In various embodiments, a lighting device is provided. The lighting device includes an optical unit having at least one optical element, which optical unit is fastened to the lighting device by means of at least one fastening region; wherein the optical unit is fastened with a force fit in at least one direction; wherein the at least one fastening region is formed as a spring element; and wherein the optical unit can be moved through the at least one fastening region in the direction of the force-fit fastening.