Method for creating surface microstructures
AssigneeRolic Technologies AG
InventorsMartin URBANSKI, Hans Leonhard PRECHTEL
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Abstract
The present invention relates to methods for designing and creating surface microstructures and includes 3D scanning of existing surface microstructures as well as transferring processed data of the scanned microstructures to a material using a proper writing tool. Surface microstructures created with the methods of the invention have a wide field of applications, such as for security features in optical security elements, alignment layers for liquid crystals, antireflection surfaces, AR/VR applications, optical filters, light coupling, micro-optics, as well as for light management in many different technical areas.
Claims15
A method for creation of a desired surface microstructure, the method comprising the steps
- providing a material with a surface microstructure which has a topography, the surface microstructure being considered as the original surface microstructure;
- providing a 3D surface profilometer;
- acquiring digital data of the original surface microstructure topography with the 3D surface profilometer;
- providing a writing tool;
- processing the digital data of the original surface microstructure topography to obtain structure describing data to be written by the writing tool;
- providing the structure describing data for a desired surface microstructure to the writing tool;
- providing a target material;
- optionally providing a resin;
- creating the desired surface microstructure in or on the target material comprising writing with the writing tool a structure in or on the target material or in a resin using the structure describing data.
Dependencies are inferred from the claim text.