OPTICAL ELEMENT AND LIGHTING DEVICE COMPRISING AN OPTICAL ELEMENT

摘要

The present invention relates to an optical element (1, 1a, 1c), provided for beam shaping for radiation emitted by a radiation-emitting semiconductor chip (8), wherein the optical element (1, 1a, 1c) has a radiation entrance surface (2) and an interface (3) with a first region (4) and a second region (5), said interface being different from the radiation entrance surface (2), wherein the first and the second regions (4, 5) are arranged and embodied such that a first radiation portion (9) of radiation that enters into the optical element (1, 1a, 1c) through the radiation entrance surface (2) is reflected in the first region (4) and, after reflection in the first region (4), is deflected in the second region (5) in the direction of a plane defined by the radiation entrance surface (2).