Optical system having an improved aberration behavior, and LIDAR device including a system of this type

A LIDAR device for scanning a scanning area using beams, comprising:

• a transmission unit configured to generate the beams and to deflect the beams along the scanning area;
• and
• a receiving unit, which includes at least one detector, configured to receive reflected beams;
• wherein the transmission unit and/or the receiving unit includes an optical system including:
• a lens array including a multitude of convex microlenses on a single shared substrate, each of the convex microlenses having a flat surface and a convex surface, wherein an entirety of the lens array is shaped in a concave shape and the multitude of convex microlenses includes at least six convex microlenses;
• a lens system configured to deflect beams out of the scanning area or into the scanning area, the lens system being situated in a beam path of the beams between the scanning area and the lens array;
• and
• at least one wedge array situated upstream from the lens array in a radiation direction, the wedge array including a multitude of wedge elements each having a triangular cross section with an inclined surface and a planar surface, a number of wedge elements equaling a number of convex microlenses, each respective wedge element of the wedge elements being configured to receive radiation and to deflect the radiation onto the flat surface of a different respective convex microlens of the convex microlenses;
• wherein the lens array has an optical axis, wherein each convex microlens of the lens array has a separate rotation angle, and wherein the rotation angles of the convex microlenses of the lens array that are at a greater distance from the optical axis are greater than the rotation angles of the convex microlenses of the lens array that are at a smaller distance from the optical axis, wherein the rotation angle of each convex microlens is a rotation angle with respect to its respective wedge element.