公开(公告)号：US5463202A

公开(公告)日：1995-10-31

申请号：US120829

申请日：1993-09-15

申请人： Miki Kurosawa ,  Shuji Ogawa ,  Masayuki Sugahara ,  Kiyoshi Funai ,  Takashi Yumura ,  Tetsu Yamamoto

发明人： Miki Kurosawa ,  Shuji Ogawa ,  Masayuki Sugahara ,  Kiyoshi Funai ,  Takashi Yumura ,  Tetsu Yamamoto

IPC分类号： B23K26/00 ,  B23K26/03 ,  B23K26/04 ,  B23K26/38 ,  H01S3/08 ,  H01S3/10

CPC分类号： B23K26/032 ,  B23K26/04 ,  B23K26/043 ,  B23K26/0643 ,  B23K26/38 ,  B23K26/382

摘要： A method and apparatus for detecting the machining status of a laser beam machining device, having a multi-mirror resonator for generating a machining beam, which utilizes the secondary light generated by the machining operation and returned from the workpiece surface into the resonator for control of the machining operation. The oscillator and accompanying components, such as beam dividing mirrors and splitters, are operative to separate the secondary light from the laser beam within the resonator and direct the two beams separately to detectors located outside of the resonator. Alternatively, the secondary light and laser beam may be directed to the outside together where they are separated by an integrating sphere for detection.

摘要翻译： 一种用于检测激光束加工装置的加工状态的方法和装置，具有用于产生加工梁的多镜共振器，其利用由加工操作产生的二次光并从工件表面返回到谐振器中，以控制 加工操作。 振荡器和附属部件（例如光束分割镜和分离器）可操作以将谐振器内的激光束的次级光分离，并将两个光束分别引导到位于谐振器外部的检测器。 或者，二次光和激光束可以被引导到外部，在那里它们被用于检测的积分球分开。

公开(公告)号：US5339208A

公开(公告)日：1994-08-16

申请号：US772212

申请日：1991-10-07

申请人： Takashi Yumura ,  Kiyoshi Funai ,  Tetsu Yamamoto

发明人： Takashi Yumura ,  Kiyoshi Funai ,  Tetsu Yamamoto

IPC分类号： G11B5/48

CPC分类号： G11B5/4833 ,  G11B5/4826

摘要： An assembly for supporting a magnetic head to float relative to a magnetic disk, comprises a load arm extending substantially tangentially of a magnetic disk and moved substantially radially of the magnetic disk, the load arm having a proximal end, and a distal end and including a spring portion at its proximal end, a gimbal secured to the distal end of the load arm and including a pivot, the load arm including a contact point at its distal end to contact with the pivot, and a magnetic head slider secured to the gimbal so as to pitch and roll about the pivot with movement of the magnetic disk. The magnetic head slider is adapted to support a magnetic head and is urged toward the magnetic disk under the influence of the spring portion of the load arm. The load arm has a shear center at the contact point.

摘要翻译： 用于支撑磁头相对于磁盘浮动的组件包括基本上相对于磁盘切向延伸并基本上径向地移动的磁盘的负载臂，负载臂具有近端和远端，并且包括 在其近端处的弹簧部分，固定到负载臂的远端并包括枢轴的万向节，所述负载臂在其远端包括接触点以与枢轴接触，以及固定到万向节的磁头滑块 用于通过磁盘的移动来绕枢轴进行俯仰和滚动。 磁头滑动件适于支撑磁头，并且在负载臂的弹簧部分的影响下被推向磁盘。 负载臂在接触点处具有剪切中心。

公开(公告)号：US5099352A

公开(公告)日：1992-03-24

申请号：US594483

申请日：1990-10-05

申请人： Tetsu Yamamoto ,  Takaharu Ueda ,  Daisuke Ogata ,  Kiyoshi Funai ,  Takashi Yumura ,  Shigeki Mizuno

发明人： Tetsu Yamamoto ,  Takaharu Ueda ,  Daisuke Ogata ,  Kiyoshi Funai ,  Takashi Yumura ,  Shigeki Mizuno

IPC分类号： G02B26/08

CPC分类号： G02B26/0816

摘要： Provided is a reflector oscillating apparatus in which the positions of a reflector and a compensating plate are detected so as to perform positioning with a high degree of positional accuracy (closed-loop control). Further, since the reflector and the compensating plate are driven by a couple of forces, no reaction forces by drive forces are applied to a rotary shaft and a support section, and accordingly, it is possible to enhance the positioning accuracy and to realize a short transient time and a large amplitude. Further, the magnetic circuit is commonly used so that the dimensions of a motor, that is, the height thereof in particular, can be reduced, irrespective of a large drive force. Accordingly, the reflector oscillating apparatus can be greatly miniaturized. Further, by commonly using the magnetic circuit, the impedance of the coil can be reduced, thereby it is possible to drive the apparatus at a high speed with a low drive voltage.

