Method for creating a 3D model of an optical freedom surface

A deterministic method for creating 3D models of optical freeform surfaces addresses the complexity of existing methods by deriving geometry from physical ray-mapping, enabling quick, resource-efficient production of reproducible and robust optical designs.

WO2026115000A1PCT designated stage Publication Date: 2026-06-04LUMINOUS ALGORITHMS GMBH
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Patent Information

Application Number
PCT/EP2025/084455
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-11-29
Filing Date
2025-11-27
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

The mathematical characterization and creation of a 3D model for optical freeform surfaces is complex and resource-intensive due to numerous degrees of freedom, often requiring iterative optimization methods that are time-consuming and dependent on initial parameters, leading to suboptimal results.

Method used

A deterministic method that directly computes a geometrically well-defined optical freeform surface by deriving the geometry from physical ray-mapping or light-field propagation, eliminating the need for iterative processes and ensuring physical correctness and manufacturability.

Benefits of technology

This approach allows for rapid, efficient creation of a 3D model with reduced computational resources, ensuring reproducible and robust optical performance without the need for user interaction or extensive iteration, thus reducing production times and enhancing manufacturability.

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Abstract

The invention relates to a method for creating a 3D model of an optical freeform surface, in particular a reflector of a headlight, wherein the method (1, 10) comprises the following steps: - providing target specifications regarding light distribution (2.11); - detecting technical conditions (3,12) affecting the optical freeform surface; - automatically creating the 3D model based on the provided target specifications and the detected technical conditions (4,13); and - providing information about the created 3D model (5,14).
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Citation Information

Patent Citations

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    DE102013215897A1

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    CN114442317A

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    CN116381930A

  • Method for constructing an optical element for a motor vehicle headlight

    EP3671304A1

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    TW201923633A