REFLECTOR LAMP

摘要

IMPROVED REFLECTOR LAMP A reflector lamp has a concave reflector having a parabolic rear section, a spherical intermediate section and a faceted parabolic front section, the three sections having substantially the same focal point. A finite light source is located at the common focal point. The reflector sections are dimensioned so that substantially all light rays from the light source which are reflected by the spherical intermediate section become re-reflected by the faceted parabolic front section. Additionally, the light rays reflected by the facets include components thereof which are circumferential about the central lamp axis and thereby provide a beam pattern which is substantially circumferentially uniform about the lamp axis.