METHOD AND APPARATUS FOR ISOTROPIC STEREOLITHOGRAPHIC 3D PRINTING WITH A VARIABLE SPEED AND POWER HYBRID LIGHT SOURCE

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EP 4 106 978 B8

(12)	CORRECTED EUROPEAN PATENT SPECIFICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 B1)

(48)	Corrigendum issued on:
	20.12.2023 Bulletin 2023/51

(45)	Mention of the grant of the patent:
	01.11.2023 Bulletin 2023/44

(21)	Application number: 21713485.7

(22)	Date of filing: 22.02.2021

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International Patent Classification (IPC):

B29C 64/129^(2017.01)
B29C 64/277^(2017.01)
B33Y 10/00^(2015.01)
B33Y 50/02^(2015.01)

B29C 64/268^(2017.01)
B29C 64/393^(2017.01)
B33Y 30/00^(2015.01)

(52)	Cooperative Patent Classification (CPC):
	B29C 64/129; B29C 64/268; B29C 64/277; B29C 64/393; B33Y 10/00; B33Y 30/00; B33Y 50/02

(86)	International application number:
	PCT/IT2021/050037

(87)	International publication number:
	WO 2021/166005 (26.08.2021 Gazette 2021/34)

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METHOD AND APPARATUS FOR ISOTROPIC STEREOLITHOGRAPHIC 3D PRINTING WITH A VARIABLE SPEED AND POWER HYBRID LIGHT SOURCE

VERFAHREN UND VORRICHTUNG FÜR ISOTROPES STEREOLITHOGRAFISCHES 3D-DRUCKEN MIT EINER HYBRIDLICHTQUELLE MIT VARIABLER GESCHWINDIGKEIT UND LEISTUNG

PROCEDE ET APPAREIL D'IMPRESSION 3D STEREOLITHOGRAPHIQUE ISOTROPE AVEC UNE SOURCE LUMINEUSE HYBRIDE A VITESSE ET PUISSANCE VARIABLES

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

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Priority:

21.02.2020 IT 202000003653

(43)	Date of publication of application:
	28.12.2022 Bulletin 2022/52

(60)	Divisional application:
	23206997.1

(73)	Proprietors:
	Axtra3D Incorporation Dover, DE 19901 (US) Zitelli, Gianni 35122 Padova (PD) (IT)

(72)	Inventor:
	ZITELLI, Gianni 35122 Padova (PD) (IT)

(74)	Representative: Santi, Filippo et al
	Barzanò & Zanardo Roma S.p.A. Via Piemonte 26 00187 Roma 00187 Roma (IT)

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References cited: :

WO-A1-2017/182204
US-A1- 2017 326 786
US-B1- 6 241 934

CH-A2- 713 258
US-A1- 2018 215 093

Busetti Bernhard ET AL: "A hybrid exposure concept for lithography-based additive manufacturing", Additive Manufacturing, 23 March 2018 (2018-03-23), pages 413-421, XP093040785, DOI: 10.1016/j.addma.2018.03.024 Retrieved from the Internet: URL:10.1016/j.addma.2018.03.024 [retrieved on 2023-04-20]

Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).