NAVIGATIONAL BLINKING DEVICE OF DIRECTED ACTION Russian patent published in 1994 - IPC

FIELD: navigational equipment. SUBSTANCE: case 1 house focusing holder 2 with light-emitting diode placed in it. Lens 4 is focused in case with the aid of front lid 5. Leads-out of diode 3 are connected to automatic unit 6 for control over warning light mounted in rear lid 7 linked to power supply source. Case of device is joined to bracket 9 attached to navigational mark with the help of hinge 8. Biconvex lens with two mutually perpendicular cylindrical surfaces which have different angular scales of light increase in horizontal and vertical planes is used in device in the capacity of optical system. Besides this optical system can be manufactured in the form of set of lenses, one of them being positive spherical lens installed immobile and the other one is mobile with either cylindrical or negative concave surface. EFFECT: simplified design, improved operational capabilities. 14 cl, 10 dwg