Motor vehicle e.g. car, headlight lens producing method, involves producing light diffusing structure in transparent body of headlight lens in accordance with measured gradient of light-dark boundary produced by headlight lens

摘要

The method involves measuring a gradient of a light-dark boundary (25) produced by a headlight lens (2) for a motor vehicle headlight (1). A light diffusing structure is produced in a transparent body (3) in accordance with the measured gradient. The transparent body of the headlight lens is provided with an optically effective surface (5), which is planar and turned towards a light source (10), and another optically effective surface (4), which is convex and turned away from the light source. The light diffusing structure is produced by lasers, and includes a number of point-shaped defects. An independent claim is also included for a device for producing a lens for a headlight of a motor vehicle.