Abstract: A method may include controlling alignment of the eye in an ophthalmological imaging device that includes an imaging system with a given optical axis. The method may include the formation, on a two-dimensional detection plane, of an image of an element located in a plane of the pupil of the eye. The method further includes the determination of a lateral position of the pupil of the eye with respect to a point of origin of a reference frame of the imaging system, on the basis of the position of the image. The method further includes the analysis of a state of focus of the image. The method further includes the determination of an axial position of the pupil of the eye with respect to the point of origin of the reference frame of the imaging system, on the basis of the analysis of the state of focus.

Abstract: A terrestrial vehicle lighting module which includes an electroluminescent source including at least one electroluminescent element, an electronic device designed to control the electroluminescent element, and an interposer electrically connecting the electroluminescent source and the electronic device.

Abstract: The present description may include a retinal-imaging device, comprising a first module for acquiring tomographic images, with a first illumination and detection sub-module and a first scanning sub-module for scanning in two directions, said first module being configured to acquire a plurality of cross-sectional images of the retina; the device further comprises a second module for acquiring surface images of the retina, with a second illumination and detection sub-module, said second module being configured to acquire surface images of the retina; the device further comprises a control unit configured to determine an angular velocity of the movements of the retina in at least one of the two directions; and to determine, before the start of acquisition of each cross-sectional image of said plurality of cross-sectional images of the retina, a scanning velocity to be applied by said first scanning sub-module in said at least one direction.

Abstract: A Fresnel lens with Fresnel prisms having a first facet, called the main facet, and a second facet, called the draft facet, the draft facet making a draft angle to the optical axis, the draft angle being variable along at least one Fresnel prism, so that the draft angle is higher on one side of the lens than on the other.

Abstract: A luminous device for a motor vehicle, said device including a pixelized light source and an optical system that is arranged to project a pixelized light beam emitted by the pixelized light source, the optical system comprising a first mirror arranged to collect and reflect rays of the pixelized light beam emitted by the pixelized light source, a second mirror arranged to reflect the rays reflected by the first mirror, and a third mirror arranged to receive the rays reflected by the second mirror and to reflect these received rays so as to correct field aberrations. The invention enables improved projection of a pixelized light beam by a luminous motor-vehicle device.

Abstract: An optical wireless communication system for a vehicle comprises a photonic device and control electronics configured to control the photonic device. The photonic device comprises a plurality of photonic components arranged in a two-dimensional matrix array, and the control electronics are configured to control individually or in groups the photonic components of the plurality of photonic components. Each photonic component or each group of photonic components is configured, where appropriate conjointly with an optic, so as to emit and/or receive at least one optical wireless communication signal in a propagation direction that is discriminable relatively to a propagation direction of optical wireless communication signals emitted and/or received, respectively, by at least one other photonic component or by at least one other group of photonic components of the plurality of photonic components.

Abstract: An optical system and an interior lighting device for a motor vehicle including a light source coupled to such an optical system. The optical system includes a first portion of an optical assembly that allows a real image of the light source to the enlarged and projected into proximity to a diffuser of the optical system. The optical assembly also includes a second portion that plays the role of a projecting optic to project out of the optical system a real image of the of the light source formed in proximity to the diffuser. The optical system allows a luminance of the light source of the interior lighting device to be decreased while preserving its pixelization, allowing light sources based on light-emitting diodes and driven with a high-amperage electrical current to be used in motor-vehicle passenger compartments without any risk to the occupants.

Abstract: A luminous device for a motor vehicle, said device including a pixelized light source and an optical system that is arranged to project a pixelized light beam emitted by the pixelized light source, the optical system comprising a first mirror arranged to collect and reflect rays of the pixelized light beam emitted by the pixelized light source, a second mirror arranged to reflect the rays reflected by the first mirror, and a third mirror arranged to receive the rays reflected by the second mirror and to reflect these received rays so as to correct field aberrations. The invention enables improved projection of a pixelized light beam by a luminous motor-vehicle device.

Abstract: A luminous module, in particular for a motor vehicle, including: a monolithic electroluminescent source including electroluminescent elements; a primary optical system equipped with a plurality of convergent optics, at least one convergent optic being associated with each electroluminescent element and forming an image of the electroluminescent element with which it is associated.

Abstract: A lens for shaping light rays, for a luminous lighting and/or signalling module of a motor vehicle, includes an entrance face for the light rays and an opposite exit face. The lens has a flat-lens shape the exit face of which is equipped with prisms forming a Fresnel structure, at least one of these prisms being equipped on an exterior face with diffractive structures, and the entrance face of which is at least partially equipped with microstructures. The lens applies to motor vehicles.

