Abstract: A virtual reality or augmented reality vision system including: a first emission module, emitting light in the visible range; a second emission module, emitting light in the infrared range; an infrared-sensitive photodetection module; and a micromirror array. Each micromirror is capable of assuming a first position and a second position. Each micromirror of the micromirror array is configured to, in its first position, receive light from the first emission module and reflect it along an axis of interest. Each micromirror of the micromirror array is configured to, in its second position, receive light from the second emission module and reflect it substantially along the axis of interest, and receive light propagating along the axis of interest and reflect it towards the photodetection module.

Abstract: Display device including: an array of pixels comprising several pixel blocks; a video card comprising an input configured to receive a digital signal to be displayed by the array of pixels, and an output coupled to the blocks via at least one main data bus; and wherein: the array of pixels comprises control circuits each associated with one of the blocks, coupled to the main data bus and including a main memory circuit; the video card includes a compression circuit configured to compress, before sending them to the output, the digital data to be displayed by the blocks; each control circuit includes a decompression circuit for decompressing the part of the digital data received by the control circuit before storing them in the main memory circuit.

Abstract: A display device (100) including at least: an array of display blocks, each display block comprising luminous elements (118) and a driving circuit (122) for the luminous elements; an array of control circuits (114) associated with the display blocks; a video card receiving an encrypted digital signal to be displayed and sending the encrypted digital data to be displayed to the control circuits; and wherein each control circuit includes: a first memory circuit (116) receiving and storing the encrypted digital data; a second memory circuit (124) storing a decryption key; a decryption circuit (136) decrypting the encrypted digital data using the decryption key.

Abstract: An optoelectronic device including at least an emissive component including at least a first electrode, a second electrode, and an emissive element disposed between an emissive face of the optoelectronic device and the second electrode, a photodetector component such that the second electrode of the emissive component is disposed between the photodetector component and the emissive element. The emissive component and the photodetector component are superimposed one above the other, and the second electrode has at least one hole passing through it, disposed vertically in line with at least a part of a detection surface of the photodetector component and/or a part of the detection surface of the photodetector component is not disposed vertically in line with the second electrode and form a ring located at the external edges of the detection surface of the photodetector component.

Abstract: Display device including: an array of pixels comprising several pixel blocks; a video card comprising an input configured to receive a digital signal to be displayed by the array of pixels, and an output coupled to the blocks via at least one main data bus; and wherein: the array of pixels comprises control circuits each associated with one of the blocks, coupled to the main data bus and including a main memory circuit; the video card includes a compression circuit configured to compress, before sending them to the output, the digital data to be displayed by the blocks; each control circuit includes a decompression circuit for decompressing the part of the digital data received by the control circuit before storing them in the main memory circuit.

Abstract: A programmable integrated circuit, including: at least one component that changes over time, changing autonomously within the integrated circuit, as a function of the time that has elapsed since an initialization phase of the integrated circuit, this change taking place by virtue of an internal radioactive source, at least one control circuit sensitive to the temporal change of the component and having at least one protected internal output that changes state only after a programmable predefined duration has elapsed since the initialization phase of the integrated circuit.

Abstract: Display device including: a pixel matrix comprising a plurality of pixel groups, each group comprising a plurality of pixel blocks; a video card comprising an input configured to receive a digital signal to be displayed, and a plurality of outputs each coupled to a group by an associated primary data distribution network, the video card being configured to decode the digital signal and send to each of the outputs of digital data encoded in a format suitable for the matrix and intended to be displayed by the group coupled to said output; and wherein: each group includes a plurality of control circuits each associated with a block of the group and coupled to the associated main data bus; each pixel includes a driver circuit configured to generate pixel control signals.

Abstract: Method for capturing a thermal pattern by a sensor comprising a plurality of pixels each comprising a heat-sensitive measuring element, the method comprising, for each pixel: heating the measuring element; first reading of the electrical charges outputted by the pixel during a first measurement duration and giving a first measurement value x1; second reading of the electrical charges outputted by the pixel during a second measurement duration and giving a second measurement value x2; calculating a difference x1??·x2, where ? is a positive real number, and wherein more than half of the heating duration is implemented during the first measurement duration and less than half of the heating duration is implemented during the second measurement duration.

Abstract: A virtual reality or augmented reality vision system (200) including: a first emission module (230), emitting light in the visible range; a second emission module (240), emitting light in the infrared range; an infrared-sensitive photodetection module (250); and a micromirror array (260), in which each micromirror (261) is capable of assuming a first position and a second position. Each micromirror of the micromirror array (260) is configured to, in its first position, receive light from the first emission module (230) and reflect it along an axis of interest. Each micromirror of the micromirror array (260) is configured to, in its second position, receive light from the second emission module (240) and reflect it substantially along the axis of interest, and receive light propagating along the axis of interest (201) and reflect it towards the photodetection module (250).

Abstract: The bottle has a neck sealed by a stopper. The safeguarding device (2) comprises a first and a second part (20, 21), the first part (20) being adapted to be integrated in the stopper (1) and the two parts (20, 21) being joined in translation while allowing a limited relative movement of one part with respect to the other when a traction force is applied to the safeguarding device (2) in order to remove said stopper (1) from the neck. According to the invention, the safeguarding device comprises an electrical component (212) disposed so that at least one electrical characteristic of said component is modified during the relative movement of the two parts (20, 21).

