Abstract: A method for measuring the thickness of glass containers includes the following steps: choosing to measure the radiation emitted by the container from a first side and a second side of the container diametrically opposite to each other; choosing to measure the radiation emitted by the container in a first spectral band in a range between 2,800 nm and 4,000 nm and in a second spectral band; simultaneously measuring, from each side of the container, the intensity of the radiation coming from the walls in the first spectral band and in the second spectral band; and determining at least the thickness of the first wall and of the second wall (22), from the measurements of the intensity of the radiation coming from the first wall in the first and second spectral bands and from the second wall in the first and second spectral bands.

Abstract: A station for detecting glass disease-type defects in a segment of containers includes: a non-deformable support on which the projectors and the imagers are mounted by a complete connection so as to fix beam directions of the projectors and the optical axes of the imagers; several sets of projectors each include at least six projectors whose beam direction is tangent to a cylinder with a diameter included in a determined range of diameters; an electronic system configured to inspect the containers falling within all of the ranges of diameters, such that during inspection of the containers whose segment diameter to be inspected is included in the range of diameters of a set, the electronic system ensures acquisition of at least six images of each container when it passes through the inspection area by selectively activating the at least six imagers simultaneously with the associated projectors of said set.

Abstract: The invention relates to a method for inspecting containers, comprising: providing a first source of light illuminating the containers, said source being composed of a plurality of elementary light sources that are controlled so as to define at least three illumination zones (S11); providing at least three image sensors (C11, C12, C13); acquiring at least one image of the container illuminated by an associated illumination zone, the elementary light sources of the illumination zones (S11) being controlled so that: the at least three illumination zones (S11) associated with the image sensors have identical angular widths (L11); the at least three illumination zones (S11) associated with the image sensors have symmetric angular widths (L11); and at least two angularly neighbouring illumination zones have a common illumination portion (S112).

Abstract: The invention relates to an optical-computing device and method for analysing a container (12) made of transparent or translucent material by means of a polarimetric camera (18), comprising: —acquiring at least one master digital image (IM) of the container using the photoelectric sensor (22) of the polarimetric camera; —computing an intensity image (It) in which the value of each intensity pixel (Pt(n)) is an averaged value of the value of at least two pixels of the master digital image corresponding to two circular analyses in opposite directions to one another, or two linear analyses of orthogonal polarisation axes or two orthogonal elliptical analyses; —computing at least one phase-shift image (ID) by calculating, for a series of composite pixels, a phase-shift pixel (Pd(n)) from the value of a set of one or more partial pixel(s) (Ppk(n)) belonging to a combination of one or more partial images (Ipk).

Abstract: The invention relates to an optical computing method and system for inspecting in through light a container (12), in which: the container is illuminated by elementary emitting areas each emitting a polarized emitted light with an emitted polarization property of interest that varies according to a law of periodic variation which, over a primary period (T1), follows a triangular variation as a function of the position of the elementary emitting area along the primary direction (D1); digital images are acquired, with at least one camera, with interposition of a linear analyzer (30(n,k); 30.1, 30.2) having a given axis of polarization (Ak) for a partial digital image ((Ipk.m); at least one primary raw refraction image (IR1) is calculated, each pixel of which is representative of the refraction undergone by the light. The system advantageously includes a two-dimensional matrix (16c) of liquid crystal cells.

Abstract: The invention relates to an installation for observing or illuminating a container (2) section (t) travelling in translation and each having an axis of revolution (S), the installation including optical systems (61) translationally guided along a parallel direction an adjustment portion of their respective optical paths, and which have, for containers having a section with a first diameter, their respective work volumes each coincident with a part of said container section having the first diameter, the installation including at least one driving device (15) providing, when the containers have a section with a second diameter different to the first diameter, the movement in synchronous translation of the optical systems along a direction parallel to the adjustment portion of their respective optical paths and as a function of the difference between the first and the second diameter.

