Abstract: Object identifying device, e.g. a bottle receiving device, comprising a transport apparatus for transporting the objects such as bottles, an identifying device with a data processing unit for identifying and accepting bottles having certain given shapes, and a recording device for recording accepted bottles. The identifying device comprises a principally stationary illuminating device for illuminating the bottles, a detector for examining the bottles, and a conveyor for moving the bottles past the detector. A mirror system is interposed between the illuminating device and the detector, with which the optical length of the entire system can be increased without increasing the structural dimensions thereof.