公开(公告)号：US5742456A

公开(公告)日：1998-04-21

申请号：US608368

申请日：1996-02-28

申请人： Hisao Kinjo ,  Hiromichi Hirayama ,  Ryo Nishima ,  Morio Miwa ,  Masao Mimata ,  Makoto Suzuki

发明人： Hisao Kinjo ,  Hiromichi Hirayama ,  Ryo Nishima ,  Morio Miwa ,  Masao Mimata ,  Makoto Suzuki

IPC分类号： G11B15/60 ,  G11B15/61 ,  G11B5/588

CPC分类号： G11B15/602 ,  G11B15/61

摘要： A magnetic recording/reproducing apparatus with a drum positioning mechanism is provided. The drum positioning mechanism performs track correction to rotate a tape guide drum about a given axis of rotation according to a travel speed of a magnetic tape to orient a head path of magnetic heads at a given angle relative to a lead member which guides movement of a lower edge of the magnetic tape wrapped about the tape guide drum so that the head path coincides with tracks recorded on the magnetic tape correctly. The drum positioning mechanism also performs lead correction to rotate the lead member through a given angle relative to a drum base to eliminate a shift of the lower edge of the magnetic tape from the lead caused by the track correction so that the lower edge of the magnetic tape follows the lead completely. The magnetic recording/reproducing apparatus may also be employed in a recording mode. In the recording mode, the head path is oriented by the track correction at a preselected angle to the lower edge of the magnetic tape.

摘要翻译： 提供具有鼓定位机构的磁记录/重放装置。 滚筒定位机构执行跟踪校正，以根据磁带的行进速度围绕给定的旋转轴旋转磁带引导鼓，以使磁头的头部路径相对于引导部件引导一个给定的角度 磁带的下边缘缠绕在导带鼓周围，使得磁头路径正确地与记录在磁带上的轨道重合。 滚筒定位机构还执行引导校正，以使引线部件相对于滚筒基座旋转给定的角度，以消除由磁道校正引起的磁带的下边缘与引线的移位，从而磁性的下边缘 磁带完全跟随导线。 磁记录/再现装置也可以用于记录模式。 在记录模式中，磁头路径以磁带的下边缘以预定的角度通过轨道校正定向。

公开(公告)号：US5982590A

公开(公告)日：1999-11-09

申请号：US876110

申请日：1997-06-13

申请人： Hisao Kinjo ,  Hiromichi Hirayama ,  Ryo Nishima

发明人： Hisao Kinjo ,  Hiromichi Hirayama ,  Ryo Nishima

IPC分类号： G11B5/53 ,  G11B15/18 ,  G11B15/60 ,  G11B15/61 ,  G11B5/588 ,  G11B15/16

CPC分类号： G11B5/53 ,  G11B15/1841 ,  G11B15/1875 ,  G11B15/602 ,  G11B15/61

摘要： A magnetic recording and reproducing apparatus includes a tape guide drum (10) composed of a lower stationary drum (10A) supported integrally with a drum shaft (18) and an upper rotary drum (10B), a lead member (12) provided separately from the lower drum and composed of an annular portion (52) having a portion for guiding a reference edge Te of a magnetic tape T and a bottom portion (53). The apparatus further includes pivot means provided inside the drum to support and allow the center axis of the drum to tilt with respect to the annular portion of the tape guide.

摘要翻译： 一种磁记录和再现装置，包括由与鼓轴（18）和上旋转鼓（10B）整体支撑的下固定鼓（10A）构成的导带鼓（10），与 所述下鼓由具有用于引导磁带T的参考边缘Te和底部（53）的部分的环形部分（52）组成。 该装置还包括枢转装置，其设置在滚筒内部以支撑并允许滚筒的中心轴线相对于带导向件的环形部分倾斜。

公开(公告)号：US5343348A

公开(公告)日：1994-08-30

申请号：US863565

申请日：1992-04-03

申请人： Ryo Nishima ,  Hisao Kinjo ,  Yoshio Mizuno ,  Katsuyuki Shudo ,  Shigeru Kawase

发明人： Ryo Nishima ,  Hisao Kinjo ,  Yoshio Mizuno ,  Katsuyuki Shudo ,  Shigeru Kawase

