Title:
3D PRINTING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/218643
Kind Code:
A1
Abstract:
A 3D printing system, comprising: a light-emitting unit (10) for emitting excitation light; a wavelength conversion unit (20) for receiving the excitation light and outputting curing light; a combined lens unit (30) for refracting the curing light onto a DMD digital micromirror unit (31) and guiding, to a light-curing material to be cured, the curing light reflected by the DMD digital micromirror unit (31); the DMD digital micromirror unit (31), which is used for receiving the curing light refracted by the combined lens unit (30) and selectively reflecting the curing light; and a control unit (50), wherein the control unit (50) is electrically connected to the light-emitting unit (10), the wavelength conversion unit (20), the combined lens unit (30) and the DMD digital micromirror unit (31). In the system, the light-emitting unit (10) is used as a curing light source, and the wavelength conversion unit (20) is added to make the wavelength of laser of the curing light source adjustable, thereby avoiding damage brought about by ultraviolet light, breaking through the limitation of monochromatic light curing materials, having the advantages of being safe, being environmentally friendly, having a high light emission efficiency, having light beams with good quality, etc., and being capable of realizing multi-colored 3D printing.
Inventors:
CUI KEJIAN (CN)
YU XIN (CN)
ZHANG XIANPENG (CN)
YU XIN (CN)
ZHANG XIANPENG (CN)
Application Number:
PCT/CN2018/118820
Publication Date:
November 21, 2019
Filing Date:
December 03, 2018
Export Citation:
Assignee:
YLX INC (CN)
International Classes:
B29C64/268
Foreign References:
CN104118120A | 2014-10-29 | |||
CN105988266A | 2016-10-05 | |||
CN206115128U | 2017-04-19 | |||
CN104802400A | 2015-07-29 | |||
CN102854592A | 2013-01-02 | |||
US20140226306A1 | 2014-08-14 |
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