STRUCTURE OF SAFETY VISIBLE WINDOW FOR YAG LASER BEAM MACHINING

摘要

PROBLEM TO BE SOLVED: To provide a means for eliminating possibility of impairing safety in the case where, for example, a laser beam is continuously emitted when goggles are damaged by the laser beam reflected on the surface of a workpiece, although a means for detecting the wear is installed in the conventional goggles, helmets, etc., worn at the time of machining with a YAG laser handy welding torch for example and is interlocked with the function of emitting a laser beam. SOLUTION: As a sensor for detecting damage to the visible window part of a safety helmet and the like, a fine continuous wire is printed on the window member by a screen printing method so that the visibility is unimpaired, thereby providing a structure that stops YAG laser irradiation when disconnection of the wire is detected.