Lighting device with variable light distribution

A lighting device comprises at least two groups of light-emitting diodes and an electronic circuit for controlling said light-emitting diodes. The electronic circuit is configured to control each group of light-emitting diodes separately. The beam characteristic of at least one of the groups of ligh...

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Bibliographische Detailangaben
1. Verfasser:	Schmidt, Hans-Joachim
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF 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 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 STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A lighting device comprises at least two groups of light-emitting diodes and an electronic circuit for controlling said light-emitting diodes. The electronic circuit is configured to control each group of light-emitting diodes separately. The beam characteristic of at least one of the groups of light-emitting diodes differs from the beam characteristic of at least one of the other groups of light-emitting diodes. As a result, the light distribution of the lighting device can be switched electronically.