An inflator for a protective device in a vehicle includes a diffuser forming a substantially rotation-symmetric external housing of the inflator with a dosing member, wherein the diffuser includes a plurality of discharge orifices arranged in a row, and which are of circular shape. The sealing member includes an inorganic layer of which a lower surface is opposite to an upper surface thereof and closer to the pixels than the upper surface, and each of the upper surface and the lower surface has an uneven shape. The array of light sources can be positioned such that its output plane is substantially one focal length away from the lens along the optical axis. The heat exchanger and the condenser are able to selectively operate in an active cooling mode and a passive cooling mode.