| Autor: |
F. Wolfs, E. Gillain, M. Pfaffe, C. Bastin, J. M. Schumacher, C. Flebus, A. Jago, Jm. Boitrel, F. Mallet, P. Gloesener, M. Bougoin, F. Lemagne, A. Bernat, D. Logut, E. Renotte, M. Pinel, F. Michel, F. Bernard, A. Mazzoli, G. Laffitte |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
International Conference on Space Optics — ICSO 2018. |
| DOI: |
10.1117/12.2536223 |
| Popis: |
METimage is an advanced multispectral radiometer for weather and climate forecasting developed by Airbus Defence & Space under the auspices of the German Space Administration (DLR) for the EUMETSAT Polar System –Second Generation (EPS-SG). The instrument is equipped with a continuously rotating scan mirror with a 1.7s period followed by a static telescope. The scan mirror permits an extended Earth view of 108° per revolution and regular views to on-board calibration sources. A derotator assembly, which is half-speed synchronised with the scanner, is inserted in the optical beam after the telescope to compensate the image rotation in the focal plane. The derotator optical arrangement is a fivemirror concept that minimises the polarisation sensitivity. The derotator design is constrained by optical performance, mass and compactness, which led to the selection of a full silicon carbide (SiC) concept. This paper describes the preliminary design and verification approach of the derotator optics. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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