| 摘要 |
PURPOSE:To obtain a stable low power output by providing a shielding means which can be opened and closed freely, between an optical means and an optical fiber. CONSTITUTION:At the time of a high power output, a shielding plate 7 is opened manually or automatically, CO2 laser light which is made to transmit through is all projected to an optical fiber 16, and at the time of a low power output, for instance, 5W is outputted and the shielding plate 7 is throttled manually or automatically, and the transmitting CO2 laser light is cut off partially and controlled. That is, by cutting off the CO2 laser light by the shielding plate 7, it becomes a power output which has been decreased from an output of a laser projecting device, and accordingly, minute power setting of a low power, for instance, 0.1W-2W can be executed. Also, when a motion of the shielding plate 7 is executed automatically by a motor, it is interlocked with an output setting volume of a body side, and at the time of an output of >=5W, the shielding plate is not damaged due to a high power by constituting the shielding plate 7 so that it does not operate. |
