Illumination lens for short-throw lighting

Exemplary embodiments of the present invention relate to wide-angle illumination patterns for short-throw lighting. An illumination lens according to an exemplary embodiment includes a light incident surface that defines a cavity and has a flat top and lateral flanks, the light incident surface bein...

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Bibliographische Detailangaben
Hauptverfasser:	PARKYN WILLIAM A, PELKA DAVID G
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEAT PUMP SYSTEMS HEATING ICE-BOXES 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 INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS LIGHT SOURCES NOT OTHERWISE PROVIDED FOR LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS REFRIGERATION OR COOLING REFRIGERATORS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	Exemplary embodiments of the present invention relate to wide-angle illumination patterns for short-throw lighting. An illumination lens according to an exemplary embodiment includes a light incident surface that defines a cavity and has a flat top and lateral flanks, the light incident surface being configured to receive light from an underlying light emitting element. The illumination lens also includes a light exiting surface having a central indentation and a surrounding toroid, wherein the flat top faces the central indentation.