Production
of Polymer Lenses Using Injection Moulding
Walter Michaeli, Jan Forster
Institute of Plastics
Processing (IKV) at RWTH Aachen University
Pontstraße 49, 52062
The precision of
injection moulded high-class plastics products is the crucial factor.
Especially the injection moulding of thick-walled polymer optics requires
sophisticated measuring techniques for the control of the quality achieved and
the analysis of the replication process. In particular the measuring range and
the accuracy of the measuring instruments in combination with the sometimes
large deviations between polymer geometry and ideal contour must be taken into
account. The future target is the production of highly accurate polymer optics
with an excellent process control. The paper discusses the use of an optical
contact-free measuring technique for the analysis of injection moulded optical
lenses.