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    • 2. 发明授权
    • Method and apparatus for providing ablation-free laser marking on hard disk media
    • 在硬盘介质上提供无消融激光打标的方法和装置
    • US06518540B1
    • 2003-02-11
    • US09332756
    • 1999-06-14
    • Teng Soon WeeLian Boon KohDaming LiuYuan YuanYong Feng LuJui Kiat GohKuan Teck Chang
    • Teng Soon WeeLian Boon KohDaming LiuYuan YuanYong Feng LuJui Kiat GohKuan Teck Chang
    • B23K2618
    • B23K26/361
    • A method and apparatus for creating ablation-free visible markings on a multi-layer hard disk magnetic storage media by laser-induced deformation while maintaining the integrity of the protective carbon layer, and without destroying the multi-layered structure of the media. The apparatus includes a laser generator, a rotatable optical plate and a beamsplitter by which the fluence of the beam can be controlled without altering the power setting to the laser generator, a beam sampler for determining the fluence of the beam, and an optical plate which acts with the beamsplitter to eliminate unwanted reflection of the laser beam. The laser beam is steered by a beamsteerer to a hard disk held in a material handling unit. This technique is highly suitable for marking or labeling finished hard disks for the purposes of identification and traceability, without creating any short-term or long-term contamination problems. The corresponding storage media so marked are also claimed.
    • 一种用于通过激光诱导变形在多层硬盘磁性存储介质上产生无消融可见标记的方法和装置,同时保持保护性碳层的完整性,并且不破坏介质的多层结构。 该装置包括激光发生器,可旋转光学板和分束器,通过该分束器可以控制光束的注量而不改变对激光发生器的功率设置,用于确定光束的光束的光束采样器和光学板, 与分束器一起作用以消除激光束的不必要的反射。 激光束被束流器转向保持在材料处理单元中的硬盘。 该技术非常适合于为了识别和追溯而进行标记或标记成品硬盘,而不会产生任何短期或长期的污染问题。 还声明了如此标记的相应存储介质。