Study on temperature distribution around bulb envelope and cavity of high power PLS

Summary form only given, as follows. Summary form only given. A plasma light system is an electrodeless lamp discharged by microwaves. High efficacy and CRI visible light similar to daylight is radiated. It is mainly composed of a microwave part and optical part. The microwave part consists of a magnetron, waveguide and cylindrical cavity, and the optical parts consist of bulb, mirror and reflector. High power microwaves generated by a magnetron are focused on a bulb located within the cavity. Several torrs of buffer gas within the bulb are ionized by microwaves and then ionized gas excites solid-state chemical fills to become high a pressure and temperature plasma. A bulb envelope made of quartz should be rotated to bear up against high temperature and maintain uniformity within the bulb. We studied the temperature distribution around a rotating quartz envelope and cavity.