| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a lense unit which need not adjust an angle of optical axis of LED pointer every time replacement with a fθlens of different focus position is executed, which has less fear of touching the fθlense, and which is easy in changing size and shape of the fθlense, and to provide as well a device for laser marking equipped with such unit. SOLUTION: A fθlens 11 is held in a lens holder 12 mounted attachably and detachably on a housing of a device for laser marking, and at the same time, on this lens holder 12, LED pointers 14, 14 are beforehand mounted through a holder plate 13 so that the position of a focus of the fθlens 11 may pass its optical axis.</p> |
