Lighting device for generating a line illumination

Abstract

A lighting device for generating a line illumination along a longitudinal direction, having a lens element which, along the longitudinal direction, defines an optical center plane and has a constant cross-sectional profile at least over a section, and having one or more light sources arranged along the longitudinal direction on one side of the lens element. The lens element has a transparent lens body with one or more coupling-in surfaces facing the one or more light sources, through which the light emitted by the one or more light sources enters the lens body, with one or more reflection surfaces at which at least a portion of the coupled-in light is totally internally reflected within the lens body, and with one or more coupling-out surfaces through which the coupled-in light exits the lens body. The lens element and the light source or light sources are arranged such that the light exiting the lens body through the coupling-out surfaces converges.

Dependencies are inferred from the claim text.