 , G11B7/122 , G11B7/123
摘要： There is disclosed a floating-type optical head comprising a separated slider and an optical device, wherein at least either the optical device or the slider is moved thereby performing at least either tracking or focusing.
摘要翻译：公开了一种浮动型光学头，其包括分离的滑块和光学装置，其中移动光学装置或滑块中的至少一个，从而执行至少跟踪或聚焦。

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