초록 ▼

An electrodeless light bulb assembly having a standard light bulb base located at one end of an extruded cylindrical heat sink including a set of elongated fins extending radially outward from an annular inner body portion. An electrodeless light bulb, excitation coil, and transparent cover for the

An electrodeless light bulb assembly having a standard light bulb base located at one end of an extruded cylindrical heat sink including a set of elongated fins extending radially outward from an annular inner body portion. An electrodeless light bulb, excitation coil, and transparent cover for the bulb are located at the other end of the heat sink. A solid state electrodeless lamp driver circuit is thermally coupled to the heat sink and is located in a hollow inner space region formed by the inner body portion. The annular inner body portion also includes at least one but preferably a plurality of boiler/condenser heat pipes located around its periphery for thermally coupling the heat from excitation coil and the driver to the fins where heat is transferred to the air via natural convection. The excitation coil can be formed from a length of conventional electrical conductor or it can be formed from a length of heat pipe connected at one end to the driver and at the other end to the heat sink.

대표청구항 ▼

[ We claim:] [1.] An electrodeless light bulb assembly, comprising:a heat sink including an inner body portion defining a hollow inner space region and a plurality of heat dissipating fins extending outwardly from said inner body portion;a threaded type lamp base located at one end of the heat sink

[ We claim:] [1.] An electrodeless light bulb assembly, comprising:a heat sink including an inner body portion defining a hollow inner space region and a plurality of heat dissipating fins extending outwardly from said inner body portion;a threaded type lamp base located at one end of the heat sink for connection to an external source of electrical power;an electrodeless light bulb and excitation coil therefor located at the other end of the heat sink;a transparent cover for protecting the light bulb and the excitation coil secured to said other end of the heat sink;a driver circuit connected to the excitation coil for exciting the light bulb and being thermally coupled to the heat sink and being mounted thereon in said hollow inner space region of said inner body portion; andwherein said heat sink additionally includes at least one boiler/condenser element located interiorly of said inner body portion adjacent said hollow inner space region for transferring heat from said excitation coil and said driver circuit to said fins.