METHOD AND DEVICE FOR COLOR LASER MARKING

摘要

Method and device for color laser marking for attaining coloring that provides a positive visibility without greatly modifying a conventional device and without using a dye. To this end, in a color laser marking method, a work (10) is a synthetic material from organic and inorganic materials, and when applying a laser beam, patterns in different colors can be obtained by changing the light receiving intensity at the work (10). In addition, in a color laser marking device, when a work (10) is a synthetic material from organic and inorganic materials, a controller (11) outputs a laser irradiation intensity changing signal to at least one of laser irradiation intensity changing means such as a laser oscillator (1).