LED LUMINAIRE

A luminaire having an array of light emitting diodes on a circuit board, and a generally planar lens element adjacent each of the LEDs, wherein each lens element has a plurality of concentric ridges projecting from a surface of the lens member to define Fresnel facets for redirecting light emitted f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WELLS, BRIAN, MALLORY, DEREK, STADTHERR, DIANNA
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	A luminaire having an array of light emitting diodes on a circuit board, and a generally planar lens element adjacent each of the LEDs, wherein each lens element has a plurality of concentric ridges projecting from a surface of the lens member to define Fresnel facets for redirecting light emitted from the corresponding LED, providing more uniform light distribution in a compact configuration. Un luminaire comprend un réseau de diodes électroluminescentes sur une carte de circuits imprimés, et une lentille généralement plane adjacente à chacune des DEL, chaque lentille présentant une pluralité de crêtes concentriques faisant saillie d'une surface de la lentille pour former des facettes de Fresnel afin de rediriger la lumière émise par la DEL correspondante, ce qui engendre une distribution de lumière plus uniforme dans une configuration compacte.