Light emitting device

A light emitting device comprising:

• at least one light source, and
• a light guide unit comprising at least a first light guide and a second light guide each comprising a light input end surface arranged to receive light emitted from said at least one light source, and a light output end surface arranged opposite said light input end surface, said first light guide and said second light guide of said light guide unit being arranged in a nested relationship,
• at least a first part of said first light guide and said second light guide having a thickness and being bent in a bending radius R in between the light input end surface and the light output end surface near said light output end surface, such that said first light guide and said second light guide both bend away from the center axis of the light guide unit in a plane parallel to the center axis;
• at least a second part of the light guide unit being substantially straight and extending from the light input end in a direction substantially parallel to the center axis of the light guide unit,
• at least said first light guide of said light guide unit being ring-shaped in cross section,
• wherein a sum of the thicknesses of the first and second light guides at the first part is approximately equal to a combined thickness of the light guide unit at the second part, wherein the thickness of the first light guide and the second light guide is selected with respect to bending radius R to substantially avoid light leakage through a side surface of the first light guide and a side surface of the second light guide.