Flat convex aspherical optical lens for e.g. vehicle headlamp, has light entry surface and light emitting surface, where one of surfaces is divided into stepped flat segments that are designed as free formed surfaces and arranged in column

摘要

The lens (1) has a light entry surface (10) and a light emitting surface (11), where one of the surfaces is divided into stepped flat segments (110) that are designed as free formed surfaces. The segments are arranged in a column or in a line, and the edge of the segments exhibit a polygonal form. A portion of the light emitting surface and/or the light entry surface distributed in the segments has an upper surface structure.