PLASMA EMISSION DEVICE, AND ELECTROMAGNETIC WAVE GENERATOR USED THEREIN

摘要

A plasma emission device in an embodiment includes: an electromagnetic wave generator; a waveguide transmitting an electromagnetic wave emitted from the electromagnetic wave generator, an antenna receiving the electromagnetic wave transmitted through the waveguide; an electromagnetic wave focuser which is irradiated with the electromagnetic wave from the antenna; and an electrodeless bulb disposed in the electromagnetic wave focuser. A light-emitting material filled in the electrodeless bulb is excited by the electromagnetic wave focused by the electromagnetic wave focuser to perform plasma emission. The electromagnetic wave generator includes a cathode part and an anode part. A maximum output efficiency of the electromagnetic wave to be generated with an input power of 700 W or less is 70% or more.

主权项

1. A plasma emission device, comprising:
an electromagnetic wave generator; a power source unit supplying power to the electromagnetic wave generator; a waveguide transmitting an electromagnetic wave emitted from the electromagnetic wave generator; an antenna receiving the electromagnetic wave transmitted through the waveguide; an electromagnetic wave focuser which is irradiated with the electromagnetic wave from the antenna; and a light emitting unit having an electrodeless bulb disposed in the electromagnetic wave focuser and filled with a light-emitting material therein, the electrodeless bulb plasma-emitting by the electromagnetic wave being focused by the electromagnetic wave focuser to excite the light-emitting material, wherein the electromagnetic wave generator comprises a cathode part and an anode part surrounding the cathode part, and a maximum output efficiency of the electromagnetic wave to be generated with an input power of 700 W or less in the electromagnetic wave generator is 70% or more.