Optimal silicon dioxide protection layer thickness for silver lamp reflector

A reflector lamp has a generally parabolic shaped housing (12) with an interior surface coated with a layer (16) of silver having a protective layer (18) of a stable protective material, such as silica, disposed thereon. The thickness of the protective layer is selected such that at least one of the...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO, TIANJI, ISRAEL, RAJASINGH, CHOWDHURY, ASHFAQUI ISLAM
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 reflector lamp has a generally parabolic shaped housing (12) with an interior surface coated with a layer (16) of silver having a protective layer (18) of a stable protective material, such as silica, disposed thereon. The thickness of the protective layer is selected such that at least one of the following relationships is satisfied: a color correction temperature of the lamp is no less than about 60K below that of the light source, and a % reflectance of the reflective interior surface is no less than about 3% below that of an equivalent reflective interior surface without the protective layer.