Abstract: A head-up sight for an aircraft having a curved windshield. The windshield is external to the sight, which can project at infinity a symbology intended to be superimposed onto an external scene. The head-up sight includes a combination of optical elements bent at an angle to a folding mirror, the folding mirror having a curved shape adapted to correct the parallax associated with the optical power of the windshield. The head-up sight is especially applicable to aircraft having a cylindrical or conical windshield.

Abstract: A head-up display including a combiner and a relay optics formed from a combination of optical elements and forming an intermediate image projected to infinity by the combiner of a symbology emitted in a given spectral band by an image source. The combiner forms an off-axis convergent mirror in the spectral band, and an angle of inclination of the off-axis convergent mirror is adjustable for a given type of equipment as a function of a position of the image source and in a given angular range that depends on the type of equipment. The relay optics is modular and includes a first module with at least one optical element fixed regardless of the type of equipment and a second module with at least one optical element for which a position is predefined as a function of an angular position of the combiner.

Abstract: A double-plate combiner for a head-up visor, including two substantially flat plates substantially parallel to each other, and held fixedly together by a holding structure that includes a central baseplate, two side flanks connected to the central baseplate, and two spacers respectively connected to the side flanks and tightly holding the two plates between them. An outer plate is tightly held between free ends of the spacers and an inner plate is tightly held between the free ends, connected to the side flanks, of the spacers. An assembly of the plates, the side flanks, and the spacers has a plane of symmetry substantially orthogonal to the mid-plane of the plates. A first dimension from one spacer to the other of the outer plate is greater than a second dimension from one spacer to the other of the inner plate. The mid-plane of each spacer is not orthogonal to the mid-plane of the plates.

Abstract: The invention relates to the field of head-up sights for an aircraft having a curved windshield.

Abstract: The invention relates to the field of double-plate combiners for a head-up visor.

Abstract: The invention relates to a head-up display adaptable to different equipments of a given type, for example aircraft type, land vehicle type or helmets type. The display is used to project a symbology emitted within a given spectral range by an image source to infinity, and which is intended to be superposed on the outside surroundings observed by a pilot, by means of a convergent combiner and a relay optics.