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    • 5. 发明授权
    • Method and apparatus for laser-texturing disk surfaces
    • 用于激光纹理化磁盘表面的方法和装置
    • US06004487A
    • 1999-12-21
    • US111376
    • 1998-07-07
    • Kenya WadaHisayoshi IchikawaKazuto KinoshitaShinji Sugizaki
    • Kenya WadaHisayoshi IchikawaKazuto KinoshitaShinji Sugizaki
    • B23K26/06B23K26/073B29D11/00G11B5/84
    • G11B5/8404B23K26/0084B23K26/0648B23K26/0652B23K26/0734
    • Method and apparatus for a disk texturing operation in which laser pulses are successively bombarded against a delimited surface area on the face of a rotating disk, from an optical laser pulse irradiating means which is put in movement in a radial direction relative to the disk to provide a textured zone of a predetermined width on the disk. A pulsed laser beam from a laser light source is adjusted to an optimum power level for an aimed bump diameter. The laser beam is then transformed into an annular beam of a collimated light flux having specified inner and outer diameters, and the resulting laser pulses are successively bombarded on the texturing zone through an objective optical system condensing said laser pulses into a specified spot diameter thereby to form minute bumps of predetermined shape and diameter uniformly on the surface of the disk.
    • 一种用于盘纹理操作的方法和装置,其中激光脉冲从光学激光脉冲照射装置相对于旋转盘的表面上的划定的表面区域被连续地轰击,光学激光脉冲照射装置相对于盘沿径向移动,以提供 在盘上具有预定宽度的纹理区域。 来自激光光源的脉冲激光束被调节到用于目标凸起直径的最佳功率水平。 然后将激光束变换成具有规定的内径和外径的准直光束的环形光束,并且通过将所述激光脉冲冷凝成指定光斑直径的物镜光学系统将所得到的激光脉冲连续地轰击在纹理区上,从而 在盘的表面上均匀地形成预定形状和直径的微小凸起。