| 摘要 |
An auxiliary focusing tool for a laser marker for adjusting a distance between a laser focal lens and a work piece before laser marking, the tool comprises: a holding member provided on the laser marker, and a collapsible measuring kit provided on the laser marker at an outputting position of a light source, the measuring kit and the holding member get a predetermined length and are perpendicular to a working surface on the work piece after they are stretched out; and the measuring kit is collapsible to be received in the holding member when it is stored. |
