Linear luminaire with improved optical cover for asymmetrical diffusion of light rays

摘要

A lighting cover (1) for the asymmetrical diffusion of the light rays emitted by a light source, comprising an outside (12) and an inside (13) facing the light source, the inside (13) at least in its edge regions parallel to the longitudinal axis of the cross section of the cover ( 1) and at least one elevation (13.1, 13.2, 13.3) protruding in the direction of the light source is formed between them, characterized in that the outside (12) has a defined roughness R and a substantially parallel to the longitudinal axis of the cross section of the cover (1) running, first section (12a) as well as a second section (12b) arranged at an angle α to the longitudinal axis of the cross section of the cover (1), so that at the transition between the first section (12a) and the second section (12b) a first stage (12.1) is formed on the outside (12).