Abstract: The present invention relates to a head-worn display device carried for displaying an image in accordance with at least two projection reference frames, comprising: an image acquisition module configured to separately acquire an image stream for each of the at least two projection reference frames and/or to extract from a single input stream an image stream for each of the at least two projection reference frames; for each projection reference frame, a spatial processing module configured to adapt the corresponding image stream to a display reference frame; a mixing module configured to generate a resulting stream; a projection module configured to project the resulting stream onto a display surface in accordance with the display reference frame.

Abstract: A stroller chassis includes a frame and a wheel that are connected to each other by a hinge defining a pivoting axis extending perpendicularly to the wheel's axis. The chassis can also include a bearing for guiding the frame and the wheel in free rotation about the axis. The chassis can include two plates, each including an annular body substantially centered with respect to the pivoting axis and arranged externally around the bearing. The two annular bodies are connected rotatably about the pivoting axis to the frame and the wheel and define substantially planar surfaces on the plate surfaces, the planar surfaces being mutually adjoining along a plane that is transverse to the pivoting axis. The plates cooperate with one another through sliding and frictional contact. The Chassis can also include resilient member for pressing the annular bodies against each other to maintain contact between the planar surfaces.

Abstract: An image acquisition system comprises: a single set of focussing optics focussing an incident beam from a scene to be imaged on a first sensor and a second sensor exhibiting identical spectral response curves; followed by separation means separating the irradiance of the beam coming from the focussing optics into first and second predetermined fractions, the separation means orienting the first fraction towards the first sensor and the second fraction towards the second sensor; control means for controlling a first acquisition time of the scene to be imaged by the first sensor to obtain a first image and/or a second acquisition time of the scene to be imaged by the second sensor to obtain a second image; and merging means that merge the first image coming from the first sensor and the second image coming from the second sensor to generate a final image.

Abstract: The invention relates to vision equipment including a translucent optical strip covering all or some of the visual field of the user of the said equipment and a device for projecting images onto the said strip in at least one zone of the visual field of the user, called the image-projection zone. The optical strip includes a plurality of zones covered by a layer of material with a controlled coefficient of light transmission, a zone at least covering the image-projection zone and in that the vision equipment also comprises a means for controlling the coefficient of light transmission capable of receiving status information and of controlling the coefficient of light transmission of each of the zones and independently of one another as a function of the said status information. The invention preferably applies to helmet visor equipment or head-up displays for an aircraft cockpit and to vision equipment in the motor vehicle field.

Abstract: This stroller chassis comprises a frame (10) and at least one wheel (20) resting on the ground, which are connected to each other by a mechanical hinge assembly (40) defining a pivoting axis (Z40-Z40), which extends perpendicularly to the wheel rolling axis on the ground (Y20-Y20) and about which pivoting axis the frame and the wheel pivot with respect to each other, and also comprising at least one bearing (42) for guiding the frame and the wheel in free rotation about said axis with respect to each other.

Abstract: A frame for a child's stroller which includes two rear arms and a single front arm which are joined to one another with the two rear arms spaced on opposite sides of a front to rear median vertical plane (P) of the frame and wherein wheels are pivotally mounted to each of the arms so as to be movable between first deployed positions wherein an axes of rotation of the wheels extend transversely to the plane (P) and a second compact storage position wherein the axes of rotation of the wheels extend parallel with respect to the plane (P), and wherein the wheels connected so as to be moved simultaneously between the two positions.

Abstract: An image acquisition system comprises: a single set of focussing optics focussing an incident beam from a scene to be imaged on a first sensor and a second sensor exhibiting identical spectral response curves; followed by separation means separating the irradiance of the beam coming from the focussing optics into first and second predetermined fractions, the separation means orienting the first fraction towards the first sensor and the second fraction towards the second sensor; control means for controlling a first acquisition time of the scene to be imaged by the first sensor to obtain a first image and/or a second acquisition time of the scene to be imaged by the second sensor to obtain a second image; and merging means that merge the first image coming from the first sensor and the second image coming from the second sensor to generate a final image.

Abstract: A child's carriage including a frame that supports a seat for a child and from which a rear bar extends for pushing the carriage and from which a front rod extends to a fork to which a front wheel is mounted. A swivel is mounted between the front rod and the fork which swivel is covered by a housing for at least one light source and wherein the light source is controlled by a switch on the rear bar.

Abstract: The general field of the invention relates to the binocular helmet-mounted display devices worn by aircraft pilots. In night use, one of the drawbacks of this type of device is that the uprights of the cockpit introduce significant visual masks into the field of the optical sensors. The method according to the invention is a method for eliminating these masks in the images presented to the pilot by graphics processing of the binocular images. It relies on the fact that, given the parallax, the uprights occupy, in two images from the left and right sensors, different positions. The comparison of the two images makes it possible to identify, and then eliminate, these masks, and finally to replace them with parts of images of the outside landscape.