Abstract: An optical system and an interior lighting device for a motor vehicle including a light source coupled to such an optical system. The optical system includes a first portion of an optical assembly that allows a real image of the light source to the enlarged and projected into proximity to a diffuser of the optical system. The optical assembly also includes a second portion that plays the role of a projecting optic to project out of the optical system a real image of the of the light source formed in proximity to the diffuser. The optical system allows a luminance of the light source of the interior lighting device to be decreased while preserving its pixelization, allowing light sources based on light-emitting diodes and driven with a high-amperage electrical current to be used in motor-vehicle passenger compartments without any risk to the occupants.

Abstract: An optical wireless communication system for a vehicle comprises a photonic device and control electronics configured to control the photonic device. The photonic device comprises a plurality of photonic components arranged in a two-dimensional matrix array, and the control electronics are configured to control individually or in groups the photonic components of the plurality of photonic components. Each photonic component or each group of photonic components is configured, where appropriate conjointly with an optic, so as to emit and/or receive at least one optical wireless communication signal in a propagation direction that is discriminable relatively to a propagation direction of optical wireless communication signals emitted and/or received, respectively, by at least one other photonic component or by at least one other group of photonic components of the plurality of photonic components.

Abstract: A lighting module includes at least one light-emitting assembly and one lens for shaping the emitted light rays, the lens having an entrance face for the light rays and an exit face. The lens is a flat lens, the lens and the emitting assembly being configured so that the exit face includes a first section and a second section that differ in the amount of light rays exiting from the lens via one or other of these sections in order that the first section forms an optical section and in order that the second section forms a lighting neutral section. The second section extends from the first section in order to have a largest dimension that is larger than the thickness of the flat lens, the exit face of the lens including features over the entirety of its area.

Abstract: A lighting module for motor vehicles is provided. The lighting module comprises at least one lighting engine configured for forming a light beam with a cut-off line running along one or more axes, and at least one lens designed to project the light beam with a cut-off line. The lens comprises diffractive elements which correct all or part of the chromatism of the lens, and it comprises a central region which is lacking any diffractive elements.

Abstract: A luminous device for a motor vehicle, said device including a pixelized light source and an optical system that is arranged to project a pixelized light beam emitted by the pixelized light source, the optical system comprising a first mirror arranged to collect and reflect rays of the pixelized light beam emitted by the pixelized light source, a second mirror arranged to reflect the rays reflected by the first mirror, and a third mirror arranged to receive the rays reflected by the second mirror and to reflect these received rays so as to correct field aberrations. The invention enables improved projection of a pixelized light beam by a luminous motor-vehicle device.

Abstract: The invention concerns, in one aspect, an actuator for generating a bidirectional force intended for being integrated into a deformable mirror comprising a deformable reflective substrate. Said actuator comprises a stationary body (10); a drive device; a drive rod (20) able to be driven in a translatory movement with respect to the stationary body (10), along an axis of translation (xx?), by means of the drive device; a floating head (30) designed to be attached to the deformable reflective substrate, and mounted in floating manner with respect to the drive rod via first and second elastic means (33, 35). The first and second elastic means (33, 35) are each mounted between the drive rod (20) and the floating head (30) and are designed to apply forces to the floating head, whose projections on the translation axis (xx?) are of opposite directions.

Abstract: A luminous device for a motor vehicle, said device including a pixelized light source and an optical system that is arranged to project a pixelized light beam emitted by the pixelized light source, the optical system comprising a first mirror arranged to collect and reflect rays of the pixelized light beam emitted by the pixelized light source, a second mirror arranged to reflect the rays reflected by the first mirror, and a third mirror arranged to receive the rays reflected by the second mirror and to reflect these received rays so as to correct field aberrations. The invention enables improved projection of a pixelized light beam by a luminous motor-vehicle device.

Abstract: A terrestrial vehicle lighting module which includes an electroluminescent source including at least one electroluminescent element, an electronic device designed to control the electroluminescent element, and an interposer electrically connecting the electroluminescent source and the electronic device.

Abstract: A luminous module, in particular for a motor vehicle, including: a monolithic electroluminescent source including electroluminescent elements; a primary optical system equipped with a plurality of convergent optics, at least one convergent optic being associated with each electroluminescent element and forming an image of the electroluminescent element with which it is associated.

Abstract: A Fresnel lens with Fresnel prisms having a first facet, called the main facet, and a second facet, called the draft facet, the draft facet making a draft angle to the optical axis, the draft angle being variable along at least one Fresnel prism, so that the draft angle is higher on one side of the lens than on the other.