| 摘要 |
The invention relates to a luminous device comprising at least one LED having a luminous flux of greater than 3 Lm, advantageously greater than 5 Lm, preferably greater than 10 Lm and even more preferably greater than 50 Lm, and to a cover made of a transparent plastic in which scattering particles with a content of 3 to 30% are dispersed. The scattering particles may be of organic nature. In which case they may be polyamide or PTFE particles, methyl-methacrylate-based crosslinked particles, crosslinked styrene-based particles or silicone particles. The scattering particles may be of mineral nature. In this case they may be BaSO<SUB>4</SUB>, TiO<SUB>2</SUB>, ZnO, CaCO<SUB>3</SUB>, MgO or AI<SUB>2</SUB>O<SUB>3</SUB> particles or hollow glass microspheres. The LED may be a colour LED or a white LED. |
