LED LIGHTING DEVICE FOR AN OPERATING FIELD COMPRISING A LIGHT BEAM DIVIDER

An LED lighting device (5) comprises first and second LEDs (6 8) arranged to respectively emit first and second beams (7 9) of white light having first and second different respective colour temperatures and a beam splitter (10) arranged to split the first and second light beams (7 9) respectively i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VALTEAU CÉCILIA, VU THUI MINH HONG
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING 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 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 MECHANICAL ENGINEERING NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE WEAPONS
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Beschreibung
Zusammenfassung:	An LED lighting device (5) comprises first and second LEDs (6 8) arranged to respectively emit first and second beams (7 9) of white light having first and second different respective colour temperatures and a beam splitter (10) arranged to split the first and second light beams (7 9) respectively into a first reflected portion of the first and second beams (11 3) and a second transmitted portion of the first and second beams (12 14). The LED s (6 8) and the beam splitter (10) are arranged spatially such that the transmitted portion of the first beam (12) and the reflected portion of the second beam (13) overlap into a first resulting beam (15) of intermediate colour temperature between the first and second colour temperatures and the reflected portion of the first beam (11) and the transmitted portion of the second beam (14) overlap into a second resulting beam (16) of the same intermediate colour temperature.