ES52222U - Improvements in the construction of lighting equipment (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A LIGHTING DEVICE, characterized in that it essentially comprises a reflector which at the same time constitutes the resistant housing of the apparatus, whose reflector has an elongated concave surface provided with a plane of symmetry in the longitudinal direction, as well as a plane perpendicular to the previous one, whose The line of intersection between the two planes serves as axis to the apparatus, arranging the sources of illumination in the plane perpendicular to the longitudinal line of symmetry, so that the aforementioned concave surface, in its section by the main plane of symmetry, comprises a concentric upper aperture with the previous intersection line, as well as, on each of the sides of the indicated opening, a parabolic part followed by another elliptical part until reaching the lower edge of the reflector, with the particularity that the successive sections by parallel and perpendicular planes all them to the intersection line first quoted in the corresponient The upper height of the reflector that goes from its upper opening to the beginning of the elliptical parts -consists of increasing ellipses, and in contrast in the remaining and lower part of the reflector, these sections are formed by composite elliptic curves, each of which it has at least one of its longitudinal ends cut and truncated by several curved and transverse segments of greater curvature that are linked together, constituting reflective secondary surfaces that are arranged to direct the light that reaches the main reflecting surface constituted by the successive opposite longitudinal and elliptical segments of the multiple sections of the reflector, all of them perpendicular to the aforementioned intersection axis. (Machine-translation by Google Translate, not legally binding)