US 11,890,805 B2
Three-dimensional printing apparatus and three-dimensional printing method
Chao-Shun Chen, Hsinchu (TW); and Keng-Han Chuang, Hsinchu (TW)
Assigned to YOUNG OPTICS INC., Hsinchu (TW)
Filed by Young Optics Inc., Hsinchu (TW)
Filed on Mar. 13, 2020, as Appl. No. 16/817,931.
Application 16/817,931 is a continuation of application No. 15/298,428, filed on Oct. 20, 2016, granted, now 10,625,497.
Claims priority of application No. 104134726 (TW), filed on Oct. 22, 2015.
Prior Publication US 2020/0215812 A1, Jul. 9, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. B29C 64/129 (2017.01); B33Y 30/00 (2015.01); B33Y 10/00 (2015.01); B29C 64/135 (2017.01); B29C 64/124 (2017.01); B29C 64/268 (2017.01); B29C 64/277 (2017.01); B29C 64/20 (2017.01)
CPC B29C 64/129 (2017.08) [B29C 64/124 (2017.08); B29C 64/135 (2017.08); B29C 64/20 (2017.08); B29C 64/268 (2017.08); B29C 64/277 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 20 Claims
OG exemplary drawing
 
1. A three-dimensional printing apparatus, comprising:
a container, configured to contain a liquid photosensitive material; and
a projecting structure, configured to provide a variety of molding beams including a first molding beam and a second molding beam for irradiating the liquid photosensitive material to form a plurality of solidified layers;
wherein the projecting structure comprises a light combiner module, disposed on transmission paths of the first molding beam and the second molding beam;
wherein the first molding beam and the second molding beam have mutually different wavelengths, and the wavelengths of the first molding beam and the second molding beam are between 355 nm to 415 nm;
wherein a light valve is disposed downstream of the light combiner module.