Alternating Curved Cone-Shaped Optical Elements for Headlight Distortion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional vehicle headlights with a scattering optic part and surface structuring experience undesirable distortion of light distribution.
Innovation Solution
A scattering optic part with a surface structuring comprising alternately arranged, curved cone-shaped optical elements is integrated in front of the lens arrangement, ensuring that light is scattered without distortion, maintaining a straight light/dark boundary in the light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a scattering optic part with surface structuring is arranged in front of the lens arrangement, then light scattering function is improved, but light distribution distortion occurs
Solution Approach 1:
The patent applies asymmetry by using alternately curved cone-shaped optical elements instead of symmetric cylindrical elements. The alternating curvature (convex-concave pattern) creates asymmetric light scattering paths that compensate for each other, preventing the arc-shaped distortion of the light/dark boundary while maintaining effective light scattering.
Solution Approach 2:
The patent uses curved cone-shaped optical elements with alternating curvature directions. This curvature design replaces traditional cylindrical (straight) elements, creating a more complex three-dimensional light scattering pattern that maintains the straight light/dark boundary by distributing light more uniformly in all directions.
2Ease of manufacture
If cylindrical optical elements are used in the scattering optic part, then manufacturing is simplified, but arc-shaped flattening of light/dark boundary occurs
Solution Approach 1:
The patent replaces symmetric cylindrical elements with asymmetric alternately curved cone-shaped elements. This asymmetric design prevents the arc-shaped flattening effect by creating compensating scattering patterns that maintain a straight light/dark boundary, while still being manufacturable through molding techniques.
Solution Approach 2:
The patent introduces curvature variations in the cone-shaped optical elements, alternating between convex and concave curvatures. This curved design creates more complex light scattering behavior compared to cylindrical elements, achieving a straight light/dark boundary through the combined effect of alternating curved surfaces.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents light distribution distortion, ensuring a legally permissible and distortion-free light distribution, even when a scattering optic part with surface structuring is used.
Implementation Method 1
a scattering optic part for scattering the light emitted by the lens arrangement is assigned to the lens arrangement
Data Source
AI summary
A headlight for a vehicle with a light source and a lens arrangement associated with it, containing a light entry surface on a side facing the light source and a light emission surface on a side facing away from the light source, wherein light emitted by the light source is mapped by means of the lens arrangement to a predetermined light distribution. A scattering optic part is assigned to the lens arrangement for scattering the light emitted by the lens arrangement. The surface structuring of the scattering optic part has a plurality of cone-shaped optical elements arranged in a row, which are arranged alternately curved in the row direction, wherein a second cone-shaped optical element adjacent to a first cone-shaped optical element is formed by twisting the first cone-shaped optical element on two perpendicular axes.