parabolic reflectors and manufacturing methode thereof and a condenser thereby

摘要

PURPOSE: A parabolic reflector, a manufacturing method thereof, and a condenser using the same are provided to reduce the amount of light attenuated while passing through the glass panel. CONSTITUTION: A parabolic reflector comprises a reinforcement plate(1) and a mirror(2) with a parabolic surface. The reinforcement plate has a mirror installation groove(11) inside in which the mirror is installed. The mirror installation groove includes a plurality of supporting projections(11a) and ventilation holes(11b).