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1. (WO2019043529) METHODS AND APPARATUS FOR THREE-DIMENSIONAL FABRICATION BY TOMOGRAPHIC BACK PROJECTIONS
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Pub. No.: WO/2019/043529 International Application No.: PCT/IB2018/056389
Publication Date: 07.03.2019 International Filing Date: 23.08.2018
IPC:
B33Y 50/00 (2015.01) ,B29C 64/386 (2017.01) ,B29C 64/10 (2017.01) ,H04N 1/40 (2006.01)
[IPC code unknown for B33Y 50][IPC code unknown for B29C 64/386][IPC code unknown for B29C 64/10]
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
40
Picture signal circuits
Applicants:
ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL) [CH/CH]; EPFL-TTO EPFL Innovation Park J 1015 Lausanne, CH
Inventors:
LOTERIE, Damien; CH
DELROT, Paul; CH
MOSER, Christophe; CH
Agent:
MÜLLER, Christoph; CH
Priority Data:
PCT/IB2017/05520930.08.2017IB
Title (EN) METHODS AND APPARATUS FOR THREE-DIMENSIONAL FABRICATION BY TOMOGRAPHIC BACK PROJECTIONS
(FR) PROCÉDÉS ET APPAREIL DE FABRICATION EN TROIS DIMENSIONS PAR DES RÉTROPROJECTIONS TOMOGRAPHIQUES
Abstract:
(EN) A method for producing a three-dimensional object comprising computing a sequence of back-projections describing the three-dimensional object to be formed from different orientation angles of said object, defining a sequence of patterns of light using said back-projections, and irradiating with each of said patterns of light at the respective corresponding orientation angle and according to the defined sequence a photoresponsive material that is capable of alteration of its material phase upon irradiation by light, thereby creating a three-dimensional distribution of alterations within the photoresponsive medium which physically reproduces said three- dimensional object, thereby creating the three-dimensional object.
(FR) La présente invention concerne un procédé de production d'un objet tridimensionnel comprenant les étapes consistant à calculer une séquence de rétroprojections décrivant l'objet tridimensionnel à former à partir de différents angles d'orientation dudit objet, définir une séquence de motifs de lumière à l'aide desdites rétroprojections, et irradier avec chacun desdits motifs de lumière à l'angle d'orientation correspondant respectif et selon la séquence définie d'un matériau photosensible qui est apte à modifier sa phase de matériau lors de l'irradiation par la lumière, ce qui permet de créer une répartition tridimensionnelle d'altérations à l'intérieur du support photosensible qui reproduit physiquement ledit objet tridimensionnel, ce qui permet de créer l'objet tridimensionnel.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)