Laser working machine

Abstract

Abstract PURPOSE:To improve the accuracy in focusing by providing a beam splitter between a laser oscillator and a lens, reflecting the laser light reflected from a work again on said splitter and detecting the intensity thereof so that the laser light is focussed on the surface of the work with the detected value maximized. CONSTITUTION:When laser light 11 is outputted from a laser oscillator 1, a part thereof is reflected by a beam splitter 12 and enters a power meter 13, where the intensity of the laser light 11 is measured. The light 11 past the splitter 12 is reflected by a mirror 3 and is condensed, through a lens 5, onto the surface of a work 6. When the intensity of the laser light is weakened in this stage, the light 11 is reflected by the work 6 so as to pass through the lens 5, is reflected by the mirror 3 and arrives at the splitter 12, by which the light is again reflected to enter a power meter 14. The value detected with the meter 14 is maximized by adjusting an adjusting screw 9 in this stage, then the focus 10 of the light 11 is exactly formed on the surface of the work 6.

Inventors

• 👤 Masahiko Maruyama
• 👤 正彦 丸山

Bibliographic Details