CPC B29C 64/135 (2017.08) [B29C 64/245 (2017.08); B29C 64/268 (2017.08); B29C 64/277 (2017.08); G06T 17/20 (2013.01); B29C 64/236 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] | 49 Claims |
1. A stereolithographic 3D printing device comprising:
a) a static optical assembly comprising:
i. a light engine configured to project a luxbeam comprising a plurality of pixels along a Z axis;
ii. at least one collimation lens configured to collimate the luxbeam;
iii. a microlens array (MLA) configured to focus the collimated luxbeam to a final beam of smaller diameter, wherein each pixel of the luxbeam is subdivided into a plurality of sub-pixels to multiply resolution of the final beam;
iv. a microdiaphragm array (MDA) configured to reduce noise and cross-talk between lenses of the MLA;
v. at least one projection lens; and
vi. a movable stage configured to translate one or more of the at least one projection lenses in a X-Y plane;
wherein the distances along the Z axis between the light engine, the collimation lens, the MLA, the at least one projection lens, and the movable stage of the static optical assembly are fixed;
b) a printing vat comprising a printing stage movable on the Z axis; and
c) control circuitry configured to control at least the light engine, the movable stage, and the printing stage to achieve stereolithographic 3D printing.
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