This invention relates to a lighting device comprising a condenser which is operably linked to a light source comprising a plurality of LED elements. The collector, the first surface being formed to receive the optical radiation emitted from the light source the light incident portion (5) and (51), a light emitting portion (6) of propagation of a light beam having a ring-shaped It consists of a solid transparent body having a second surface formed to, a plurality of protrusions protruding from the first surface in the light incident portion (7), wherein the protrusion light coming from the light source a plurality of reflecting surfaces of the optical radiation that acts as a collimating lens of the radiation was received from the light incident portion (8, 9), and the projecting portion, and the reflective surface, a light emitting portion and the light incident portions During, to propagate the optical radiation coming from the light source along the predetermined optical path extending inside of the transparent body, and is disposed to one another.この発明は、複数のLED素子を備える光源に作動的に結合した集光器を備える照明装置に関する。その集光器は、光入射部(5)が光源から出射される光放射を受入れるように形成された第1表面(51)と、光出射部(6)がリング形状を有する光ビームを伝播するように形成された第2表面と、前記光入射部において前記第1表面から突出する複数の突出部(7)とを備える固体透明体から構成され、前記突出部は、前記光源から来る光放射のコリメートレンズとして作用し、前記光入射部から受入れられた光放射の複数の反射面(8,9)と、前記突出部と、前記反射面とは、前記光入射部と光出射部との間に、前記透明体の内部で延びる所定の光路に沿って前記光源から来る光放射を伝播するように、相互に配置される。
