| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser marking method capable of performing marking by transferring a marking formed by laser beam irradiation on a wall surface or the like without relying on manual labor, and a drug spraying apparatus to be used for this method. SOLUTION: Laser marking is performed by applying a drug made from photosensitive material to a wall surface 1 or the like on which a marking is to be formed, and radiating a laser beam 4 to this drug applied surface 2. In this case, the drug is applied to the wall surface or the like by spraying. Moreover at this time, the drug spraying apparatus is used which is composed of a drug sprayer, an actuator for operating the sprayer, a holding appliance for holding the sprayer and the actuator, and a telescopic rod having the holding appliance at its tip. COPYRIGHT: (C)2006,JPO&NCIPI
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