Searched for: subject%3A%22Measurement%255C%2Bmachines%22
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document
Bos, A. (author), Henselmans, R. (author), Rosielle, P.C.J.N. (author), Steinbuch, M. (author)
To enable important scientific discoveries, ESO has defined a new ground-based telescope: the European Extremely Large Telescope (E-ELT). The baseline design features a telescope with a 39-m-class primary mirror (M1), making it the largest and most powerful telescope in the world. The M1 consists of 798 hexagonal segments, each about 1.4 m wide,...
article 2015
document
Bergmans, R.H. (author), Nieuwenkamp, H.J. (author), Kok, G.J.P. (author), Blobel, G. (author), Nouira, H. (author), K√ľng, A. (author), Baas, M. (author), te Voert, M.J.A. (author), Baer, G. (author), Stuerwald, S. (author)
A comparison of topography measurements of aspherical surfaces was carried out by European metrology institutes, other research institutes and a company as part of an European metrology research project. In this paper the results of this comparison are presented. Two artefacts were circulated, a small polymer coated aspherical lens with a clear...
article 2015
document
Bos, A. (author), Henselmans, R. (author), Rosielle, P.C.J.N. (author), Steinbuch, M. (author), te Voert, M.J.A. (author)
The baseline design of the European Extremely Large Telescope features a telescope with a 39-meter-class primary mirror (M1), consisting of 798 hexagonal segments. A measurement machine design is presented based on a non-contact single-point scanning technique, capable of measuring the form error of each segment with nanometer uncertainty, fast,...
conference paper 2014
document
Henselmans, R. (author), Cacace, L.A. (author), Kramer, G.F.Y. (author), Rosielle, P.C.J.N. (author), Steinbuch, M. (author)
Aspherical and freeform optics are applied to reduce geometrical aberrations as well as to reduce the required number of components, the size and the weight of the system. To measure these optical components with nanometre level uncertainty is a challenge. The NANOMEFOS machine was developed to provide suitable metrology (high accuracy,...
article 2011
Searched for: subject%3A%22Measurement%255C%2Bmachines%22
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