LIGHTING DEVICE WITH A POLISHED LIGHT-EMITTING ELEMENT

摘要

Electrical lighting device (14) with at least one light source (4) and with a light-emitting element (1) which is transparent at least to light in the visible spectrum and has a longitudinal direction, said light-emitting element having a light entry surface (3) which is arranged at one end of the light-emitting element (1), wherein light emitted by the light source (4) enters the light-emitting element (1) via the light entry surface (3), and wherein at least that quarter of the light-emitting element (1) which is furthest removed from the light source (4) with respect to the longitudinal direction has an outer wall provided with a large number of facets (2), wherein at least the angles of the facets of that third of the light-emitting element (1) which is furthest removed from the light source (4) with respect to the longitudinal direction relative to a surface perpendicular to the longitudinal direction are between approximately 50° and approximately 65°.