摘要翻译： 提供了一种反射器振荡装置，其中检测反射器和补偿板的位置，以便以高位置精度（闭环控制）进行定位。 此外，由于反射器和补偿板由一对力驱动，因此驱动力没有反作用力施加到旋转轴和支撑部，因此，可以提高定位精度并实现短 瞬时时间和幅度较大。 此外，通常使用磁路，使得马达的尺寸，特别是其高度可以减小，而与大的驱动力无关。 因此，反射器振荡装置可以大大地小型化。 此外，通过通常使用磁路，可以减少线圈的阻抗，从而可以以低驱动电压高速驱动装置。

公开(公告)号：US5027340A

公开(公告)日：1991-06-25

申请号：US360224

申请日：1989-06-01

申请人： Takashi Yumura ,  Tetsu Yamamoto

发明人： Takashi Yumura ,  Tetsu Yamamoto

IPC分类号： G11B7/085 ,  G11B7/135

CPC分类号： G11B7/1362 ,  G11B7/08582

摘要： An object lens head assembly for use with an optical recording disc comprises an information conversion apparatus for receiving an electrical signal bearing information to be written to the disc and outputting beams of light bearing the information to be written to the disc, and for receiving a beam of light bearing information read from the disc and outputting an electrical signal bearing the information read from the disc; a plurality of object lenses disposed along a diametrical direction of the disc for directing light onto a plurality of portions of the disc, respectively; a plurality of reflective mirrors for reflecting the light beam output from the information conversion apparatus toward a selected one of the object lenses; a linear motor for moving the object lenses along the diametrical direction of the disc; and a light beam shifting mechanism for shifting the light beam so that the light beam impinges upon a selected one of the reflective mirrors.

摘要翻译： 与光记录盘一起使用的物镜头组件包括信息转换装置，用于接收要写入盘的电信号承载信息，并输出承载要写入盘的信息的光束，以及用于接收光束 从光盘读取的光轴承信息，并输出承载从盘读取的信息的电信号; 沿盘的直径方向设置的多个物镜分别将光引导到盘的多个部分上; 多个反射镜，用于将从信息转换装置输出的光束朝向所选择的一个物镜反射; 用于沿着盘的直径方向移动物镜的线性电动机; 以及光束移动机构，用于使光束移动，使得光束撞击所选择的一个反射镜。

公开(公告)号：US4943147A

公开(公告)日：1990-07-24

申请号：US390900

申请日：1989-08-08

申请人： Shigeki Mizuno ,  Takaharu Ueda ,  Tetsu Yamamoto ,  Takashi Yumura

发明人： Shigeki Mizuno ,  Takaharu Ueda ,  Tetsu Yamamoto ,  Takashi Yumura

IPC分类号： G02B23/02 ,  G02B7/00 ,  G02B7/182 ,  G02B23/16

CPC分类号： G02B7/1828

摘要： A chopping secondary mirror system is provided, in which magnetic circuits of a driving motor for causing a secondary mirror to chop about its rotation axis are mounted to the secondary mirror via a driving motor mounting so that the magnetic circuits function as a balancing mass to position the center of gravity of a whole chopping section on said rotation axis. The driving motor mounting is secured to the secondary mirror at the center of the secondary mirror. Leaf springs are used as vibration damping springs of a reaction force compensator.

摘要翻译： 提供一种斩波二次反射镜系统，其中用于使二次侧反射镜绕其旋转轴斩波的驱动电机的磁路通过驱动电机安装被安装到副反射镜，使得磁路用作平衡质量位置 在所述旋转轴上的整个切割部分的重心。 驱动电机安装件固定在副镜的中央处的副镜上。 板簧用作反作用力补偿器的减震弹簧。

公开(公告)号：US5079660A

公开(公告)日：1992-01-07

申请号：US374237

申请日：1989-06-29

申请人： Takashi Yumura ,  Tetsu Yamamoto ,  Takaharu Ueda ,  Mayumi Nakazawa ,  Shigeki Mizuno