Abstract: The invention relates to a method and an installation for automatically measuring linear dimensions of manufactured objects (2) of a series comprising: the disposition of at least one focal point (Fj) of X-rays, on a same base straight line parallel to the rectilinear trajectory of displacement of the objects and of one or several image sensors (Ci); the acquisition, for each object during its displacement, of a set of one-dimensional images comprising, for a number (NK) of distinct section planes (Pk) containing the base straight line, a number (NP) of said images obtained along at least three different directions of projection (Dijk) in the section plane; for each object, and for each distinct section plane (Pk), the determination, from the images obtained, of a delineation of the object in the considered section plane (Pk).

Abstract: An inspection line comprises: at a finish inspection station, a finish inspection installation capable of detecting without contact, by light rays, check-type defects in the neck of the containers; at a base inspection station, a base inspection installation capable of detecting without contact, by light rays, check-type defects in the base of the containers; and at a radiographic measuring station, a radiographic installation for automatically measuring linear dimensions of at least one region to be inspected of containers. The three installations are each arranged at stations distinct from each other along a trajectory of displacement of the containers. In each installation, a section of the transport device ensures, in the inspection area of the installation, the transport of the containers along a rectilinear portion of the trajectory (T) in a horizontal conveying plane (Pc) perpendicular to the central axis of the containers.

Abstract: The invention relates to a method for conveying in translation, in a transport zone, glass containers (2) held in a suspended position between two slide rails on which slides a counter-ring (7) arranged on each container which has a ring surface (8) defining the opening of the container, the method consisting of ensuring the movement in translation of the containers (2) by a bearing surface (18a) of at least one belt (18) driven in translation and exerting mechanical pressure on each ring surface (8) of the containers (2) to create a bond by adherence between each ring surface (8) of the containers and the bearing surface (18a) of the belt.

Abstract: The invention concerns a method for measuring the dimensions of empty glass containers (2) consisting in: selecting at least one region to be inspected of the container, transporting the containers, positioning, on either side of the region to be inspected, at least one focus of an X-ray generator tube and image sensors, acquiring, using image sensors, for each container during its displacement, at least three radiographic images of the inspected region, analyzing the at least three radiographic images so as to determine the three-dimensional coordinates of a set of points to deduce at least one inner diameter of the neck and/or one thickness of the body.

Abstract: A measurement method comprises acquiring, using image sensors (Cji) for each object during its displacement, at least three radiographic images of the region to be inspected. The images are obtained from at least three radiographic projections of the region to be inspected, the directions of projection (Dji) of which are different from each other. A computer system is provided with an a priori geometric model of the region to be inspected for the series of objects. Using the computer system and considering a constant attenuation coefficient and, from the a priori geometric model, at least three radiographic images of the region to be inspected, a digital geometric model of the region to be inspected is determined. For each object of the series, from the digital geometric model of the region to be inspected, at least one linear dimension measurement of the region to be inspected is determined.

Abstract: An inspection device which is compatible with in-line inspection of containers and reliably determines the presence or not of a defect of a container, has a lighting system arranged above an installation zone and being capable of providing an incident light beam, an image sensor connected to an image-analysis unit, and an optical system with a first primary reflection surface arranged above the installation zone and interposed between the installation zone and the sensor for forming on the sensor an image of a container ring surface to be inspected. Also included is a second primary reflection surface in the upstream field of vision of the sensor to reflect light beams, directly or indirectly in the direction of the sensor. The first and second primary reflection surfaces determine first and second portions of a downstream field of vision, which overlap in the inspection zone.

Abstract: The invention relates to a method, a device and an inspection line for determining the three-dimensional geometry of a container ring surface, including the formation, by two optical systems (24, 24?), of two images of the ring surface of the container, according to two peripheral observation fields having a first and a second observation elevation angle (?1, ?2) different from each other.

