LED-based planar light-source

The device works on the color mixing principle, so that the radiation of flat ultraviolet-emitting diodes (5) is converted into longer wavelength light by at least one ultraviolet absorbing fluorescent material (7) and mixed with a blue component. The radiation from the ultraviolet diodes is absorbe...

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Bibliographische Detailangaben
Hauptverfasser:	ELLENS, ANDRIES, ZWASCHKA, FRANZ, SCHLIEP, KARL-PETER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FREQUENCY-CHANGING 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-LINEAR OPTICS NON-PORTABLE LIGHTING DEVICES OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS SEMICONDUCTOR DEVICES SYSTEMS THEREOF TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	The device works on the color mixing principle, so that the radiation of flat ultraviolet-emitting diodes (5) is converted into longer wavelength light by at least one ultraviolet absorbing fluorescent material (7) and mixed with a blue component. The radiation from the ultraviolet diodes is absorbed by the fluorescent material(s), while the blue component is provided by at least one blue emitting LED (8).