The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2019
Filed:
Jan. 08, 2018
Applicant:
Nexa3d Inc., Ventura, CA (US);
Inventors:
Assignee:
Nexa3D Inc., Ventura, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/124 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29C 64/135 (2017.01); B29C 64/40 (2017.01); B29C 64/277 (2017.01); G02F 1/1335 (2006.01); B29C 64/223 (2017.01); B29C 64/255 (2017.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
B29C 64/124 (2017.08); B29C 64/135 (2017.08); B29C 64/223 (2017.08); B29C 64/255 (2017.08); B29C 64/277 (2017.08); B29C 64/40 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); G02F 1/133514 (2013.01); G02F 1/133603 (2013.01); G02F 1/133606 (2013.01); G02F 1/133617 (2013.01); B29K 2105/0058 (2013.01); G02F 2001/133607 (2013.01);
Abstract
Three-dimensional objects are formed by photo-curing a liquid polymer by exposure to a radiation, which radiation (e.g., at 410 nm) is provided by a collimated light source composed of an array of light emitting diode (LED) sources, an array of baffles, and an array of lenses. The baffles limit beam widths of each individual LED source in the array of LED sources, and the array of lenses is located one focal length from said array of LED sources.