Method for producing a headlamp lens for a motor-vehicle headlamp
AssigneeDocter Optics SE
InventorJens Fischer
Life of this patent
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Abstract
The invention relates to a method for producing a headlamp lens (2) for a vehicle headlamp, in particular for a motor-vehicle headlamp (1), wherein the headlamp lens (2) comprises a transparent body (3) with an optically effective surface (5), which is in particular substantially planar and can be turned towards a light source (10), and an optically effective surface (4), which is in particular convex and can be turned away from the light source (10), wherein the gradient of a light-dark boundary (25) projected by the headlamp lens (2) or a further headlamp lens is measured, and wherein a light diffusing structure (35) is produced in the transparent body (3) in accordance with the measured gradient.
Claims18
Method for manufacturing a headlight lens for a motor vehicle headlight, comprising
- providing a headlight lens comprising a transparent body having an optically operative surface to face a light source and an optically operative surface to face away from the light source;
- measuring the gradient of a light-dark-borderline generated by the edge of a shield and imaged by at least one of the group consisting of the headlight lens and another headlight lens;
- and
- generating a light scattering structure in the interior within the transparent body depending on the measured gradient.
Method for manufacturing a headlight lens for a motor vehicle headlight;
- the method comprising:
- blank moulding a headlight lens comprising a transparent body having an optically operative surface to face a light source and an optically operative surface to face away from the light source;
- measuring the gradient of a light-dark-borderline generated by the edge of a shield and imaged by the headlight lens;
- and
- by means of a laser generating a light scattering structure in a transparent body of another headlight lens depending on the measured gradient.
Method for manufacturing a headlight lens for a motor vehicle headlight;
- the method comprising:
- blank moulding a headlight lens comprising a transparent body having an optically operative surface to face a light source and an optically operative surface to face away from the light source, such that at least one of the group consisting of (a) the optically operative surface to face away from the light source and (b) the optically operative surface to face the light source has a light scattering surface structure;
- measuring the gradient of a light-dark-borderline generated by the edge of a shield and imaged by at least one of the group consisting of the headlight lens and another headlight lens;
- and
- by means of a laser generating a light scattering structure in the transparent body depending on the measured gradient.
Dependencies are inferred from the claim text.