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:
May. 12, 2020
Filed:
May. 12, 2017
Brett Kelly, Berkeley, CA (US);
Robert Panas, Dublin, CA (US);
Maxim Shusteff, Oakland, CA (US);
Christopher Spadaccini, Oakland, CA (US);
Hayden Taylor, Berkeley, CA (US);
Indrasen Bhattacharya, Berkeley, CA (US);
Brett Kelly, Berkeley, CA (US);
Robert Panas, Dublin, CA (US);
Maxim Shusteff, Oakland, CA (US);
Christopher Spadaccini, Oakland, CA (US);
Hayden Taylor, Berkeley, CA (US);
Indrasen Bhattacharya, Berkeley, CA (US);
Lawrence Livermore National Security, LLC, Livermore, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A method of forming a three dimensional (3D) object is disclosed. The method may involve providing a volume of photo-curable resin contained within an optically transparent resin container, and simultaneously directing optical projections from an optical subsystem at a plurality of angles θ through the volume of photo-curable resin. The optical beams are directed about a z axis extending through the volume of photo-curable resin. Each of the projections is provided with a calculated 2D spatial intensity function which creates a 3D intensity map. The projections act over a fixed temporal exposure period, during which the net exposure dose is sufficient to cure select portions of the volume of photo-curable resin, and to leave other portions uncured, to form a desired 3D part.