IPC分类号： G11B5/53 ,  G11B5/54 ,  G11B5/592

CPC分类号： G11B5/54 ,  G11B5/53

摘要： A magnetic head actuator for displacing a magnetic head on a rotary magnetic head drum in a magnetic recording and reproducing apparatus includes a hollow cylindrical yoke housing a permanent magnet and a central pole therein, providing a magnetic circuit having an air gap. A support shaft axially movably extends through the yoke and has opposite ends positioned outside of the yoke. A coil bobbin is attached to the end of the support shaft which is positioned outside of the open end of the yoke. The coil bobbin supports a coil which is axially movably positioned in the air gap. Two parallel resilient suspension support wings are mounted on the yoke and attached respectively to the opposite ends of the support shaft. A magnetic head holder supporting a magnetic head is mounted on the end of the support shaft near the bottom of the yoke. When the coil is energized, the coil bobbin and hence the support shaft are axially moved to displace the magnetic head to a desired track on a magnetic tape around the rotary magnetic head drum. Since the support shaft is supported by the parallel suspension support wings, the magnetic head is held in good contact with the magnetic tape and prevented from being tilted out of a desired azimuth with respect to the magnetic tape. The magnetic head which is positioned near the bottom of the yoke is free from leakage fluxes from the magnetic circuit.

摘要翻译： 用于使磁记录和再现装置中的旋转磁头鼓上的磁头移位的磁头致动器包括一个中空圆柱形磁轭，其中容纳永磁体和一个中心磁极，提供具有气隙的磁路。 支撑轴轴向可移动地延伸穿过轭，并且具有位于轭的外侧的相对端。 线圈架被安装在支撑轴的位于轭的开口端外侧的端部。 线圈架支撑轴向可移动地定位在气隙中的线圈。 两个平行的弹性悬挂支撑翼安装在轭上并分别附接到支撑轴的相对端。 支撑磁头的磁头支架安装在靠近磁轭底部的支撑轴的端部。 当线圈通电时，线圈架和因此支撑轴被轴向移动，以将磁头移动到围绕旋转磁头鼓的磁带上的期望轨道。 由于支撑轴由平行悬架支撑翼支撑，所以磁头与磁带保持良好的接触并防止相对于磁带倾斜到期望的方位角之外。 位于磁轭底部附近的磁头没有来自磁路的漏磁通。

公开(公告)号：US5448540A

公开(公告)日：1995-09-05

申请号：US200863

申请日：1994-02-22

申请人： Katsuyuki Shudo ,  Hisao Kinjo ,  Yoshio Mizuno ,  Ryo Nishima ,  Shigeru Kawase

发明人： Katsuyuki Shudo ,  Hisao Kinjo ,  Yoshio Mizuno ,  Ryo Nishima ,  Shigeru Kawase

IPC分类号： G11B5/55 ,  G11B7/00

CPC分类号： G11B5/5504

摘要： A device for detecting the position of a recording/reproducing element, which is provided with two position detecting elements having the same input/output characteristics and a device for generating a difference signal representing the difference between output signals of the two position detecting elements. Further, the outputs of the position detecting elements vary correspondingly to change in position of the recording/reproducing element in such a manner to be complementary to each other.

摘要翻译： 一种用于检测记录/再现元件的位置的装置，其设置有具有相同输入/输出特性的两个位置检测元件和用于产生表示两个位置检测元件的输出信号之间的差异的差分信号的装置。 此外，位置检测元件的输出以相互补充的方式相应于记录/再现元件的位置变化而变化。

公开(公告)号：US09028076B2

公开(公告)日：2015-05-12

申请号：US13538063

申请日：2012-06-29

申请人： Ryo Nishima ,  Norihisa Yamamoto ,  Kouichi Kawamura

发明人： Ryo Nishima ,  Norihisa Yamamoto ,  Kouichi Kawamura

IPC分类号： G03B21/16 ,  G03B21/14 ,  H04N9/31

CPC分类号： H04N9/3144 ,  G03B21/145 ,  G03B21/16

摘要： In a projector, a projection unit includes a projection mechanism that projects an image and an air hole that takes in or exhausts air used to dissipate heat generated from a light source included in the projection mechanism. A housing covers the air hole when the projection unit is in a storage position in which the projection unit does not project an image and uncovers the air hole when the projection unit is in a projection position in which the projection unit projects an image. The drive mechanism moves the projection unit or a cover member. An electronic control unit controls the drive mechanism to move the projection unit to the projection position in which an image is projected when receiving a predetermined projection preparation request and move the projection unit to the storage position in which no image is projected when receiving a predetermined storage request.

