A luminaire for installing in the cover cap of an exterior rearview mirror for
motor vehicles, has a luminaire housing and an electrical lamp arranged therein.
The housing is entirely or partly of transparent design, such that in the installed
state light exit surfaces of the housing are arranged both on the front side and
on the rear side of the exterior rearview mirror. The lamp has a tubular, sealed
lamp vessel, at least a portion of the lateral surface of the lamp vessel and an
end face of the lamp vessel being of transparent design. Light directing elements
for focusing the light emerging from the lateral surface and for deflecting the
light emerging from the end face are provided such that the light emerging from
the end face is directed toward a light exit surface arranged opposing the light
emerging from the lateral surface.