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1. 发明授权

US5532987A Focus error detecting device 失效
标题翻译：聚焦误差检测装置
公开(公告)号：US5532987A
公开(公告)日：1996-07-02
申请号：US427811
申请日：1995-04-26
申请人： Teruo Fujita , Morihiro Karaki , Mitsuru Irie , Kazuhiko Nakane
发明人： Teruo Fujita , Morihiro Karaki , Mitsuru Irie , Kazuhiko Nakane
IPC分类号： G11B7/007 , G11B7/09 , G11B7/095 , G11B7/13 , G11B7/135 , G11B7/14 , G11B7/22
CPC分类号： G11B7/133 , G11B7/00718 , G11B7/0908 , G11B7/0916 , G11B7/0933 , G11B7/0935 , G11B7/094 , G11B7/0948 , G11B7/0956 , G11B7/1353 , G11B7/1381 , G11B7/14 , G11B7/22 , G11B7/0909
摘要： A focus error detecting device includes a reflected beam obscurer and a two-division photodetector. The observer obscures a part of the reflected beam. The two-division photodetector includes first and second light receiving sections separated from each other by a division band region which receive the reflected light beam not obscured by the obscurer. A focus error signal is produced based on the output of each light receiving section. Each light receiving section has an array of tapered projections along its edge in the division band region. Alteratively, the light receiving sections have a main part with an edge coincident with an edge of the division band region, and groups of light receiving stripes extending in a direction parallel with the edges of the main part.
摘要翻译：聚焦误差检测装置包括反射光束遮蔽物和二分光电检测器。观察者遮挡了反射光束的一部分。二分光电检测器包括通过接收不被遮挡物遮挡的反射光束的分割带区彼此分离的第一和第二光接收部分。基于每个光接收部分的输出产生聚焦误差信号。每个光接收部分沿其分割带区域的边缘具有锥形突起的阵列。换句话说，光接收部具有与分带区域的边缘重合的边缘的主要部分和沿与主要部分的边缘平行的方向延伸的光接收条纹组。

2. 发明授权

US5687032A Optical device inclination angle adjuster 失效
标题翻译：光学装置倾斜角度调节器
公开(公告)号：US5687032A
公开(公告)日：1997-11-11
申请号：US592178
申请日：1996-01-26
申请人： Nobuo Takeshita , Teruo Fujita , Morihiro Karaki , Mitsuru Irie , Kazuhiko Nakane , Kenjiro Kime , Hideaki Kobachi
发明人： Nobuo Takeshita , Teruo Fujita , Morihiro Karaki , Mitsuru Irie , Kazuhiko Nakane , Kenjiro Kime , Hideaki Kobachi
IPC分类号： G11B7/007 , G11B7/09 , G11B7/095 , G11B7/13 , G11B7/135 , G11B7/14 , G11B7/22 , G02B7/02
CPC分类号： G11B7/133 , G11B7/00718 , G11B7/0908 , G11B7/0916 , G11B7/0933 , G11B7/0935 , G11B7/094 , G11B7/0948 , G11B7/0956 , G11B7/1353 , G11B7/1381 , G11B7/14 , G11B7/22 , G11B7/0909
摘要： An optical device inclination angle adjuster for adjusting an optical axis of an optical device. The optical device has an optical axis and a peripheral portion, and is held by a holder. The adjuster includes an annular plate inserted between the optical device and the holder. The annular plate is in alignment with the peripheral portion of the optical device, and has an opening with an axis in alignment with the optical axis of the optical device to permit passage of light through the opening of the annular plate and through the optical device. A first pair of projections are formed between the annular plate and the optical device. The first pair of projections are disposed diametrically opposite to each other with respect to the optical axis and project in a direction parallel to the optical axis. A second pair of projections are formed between the annular plate and the holder. The second pair of projections are disposed diametrically opposite to each other with respect to the optical axis and project in a direction parallel to the optical axis. The first pair of projections and the second pair of projections are disposed at different rotary angles about the optical axis; whereby the inclination angle is adjusted by rotating the optical device about the first pair of projections or about the second pair of projections.
摘要翻译：一种用于调节光学装置的光轴的光学装置倾斜角度调节器。光学装置具有光轴和周边部分，并由保持器保持。调节器包括插入在光学装置和保持器之间的环形板。环形板与光学装置的周边部分对准，并且具有与光学装置的光轴对准的轴线的开口，以允许光通过环形板的开口并通过光学装置。第一对突起形成在环形板和光学装置之间。第一对突起相对于光轴彼此沿径向相对设置，并且在平行于光轴的方向上突出。第二对突起形成在环形板和支架之间。第二对突起相对于光轴彼此沿径向相对设置，并且沿与光轴平行的方向突出。第一对突起和第二对突起以围绕光轴的不同旋转角设置; 由此通过围绕第一对突起或围绕第二对突起旋转光学装置来调节倾斜角度。

