A LENS, A LIGHTING MODULE HAVING THE LENS AND AN INDOOR WALL WASHER

摘要

The present invention relates to a non-rotational symmetric lens (L) comprising a lens mainbody (M) and a lens base (S) supporting the lens mainbody (M). The lens mainbody (M) comprises an outer surface emitting light and an inner surface receiving light from a light source, wherein the outer surface comprises a first asymmetric curve surface (A) having a first continuous curve shape; the inner surface comprises a second rotational symmetric curve surface having a second continuous curve shape; the lens mainbody (M) further comprises a third curve surface (C) configured to at least partially reflect light from the second curve surface (B) to the first curve surface (A). In addition, the present invention relates to a lighting module mounted with such lens (L) and an indoor wall washer formed by an array comprising a plurality of the lighting modules. The lens (L) according to the present invention may improve the light efficiency, further restrains glare and may obtain a good optical performance.