摘要翻译： 在投影仪中，投影单元包括突出图像的投影机构和吸入或排出用于散发由包括在投影机构中的光源产生的热量的空气的空气孔。 当投影单元处于投影单元不突出图像的存储位置时，当投影单元处于投影单元投射图像的投影位置时，壳体覆盖气孔。 驱动机构移动投影单元或盖构件。 当接收到预定的投影准备请求时，电子控制单元控制驱动机构将投影单元移动到其中投影图像的投影位置，并且当接收预定的存储时将投影单元移动到不投影图像的存储位置 请求。

公开(公告)号：US08373692B2

公开(公告)日：2013-02-12

申请号：US12319997

申请日：2009-01-14

申请人： Yuji Uchiyama ,  Masato Furuya ,  Tatsuru Kobayashi ,  Ryo Nishima ,  Motoshi Tohda ,  Yoshio Fukuzaki ,  Takeshi Makabe ,  Yasuo Ishizaka ,  Akihiro Hamaguchi

发明人： Yuji Uchiyama ,  Masato Furuya ,  Tatsuru Kobayashi ,  Ryo Nishima ,  Motoshi Tohda ,  Yoshio Fukuzaki ,  Takeshi Makabe ,  Yasuo Ishizaka ,  Akihiro Hamaguchi

IPC分类号： G03B21/14 ,  G03B21/26 ,  G03B21/28 ,  G02B26/00 ,  G02B26/08 ,  G02B5/30 ,  G02F1/03

CPC分类号： G09G3/3655 ,  G09G3/3614 ,  G09G2320/0247 ,  G09G2360/145 ,  H04N9/3167 ,  H04N9/3194

摘要： A first linearly polarized bundle of rays of incident rays is converted by optical modulation with an input video signal into a second linearly polarized bundle of rays orthogonal to the first rays in polarization. The first rays pass through a polarizer before optically modulated. A second linearly polarized bundle of rays originally involved in the incident rays is reflected by the polarizer in a first direction. The second rays obtained by the optical modulation are reflected by the polarizer in a second direction. The second rays reflected in the second direction pass through another polarizer. A first linearly polarized bundle of rays involved in the reflected second rays is reflected by the other polarizer. The reflected first rays is detected by an optical sensor that is positioned outside an optical path of the second rays originally involved in the incident rays and reflected in the first direction.

公开(公告)号：US20050185305A1

公开(公告)日：2005-08-25

申请号：US11060379

申请日：2005-02-17

申请人： Ryo Nishima ,  Morihiko Ota

发明人： Ryo Nishima ,  Morihiko Ota

IPC分类号： G02B5/04 ,  G02B5/30 ,  G02B27/28 ,  G02F1/1335 ,  G03B21/00

CPC分类号： G02B27/283

摘要： There is disclosed a method of constructing an optical color separation and synthesis system, in which four first to fourth polarization beam splitters are arranged in such a manner that polarization separating surfaces of the polarization beam splitters form an X-shape, a predetermined gap is formed between facing surfaces of the polarization beam splitters before bonding the polarization beam splitters onto a base platform, and thereafter a frame comprising an opening in a middle portion thereof and a stepped portion to be bonded to an optical function plate in a peripheral portion thereof is secured to any of the first to fourth polarization beam splitters.

摘要翻译： 公开了一种构成光分色合成系统的方法，其中四个第一至第四偏振分束器以偏振分束器的偏振分离表面形成X形的方式排列，形成预定间隙 在将偏振光束分离器接合到基座平台上之前，在偏振分束器的相对表面之间，并且其后包括在其中间部分中的开口的框架和要在其周边部分中结合到光学功能板的阶梯部分被固定 到第一至第四偏振分束器中的任何一个。

公开(公告)号：US07170678B2

公开(公告)日：2007-01-30

申请号：US11060379

申请日：2005-02-17

申请人： Ryo Nishima ,  Morihiko Ota

发明人： Ryo Nishima ,  Morihiko Ota

IPC分类号： G02B5/30 ,  G02B27/14 ,  G02B5/04

CPC分类号： G02B27/283

摘要： An optical color separation and synthesis system is constructed according to a method, in which four first to fourth polarization beam splitters are arranged in such a manner that polarization separating surfaces of the polarization beam splitters form an X-shape, a predetermined gap is formed between facing surfaces of the polarization beam splitters before bonding the polarization beam splitters onto a base platform, and thereafter a frame comprising an opening in a middle portion thereof and a stepped portion to be bonded to an optical function plate in a peripheral portion thereof is secured to any of the first to fourth polarization beam splitters.

