Korakis-Ménager, Sophie

System and computer-implemented method for detecting at least one defect in a tested optical article, the system being configured to obtain an image of the tested optical article, slice the image to obtain sub-images, a size of the sub-images being determined based on a size of at least one of expected defects, input the sub-images in a machine learning model, the machine learning model having been previously trained with model sub-images, the model sub-images being obtained by slicing of model images of model optical articles, the model-images being labelled with a location of at least one defect of the respective model optical articles, the model sub-images being labelled with the location of the at least one defect based on labels of the corresponding model image, the machine learning model being made to output an indication of the presence or absence of at least one defect.

System and computer-implemented method for detecting at least one defect in an optical article. The system is configured to obtain an image of the tested optical article, to input the image into a feature extraction machine learning model, the feature extraction machine learning model being configured to process the image and to output features; and, to input the features into a machine learning classifier, the machine learning classifier having been previously trained with sets of model features of respective model optical articles, the sets of the model features being labelled with an indication of a presence of at least one defect in the respective model optical articles, and the machine learning classifier being made to output an indication of the presence or absence of at least one defect.

System, head-mountable device and method for determining a value of a physiological parameter of an individual. The system comprises a head-mountable device intended to be worn by the individual. The head-mountable device comprises a first set of at least one sensor and a second set of at least one sensor. The at least one sensor of the first set comprises at least one LED and at least one photodiode. The at least one LED is arranged, so that light emitted by the at least one LED is reflected by the face of the individual and received by the at least one photodiode. Values outputted by the at least one sensor of the first set depend on an amount of the light received by the at least one photodiode. Values outputted by the at least one sensor of the second set depend on a distance between the face of the individual and the head-mountable device. The system is configured to determine the value of the physiological parameter of the individual based on values outputted by the at least one sensor of the first set and the values outputted by the at least one sensor of the second set.

A polymerizable composition for making thermosetting materials containing allylic monomers and/or oligomers and diisopropyl peroxydicarbonate (IPP) as an initiator, wherein the said composition comprises: • A UV absorber in an amount ranging from 0.1 to 2 % wt, • A phosphite based molecule in an amount ranging from 0.2% wt to 1% wt.

A manufacturing device for additively manufacturing an object, the object encapsulating a component, the manufacturing device being configured for placing the component in a volume of an optically reactive material, irradiating, for forming a part of the object, a part of the optically reactive material, the part of the optically reactive material being adjacent to the component, the irradiating being realized with a first light of a first wavelength and a second light of a second wavelength, wherein the irradiation of the part of the optically reactive material depends on a value of at least one characteristic of the component.

System and computer implemented method for determining updated values of manufacturing parameters to reduce defects in manufactured items. The system is configured for receiving descriptions of the defects, the descriptions being provided in a natural language, converting the descriptions into inputs suitable for a deterministic problem-solving module and feeding the inputs in the deterministic problem-solving module to obtain the updated values of the manufacturing parameters.

The invention relates to a method for making a polymerizable composition to produce an anti-abrasion hard coat which does not comprise adding organic solvent, the method consisting of (a) Stoichiometrically hydrolysing a tetraalkoxysilane compound bearing hydrolysable groups with HCl solution having a concentration between 0.025 to 0.05N to obtain a first composition; (b)Adding an epoxysilane monomer to the first composition; (c)Stirring the composition resulting from step (b); (d)Adding an excess amount of DI water for hydrolysing said epoxysilane, and lowering the HCl concentration under 0.025 mol.L^-1; (e)Adding a polymer catalyst under stirring.

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Zusammenfassung wird geladen …

Zusammenfassung wird geladen …