Slat device for a motor vehicle, the slat device comprising at least one frame device and at least one lighting unit, a plurality of slats being fastened to the frame device, the slats being spaced apart from one another at first distances, preferably the first distances between two adjacent slats each being of equal size, the frame device and the plurality of slats lying in one, in particular the same, plane, wherein the illumination unit comprises at least one light source and one optical element, wherein the light source is arranged to generate light and to emit light in a light propagation direction, wherein the optical element is arranged downstream of the light source in the light propagation direction the optical element being designed in such a way that the light from the light source passes through the optical element and propagates in an illumination direction after passing through, the optical elements being designed as lenses, wherein the illumination unit is arranged on the frame device in such a way that the light which emerges from the optical element propagates between two adjacent lamellae, the illumination unit having a plurality of light sources and a plurality of optical elements wherein the frame device having a frame upper side and a frame lower side opposite the frame upper side, the lamellae extending from the frame upper side to the frame lower side, the frame device limiting the spatial extent of the lamellae, wherein the plurality of light sources are arranged on a, preferably planar, surface of a light source holder at, in particular, uniform second distances from one another, wherein the plurality of optical elements are arranged on an optical element holder which has an upper side and a lower side, wherein the plurality of optical elements are arranged on the optical element holder at, preferably uniform, third distances from each other, wherein the optical axes of the optical elements are oriented orthogonally to the upper side and lower side of the optical element holder, respectively, and wherein the light source holder is arranged relative to the optical element holder in such a way that the surface of the light source holder to which the plurality of light sources are attached faces the upper side of the optical element holder in such a way that each light source has one, preferably exactly one, optical element opposite it, thereby forming a light source-optical element pair, each light source emitting light onto the optical element opposite the light source, each optical element being arranged to emit the light of the light source opposite it in an illumination direction, the illumination directions of the individual light source-optical element pairs being essentially parallel to one another. a plurality of slats being fastened to the frame device, the slats being spaced apart from one another at first distances, preferably the first distances between two adjacent slats each being of equal size, the frame device and the plurality of slats lying in one, in particular the same, plane, wherein the illumination unit comprises at least one light source and one optical element, wherein the light source is arranged to generate light and to emit light in a light propagation direction, wherein the optical element is arranged downstream of the light source in the light propagation direction the optical element being designed in such a way that the light from the light source passes through the optical element and propagates in an illumination direction after passing through, the optical elements being designed as lenses, wherein the illumination unit is arranged on the frame device in such a way that the light which emerges from the optical element propagates between two adjacent lamellae, the illumination unit having a plurality of light sources and a plurality of optical elements wherein the frame device having a frame upper side and a frame lower side opposite the frame upper side, the lamellae extending from the frame upper side to the frame lower side, the frame device limiting the spatial extent of the lamellae, wherein the plurality of light sources are arranged on a, preferably planar, surface of a light source holder at, in particular, uniform second distances from one another, wherein the plurality of optical elements are arranged on an optical element holder which has an upper side and a lower side, wherein the plurality of optical elements are arranged on the optical element holder at, preferably uniform, third distances from each other, wherein the optical axes of the optical elements are oriented orthogonally to the upper side and lower side of the optical element holder, respectively, and wherein the light source holder is arranged relative to the optical element holder in such a way that the surface of the light source holder to which the plurality of light sources are attached faces the upper side of the optical element holder in such a way that each light source has one, preferably exactly one, optical element opposite it, thereby forming a light source-optical element pair, each light source emitting light onto the optical element opposite the light source, each optical element being arranged to emit the light of the light source opposite it in an illumination direction, the illumination directions of the individual light source-optical element pairs being essentially parallel to one another.