Abstract: The invention relates to a pixel matrix of a thermal pattern sensor comprising several rows and several columns of pixels, said matrix comprising: an active thermal element formed by a thermosensitive material disposed between a lower layer and an upper layer, the lower layer being constituted by a plurality of first tracks made of electrically conductive material and extending along a first direction, said first tracks forming pixel columns; a heating element, disposed on the active thermal element and forming a serpentine path, said heating element being constituted by a plurality of second tracks (L1, L2, L3, L4, L5, L6) made of electrically conductive material and connecting segments (w1, w2, w3, w4, w5, w6) made of electrically conductive material connected to the ends of the second tracks (L1, L2, L3, L4, L5, L6), said second tracks (L1, L2, L3, L4, L5, L6) extending in a second direction different from the first direction and forming lines of pixels, the second tracks being connected except for the

Abstract: A thermal pattern sensor including a matrix of pixels each comprising: a detection element formed by a portion of a detection material having a temperature coefficient of resistance greater than 0.2%/K; a metal portion configured to heat the detection element; a dielectric portion electrically insulating part of the detection element from the metal portion; and wherein: the detection elements of a same column of pixels all have the same electrical resistance value and are electrically coupled to each other and to a readout circuit; the metal portions of the same row of pixels are electrically coupled to each other; the sensor further includes an electromagnetic shielding layer covering all the detection elements and electrically insulated from said detection elements.

Abstract: Method for manufacturing a device comprising a stack including a first layer comprising electrical conductors electrically insulated from each other, a second electrically conducting layer, a third layer of pyroelectric material, said third layer being arranged between the first layer and the second layer, said method comprising, a) producing said stack on a substrate, the material of the third layer not being pyroelectric at this stage, b) producing a polarisation layer made of epoxy glue in electrical contact with the electrical conductors in the first layer, c) applying polarisation voltage to said third layer such that its material becomes pyroelectric, d) exposing the polarisation layer in its second state by ultraviolet radiation so as to make it at least partly electrically insulating.

Abstract: A thermal pattern sensor including a plurality of pixels arranged on a substrate. Each pixel has a pyroelectric capacitance formed by at least one pyroelectric material portion arranged between a lower electrode and an upper electrode. The sensor has an abrasion-resistance coating, located on the side opposite the substrate and including pillars embedded in an abrasion-resistance layer, the pillars having a thermal conductivity strictly higher than that of the abrasion-resistance layer. A high thickness of the anti-abrasion protection coating can be achieved with a high rate of thermal transfer through the latter.

Abstract: A papillary print sensor is provided, including a light emitting device configured to emit light radiation towards the sensor; and a matrix photodetector configured to be sensitive to at least part of an emission spectrum of the light emitting device, the light emitting device and the matrix photodetector being distributed together in and/or above a same semiconducting substrate, the light emitting device being composed of at least one gallium nitride light emitting diode (LED) with a series of through openings.

Abstract: The invention relates to a manufacturing process of a pixel array of a thermal pattern sensor comprising the steps of: providing a substrate; depositing a first layer of electrically conductive material, including depositing electrically conductive tracks, depositing of connector pins and depositing a ground strip; depositing of second layer of pyroelectric material covering the tracks and leaving at least part of the connector pins free; depositing of third layer of electrically conductive material; depositing of fourth layer of dielectric material in contact with the third layer; depositing of a fifth layer including electrically conductive heating tracks; depositing of a sixth protective layer, wherein the step of depositing the second and/or third and/or fourth and/or sixth layer is carried out by slot-die coating.

Abstract: Method for capturing a heat pattern with a sensor including a plurality of pixels each comprising a heat-sensitive measuring element, the sensor comprising an element for heating the measuring element, the method including carrying out the following steps for each pixel: a first heating step in which a first amount of heating power is dissipated in the measuring element; a first step of measuring the heat pattern, comprising a first read-out of the heat-sensitive measuring element, after a first delay time; a second heating step in which a second amount of heating power is dissipated in the measuring element; a second step of measuring the heat pattern, comprising a second read-out after a second delay time; and wherein the first amount of power is different from the second amount of power and/or the length of the first delay time is different from that of the second delay time.

Abstract: A system for vision in virtual reality or augmented reality is provided, in a support to be mounted on a head of a user, the system including a matrix of light-emission elements extending according to a display surface for display of images configured to be seen by the user; an optical projection system to form an image of the elements on a focusing surface at a distance from an eye of the user; a matrix of photo-detectors to acquire an image of a region of the eye extending according to a capture surface and arranged coplanar with the elements and at least partially overlapping with the capture surface and the display surface; and a computer to receive as an input the image acquired, and to process the same to deduce a parameter relative to the user, the optical projection system being a variable-focal-length optical system.

Abstract: Method for capturing a thermal pattern by a sensor comprising a plurality of pixels each comprising a heat-sensitive measuring element, the method comprising, for each pixel: heating the measuring element; first reading of the electrical charges outputted by the pixel during a first measurement duration and giving a first measurement value x1; second reading of the electrical charges outputted by the pixel during a second measurement duration and giving a second measurement value x2; calculating a difference x1??·x2, where ? is a positive real number, and wherein more than half of the heating duration is implemented during the first measurement duration and less than half of the heating duration is implemented during the second measurement duration.

Abstract: The invention relates to a pixel matrix of a thermal pattern sensor comprising several rows and several columns of pixels, said matrix comprising: an active thermal element formed by a thermosensitive material disposed between a lower layer and an upper layer, the lower layer being constituted by a plurality of first tracks made of electrically conductive material and extending along a first direction, said first tracks forming pixel columns; a heating element, disposed on the active thermal element and forming a serpentine path, said heating element being constituted by a plurality of second tracks (L1, L2, L3, L4, L5, L6) made of electrically conductive material and connecting segments (w1, w2, w3, w4, w5, w6) made of electrically conductive material connected to the ends of the second tracks (L1, L2, L3, L4, L5, L6), said second tracks (L1, L2, L3, L4, L5, L6) extending in a second direction different from the first direction and forming lines of pixels, the second tracks being connected except for the