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Korkiakoski, V. (author), Doelman, N.J. (author), Codona, J. (author), Kenworthy, M. (author), Otten, G. (author), Keller, C.U. (author)We present a method to calibrate a high-resolution wavefront (WF)-correcting device with a single, static camera, located in the focal-plane; no moving of any component is needed. The method is based on a localized diversity and differential optical transfer functions to compute both the phase and amplitude in the pupil plane located upstream of...article 2013
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Cantarini, J. (author), Hildebrandt, D. (author), König, R. (author), Klinkhamer, J.F.F. (author), Moddemeijer, K. (author), Vliegenthart, W.A. (author), Wolf, R. (author), TNO Industrie en Techniek (author)For the Wendelstein 7-X stellarator, which will allow quasicontinuous operation (τ30 min) with 10 MW of electron cyclotron radiation heating power, a conceptual design study for an IR/visible viewing system (IVVS) has been elaborated. Ten such systems, as part of the machine protection system, will be required for real time monitoring of all ten...article 2008
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Technisch Physische Dienst TNO - TH (author), Klinkhamer, J.F.F. (author)Modem mirror optics often consists of a limited number of elements, in which many aberrations may be attacked by adjusting only one element in five degrees of freedom, i.e. all degrees of freedom except the rotation around the optical axis. When the adjustment has to be reusable and mass and stiffness are of importance, a hexapod mechanism is ...conference paper 2003