LIGHT-EMITTING DIODE LAMP Russian patent published in 2000 - IPC

FIELD: applicable in signal lights of circular or directive action, searchlight-type illumination devices. SUBSTANCE: the lamp has groups of light-emitting diodes equidistant from the longitudinal axis installed on a holder made in the form of a hollow convex polyhedron inscribed in the curved surface of a sphere section so that its lateral faces are perpendicular to the straight lines outgoing from the single luminescent center coinciding with the sphere center. Installed on each face of the polyhedron is one or more light-emitting diodes with optical axes perpendicular to this face; the optical axis of one of the light-emitting diodes passes through the mentioned luminescent center. The convex polyhedron may be made in the form of a combination of hollow correctly truncated pyramids conjugated by the bases, inscribed in the curved surface of the spherical zone. The upper base of the upper truncated pyramis is made in the form of a flat plate with light-emitting diodes installed on it, and the opposite base of the lower pyramid is mechanically attached to a foot with current-conducting elements of the lamp base. The holder of the light- emitting diodes may also be made in the form of a hollow icosahedron or dodecahedron inscribed in a sphere section with light-emitting diodes installed on the faces. The leads of the light-emitting diodes are soldered on flat rings of different diameter, or on shells rolled up in a cylinder, which are installed inside the hollow convex polyhedron-holder of the light-emitting diodes. EFFECT: expanded functional capabilities of radiation of light and parameters, enhanced uniformity of lamp light distribution. 7 cl, 8 dwg