P3.8 Form and Mid-Spatial-Frequency Measurement of Unknown Freeform Surfaces
- SMSI 2020
(did not take place because of Covid-19 virus pandemic)
- SMSI 2020 - Measurement Science
- P3 Advanced Methods and Approaches in Measurement
- T. Binkele, D. Hilbig, M. Essameldin, T. Henning, F. Fleischmann - University of Applied Sciences Bremen, Bremen (Germany)
- 331 - 332
Components with freeform surface give optical designers more degrees of freedom and can reduce the size and weight of optical systems significantly. However, one cannot manufacture it, if one cannot measure it. Thus, measurement systems have to evolve simultaneously. To meet up with these highly demanded requirements, we have developed a new measurement technique for freeform specular surfaces. This measurement technique is able to detect form and mid-spatial-frequency characteristics for known and even unknown freeform surfaces.