Minimising Centering Errors of Injection-Compression Moulded Plastics Lenses

ISSN: 1876-4037 (Online)
ISSN: 1876-4029 (Print)

Volume 9, 2 Issues, 2017

Download PDF Flyer

Micro and Nanosystems

This journal supports open access

Aims & ScopeAbstracted/Indexed in

Submit Abstracts Online Submit Manuscripts Online

Z. Ali
Dean ׀ Graduate Research School
Teesside University
Middlesbrough, TS1 3BA

View Full Editorial Board

Subscribe Purchase Articles Order Reprints

Minimising Centering Errors of Injection-Compression Moulded Plastics Lenses

Micro and Nanosystems, 6(1): 34-41.

Author(s): Christian Hopmann and Paul Walach.

Affiliation: Institute of Plastics Processing (IKV) at RWTH Aachen University, Germany.


The optical performance of plastics lenses depends on several quality criteria. One of the influencing factors is the alignment of the optical surfaces in relation to each other. Centering errors in the alignment of these two surfaces lead to aberrations and a lower optical performance. In spite of very precise moulds and processes, it is still not possible to avoid the occurrence of a lateral offset between the two mould halves. Thus, the offset occurs also in the optical inserts and leads to centering errors in the replicated optical components. A mould design with two integrated piezo-actuators allows the adjustment of the die-sided optical insert and with it the minimisation of the centering error in the micron-range. Therefore, it is possible to influence and reduce the geometrical error, to raise the geometrical accuracy of the lenses and with it the optical performance of plastics lenses without a further machining of the mould.


Aspherical lenses, centering error, injection moulding, lens centering, mould design, optical performance.

Download Free Order Reprints Order Eprints Rights and Permissions

Article Details

Volume: 6
Issue Number: 1
First Page: 34
Last Page: 41
Page Count: 8
DOI: 10.2174/1876402905666131220002452
Global Biotechnology Congress 2017Drug Discovery and Therapy World Congress 2017

Related Journals

Related eBooks

Webmaster Contact: Copyright © 2017 Bentham Science