An imaging lens assembly includes first, second, third and fourth optical lens elements that are arranged sequentially from an object side to an image side along an optical axis and that respectively have negative, positive, positive and negative refractive powers, and a fixed aperture stop that is disposed between the first and second optical lens elements. The line structures are superimposed at least partly by fine structures rendered in positive or negative representation. The outer casing has a top and a lower end; and the top and lower end of the outer casing are fixed to an inner casing through a frame. An organic layer is formed on the plurality of the anodes and the auxiliary electrode. Preferbly, said inhibitor is unable to promote death of IL-3 dependent cells cultured in presence of IL-3. The fire receiver comprises a LAN interface for connecting with other fire receivers, transmits the fire information over the LAN together with a group number set in advance when a fire sensor issues an alarm, and displays only the fire information of the same group number when the fire receiver receives fire information transmitted from the other fire receivers via the LAN.