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    • 5. 发明授权
    • Interference device, position detecting device, positioning device and information recording apparatus using the same
    • 干涉装置,位置检测装置,定位装置及使用该装置的信息记录装置
    • US06631047B2
    • 2003-10-07
    • US09156491
    • 1998-09-18
    • Kou IshizukaHidejiro KadowakiNaoki KawamataHiroyuki HagiwaraMakoto TakamiyaShigeki KatoHiroyuki Shiomi
    • Kou IshizukaHidejiro KadowakiNaoki KawamataHiroyuki HagiwaraMakoto TakamiyaShigeki KatoHiroyuki Shiomi
    • G11B5596
    • G11B5/59677
    • An apparatus having a first system for forming a composite light beam of two light beams to be made to interfere with each other, a splitting member for amplitude-splitting the composite light beam into three or more split light beams in the same area, and a second system for obtaining interference light beams of different phases from the plurality of split light beams. Also, an apparatus for effecting information recording on a hard disc drive device comprising an (i) optical system for splitting a light beam into two light beams, causing one of the two light beams to be condensed and reflected by the side of an arm for a recording reading head in the hard disc drive device, and superposing the condensed and reflected light beam on the other light beam to thereby obtain a composite light beam, (ii) a splitting member for amplitude-splitting the composite light beam into three or more split light beams in the same area, (iii) an optical member for obtaining interference light beams of different phases from the plurality of split light beams, (iv) light receiving elements for detecting respective ones of the interference light beams of different phases, (v) a control system for effecting the positioning of the arm on the basis of the result of the detection by each of the light receiving elements, and (vi) a signal writing-in system for writing a signal into a hard disc through the recording reading head each time the arm is positioned.
    • 一种具有第一系统的装置,用于形成要彼此干涉的两个光束的复合光束,用于将复合光束分解成同一区域中的三个或更多个分束光束的分束构件,以及 用于从多个分裂光束获得不同相位的干涉光束的第二系统。 另外,一种用于在硬盘驱动装置上进行信息记录的装置,包括:(i)用于将光束分成两束光束的光学系统,使得两个光束中的一个被臂的侧面冷凝和反射, 在所述硬盘驱动装置中的记录读取头,并且将所述聚光反射光束重叠在所述另一光束上,从而获得复合光束;(ii)用于将所述复合光束分解为三个以上的分割部件 在相同的区域中分割光束,(iii)用于从多个分裂光束获得不同相位的干涉光束的光学部件,(iv)用于检测不同相位的干涉光束的各个的光接收元件( v)用于根据每个光接收元件的检测结果来实现臂的定位的控制系统,以及(vi)用于写入信号的信号写入系统 每当手臂定位时,通过记录读取头进入硬盘。
    • 10. 发明授权
    • Actuator
    • 执行器
    • US6084326A
    • 2000-07-04
    • US241285
    • 1999-02-01
    • Shigekazu NagaiHiroyuki Shiomi
    • Shigekazu NagaiHiroyuki Shiomi
    • F16H25/24H02K7/06H02K49/10F16H1/18H02K5/10H02K49/00H02K41/04
    • H02K49/102F16H25/2418H02K49/10H02K49/106H02K49/108H02K7/06F16H25/2204Y10T464/30Y10T74/19702Y10T74/19781
    • A ball screw of an actuator is inserted through a displacement member. Driving-side axial magnetic patterns and driving-side circumferential magnetic patterns are formed on an outer circumference of the displacement member. The ball screw and the displacement member are surrounded by a tube. A slider is provided at the outside of the tube. Driven-side axial magnetic patterns opposing to the driving-side axial magnetic patterns and driven-side circumferential magnetic patterns opposing to the driving-side circumferential magnetic patterns are formed on the slider. Mutual magnetic attraction between the driving-side patterns and the driven-side patterns prevents the displacement member from rotation, and it causes the slider to make displacement in the axial direction together with the displacement member. Since the ball screw of the actuator is surrounded by the tube, the actuator can be prevented from scattering of lubricating oil, dust or the like.
    • 致动器的滚珠丝杠穿过位移元件插入。 驱动侧轴向磁图案和驱动侧周向磁图案形成在位移构件的外周上。 滚珠丝杠和位移元件被管子包围。 在管的外侧设置滑块。 在滑块上形成有与驱动侧轴向磁性图案相对的驱动侧轴向磁性图案和与驱动侧圆周磁性图案相对的从动侧圆周磁性图案。 驱动侧图案和从动侧图案之间的相互磁吸引力防止位移构件旋转,并且使滑块与位移构件一起在轴向方向上发生位移。 由于致动器的滚珠丝杠被管包围,因此可以防止致动器散失润滑油,灰尘等。