A vehicle headlamp is configured to have a plurality of lamp units employing light-emitting diodes as light sources. One lamp unit takes as a light source a light-emitting diode into which a single light-emitting chip is packaged. Other lamp units may take as light sources light-emitting diodes into...http://www.google.co.uk/patents/US6951416?utm_source=gb-gplus-sharePatent US6951416 - Vehicle headlamp
