摘要 |
A method for controlling an angular distribution of a light-beam emitted by a light-output device (102, 200) comprising a first set of light-sources (105, 211) comprising at least one light-source configured to emit light within a first angular range (221, 231, 241) and second set of light-sources (107, 210) comprising at least one light-source configured to emit light within a second angular range (222, 232, 242), wherein the first angular range is different from the second angular range. The method comprises the steps of: receiving (401) a dimmer setting (VDS) from a dimmer (101); controlling (404), if the dimmer setting is within a first predetermined range, the first set of light-sources to emit light within the first angular range; and controlling (405), if the dimmer setting is within a second predetermined range, the second set of light-sources to emit light within the second angular range. Through the method according to the invention the angular distribution of light emitted from a single light-output device may be controlled using a single switch, thereby avoiding the need for having a plurality of switches and/or new wiring which would otherwise be required. |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
VISSENBERG, MICHEL, CORNELIS, JOSEPHUS, MARIE;ANSEMS, JOHANNES, PETRUS, MARIA;VAN GORKOM, RAMON, PASCAL;BERGMAN, ANTHONIE, HENDRIK;KRIJN, MARCELLINUS, PETRUS, CAROLUS, MICHAEL;TUKKER, TEUNIS, WILLEM |