Road vehicle lighting unit uses light emitting diode output directed through optical elements with different refractive indexes

摘要

The road vehicle light has a light emitting diode, LED, [10] set into an optical element [12] of a plastic material that has a refractive index n1. The inner beam is received by a lens [26] that has a refractive index n2 that is smaller than that, i.e. n1 of the optical element.