Component and arrangement for an illumination device, in particular a lantern of a street lamp

摘要

The component has a light collector (1) including an inlet face and a lateral face that are co-jointly arranged for delivering convergent luminous flux in an outlet face. A light guide (15) e.g. prism, comprises a base face that is connected to the outlet face of the collector. A large lateral face (19) of the light guide includes a reflection surface that is arranged with respect to the outlet face in a manner to orient an assembly of a central zone of a light beam issued from the collector toward a parabolic refraction surface. Independent claims are also included for the following: (1) an optical assembly for a lighting device (2) a public lighting device comprising a light source.