Cooling apparatus of discharge lamp

Abstract

Disclosed is a cooling apparatus of a discharge lamp for applying a heat spreading plate to a high intensity discharge lamp or for applying both a heat spreading plate and a cooling fan to a high intensity discharge lamp so as to improve a durability of an embedded electronic ballast and to increase an optical output efficiency of a discharge lamp. The cooling apparatus of a discharge lamp, the discharge lamp is composed of a base holding cover having a base on which an external power source is applied; a lamp holding cover for holding and supporting a plurality of lamps and, an electronic ballast which converts the external power source into a power source for turning on the lamps the cooling apparatus comprising: a heat spreading plate for radiating a heat in the discharge lamp; and a heat emitting cover interposed between the base holding cover and the lamp holding cover in which a plurality of heat radiating openings are formed so as to emit the radiated heat by the heat spreading plate into the outside, wherein the heat spreading plate comprises a plurality of cooling pins, and the heat spreading plate is attached into a plurality of transistors embedded into the electronic ballast.

Dependencies are inferred from the claim text.