3. 发明授权

US5453962A Focus error detecting device 失效
标题翻译：聚焦误差检测装置
公开(公告)号：US5453962A
公开(公告)日：1995-09-26
申请号：US109724
申请日：1993-08-19
申请人： Teruo Fujita , Morihiro Karaki , Mitsuru Irie , Kazuhiko Nakane
发明人： Teruo Fujita , Morihiro Karaki , Mitsuru Irie , Kazuhiko Nakane
IPC分类号： G11B7/007 , G11B7/09 , G11B7/095 , G11B7/13 , G11B7/135 , G11B7/14 , G11B7/22
CPC分类号： G11B7/133 , G11B7/00718 , G11B7/0908 , G11B7/0916 , G11B7/0933 , G11B7/0935 , G11B7/094 , G11B7/0948 , G11B7/0956 , G11B7/1353 , G11B7/1381 , G11B7/14 , G11B7/22 , G11B7/0909
摘要： A focus error detecting device includes a reflected beam splitter and at least two two-division photodetectors. The reflected beam splitter includes a diffraction grating part and a non-diffraction grating part separated by a line dividing a reflected beam. The dividing line projects to a line orthogonal to a guide groove on the information recording medium. The diffraction grating part produces a first split beam, and non-diffraction grating part produces a second split beam. Each two-division photodetector receives one of the first and second split beams incident and their light receiving sections, and produces a signal for effecting focus control.
摘要翻译：聚焦误差检测装置包括反射分束器和至少两个二分光电检测器。反射分束器包括由划分反射光束的线分开的衍射光栅部分和非衍射光栅部分。分割线突出到与信息记录介质上的引导槽正交的线上。衍射光栅部分产生第一分束，非衍射光栅部分产生第二分束。每个二分光电检测器接收入射的第一和第二分束光束及其光接收部分中的一个，并产生用于进行聚焦控制的信号。

4. 发明授权

US06108283A Optical head having focus error detection and tracking error detection sensors arranged on substantially the same plane 失效
标题翻译：光头具有布置在基本上相同的平面上的聚焦误差检测和跟踪误差检测传感器
公开(公告)号：US06108283A
公开(公告)日：2000-08-22
申请号：US907060
申请日：1997-08-06
申请人： Teruo Fujita , Morihiro Karaki
发明人： Teruo Fujita , Morihiro Karaki
IPC分类号： G11B7/09 , G11B7/13 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0916 , G11B7/131 , G11B7/1365
摘要： Light reflected from an information recording surface is branched into first and second substantially parallel beams. The first beam is directed to a focus error detection system and the second beam is directed to a tracking error detection system. The photodetector includes light receiving sections for the two detection systems. The light receiving sections include Light receiving surfaces and are housed in a single package. A substantially flat plate is placed either in the focus error detection system or in the tracking error detection system, serving to shorten the optical path so as to create a difference in optical path length to the light receiving surfaces between the two detection systems, thereby enlarging the light spot on the light receiving sections for the tracking error detection system. A cylindrical lens placed in the tracking error detection system serves as astigmatism generating and to make the light spot on the light receiving section in the tracking error detection system to be enlarged in one direction. The light receiving surfaces of one detection system have division lines substantially perpendicular to that of the other detection system. The perpendicular division lines are effective in eliminating an inherent problem encountered in the prior art optical head that adjustment of the tracking error detection system affects the adjustment of the focus error detection system.
摘要翻译：从信息记录表面反射的光被分支成第一和第二基本上平行的光束。第一光束被引导到聚焦误差检测系统，第二光束被引导到跟踪误差检测系统。光检测器包括两个检测系统的光接收部分。光接收部分包括光接收表面并且容纳在单个封装中。将基本上平板放置在聚焦误差检测系统或跟踪误差检测系统中，用于缩短光路以便产生与两个检测系统之间的光接收表面的光程长度的差异，从而扩大用于跟踪误差检测系统的光接收部分上的光斑。放置在跟踪误差检测系统中的柱面透镜用作像散生成，并使跟踪误差检测系统中的光接收部分上的光斑在一个方向上扩大。一个检测系统的光接收表面具有基本上垂直于另一个检测系统的划分线。垂直分割线有效地消除了现有技术的光学头中遇到的固有问题，跟踪误差检测系统的调整影响了聚焦误差检测系统的调整。

