Design study for an active metal mirror: sub-system of a correction chain for large UVOIR space telescopes

Goy, Matthias; Reinlein, Claudia; Devaney, Nicholas; Goncharov, Alexander V.; Eberhardt, Ramona; Tünnermann, Andreas

doi:10.1117/12.2296193

Cited by 2 publications

(2 citation statements)

References 8 publications

(11 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Europe, both the ESA [216] based on a DM designed by IOF, a Fibonacci distribution across the pupil, or mirror surface, was initially chosen after comparing it to alternative distributions for large UV-to-IR telescope applications [221]. Shown in Fig.…”

Section: Active Correctionmentioning

confidence: 99%

Optics technology for large-aperture space telescopes: from fabrication to final acceptance tests

et al. 2018

View full text Add to dashboard Cite

This review paper addresses topics of fabrication, testing, alignment, and as-built performance of reflective space optics for the next generation of telescopes across the x-ray to far-infrared spectrum. The technology presented in the manuscript represents the most promising methods to enable a next level of astronomical observation capabilities for space-based telescopes as motivated by the science community. While the technology to produce the proposed telescopes does not exist in its final form, the optics industry is making steady and impressive progress toward these goals across all disciplines. We hope that through sharing these developments in context of the science objectives, further connections and improvements are enabled to push the envelope of the technology.

show abstract

Section: Active Correctionmentioning

confidence: 99%

Optics technology for large-aperture space telescopes: from fabrication to final acceptance tests

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Dimensional instabilities lead in general to a non-acceptable degradation of the optical performance of the system which has to be restored by dimensional stable materials and one or more compensation approaches. Thermal instabilities can be compensated using kinematic means [33,34], active/adaptive optics [35][36][37][38][39][40], or compensation optics [41,42]. While all aforementioned compensation approaches take place in a post-manufacturing stage or during the operation of the optical instrument, the subject of this article is compensation during manufacturing, possible when the static loads are known beforehand.…”

Section: Introductionmentioning

confidence: 99%

Theoretical compensation of static deformations of freeform multi mirror substrates

Hartung,

von Lukowicz,

Kinast

2018

Preprint

View full text Add to dashboard Cite

Varying temperatures influence the figure errors of freeform metal mirrors by thermal expansion. Furthermore, different materials lead to thermo-elastic bending effects. The article presents a derivation of a compensation approach for general static loads. Utilizing perturbation theory this approach works for shape compensation of substrates which operate in various temperature environments. Verification is made using a finite element analysis which is further used to produce manufacturable CAD models. The remaining low spatial frequency errors are deterministically correctable using diamond turning or polishing techniques. (120.4880) Optomechanics, (120.6810) Thermal effects, (260.3910) Metal optics, (120.4610) Optical fabrication, (220.1920) Diamond machining

show abstract

Design study for an active metal mirror: sub-system of a correction chain for large UVOIR space telescopes

Cited by 2 publications

References 8 publications

Optics technology for large-aperture space telescopes: from fabrication to final acceptance tests

Optics technology for large-aperture space telescopes: from fabrication to final acceptance tests

Theoretical compensation of static deformations of freeform multi mirror substrates

Contact Info

Product

Resources

About