Patent ID: 8897637

Claim:
A method for identifying at least one object having a connection unit that can be connected to a receptacle unit of a receptacle arrangement, wherein contactless, optical information transfer takes place between the connection unit and the receptacle unit if the connection unit is connected to the receptacle unit, the method comprising: generating and transmitting an optical signal having predetermined optical properties using at least one transmitting unit, the predetermined optical properties including a predetermined polarization value; transferring the optical signal via at least one optical transfer path; receiving the optical signal with at least one receiving unit; evaluating properties of the received optical signal with an evaluation and control unit connected to the receiving unit, the evaluated properties including a polarization value; and identifying the object by comparing the polarization value with the predetermined polarization value; wherein the transmitting unit is arranged on a connection unit side or on a receptacle unit side and the receiving unit is arranged on the connection unit side or on the receptacle unit side.