5. 发明申请

US20060227335A1 Light wavefront measuring instrument, light wavefront measuring method, and light source adjusting method 失效
标题翻译：光波前测量仪，光波前测量方法和光源调节方法
公开(公告)号：US20060227335A1
公开(公告)日：2006-10-12
申请号：US10548838
申请日：2003-11-17
申请人： Nobuo Takeshita , Teruo Fujita , Toshiya Matozaki , Michihiro Tadokoro
发明人： Nobuo Takeshita , Teruo Fujita , Toshiya Matozaki , Michihiro Tadokoro
IPC分类号： G01B9/02
CPC分类号： G11B7/22 , G01J9/02 , G11B7/1359 , G11B7/1367 , G11B7/1376 , G11B7/1381 , G11B7/1392 , G11B7/13927
摘要： A light wavefront measuring apparatus (2, 2a, 42) includes a separating element (7a, 47a) for separating a flux of light which exits from an optical head (1, 31) into a first beam and a second beam, a first interference fringe display section (21, 21a) for displaying interference fringes formed from the first beam, a Dove prism (13, 53) for rotating a wavefront of the second beam around its optical axis (AX2), and a second interference fringe display section (22, 22a) for displaying interference fringes formed from the second beam which passed through it. In adjustment of the light source device, position of a collimator (5) in the optical head (1, 31) is adjusted in optical axis direction so as to approximate the interference fringe patterns displayed in the interference fringe display sections (21, 22, 21a, 22a) each other.
摘要翻译：光波前测量装置（2,2a，42）包括分离元件（7a，47a），用于将从光头（1,31）射出的光束分离成第一光束和第二光束，用于显示由第一光束形成的干涉条纹的第一干涉条纹显示部分（21,21a），用于使第二光束的波前绕其光轴旋转的道威斯棱镜（13,53） SUB>）和第二干涉条纹显示部分（22,22a），用于显示由穿过它的第二光束形成的干涉条纹。在光源装置的调整中，在光头（1,31）中的准直仪（5）的位置在光轴方向上调整为近似于在干涉条纹显示部（21,22）中显示的干涉条纹图案， 21 a，22 a）彼此。

6. 发明授权

US4718052A Head assembly for optical disc 失效
标题翻译：光盘头组件
公开(公告)号：US4718052A
公开(公告)日：1988-01-05
申请号：US781993
申请日：1985-09-30
申请人： Mitsushige Kondo , Shinsuke Shikama , Keizo Kono , Teruo Fujita
发明人： Mitsushige Kondo , Shinsuke Shikama , Keizo Kono , Teruo Fujita
IPC分类号： G11B7/08 , G11B7/09 , G11B7/095
CPC分类号： G11B7/0901 , G11B7/1245
摘要： An optical head assembly for recording information on an optical disc or for taking out information already recorded, the optical head assembly including a semiconductor substrate and a dielectric light conducting layer formed on the substrate, the light conducting layer being internally formed with optical elements for converging laser beam from a laser beam source onto the optical disc and directing the reflected beam from the optical disc surface toward a photo detector. Output signal from the photo detector is used for reading information and also for allowing the optical head assembly to trace a track on the optical disc.
摘要翻译：一种用于在光盘上记录信息或用于取出已经记录的信息的光学头组件，所述光学头组件包括半导体衬底和形成在衬底上的电介质光导层，所述导光层内部形成有用于会聚的光学元件来自激光束源的激光束到光盘上并且将来自光盘表面的反射光束引向光电检测器。来自光电检测器的输出信号用于读取信息，并且还用于允许光学头组件跟踪光盘上的轨道。