发明人： Takashi Yumura ,  Tetsu Yamamoto ,  Takaharu Ueda ,  Mayumi Nakazawa ,  Shigeki Mizuno

IPC分类号： G11B5/48

CPC分类号： G11B5/4886

摘要： An in-line type magnetic head supporting apparatus of the present invention including a first fixed part secured to a magnetic head slider mounted with a magnetic head in a floatable manner, a second fixed part secured to a load beam which presses the magnetic head slider toward the magnetic disc, and a gimbal mechanism comprising a spring part connecting the first and second fixed parts and enabling the pitching and rolling movements of the magnetic head slider in the radial direction of the magnetic disc, and further includes a restricting mechanism for preventing the sideslip of a pivot formed on the first fixed part as a fulcrum for pitching and rolling movements. Furthermore, in order to increase the flexural rigidity of the spring part of the gimbal mechanism in the radial direction, its lateral length is enlarged and slits are formed in the spring part to reduce the torsional rigidity thereby to prevent the inteference of the pitching and rolling movements.

摘要翻译： 本发明的在线式磁头支撑装置包括固定在可浮动的方式安装有磁头的磁头滑块的第一固定部件，固定到负载梁上的第二固定部件，该负载梁将磁头滑块朝向 磁盘和万向架机构，其包括连接第一和第二固定部分的弹簧部分，并且使得磁头滑块在磁盘的径向上的俯仰和滚动运动，并且还包括限制机构，用于防止侧滑 形成在第一固定部分上的枢轴作为用于俯仰和滚动运动的支点。 此外，为了提高万向节机构的弹簧部的径向的弯曲刚性，其横向长度扩大，并且在弹簧部形成狭缝以降低扭转刚度，从而防止俯仰和滚动的干涉 动作。

公开(公告)号：US4910486A

公开(公告)日：1990-03-20

申请号：US359815

申请日：1989-06-01

申请人： Takashi Yumura ,  Tetsu Yamamoto ,  Manabu Ogura

发明人： Takashi Yumura ,  Tetsu Yamamoto ,  Manabu Ogura

IPC分类号： H01F7/06

CPC分类号： H01F7/066

摘要： An electromagnetic drive actuator including a magnetic circuit comprising at least one yoke having plate-shaped, L-shaped, E-shaped cross section or the like, at least one magnet mounted on the yoke and a magnetic flux extending from the magnet to the yoke, at least one coil arranged so as to cross the magnetic flux and produce a drive force in a direction crossing a plane including the magnetic path of the magnetic circuit when current is applied to the coil, and at least one magnetic shield member provided at the side portion of the coil to thereby prevent a counter drive force from being produced in a direction opposite to a desired direction of a drive force produced by the coil.

摘要翻译： 一种电磁驱动致动器，包括磁路，该磁路包括至少一个具有板形，L形，E形横截面等的轭，安装在轭上的至少一个磁体和从磁体延伸到轭的磁通量 至少一个线圈，其布置成在电流施加到线圈时与所述磁通交叉并且在与包括所述磁路的磁路的平面相交的平面的方向上产生驱动力;以及至少一个磁屏蔽构件， 从而防止在与由线圈产生的驱动力的期望方向相反的方向上产生相反的驱动力。

公开(公告)号：US4823219A

公开(公告)日：1989-04-18

申请号：US54778

申请日：1987-05-27

申请人： Takaharu Ueda ,  Takashi Yumura ,  Tetsu Yamamoto ,  Kiyosi Funai

发明人： Takaharu Ueda ,  Takashi Yumura ,  Tetsu Yamamoto ,  Kiyosi Funai

IPC分类号： G11B7/085 ,  G11B21/02 ,  G11B5/55 ,  G11B21/08

CPC分类号： G11B7/08582 ,  G11B21/02

摘要： A carriage assembly for a disc operating apparatus comprising a frame, a carriage movably supported in the frame relative to the disc, an optical lens or magnetic head mounted on the carriage for recording and reproducing information on the disc, and a radial guide arrangement permitting movement of the carriage in a radial direction relative to the disc. The assembly also comprises a radial drive arrangement including an electromagnetic coil mounted to the carriage and a permanent magnet mounted to the frame. The permanent magnet is electromagnetically coupled with the electromagnetic coil for driving the carriage in the radial direction of the disc. The electromagnetic coil includes two sections which sandwich the carriage and are shaped to come into contact with each other at both sides thereof, whereby the cross section of the electromagnetic coil is hexagonal in a plane parallel to a surface of the disc. As a result, the dimensions in the radial direction of the carriage assembly are decreased.