摘要翻译： 根据一种方法构造光学色分离和合成系统，其中四个第一至第四偏振分束器以偏振分束器的偏振分离表面形成X形的方式排列，在 在将偏振光束分离器接合到基座平台上之前，偏振分束器的面对表面，然后将包括其中间部分中的开口的框架和待结合到其周边部分中的光学功能板的阶梯部分固定到 任何第一至第四偏振分束器。

公开(公告)号：US20090179882A1

公开(公告)日：2009-07-16

申请号：US12319997

申请日：2009-01-14

申请人： Yuji Uchiyama ,  Masato Furuya ,  Tatsuru Kobayashi ,  Ryo Nishima ,  Motoshi Tohda ,  Yoshio Fukuzaki ,  Takeshi Makabe ,  Yasuo Ishizaka ,  Akihiro Hamaguchi

发明人： Yuji Uchiyama ,  Masato Furuya ,  Tatsuru Kobayashi ,  Ryo Nishima ,  Motoshi Tohda ,  Yoshio Fukuzaki ,  Takeshi Makabe ,  Yasuo Ishizaka ,  Akihiro Hamaguchi

IPC分类号： G09G5/02 ,  G02F1/1335

CPC分类号： G09G3/3655 ,  G09G3/3614 ,  G09G2320/0247 ,  G09G2360/145 ,  H04N9/3167 ,  H04N9/3194

摘要： A first linearly polarized bundle of rays of incident rays is converted by optical modulation with an input video signal into a second linearly polarized bundle of rays orthogonal to the first rays in polarization. The first rays pass through a polarizer before optically modulated. A second linearly polarized bundle of rays originally involved in the incident rays is reflected by the polarizer in a first direction. The second rays obtained by the optical modulation are reflected by the polarizer in a second direction. The second rays reflected in the second direction pass through another polarizer. A first linearly polarized bundle of rays involved in the reflected second rays is reflected by the other polarizer. The reflected first rays is detected by an optical sensor that is positioned outside an optical path of the second rays originally involved in the incident rays and reflected in the first direction.

摘要翻译： 入射光线的第一线性极化束通过具有输入视频信号的光学调制转换为与偏振中的第一射线正交的第二线偏振光束。 第一根光线在光学调制之前穿过偏振片。 最初涉及入射光线的第二线偏振光束被偏振器沿第一方向反射。 通过光学调制获得的第二光线在第二方向上被偏振器反射。 在第二方向反射的第二射线穿过另一个偏振器。 涉及反射的第二射线的第一个线偏振光束被另一个偏振器反射。 反射的第一光线被位于原来涉及入射光线并在第一方向被反射的第二光线的光路外的光学传感器检测。

公开(公告)号：US20090161073A1

公开(公告)日：2009-06-25

申请号：US12316785

申请日：2008-12-16

申请人： Tatsuru Kobayashi ,  Akio Hayama ,  Kouichi Kawamura ,  Ryo Nishima

发明人： Tatsuru Kobayashi ,  Akio Hayama ,  Kouichi Kawamura ,  Ryo Nishima

IPC分类号： G03B21/14

CPC分类号： G03B21/208 ,  G03B21/2073

摘要： A bundle of rays is incident in a lens array and converted into sub-bundles of rays. The sub-bundles of rays are separated by a color separator into first and second sub-bundles of rays of different colors. The first and the second sub-bundles of rays are combined by other lens arrays into a first and a second bundle of rays of uniform illuminance, respectively. The first and second bundle of rays of uniform illuminance are applied polarization beam splitting and then polarization angle conversion by polarization converters, to be converted into first and second linearly polarized beams, respectively. The second linearly polarized beams are separated by a color separator, provided on an optical path of the second linearly polarized beams, into third and fourth linearly polarized beams of different colors. The first, third and fourth linearly polarized beams are modulated by liquid crystal display devices, provided on optical paths of the first, third and fourth linearly polarized beams, respectively, with input video signals into first, second and third modulated beams. The first, second and third modulated beams are combined by a color combiner into a combined bundle of rays to be projected for displaying images carried by the video signals.

摘要翻译： 一束光线入射在透镜阵列中，并转换成亚光束。 光束的子束由颜色分离器分离成不同颜色的光线的第一和第二子束。 第一和第二束光束分别由其他透镜阵列组合成具有均匀照度的第一束和第二束光线。 施加均匀照度的第一束和第二束光束分别施加偏振光束分离，然后通过偏振转换器进行偏振角转换，分别转换成第一和第二线偏振光束。 第二线偏振光束被设置在第二线偏振光束的光路上的分色器分离成不同颜色的第三和第四线偏振光束。 第一，第三和第四线偏振光束由分别设置在第一，第三和第四线偏振光束的光路上的液晶显示装置分别由输入视频信号调制成第一，第二和第三调制光束。 第一，第二和第三调制光束通过颜色组合器组合成要投影的组合光束，以显示由视频信号承载的图像。