7. 发明授权

US06846080B2 Image display apparatus 失效
标题翻译：图像显示装置
公开(公告)号：US06846080B2
公开(公告)日：2005-01-25
申请号：US10635577
申请日：2003-08-07
申请人： Yoko Inoue , Teruo Fujita , Yoshiyuki Goto , Akira Sekiguchi
发明人： Yoko Inoue , Teruo Fujita , Yoshiyuki Goto , Akira Sekiguchi
IPC分类号： G02F1/13 , G02B27/18 , G02F1/133 , G02F1/1335 , G03B21/00 , G03B21/14 , G03B21/26 , G09G5/00 , H01L33/58 , H01L33/60 , H04N9/31
CPC分类号： G03B33/12 , H04N9/3129 , H04N9/315 , H04N9/3155 , H04N9/3164
摘要： An image display apparatus includes a plurality of light emission sources, a drive circuit for pulse-driving the plurality of light emission sources in order in a predetermined period, a moving reflecting mirror for swinging in order in an incidence direction of light from each of the light emission sources in response to the pulse driving timing of each of the light emission sources and reflecting light beams from the light emission sources in order approximately in the same direction, and a combining optical system for guiding the light reflected by the moving reflecting mirror into a light valve.
摘要翻译：图像显示装置包括多个发光源，用于在预定周期内按顺序脉冲驱动多个发光源的驱动电路，用于沿着来自每个发光源的光的入射方向依次摆动的移动反射镜响应于每个发光源的脉冲驱动定时和大致沿相同方向反射来自发光源的光束的发光源，以及用于将由移动反射镜反射的光引导到的组合光学系统一个光阀。

8. 发明授权

US4016926A Electro-magnetic strirrer for continuous casting machine 失效
标题翻译：连续铸造机用电磁搅拌器
公开(公告)号：US4016926A
公开(公告)日：1977-04-12
申请号：US560964
申请日：1975-03-21
申请人： Naohei Yamada , Katsuhiko Yamada , Teruo Fujita
发明人： Naohei Yamada , Katsuhiko Yamada , Teruo Fujita
IPC分类号： B22D27/02 , B22D11/10 , B22D11/115 , B22D11/12
CPC分类号： B22D11/122
摘要： The present invention relates to a rotary magnetic field type stirrer for a continuous metal casting machine which has characteristics as mentioned below. In a two-pole rotary magnetic field type stirrer having poles positioned symmetrically around the central axis of the cast strand in the secondary cooling zone of a continuous casting machine, a pair of electro-magnetic coils each having two or more magnetic poles in the longitudinal direction of the cast strand are placed facing each other with the cast strand inbetween and are so connected as to give opposite polarities to the magnetic poles facing each other, and two or more of such pairs are placed around the central axis of said cast strand, so that a two-pole rotary magnetic field may be generated at two or more locations in the longitudinal direction of the cast strand by causing a single phase alternating current to flow in one pair of said electromagnetic coils and a single phase alternating current of a prescribed phase difference to flow in another pair of electromagnetic coils. By virtue of the above-described arrangement, the unsolidified part of the cast strand is strongly stirred at two or more locations of the cast strand in the secondary cooling zone of the continuous casting machine and the occurrence of defects in the interior of the cast strand is prevented.
摘要翻译：本发明涉及具有下述特征的连续铸造机的旋转磁场型搅拌机。在连续铸造机的二次冷却区中具有围绕铸造线的中心轴对称定位的双极旋转磁场型搅拌器中，一对电磁线圈，每个电磁线圈在纵向上具有两个或更多个磁极铸造线的方向相互放置，其中铸造线彼此相对，并且连接成使得彼此面对的磁极具有相反的极性，并且这些对中的两个或更多个围绕铸线的中心轴线放置，使得可以通过使单相交流在一对所述电磁线圈中流动并且规定的单相交流电流在铸线的纵向方向上的两个或更多个位置处产生两极旋转磁场相位差在另一对电磁线圈中流动。通过上述结构，在连续铸造机的二次冷却区域中的铸造线的两个以上的位置处强力地搅拌铸造股线的非固化部分，并且铸造线内部的缺陷的发生被阻止

