FIELD: electricity.
SUBSTANCE: invention relates to lighting engineering. Light-emitting module (1) comprises a light source array of solid state light-sources arranged along geometrical line (O), and envelope (40) surrounding light unit (10). Envelope comprises base structure (6) extending along the light source array and including a diffuse reflective portion, two side reflector regions (4, 4') arranged on opposite sides of the base structure, and curved prism sheet (8) extending between the two side reflector regions at constant distance (R) from geometrical line (O). Curved prism sheet includes plurality of prism structures (28) having right top angles and arranged such that light emitted from the light sources and directly incident on the prism structures is retroreflected back towards geometrical line (O), while light incident on the prism structures after being diffused by the diffuse reflective portion and/or being reflected by the side reflector regions, is transmitted through the curved prism sheet.
EFFECT: technical result is providing efficiency and uniformity of radiation.
14 cl, 5 dwg
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