METHOD AND APPARATUS TO REDUCE THERMAL STRESS BY REGULATION AND CONTROL OF LAMP OPERATING TEMPERATURES

METHOD AND APPARATUS TO REDUCE THERMAL STRESS BY REGULATION AND CONTROL OF LAMP OPERATING TEMPERATURES

A fluid input manifold distributes injected fluid around the body of a bulb to cool the bulb below a threshold. The injected fluid also distributes heat more evenly along the surface of the bulb to reduce thermal stress. The fluid input manifold may comprise one or more airfoils to direct a substant...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PATIL, Rajeev, BEZEL, Ilya, LASFARGUES, Cedric, WANG, Jincheng, BRUNNER, Rudolf, SCOTT, Daniel, GROSS, Kenneth, P, WILSON, Lauren, CHIMMALGI, Anant, GIANG, Quang, VORA, Younus, KIM, Erik, DERSTINE, Matthew
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BLASTING
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
HEATING
LIGHTING
MECHANICAL ENGINEERING
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
WEAPONS
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Beschreibung
Zusammenfassung:A fluid input manifold distributes injected fluid around the body of a bulb to cool the bulb below a threshold. The injected fluid also distributes heat more evenly along the surface of the bulb to reduce thermal stress. The fluid input manifold may comprise one or more airfoils to direct a substantially laminar fluid flow along the surface of the bulb or it may comprise a plurality of fluid injection nozzles oriented to produce a substantially laminar fluid flow. An output portion may be configured to facilitate fluid flow along the surface of the bulb by allowing injected fluid to easily escape after absorbing heat from the bulb or by applying negative pressure to actively draw injected fluid along the surface of the bulb and away.