9. 发明授权

US07554675B2 Light wavefront measuring instrument, light wavefront measuring method, and light source adjusting method 失效
标题翻译：光波前测量仪，光波前测量方法和光源调节方法
公开(公告)号：US07554675B2
公开(公告)日：2009-06-30
申请号：US10548838
申请日：2003-11-17
申请人： Nobuo Takeshita , Teruo Fujita , Toshiya Matozaki , Michihiro Tadokoro
发明人： Nobuo Takeshita , Teruo Fujita , Toshiya Matozaki , Michihiro Tadokoro
IPC分类号： G01B9/02
CPC分类号： G11B7/22 , G01J9/02 , G11B7/1359 , G11B7/1367 , G11B7/1376 , G11B7/1381 , G11B7/1392 , G11B7/13927
摘要： A light wavefront measuring apparatus (2, 2a, 42) includes a separating element (7a, 47a) for separating a flux of light which exits from an optical head (1, 31) into a first beam and a second beam, a first interference fringe display section (21, 21a) for displaying interference fringes formed from the first beam, a Dove prism (13, 53) for rotating a wavefront of the second beam around its optical axis (AX2), and a second interference fringe display section (22, 22a) for displaying interference fringes formed from the second beam which passed through it. In adjustment of the light source device, position of a collimator (5) in the optical head (1, 31) is adjusted in optical axis direction so as to approximate the interference fringe patterns displayed in the interference fringe display sections (21, 22, 21a, 22a) each other.
摘要翻译：光波前测量装置（2,2a，42）包括分离元件（7a，47a），用于将从光头（1,31）射出的光束分离成第一光束和第二光束，第一干涉用于显示由第一光束形成的干涉条纹的边缘显示部分（21,21a），用于旋转围绕其光轴（AX2）的第二光束的波前的Dove棱镜（13,53）和第二干涉条纹显示部分 22,22a），用于显示由通过它的第二光束形成的干涉条纹。在光源装置的调整中，在光头（1,31）中的准直仪（5）的位置在光轴方向上调整为近似于在干涉条纹显示部（21,22）中显示的干涉条纹图案， 21a，22a）。

10. 发明授权

US5138592A Optical read/write apparatus with improved tracking performance 失效
标题翻译：具有改进的跟踪性能的光学读/写设备
公开(公告)号：US5138592A
公开(公告)日：1992-08-11
申请号：US577769
申请日：1990-09-05
申请人： Teruo Fujita
发明人： Teruo Fujita
IPC分类号： G11B7/09 , G11B7/135
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0943
摘要： An optical read/write apparatus includes an optical device for directing a main scanning spot and a pair of satellite spots, one on either side of the main scanning spot, onto a recording. It further includes a wobbling device for moving the satellite spots in relation to the main scanning spot. The satellite spots are moved with an oscillatory motion in a direction perpendicular to tracks on the recording medium. A tracking control device detects light reflected from the satellite spots, generates a tracking error signal, and moves the main scanning spot according to the tracking error signal in a direction perpendicular to the. This keeps the main scanning spot accurately centered on a track without offset and without wobbling the main scanning spot.
摘要翻译：光学读/写装置包括用于将主扫描点和一对卫星点（主扫描点两侧的一个）引导到记录上的光学装置。它还包括用于相对于主扫描点移动卫星点的摆动装置。卫星点在与记录介质上的轨道垂直的方向上以振荡运动移动。跟踪控制装置检测从卫星点反射的光，产生跟踪误差信号，并根据跟踪误差信号沿垂直于该方向的方向移动主扫描光点。这使得主扫描点准确地集中在轨道上而没有偏移并且不会摆动主扫描点。

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