公开(公告)号：EP2914955A1

公开(公告)日：2015-09-09

申请号：EP13782692.1

申请日：2013-10-23

申请人： Phoenix Contact GmbH & Co. KG

发明人： GRUNERT, Fred ,  HAILER, Fredrik ,  NIMZ, Thomas

IPC分类号： G01N21/89

CPC分类号： G01J3/0297 ,  G01J3/027 ,  G01J3/10 ,  G01J3/42 ,  G01N21/31 ,  G01N21/8806

摘要： Apparatus for illuminating the surface of a material, comprising an illuminating device (101) for illuminating the surface of the material (103) with a calibrating light (105), a recording device (107) for recording a measuring light (109), emitted by the surface of the material (103) in response to the calibrating light (105), and a processor device (111) for recording the spectral characteristic of the measuring light (109) that characterizes a diffuse spectral reflectance of the surface of the material (103), wherein the illuminating device (101) is designed to produce an illuminating light (113) for illuminating the surface of the material (103) that has a spectral characteristic that corresponds to the spectral characteristic of the measuring light (109).