The lens (3) is configured for reducing a divergence of light (L) from a light source (2) and comprises a light incidence side (31) with a plurality of Fresnel elements (32) and a light emission side (41) with a plurality of emission lenses (42). The Fresnel elements (32) and the emission lenses (42) are optically distinctly associated with one another. The fresnel elements (32) each have an incidence surface (33) which is convex and forms an incidence lens with a first focal length. The emission lenses (42) have a second focal length. In addition, the Fresnel elements (32) are each provided with a deflection surface (34) arranged optically directly after the incidence surface (33), which is configured to deflect the light (L) entering through the incidence side (31) towards the associated emission lens (42) by means of total reflection. The incidence surfaces (33) and the corresponding emission lenses (42) are positioned in relation to one another in their respective focal points (F) with a tolerance of max. 20% of the first and/or the second focal length.
展开▼