| 摘要 |
PURPOSE:To decrease the reflected light of laser light and to execute efficient processing by providing an element for modulating the wavelength of the laser light to the wavelength of a low reflectivity in conformity with a processing material onto the optical path between the output mirror in an oscillator and torch. CONSTITUTION:The laser wavelength modulating element 6 is installed between the output mirror 1 in the oscillator and the torch 5 to convert the wavelength of the laser light to the wavelength of the low reflectivity. The efficiency of processing is thereby improved and the range of materials which permit laser beam processing is expanded. The unstableness of the laser oscillation induced in the return laser light is decreased. The safety of the operator for laser beam processing is improved by the decrease of the reflected light. |
