| 摘要 |
PURPOSE:To obtain a titled equipment for preventing a damage of parts of a laser oscillator, and extending a life of the equipment by constituting the device so that a reflected beam by the surface of an object to be worked does not coincide with an irradiated beam line, in case of a surface treatment of the object to be worked by a laser beam passing through a reflecting mirror. CONSTITUTION:A laser beam emitted from a laser oscillator 1 executes a surface treatment of an object 14 to be worked through reflecting mirrors 2a-c and a condensing lens 3. The object 14 to be worked is inclined against an irradiated beam A, and a reflected beam B is deviated from the irradiated beam line A, by which a damage of parts of the laser oscillator 1 by the reflected beam B is prevented, and a life of the device is extended. |
