[en] New demands for space and earth observations
drive the need for large apertures of 10 m and higher in
telescopes. This requires new types of alternative lightweight
and deployable primary reflector or lens concepts
with aerial densities of\3 kg/m2. Some syntheses between
optical and especially mechanical and material aspects for
large planar photon sieves and non-imaging telescopes are
discussed. Focus is put on large planar and highly perforated
membranes for photon sieves and shell-membrane
type deployable (parabolic) reflectors, respectively. The
reflecting surface of the latter is composed of specific
C-fiber reinforces silicone (CFRS) material. In addition to
possible shape control, emphasis is also given to reflective
coating of CFRS. Engineering challenges requiring future
activities are identified.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Baier, Horst; Technische Universität München - TUM > Lehrstuhl für Leichtbau > Prof.
Datashvili, Leri; Technische Universität München - TUM > Lehrstuhl für Leichtbau > Prof.
Endler, Stephan; Technische Universität München - TUM > Lehrstuhl für Leichtbau
Roose, Stéphane ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Stockman, Yvan ; Université de Liège - ULiège > CSL (Centre Spatial de Liège)
Language :
English
Title :
Large deployable telescopes—also for lm-wavelengths?
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