LED LIGHT PROJECTOR WITH FRESNEL OR PLANAR - CONVEX LENS, IN PARTICULAR FOR CINEMA ILLUMINATION

An optical system for LED light projectors utilizing a Fresnel or planar-convex lens that permits a considerable energy saving and an elevated quality of the illumination either in FLOOD or SPOT mode is described. The optical system has a mirror having a particular three-dimensional surface construc...

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Bibliographische Detailangaben
Hauptverfasser:	DE SISTI, MARIO, DE SISTI, FABIO, DE SISTI, SERGIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING NON-PORTABLE LIGHTING DEVICES 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:	An optical system for LED light projectors utilizing a Fresnel or planar-convex lens that permits a considerable energy saving and an elevated quality of the illumination either in FLOOD or SPOT mode is described. The optical system has a mirror having a particular three-dimensional surface constructed by rotating a parabola and taking sectors so as to obtain a surface that is more closed than a pure parabola. A reflecting optical system for projectors utilizing a Fresnel or planar-convex lens is also described.