Illumination device for use in control knob of fascia of ventilation and air-conditioning system of motor vehicle to produce cornice lighting, has optical part designed to be back lighted by light guide so as to form cornice lighting

The device (28) has light sources (30, 32) i.e. LEDs, arranged on a support. A light guide (34) is designed to distribute luminous rays emitted by the light sources following a retro-lighting beam (F1). A partially translucent external optical part (36) is designed to be back lighted by the light gu...

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Bibliographische Detailangaben
Hauptverfasser:	HAACK ALBRECHT, UHL ALEXANDRE, FENDELEUR LAURENCE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The device (28) has light sources (30, 32) i.e. LEDs, arranged on a support. A light guide (34) is designed to distribute luminous rays emitted by the light sources following a retro-lighting beam (F1). A partially translucent external optical part (36) is designed to be back lighted by the light guide so as to form cornice lighting. A diffusing film (38) is interposed between the light guide and the external optical part to control intensity and homogeneity of the retro-lighting beam. Dispositif d'illumination prévu pour être agencé dans un panneau de commande, notamment dans un tableau de bord de véhicule, en vue de produire un bandeau lumineux entourant au moins partiellement un élément du panneau de commande, caractérisé en ce qu'il comporte : - au moins une source lumineuse agencée sur un support, - un guide de lumière prévu pour répartir les rayons lumineux émis par la source suivant un faisceau de rétro-éclairage, - une pièce optique externe au moins partiellement translucide prévue pour être rétro-éclairée par le guide de lumière de manière à former le bandeau lumineux.