Patent ID: 7305015

Claim:
A laser-generating device, comprising: a laser ray source for irradiating and emitting a basic wave of laser ray therefrom; a wavelength converter device including an optical resonator and a non-linear crystal for receiving the basic wave of laser ray emitted from said laser ray source and for converting it into an ultraviolet laser ray composed of a multiplied high harmonic light of the basic wave of laser ray; and a container having an inlet window, upon which the basic wave of laser ray emitted from said laser ray source is incident upon, an outlet window for emitting the ultraviolet laser ray composed of the multiplied high harmonic light of the basic wave of laser ray, a gas inlet port for introducing a gas into the container, a filter disposed at the gas inlet port for filtering the gas introduced from the gas inlet port and supplying filtered gas into the container through the filter, a gas output port for exhausting gas from the container to outside of the container, and installing said wavelength converter device including the optical resonator and the non-linear crystal therein.