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Chun, M.R. (author), Ryan, A. (author), Zhang, R. (author), Kuiper, S. (author), Ackaert, G. (author), Baranec, C. (author), Baeten, M.J.J. (author), Bos, A. (author), Bowens-Rubin, R. (author), Dekker, A. (author), Dungee, R. (author), Gupta, T. (author), Hinz, P. (author), Jonker, W.A. (author), Kamphues, F.G. (author), Lai, O. (author), Lu, J. (author), Maniscalco, M.P. (author), Monna, B. (author), Nair, M. (author), Nijenhuis, J.R. (author), Priem, H. (author), Vogel, P.A. (author)We report on progress at the University of Hawaii on the integration and testing setups for the adaptive secondary mirror (ASM) for the University of Hawaii 2.2-meter telescope on Maunakea, Hawaii. We report on the development of the handling fixtures and alignment tools we will use along with progress on the optical metrology tools we will use...conference paper 2022
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de Lange, T.J. (author), de Man, H. (author), de Bruijn, D. (author), Hazelebach, R.L.M. (author), Rijnbeek, R.A. (author), Baeten, M.J.J. (author), Silvestri, F. (author), Human, J.D. (author), Witvoet, G. (author), Crowcombe, W.E. (author)LEOCAT is an optical head for intersatellite communication currently under development by TNO (ESA ARTES contract). The objective of LEOCAT is to develop a low recurring cost low SWAP (Size Weight and Power) optical head for the optical satellite communication constellation market. The aim of LEOCAT is to achieve a data-rate of 10Gbit/s over a...other 2019
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Kuiper, S. (author), Doelman, N.J. (author), Overtoom, T. (author), Nieuwkoop, E. (author), Russchenberg, T. (author), van Riel, M.J.C.M. (author), Wildschut, J.A. (author), Baeten, M.J.J. (author), Spruit, W.E.T. (author), Brinkers, S. (author), Human, J.D. (author)To increase the collecting power and to improve the angular imaging resolution, space telescopes are evolving towards larger primary mirrors. The aerial density of the telescope mirrors needs to be kept low, however, to be compatible with the launch requirements. A light-weight (primary) mirror will introduce additional optical aberrations to...conference paper 2017
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Kuiper, S. (author), Doelman, N.J. (author), Nieuwkoop, E. (author), Overtoom, A.J. (author), Russchenberg, T. (author), van Riel, M.C.J.M. (author), Wildschut, J.A. (author), Baeten, M.J.J. (author), Human, J.D. (author), Spruit, W.E.T. (author), Brinkers, S. (author), Maniscalco, M.P. (author)Over the last decade TNO has developed a deformable mirror concept using electromagnetic actuators with the main advantages of having very low non-linearity and hysteresis, low power consumption, and high inherent reliability of the actuators. TNO recently started a program to redesign the electromagnetic actuator to improve the actuator...conference paper 2016