Detecting an object having an elevated temperature

The invention relates to a detector arrangement (10) for detecting an object (18) having an elevated temperature, the arrangement comprising: —� a light conducting body (12), —� a thermochromic layer (13) comprising thermochromic material adapted to change from an opaque state to a light transparent state with increasing temperature or vice versa, the thermochromic layer (13) being arranged in such a manner relative to the light conducting body (12) that light incident on the light conducting body (12) has to pass through the thermochromic layer (13) and —� a light detector (15) coupled with the light conducting body (12).