| 摘要 |
PURPOSE:To adjust easily, exactly and visibly the position of a V-groove for piercing a hole to an eyeless needle by paralleling the continuously oscillated visible laser light coaxial with the optical axis of a pulse laser for working with the V-groove and irradiating the end face of the needle material imposed in the V-groove. CONSTITUTION:Laser light 14 for working of a pulse laser oscillator 13 for working constituted of a semi-reflection mirror 10, an oscillating rod 11 and a total reflection mirror 12 and the visible laser luminous flux 20 emitted from a visible laser oscillator 19 and a slit 21 are coaxial and irradiate the end face of a needle material 18 imposed in a V-groove 17 via a dichroic mirror 15 and a condenser lens 16. The end face of the material 18 is positioned and the parallel of the V-groove is adjusted by the light irradiating the end face of the material 18 or the laser flux removed a slit 21 and a restricting lens 16. The slit is then removed, the position of a focus 8 is determined and the end face is positioned by shifting the end face by a prescribed distance S. Since the position of the V-groove is adjusted by the coaxial visible light, the operation is made extremely simple and accurate. |
