| Téléchargement | - Voir la version finale : Correcting ray distortion in tomographic additive manufacturing (PDF, 6.3 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1364/OE.419795 |
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| Auteur | Rechercher : Orth, Antony1Identifiant ORCID : https://orcid.org/0000-0001-5937-6254; Rechercher : Sampson, Kathleen L.2Identifiant ORCID : https://orcid.org/0000-0003-1443-411X; Rechercher : Ting, Kayley1; Rechercher : Boisvert, Jonathan1; Rechercher : Paquet, Chantal2 |
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| Affiliation | - Conseil national de recherches du Canada. Technologies numériques
- Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Format | Texte, Article |
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| Résumé | Light-based additive manufacturing techniques enable a rapid transition from object design to production. In these approaches, a 3D object is typically built by successive polymerization of 2D layers in a photocurable resin. A recently demonstrated technique, however, uses tomographic dose patterning to establish a 3D light dose distribution within a cylindrical glass vial of photoresin. Lensing distortion from the cylindrical vial is currently mitigated by either an index matching bath around the print volume or a cylindrical lens. In this work, we show that these hardware approaches to distortion correction are unnecessary. Instead, we demonstrate how the lensing effect can be computationally corrected by resampling the parallel-beam radon transform into an aberrated geometry. We also demonstrate a more general application of our computational approach by correcting for non-telecentricity inherent in most optical projection systems. We expect that our results will underpin a more simple and flexible class of tomographic 3D printers where deviations from the assumed parallel-beam projection geometry are rectified computationally. |
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| Date de publication | 2021-03-24 |
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| Maison d’édition | Optical Society of America |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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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 | 4acb9f6b-b1c3-4169-85c5-851841bf8886 |
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| Enregistrement créé | 2021-03-30 |
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| Enregistrement modifié | 2021-03-30 |
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