Abstract: The invention relates to an installation for optically inspecting containers (2) manufactured by a forming machine at the outlet of which the containers travel by means of a conveyor (5) past at least one inspection device (I) including at least one camera (10) mounted inside a support chamber (11). The installation includes a system for fastening the support chamber (11) on the conveyor (5) in such a manner that the support chamber (11) is positioned on one side of the conveyor and presents, below the conveyor, a low section (11b) in which the camera (10) is mounted, the support chamber (11) also presenting, above the conveyor, a high section (11h) provided with an observation port (15) and in which an optical deflector system (16) is mounted.

Abstract: A method of determining the capacity of containers (1) comprises using an X-ray computed-tomography apparatus (10) to acquire a plurality of X-ray images (I) of the container at different projection angles. The X-ray images are analyzed in order to construct a model of the container from the X-ray images, determine the inside surface of the digital model of the container, position a filling level plane on the digital model of the container parallel to the support surface and at a nominal distance from the top of the digital model of the container, and measure by calculation the inside volume of the digital model of the container as defined by the inside surface of the digital model and by the filling level plane, the measurement being the filling capacity of the container.

Abstract: A method of determining a presence of a wire-edge at the site of an internal edge of a ring surface of a ring of a container includes lighting of the ring surface of the container from above using a radial light beam at 360 and observing the ring surface according to a peripheral observation field. A first principal circle is formed in a first image zone. At least one secondary arc of a circle concentric to the first so-called principal circle, and radially offset relative to the latter is also formed in the first image zone. The first so-called principal circle and any first secondary arc of a circle are searched using the first image zone. A device for executing the determining method is provided along with a line including the device.

Abstract: An installation (2) for optically inspecting containers (3) includes a support table (7) for containers, which table has a slide plate (8) on which the bottom of a container stands. The slide plate (8) includes a portion (18) that is movable under the action of an actuator (19) to move the movable portion (18) between a transfer position in which the movable portion is flush with the table, and an inspection position in which the movable portion (18) is set back relative to the slide plate (8). A light source (14) and a light sensor (15) are positioned so that, in the inspection position of the movable portion, the sensor can receive a light beam propagating in an inspection volume (V) in which there is situated at least a portion of the bottom (4) of the container spaced apart from the slide plate.

Abstract: The invention provides a method and a system of checking a procedure for the optical inspection of glass containers (12), characterized by a procedure for the optical recognition of a control mark (42) of a control container having optical properties of transformation spectral such that: the transformation of the spectral intensity distribution between the incident (LRi) and return (LRr) recognition lights, by the mark (42), is different from that caused by interaction with a marking portion free of any mark (46); the transformation of the spectral intensity distribution between the incident (LIi) and return (LIr) inspection lights, by the mark, is not different, inside at least one useful portion of the inspection spectral band (BSI), from that caused by interaction with a marking portion free of any mark (46).

Abstract: The invention provides a device for optically inspecting high temperature glass containers (2), the device comprising a lighting system (7) having a light-emitting surface that is adapted to emit both: a “flash” first light flux during a flash duration of less than 1 ms and at a wavelength longer than 650 nm; and also a “bottle-scanning” second light flux having wavelengths shorter than 650 nm and for a duration of not less than 2 s, the lighting system (7) being controlled: to emit the flash light flux so that the camera can take images of each container while back-lit by said flash light flux; and to emit the “bottle-scanning” light flux that is perceived by a human eye as being continuous.

Abstract: The invention relates to a determination process of the presence of a wire-edge at the site of an internal edge of a ring surface (16) of a ring of a container, comprising: lighting of the ring surface (16) of the container from above, by means of a radial light beam at 360 and its observation according to a peripheral observation field formation in a first image zone, of a first principal circle; and of at least one secondary arc of a circle concentric to the first so-called principal circle, and radially offset relative to the latter. search, in said first image zone, of the first so-called principal circle and any first secondary arc of a circle. The invention also relates to a device for executing such a process and a line comprising such a device.