A device and method are described having/using at least a first radiation source and a second source of radiation, at least one measurement or detection device as well as at least one evaluation system with the first radiation source and second radiation source either oriented towards a top or bottom side of the optically effective object, or together oriented towards the top or bottom of the optically effective object, whereby at least the first radiation source emits reflective radiation towards the optically effective object and/or excitation radiation emitted for the stimulation of luminescence radiation in the material of the optically effective object and/or in the coating material of the optically effective object, and whereby the second radiation source at least emits radiation that penetrates through the optically effective object.