| DOI | Trouver le DOI : https://doi.org/10.1117/12.927064 |
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| Auteur | Rechercher : Pariani, G.; Rechercher : Tresoldi, D.; Rechercher : Spanò, P.1; Rechercher : Bianco, A. |
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| Affiliation | - Conseil national de recherches du Canada. Institut Herzberg d'astrophysique du CNRC
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| Format | Texte, Article |
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| Conférence | Modern Technologies in Space- and Ground-Based Telescopes and Instrumentation II, 1 July 2012 through 6 July 2012, Amsterdam |
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| Sujet | CGH; Collimated light; Computer generated holograms; Fabrication errors; Flat mirrors; Optical test; Spherical mirror; Test; Wavefront correction; Alignment; Computer generated holography; Holograms; Interferometers; Mirrors; Optical telescopes; Spheres; Telescopes; Optical testing |
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| Résumé | We describe the optical test of a large flat based on a spherical mirror and a dedicated CGH. The spherical mirror, which can be accurately manufactured and tested in absolute way, allows to obtain a quasi collimated light beam, and the hologram performs the residual wavefront correction. Alignment tools for the spherical mirror and the hologram itself are encoded in the CGH. Sensitivity to fabrication errors and alignment has been evaluated. Tests to verify the effectiveness of our approach are now under execution. © 2012 SPIE. |
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| Date de publication | 2012 |
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| Série | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21269472 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | a0e346bd-0610-4802-af3b-6b399940b0ec |
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| Enregistrement créé | 2013-12-12 |
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| Enregistrement modifié | 2020-04-21 |
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