Lighting device

A lighting device comprising:

• a plurality of light sources, each light source of said plurality of light sources being arranged to, in operation, emit light from an injection surface, and
• first secondary optics and second secondary optics, said first secondary optics is a light mixing module comprising a light guide having a surface formed as a rim parametrically arranged about said light guide and spanning between a top surface of the light guide and a bottom surface of the light guide,
• said plurality of light sources being arranged within said first secondary optics,
• said first secondary optics being arranged such that said light emitted by said light sources is injected directly into said first secondary optics via said injection surfaces, said injection surfaces being side surfaces of said light sources that face toward said rim of said first secondary optics, said first secondary optics causing light to be emitted in a direction from said rim towards said second secondary optics,
• said second secondary optics being a reflective light collimating element having a circumferential surface arranged such as to extend around said plurality of light sources and said first secondary optics,
• said first secondary optics and said second secondary optics causing said light being emitted by each light source of said plurality of light sources to be mutually substantially overlapping before extraction from said lighting device, and
• said first secondary optics comprising one or more reflecting surface segments formed on said rim for reflecting light back into said first secondary optics and one or more extraction surface segments for emitting said light from said first secondary optics in said direction toward said second secondary optics wherein the one or more reflecting surface segments and the one or more extraction surface segments comprise a plurality of segments formed on the rim that alternate parametrically about the rim.