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Metrology data-based simulation of freeform optics

Sieber, I. ORCID iD icon 1; Yi, A. Y.; Gengenbach, U. 1
1 Institut für Automation und angewandte Informatik (IAI), Karlsruher Institut für Technologie (KIT)

Abstract:

This paper describes the approach to use measurement data to enhance the simulation model for designing freeform optics. Design for manufacturing of freeform optics is still challenging, since the classical tolerancing procedures cannot be applied. In the case of spherical optics manufacturing, tolerances are more or less isotropic, and this relationship is lost in case of freeform surfaces. Hence, an accurate performance prediction of the manufactured optics cannot be made. To make the modeling approach as accurate as possible, integration of measured surface data of fabricated freeform optics in the modeling environment is proposed. This approach enables performance prediction of the real manufactured freeform surfaces as well as optimization of the manufacturing process. In our case study this approach is used on the design of an Alvarez-optics manufactured using a microinjection molding (µIM) process. The parameters of the IM process are optimized on the basis of simulation analysis resulting in optics, with a performance very close to the nominal design. Measurement of the freeform surfaces is conducted using a tactile surface measurement tool.


Verlagsausgabe §
DOI: 10.5445/IR/1000088424
Veröffentlicht am 17.12.2018
Originalveröffentlichung
DOI: 10.3390/app8122338
Scopus
Zitationen: 6
Web of Science
Zitationen: 6
Dimensions
Zitationen: 6
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Automation und angewandte Informatik (IAI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2018
Sprache Englisch
Identifikator ISSN: 2076-3417
urn:nbn:de:swb:90-884244
KITopen-ID: 1000088424
HGF-Programm 43.22.03 (POF III, LK 01) Printed Materials and Systems
Erschienen in Applied Sciences
Verlag MDPI
Band 8
Heft 12
Seiten Art. Nr.: 2338
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Schlagwörter systems design, simulation, form measurements, 3D measurements
Nachgewiesen in Dimensions
Web of Science
Scopus
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