Compact LED downlight with cuspated flux-redistribution lens

A lighting device has a light source, a reflector dish with a central opening facing the light source, and a lens between the light source and the reflector dish. The lens is so arranged that light emitted from the source towards the central opening of the reflector dish is diffracted away from the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PARKYN WILLIAM A, FALICOFF WAQIDI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A lighting device has a light source, a reflector dish with a central opening facing the light source, and a lens between the light source and the reflector dish. The lens is so arranged that light emitted from the source towards the central opening of the reflector dish is diffracted away from the central opening. The reflector dish is arranged to reflect light received from the source through the lens back past the lens and source.