LIGHTING DESIGN Russian patent published in 2017 - IPC F21V5/04 F21V8/00 F21S8/10 F21Y101/00 

FIELD: lighting.

SUBSTANCE: lighting structure (1, 1') comprises a light source (2) for generating light, a scattering element (3) configured to scatter the generated light in a scattering plane (S) determined by the optical axis (Ao) of the light source (2) and the longitudinal axis (L) of the scattering element (3) to provide a substantially uniform amount of light per area unit on the radiation surface (41, 51) orthogonal to the scattering plane (S) and parallel to the longitudinal axis (L) of the scattering element (3). The scattering element (3) comprises two distinguishable projections (30) aligned along the longitudinal axis of the scattering element (3), so that the light source (2) is accommodated by the scattering element (3) substantially symmetrically between these two projections (30). A light-redirecting element (4) comprises a longitudinal flat radiation surface (41, 51) and is arranged to collect the light scattered sidewise in the scattering plane (S) and to radiate the collected light substantially uniformly above the radiation surface (41, 51). The light-redirecting element (4) is configured to refract the light into the radiation plane (E), which contains the continuation of the scattering plane (S). The light-redirecting element (4) comprises a plurality of distinguishable sideways refraction zones (40, 40", 40") to collect the sideways-scattered light.

EFFECT: improved lighting efficiency and simplified design.

6 cl, 11 dwg