A lighting apparatus, particularly for the use as lighting elements in
signage or as backlighting apparatus, which comprises a cavity formed by
a light emitting front side, a reflective backside arranged opposite to
the front side and a sidewall, and a plurality of light emitting
semiconductor components mounted on the sidewall in such a way that their
light is irradiated in the cavity. The reflective backside of the cavity
is formed in such a way that the cavity is divided into at least two
partitions directing the light to the front side.