Abstract: A bar-type display utilizing incandescent lamps stacked in a linear array in a metallic lamp block preferably of aluminum shaped to form a parabolic reflector configuration along its length and a tongue and groove configuration for attachment to an insulating connector block. Fins are provided on each side of the block for heat dissipation and grooves are formed transversely of the block through the parabolic reflector configuration at intervals into which barrier plates are inserted to sectionalize the block into separate reflectors for each lamp. To disperse the radiated and reflected light, a plastic diffuser is placed across the top of the reflector configuration, which may be colored to color the transmitted light, and to provide anti-reflective qualities for non-glare viewing.The insulator connecting block is molded to the lamp block and the lamp pins are arranged so that alternate lamps may be powered by separate power supplies for redundancy purposes.

Abstract: A bar display comprising incandescent segmented display module presenting a plurality of dot positions to the viewer wherein a plurality of miniature incandescent lamps illuminate all the segments except one, the latter segment being illuminated by an elongated incandescent lamp capable of illuminating not only this one remaining segment but all segments or supplementing the miniature lamps depending on ambient light conditions. This arrangement permits a fully lighted dot position bar display with only one lamp thus saving power or permits a dot position bar display with each individual miniature lamp illuminated separately or a bar display responding to ambient lamp conditions, by utilizing only the elongated lamp alone or the elongated lamp plus the miniature lamps as desired.