PhotoEnco

Today’s optical encoders are based on the transmitted light method according to the light barrier principle. This involves the use of code disks that are produced in large series by lithography. Code disks have transparent and non-transparent areas. The light from the light source is projected onto the detector through the transparent areas of the code disk and the mask. The typical width of the individual structures of the code disk is between 0.2 mm and 0.015 mm, depending on the resolution and size of the encoder.

The aim of the joint project is the research and prototype demonstration of an industrially suitable process for direct-writing laser direct structuring with the aid of suitable materials, optimized laser processes and adapted optical measurement technology with a target resolution of less than 10 µm.

ACSYS Lasertechnik GmbH is manufacturing a demonstrator system for the project and has expertise in layer ablation using ultrashort laser pulses, laser control and process management.