MICROWAVE FOCUSING APPARATUS FOR ELECTRODELESS LIGHTING SYSTEM, INCLUDING FOCUSING PINS FOR FOCUSING MICROWAVE TO ELECTRODELESS BULB

摘要

PURPOSE: A microwave focusing apparatus is provided to achieve improved efficiency of light emission by permitting the microwave introduced in a resonator to be focused in an electrodeless bulb. CONSTITUTION: An electrodeless lighting system comprises a resonator(150) and an electrodeless bulb(60). The resonator is coupled to a protrusion of a waveguide(40) so as to prevent a leakage of microwave. The electrodeless bulb is mounted in the resonator, and emits light by a microwave. At least one focusing pin is arranged in the resonator so as to focus a microwave to the electrodeless bulb. The focusing pin is protruded toward the electrodeless bulb in the resonator.