Lighting device with improved thermal properties

A lighting device, comprising:

• an exit window;
• a light source substrate arranged to carry at least one solid-state light source, said at least one light source being arranged to emit light through said exit window, the light source substrate having an edge;
• and
• a body arranged to surround said at least one light source and said light source substrate, the body comprising a reflective surface provided on an inside surface of the body to reflect light emitted from said at least one light source towards said exit window, the reflective surface arranged around the edge of the light source substrate and below the at least one solid-state light source;
• wherein said exit window is shaped to allow a front surface of said light source substrate to be brought into physical contact with a surface of said exit window facing said light source substrate,
• and in that said light source substrate is held in physical contact with said exit window, thereby enabling thermal contact between the light source substrate and said exit window, thereby facilitating the heat transfer from the at least one solid state light source towards and through the exit window;
• said lighting device further comprising a driver substrate arranged to carry a light source driver circuitry and a biasing element being sandwiched between said light source substrate and said driver substrate, thereby pressing said light source substrate into thermal contact with the exit window and said driver substrate into thermal contact with said body.