Abstract: The general field of the invention relates to binocular helmet viewing devices worn by aircraft pilots. In night use, one of the drawbacks of this type of device is that the significant distance separating the two sensors introduces hyperstereoscopy on the images restored to the pilot. The method according to the invention is a scheme for removing this hyperstereoscopy in the images presented to the pilot by graphical processing of the binocular images. Comparison of the two images makes it possible to determine the various elements present in the image, to deduce therefrom their distances from the aircraft and then to displace them in the image so as to restore images without hyperstereoscopic effects.

Abstract: The invention relates to vision equipment including a translucent optical strip covering all or some of the visual field of the user of the said equipment and a device for projecting images onto the said strip in at least one zone of the visual field of the user, called the image-projection zone. The optical strip includes a plurality of zones covered by a layer of material with a controlled coefficient of light transmission, a zone at least covering the image-projection zone and in that the vision equipment also comprises a means for controlling the coefficient of light transmission capable of receiving status information and of controlling the coefficient of light transmission of each of the zones and independently of one another as a function of the said status information. The invention preferably applies to helmet visor equipment or head-up displays for an aircraft cockpit and to vision equipment in the motor vehicle field.

Abstract: The invention relates to a so-called three-wheel stroller frame (2) in which the front wheel (20) and the two rear wheels (22D, 22G) are respectively and simultaneously movable relative to a front arm (12) and to two rear arms (14D, 14G) rigidly connected to each other, between an extended service position, in which the rotation axes (Y20-Y20, Y22D-Y22D, Y22G-Y22G) of the wheels extend perpendicularly to a same antero-posterior plane (P) of the frame, and a stowed storage position in which said rotation axes extend in parallel to said plane, the antero-posterior distance (?) between the rear wheels and the front wheel being then smaller than when the wheels are in the expanded position. In order to move the wheels in a quick, simple and easy manner, the stroller frame also includes a specific handle (60) for manually driving a wheel movement means arranged at the front end of the front arm.

Abstract: This children's carriage (1) comprises a frame (10) that supports a seat or the like for the child, equipped with a rear bar for pushing the carriage. The frame is equipped, at the front with a warning light controlled by means of a control switch provided on the push bar in order to limit the risks of collisions between the children's carriage and vehicles traveling in proximity thereto such as automobiles. In order to confer a good-looking aesthetic appearance to children's carriage, particularly at the warning light, the frame is equipped with a front wheel (18), which is supported on the ground and joined to the frame by a fork (22?) that is articulated with regard to the frame, an external housing (26) of the light (24) forming, at least in part, a decorative element in the area of the articulation of the fork with regard to the frame.

Abstract: The field of the invention is that of optical devices allowing the superposition of an electronic image on an image coming from an external scenery. The subject of the invention is an optical device for superposing images, designed to be positioned in front of an optical module comprising at least an objective and a photosensitive surface positioned in the focal plane of said objective. The device comprises an image source, an optical relay and an optical combiner formed of two optical parts assembled via an approximately plane common face including a weakly reflective coating. The combiner has the general form of a plate with plane parallel faces, the common face being inclined at around 45 degrees to said plane faces. It has an entrance face and a opposing face that are approximately perpendicular to the plane faces, the opposing face having approximately the form of a reflecting spherical surface.

Abstract: The field of the invention is that of optical devices allowing the superposition of an electronic image on an image coming from an external scenery. The subject of the invention is an optical device for superposing images, designed to be positioned in front of an optical module comprising at least an objective and a photosensitive surface positioned in the focal plane of said objective. The device comprises an image source, an optical relay and an optical combiner formed of two optical parts assembled via an approximately plane common face including a weakly reflective coating. The combiner has the general form of a plate with plane parallel faces, the common face being inclined at around 45 degrees to said plane faces. It has an entrance face and a opposing face that are approximately perpendicular to the plane faces, the opposing face having approximately the form of a reflecting spherical surface.

Abstract: The invention relates to a pilot's helmet with a tinted visor that can be locked in raised position during nighttime use by a device using spring-loaded balls, and that can be lowered manually, or automatically when the pilot ejects thanks to a spring-loaded system tending to close the visor.

Abstract: A compact optical device used to superimpose an intensified infrared image onto a visible image to allow night vision. It can especially be used to make goggles to be worn under the visor of an aircraft or helicopter pilot's helmet. The device includes a combiner located in front of the pilot's eye for directly transmitting visible light to the pilot and an objective for receiving infrared light which is placed above the combiner. An optical system guides the light received by the objective towards the combiner to be forwarded to the pilot's eye. The light is guided in a single plane substantially perpendicular to the plane containing the light received by the objective. The optical system includes a light intensifier, a transport objective, an even number of mirrors to fold the optical circuit and an eye piece.

Abstract: A device for controlling the position of a symbolic image generated on a combiner by a head-up display system. Two tests are performed alternately: a general position test, using a luminous spot generated on the image; and a combiner position test, using a light source, fixed to the structure of the image generator and using the same collimating unit as this generator. The signals generated by each of these light sources are received by the same position sensor whose output signals are processed by the same circuit that varies the image's X and Y positioning voltages. The circuit incorporates an amplifier equipped with a gain switch that allows the amplifying gain to be set according to which test is being performed at any given time.