SEMICONDUCTOR LIGHT SOURCE HAVING A PRIMARY RADIATION SOURCE AND A LUMINESCENCE CONVERSION ELEMENT

摘要

The invention relates to a semiconductor light source having a primary radiation source (1) that, in operation, emits electromagnetic primary radiation (5) in a first wavelength range and having a luminescence conversion module (2) into which primary radiation (5) emitted by the primary radiation source (1) is coupled. The luminescence conversion module (2) comprises a luminescence conversion element (6) that absorbs primary radiation (5) from the first wavelength range by means of a luminescent material and emits electromagnetic secondary radiation (15) in a second wavelength range. The luminescence conversion element (6) is disposed at a distance from the primary radiation source (1) on a cooling body (3). Said luminescence conversion element (6) comprises a reflector surface (7, 71, 72) that reflects back primary radiation (5) traveling into the luminescence conversion element (6) but not absorbed thereby and/or reflects secondary radiation (15) in the direction of a light decoupling surface (601) of the luminescence conversion element (6).