Abstract: A mounting framework for mounting contactless testing devices for testing molded objects, in particular glass objects, at high temperature, comprises a rigid frame structure positioned above a conveyor belt on which glass bottles at high temperature move. The conveyor belt is driven with respect to a conveyor frame with an adjustable inclination in the same vertical plane. The mounting framework is placed astride above the belt. The framework comprises two units defining two parallel reference planes and constituting a nondeformable structure which is not connected to the frame of the conveyor and is supported on the ground by three jacks with controlled displacements. Three light sources emit light rays whose characteristics depend on the inclination of the conveyor belt.

Abstract: Light emission or absorption device used in combination with at least one optical detection device including a linear array of reception photodiodes having a view of articles for the contactless inspection thereof, in particular of glass articles at high temperature, comprises a casing equipped with an opening in the form of an elongate slot flanked by two parallel plates forming a light guide. The casing contains a semi-reflecting mirror, an illumination device situated behind the mirror with respect to the slot, and an alignment of a plurality of individual lamps placed so that the light emitted by the lamps is reflected by the mirror in the direction of the slot. It is thus possible to carry out an accurate alignment adjustment by means of the aligned lamps before carrying out the inspection in bright field, by switching on the tubes, or in dark field by switching them off.

Abstract: Method for performing the automatic contactless inspection of objects manufactured at a high speed by an automatically controlled machine, in particular high-temperature glass objects, the objects moving in front of an optical measuring device, consisting in illuminating the moving objects with a non-coherent white light, sensing the transmitted light by means of an optical sensor (5) provided with a linear measuring strip (2) comprising a plurality of receptor photodiodes (3), the strip (2) being arranged with its longitudinal axis perpendicular to the movement of the objects (6) and to the focal point of a focusing lens (9), and storing the result of the sensing operation for a given number of objects.

Abstract: An object such as a bottle to be identified by its shape is made to travel between a source and an elongated radiation receiver in a direction oblique relative to the travelling direction of the object so as to define, during the travelling, positions in which said receiver presents a segment, the points of which are at least partly occluded by the object, flanked by first and second segments (X and Z) not occluded. The length variations of at least two of the three segments of said receiver are read out for obtaining a characteristic relation of the object shape. Parameters of this relation are compared with corresponding parameters of characteristic relations of the shape of typical objects so as to find out whether the object travelling belongs to the category of one of the typical objects, and if in the affirmative, to which of them. The invention is applicable to the automating refund of deposits on bottles.