| 摘要 |
The present invention relates to a device for illumination or signaling, comprising at least two light-emitting diodes that each emit a light beam and are supplied with a pulsed current so as to be lit alternately, the pulses of the supply current of the light-emitting diodes having an instantaneous intensity higher than the maximum intensity in steady state and an average intensity lower than this maximum value, the pulses of the supply current of the light-emitting diodes having a duty ratio greater than or equal to the inverse of the number of light-emitting diodes. According to the present invention, it comprises an optical system that receives the light beams emitted by the light-emitting diodes and delivers a single emergent beam, irrespective of which light-emitting diode is providing it with an incident beam.
|
