Abstract: An electrical machine is disclosed that has a stator and a rotor. The rotor, spaced apart radially from the stator, is configured to rotate about a longitudinal axis. An air gap extends between the rotor and the stator. The rotor has a rotor shaft having two end faces and a surface. A plurality of permanent magnets is connected to the rotor shaft and adjoin the air gap. The rotor shaft has, spaced apart radially from the air gap, a plurality of cooling channels that extend in the longitudinal direction between the end faces of the rotor shaft.

Abstract: A cylindrical actuator sub-assembly (100, 200, 300) comprising: an element (14, 24, 34) movable along a longitudinal axis (A), at least one actuating member and a guidance mechanism suitable for guiding the element, wherein aid guidance mechanism includes a first ring-shaped lever (11, 21, 31) and a second ring-shaped lever (11?, 21?, 31?) that are parallel to each other, at least two straight axial flexures (12, 12?; 22, 22?; 32, 32?), at least two flexures (16, 16?; 27, 27?; 36, 36?) and at least two bases (13, 13?; 23, 23?; 33, 33?), a first base carrying the movable element.

Abstract: A cylindrical actuator sub-assembly (100, 200, 300) comprising: an element (14, 24, 34) movable along a longitudinal axis (A), at least one actuating member and a guidance mechanism suitable for guiding the element, wherein aid guidance mechanism includes a first ring-shaped lever (11, 21, 31) and a second ring-shaped lever (11?, 21?, 31?) that are parallel to each other, at least two straight axial flexures (12, 12?; 22, 22?; 32, 32?), at least two flexures (16, 16?; 27, 27?; 36, 36?) and at least two bases (13, 13?; 23, 23?; 33, 33?), a first base carrying the movable element.

Abstract: At least one imaging unit for emitting an image in the form of a beam path and at least one mirror module for deflecting the beam path which is emitted by the imaging unit are included in a head-up display for a motor vehicle. The mirror module includes at least two different mirrors which are movable into the beam path, and a respective curvature of the mirrors is matched to respective vehicle-specific windshield variants. The head-up display may be arranged in the motor vehicle by selecting one of the mirrors whose curvature is matched to the windshield variant, embodied in a vehicle-specific manner, and arranging the selected mirror in a region through which the beam path extends in the case of an activated imaging unit.

Abstract: At least one imaging unit for emitting an image in the form of a beam path and at least one mirror module for deflecting the beam path which is emitted by the imaging unit are included in a head-up display for a motor vehicle. The mirror module includes at least two different mirrors which are movable into the beam path, and a respective curvature of the mirrors is matched to respective vehicle-specific windshield variants. The head-up display may be arranged in the motor vehicle by selecting one of the mirrors whose curvature is matched to the windshield variant, embodied in a vehicle-specific manner, and arranging the selected mirror in a region through which the beam path extends in the case of an activated imaging unit.