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    • 2. 发明授权
    • Dual coil, translational bias-field device for a magneto-optical system
    • 用于磁光系统的双线圈,平移偏置场设备
    • US5710747A
    • 1998-01-20
    • US766195
    • 1996-12-12
    • Edward P. FurlaniBijan BarzidehSvetlana ReznikChristopher C. Williams
    • Edward P. FurlaniBijan BarzidehSvetlana ReznikChristopher C. Williams
    • G11B11/105G11B11/00
    • G11B11/1056G11B11/10534
    • A translational, bias-field device for a magneto-optical system having a magneto-optical recording element moving through a first magnetic field created by the bias-field device so that information is selectively recorded on or erased from the recording element, the device comprises a housing and a first rail for enabling translational movement attached to said housing. A permanent magnet structure is polarized through its cross-section having a first set of north and south poles on a first surface positioned adjacent the magneto-optic recording element for providing the first magnetic field to the recording element, and a second set of north and south poles on a second surface, and the permanent magnet structure attached to the first rail which enables translational movement of the magnet structure. A first coil is positioned adjacent to the magnet which, when energized, imparts a second magnetic field to the permanent magnet structure for imparting motion to the permanent magnet structure, and a second coil is positioned adjacent to the magnet which, when energized, imparts a third magnetic field to the permanent magnet structure for also imparting motion to the permanent magnet structure.
    • 一种用于磁 - 光系统的平移偏置场设备,其具有通过由偏置场设备产生的第一磁场移动的磁光记录元件,使得信息被选择性地记录在记录元件上或从记录元件擦除,该设备包括 壳体和第一轨道,用于实现附接到所述壳体的平移运动。 永磁体结构通过其横截面进行极化,该横截面具有位于邻近磁光记录元件的第一表面上的第一组北极和南极,用于向记录元件提供第一磁场,以及第二组北极和 在第二表面上的南极,以及附接到第一轨道的永磁体结构,其实现磁体结构的平移运动。 第一线圈定位成与磁体相邻,当被激励时,其向永磁体结构施加第二磁场,以向永磁体结构施加运动,并且第二线圈定位成与磁体相邻,当被激励时, 永磁体结构的第三磁场也用于赋予永磁体结构运动。