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    • 10. 发明授权
    • Laser marking device, laser marking method, and object to be marked
    • 激光打标设备,激光打标方法和待标记的物体
    • US07705870B2
    • 2010-04-27
    • US10578249
    • 2004-11-10
    • Kazuo Sato
    • Kazuo Sato
    • B41J2/47B41J2/435H05B6/00
    • G06K1/126B23K26/064B23K26/0643B23K26/0648B23K26/0665B23K26/361B23K2101/18B23K2101/34B23K2101/36B41M5/267
    • A laser marking device that irradiates a laser beam on a workpiece (W) to transform a portion inside the workpiece at a focal point of the laser beam, thus putting a dot in each predetermined area. The laser marking device includes acquiring mechanism (10, 20) that acquires, as information on the dot, at least two-dimensional position information of an exposed section of the workpiece (W), and density information of the dot, coordinate setting mechanism (30) that calculates, for each dot according to the density information, dot depth information showing the distance from the surface of the workpiece (W) to the dot in the thickness direction of the workpiece (W), and sets three-dimensional coordinates for each dot based on a position specified by the dot depth information and the two-dimensional position information, and laser marking mechanism (40) that performs marking with the three-dimensional coordinates as a laser beam focal point.
    • 一种激光打标装置,其将激光束照射在工件(W)上,以在激光束的焦点处将工件内的部分变换,从而在每个预定区域中形成点。 所述激光打标装置包括获取作为所述点的信息的所述工件(W)的露出部的至少二维位置信息和所述点的密度信息的坐标设定机构(10,20) 30),根据密度信息,针对每个点计算表示从工件(W)的表面到工件(W)的厚度方向上的点的距离的点深度信息,并将三维坐标设置为 基于由点深度信息和二维位置信息指定的位置的每个点,以及以三维坐标进行标记的激光标记机构(40)作为激光束焦点。