Method and apparatus for cooling electrodeless lamps
AssigneeFusion Systems Corporation
InventorsDelroy O. Walker, Demetri P. Telionis
Life of this patent
Estimating the term…
Abstract
Apparatus for cooling the lamp envelope of an electrodeless lamp which includes a conduit for carrying cooling gas into the vicinity of the lamp envelope and directing the cooling gas towards the lamp envelope through a slotted orifice in a wall of the conduit. The slotted orifice is preferably oriented with its long dimension substantially perpendicular to the conduct orifice and substantially parallel to the axis of a rotating lamp envelope.
Claims18
Apparatus for cooling an electrodeless lamp having a lamp envelope which becomes extremely hot during operation, said lamp containing a plasma-forming medium and being mounted within a chamber for containing radiation for energizing said plasma-forming medium, said apparatus comprising:
- means for providing a source of cooling gas under pressure;
- conduit means for carrying said cooling gas from said source of cooling gas into said chamber and in the vicinity of said lamp envelope;
- and,
- cooling gas outlet port means in a wall of said conduit means, said outlet port means comprising a slotted orifice in said wall, said orifice being oriented for directing a stream of cooling gas toward said lamp envelope.
A method of cooling a lamp envelope of an electrodeless lamp, said lamp envelope containing a plasma-forming medium and being mounted within a chamber which is supplied with radiation for energizing said plasma-forming medium, said method comprising:
- rotating said envelope about an axis;
- providing a source of pressurized cooling gas;
- providing conduit means for transporting said cooling gas into said chamber;
- passing said cooling gas from said conduit into said chamber through a slotted orifice, said slotted orifice being oriented to direct the resulting stream of cooling gas at said lamp envelope.
Dependencies are inferred from the claim text.