Abstract: A spectacle lens includes a substrate and an anti-reflection or mirror interference coating covering the substrate on the side of the front face, the interference coating forming a one-dimensional or two-dimensional bar code pattern, the marking being formed by a plurality of point holes on a portion of a thickness of the interference coating, the front face having, away from the point holes, a coefficient of reflection of light having a predetermined nominal value and, in each the point hole, a coefficient of reflection of light having a particular predetermined value that is different from the nominal value.

Abstract: On a first aspect, the spectacle lens is selected as including a transparent support in which is coded an identifier readable by an external reading tool for retrieving the identifier. A distant server is contacted using the identifier and data related to the spectacle lens is so gathered. On a second aspect, data related to the spectacle lens is provided to a predetermined database. Upon receiving a request issued from a requester, the database is accessed and at least some of the data is retrieved, the request including at least part of the identifier, and the retrieved data is sent to the requester.

Abstract: On a first aspect, the spectacle lens is selected as including a transparent support in which is coded an identifier readable by an external reading tool for retrieving the identifier. A distant server is contacted using the identifier and data related to the spectacle lens is so gathered. On a second aspect, data related to the spectacle lens is provided to a predetermined database. Upon receiving a request issued from a requester, the database is accessed and at least some of the data is retrieved, the request including at least part of the identifier, and the retrieved data is sent to the requester.

Abstract: A spectacle lens includes a substrate and an anti-reflection or mirror interference coating covering the substrate on the side of the front face, the interference coating forming a one-dimensional or two-dimensional bar code pattern, the marking being formed by a plurality of point holes on a portion of a thickness of the interference coating, the front face having, away from the point holes, a coefficient of reflection of light having a predetermined nominal value and, in each the point hole, a coefficient of reflection of light having a particular predetermined value that is different from the nominal value.

Abstract: The present disclosure relates to method and system for detecting improvised explosive devices or the like. According to the present disclosure, the method is of the image-correlation type and involves continuously delivering current images representative of said path followed by a vehicle, in replacing some of said current images with pre-recorded earlier images taken at the same point, and in displaying said current images and said replacement earlier images in succession in order to detect said explosive devices.

Abstract: The present disclosure relates to a motor-driven unit for clearing mines from and securing a hazardous route. According to the present method, system and device, a marker apparatus for a secured route is a liquid material for marking on the ground, and comprising dispensing members for providing one axial marking and two side markings on either side of said axial marking, respectively, for said route.

Abstract: The present disclosure relates to mobile equipment for detonating explosives and a motorized unit for securing roads, tracks or similar. According to the present disclosure, the mobile equipment includes a supporting structure with a transverse beam having explosive-activation means mounted thereon, said means comprising at least a mass decoy device, a mechanical decoy device, a thermal electrical decoy device and controllable clearing means.

Abstract: The invention concerns a method for laser ablation of a surface coating from a wall, such as a painted wall finish, for example in a nuclear plant to be decontaminated, and a device for implementing said method. The inventive ablation method includes sweeping shots on the coating of at least one pulsed laser beam with a laser beam quality factor M2 less than 20, and characterized in that it comprises a direct control of said shots by optical deflection, such that the impact zones (I1, I2, I3,) of said shots on said coating are disjointed or substantially adjacent with minimized overlapping.

Abstract: The present disclosure relates to a motor-driven unit for clearing mines from and securing a hazardous route. According to the present method, system and device, a marker apparatus for a secured route is a liquid material for marking on the ground, and comprising dispensing members for providing one axial marking and two side markings on either side of said axial marking, respectively, for said route.

Abstract: The present disclosure relates to mobile equipment for detonating explosives and a motorized unit for securing roads, tracks or similar. According to the present disclosure, the mobile equipment includes a supporting structure with a transverse beam having explosive-activation means mounted thereon, said means comprising at least a mass decoy device, a mechanical decoy device, a thermal electrical decoy device and controllable clearing means.

Abstract: The present disclosure relates to method and system for detecting improvised explosive devices or the like. According to the present disclosure, the method is of the image-correlation type and involves continuously delivering current images representative of said path followed by a vehicle, in replacing some of said current images with pre-recorded earlier images taken at the same point, and in displaying said current images and said replacement earlier images in succession in order to detect said explosive devices.

Abstract: The invention concerns a method for laser ablation of a surface coating from a wall, such as a painted wall finish, for example in a nuclear plant to be decontaminated, and a device for implementing said method. The inventive ablation method includes sweeping shots on the coating of at least one pulsed laser beam with a laser beam quality factor M2 less than 20, and characterized in that it comprises a direct control of said shots by optical deflection, such that the impact zones (I1, I2, I3,) of said shots on said coating are disjointed or substantially adjacent with minimized overlapping.

Abstract: A method for producing periodic structures at the surface of a sol-gel type, hybrid organic-inorganic or organic material, characterised in that it includes the step of directly illuminating the material with a laser beam having a uniform intensity profile at near-normal incidence, while moving said material and said laser beam relative to each other.

Abstract: A device for protecting an optical system against the excess luminosity of an incident light beam. The device forms first and second light beams from an incident light beam. A mirror reflects the first beam which is then guided toward the optical system. The mirror includes a reflecting layer capable of being ablated, at least locally, when it is subjected to high luminous intensity. The second beam initiates the ablation process of the reflecting layer, which is continued and completed by the joint action of the first and second light beams.

Abstract: A device placed by a support in front of the eyes of a user protects them against luminous aggression, in particular by a laser beam. The device includes a light attenuation system to attenuate the intensity of the received beam by a particular attenuation value. A light amplification system is disposed between the light attenuation system and the eyes of the user to amplify the intensity of the light received from the light attenuation system by a particular amplification value, but such that the intensity of the light transmitted towards the eyes does not exceed a prescribed maximal intensity that is not harmful for the eyes. The attenuation and amplification values are substantially equal.