1. A system for optical recognition of the position and movement of an object on a positioning device, which includes a drive member for driving the object in rotation or along a curvilinear or rectilinear path, the system including a digital camera for detecting the position or orientation of the object, and a data processing station for data supplied by the digital camera, a certain number of different figures or references being distributed over the external surface of the object, the arrangement of each figure on the external surface of the object enabling the digital camera, associated with the data processing station, to determine the position or orientation of the object on the positioning device, wherein the object is a spherical support element for an electronic device, and wherein the figures or references are formed by circular barcodes which are different from each other, and which are regularly spaced and uniformly distributed on the external surface of the spherical element, each circular barcode defining a precise position of the spherical element on the positioning device.