| 摘要 |
<p>A LED lighting system ( 100 ) employing a LED light source ( 115 ), a user interface ( 124, 128, 134, 138 ), and a controller ( 112 ). The LED light source ( 115 ) includes a plurality of colored LEDs emitting one of a plurality of spectral outputs as a function of one or more currents flowing through the colored LEDs, where each current has a variable time average flow. The user interface ( 124, 128, 134, 138 ) facilitate a user selection of one of the spectral outputs. The controller ( 112 ) controls the variable time average flow of each current flowing through the colored LEDs as a function of the spectral output selected by the user.</p> |