摘要翻译： 一种用于盘操作装置的托架组件，包括框架，相对于盘可移动地支撑在框架中的托架，安装在滑架上的用于在盘上记录和再现信息的光学透镜或磁头，以及允许运动的径向引导装置 相对于盘的径向方向。 组件还包括径向驱动装置，其包括安装到滑架的电磁线圈和安装到框架上的永磁体。 永磁体与电磁线圈电磁耦合，用于沿盘的径向驱动托架。 电磁线圈包括夹着托架的两个部分，并且成形为在其两侧彼此接触，由此电磁线圈的横截面在平行于盘表面的平面中为六边形。 结果，滑架组件的径向尺寸减小。

公开(公告)号：US5105419A

公开(公告)日：1992-04-14

申请号：US517502

申请日：1990-04-30

申请人： Manabu Ogura ,  Takashi Yumura ,  Tetsu Yamamoto

发明人： Manabu Ogura ,  Takashi Yumura ,  Tetsu Yamamoto

IPC分类号： G11B7/085

CPC分类号： G11B7/08582

摘要： A carriage assembly has a carriage provided on both sides with voice coils, a magnet assembly surrounding the voice coils and adapted for causing the carriage to move in the radial direction of a disk, and guide rails for guiding the carriage in the radial direction of the disk. The carriage is provided on a lower portion thereof with first rollers for engagement with the guide rails and at its upper portion thereof with second rollers which co-operate with a biasing members in preventing the carriage from moving upward. Either the guide rails or the first rollers are provided with grooves which prevent the first rollers from moving in the tangential directions of the guide rails. Since the movement of the first rollers in the tangential directions of the guide rail is prevented, it is possible to locate the carriage with a high degree of precision with respect to the disk.

摘要翻译： 托架组件具有两侧设置有音圈的滑架，围绕音圈的磁体组件，并且适于使滑架沿盘的径向方向移动;以及导轨，用于沿着径向的方向引导托架 磁盘。 滑架在其下部设置有用于与导轨接合的第一滚子，并且其上部具有与偏压构件配合的第二滚子，以防止滑架向上移动。 无论是导轨还是第一辊都设置有防止第一辊沿着导轨的切线方向移动的凹槽。 由于防止第一滚子在导轨的切线方向的移动，所以可以相对于盘高精度地定位托架。

公开(公告)号：US4862441A

公开(公告)日：1989-08-29

申请号：US53636

申请日：1987-05-26

申请人： Takashi Yumura ,  Tetsu Yamamoto

发明人： Takashi Yumura ,  Tetsu Yamamoto

IPC分类号： G11B7/085

CPC分类号： G11B7/08582

摘要： A carriage assembly for use with an optical recording disc for optical recording and reproduction relative to the disc comprises a frame, an optical lens for projecting and receiving a light beam for the optical recording and reproduction, a carriage movably supported in the frame for supporting the optical lens relative to the disc, a vertical guide arrangement for permitting a movement of the optical lens relative to the carriage in a vertical direction relative the disc surface, a vertical drive arrangement for driving the optical lens in the vertical direction relative to the carriage, a radial guide arrangement for permitting said carriage to move in a radial direction of said optical disc, and a radial drive arrangement for driving the carriage in the radial direction of the disc. The vertical drive arrangement includes a permanent magnet and an electromagnetic coil electromagnetically coupled with the permanent magnet, one of the permanent magnet and the electromagnetic coil being mounted to the optical lens and the other of them being mounted to the frame, whereby the carriage assembly is reduced in both weight and physical dimensions.

摘要翻译： 用于与光盘相对于光盘记录和再现的光学记录盘的托架组件包括框架，用于投射和接收用于光学记录和再现的光束的光学透镜，可移动地支撑在框架中用于支撑 相对于盘的光学透镜，用于允许光学透镜相对于托盘在垂直方向上相对于盘表面移动的垂直引导装置，用于相对于托架在垂直方向上驱动光学透镜的垂直驱动装置， 用于允许所述滑架沿所述光盘的径向方向移动的径向引导装置，以及用于沿所述盘的径向方向驱动所述托架的径向驱动装置。 垂直驱动装置包括永磁体和与永久磁铁电磁耦合的电磁线圈，永磁体和电磁线圈中的一个安装在光学透镜上，另一个被安装到框架上，由此托架组件 减轻体重和体重。