3D PRINTER OPTICAL MACHINE WITH LIGHT CURING, PRINTER, AND METHOD FOR LIGHT DISPLAY Russian patent published in 2022 - IPC B29C64/129 B29C64/277 B33Y30/00 

FIELD: printing.

SUBSTANCE: 3D printer optical machine with light curing contains a set of light sources, which are evenly arranged, and which simultaneously emit dissipated light within the first preset angle; a lattice plate, which has vertical optical channels right above each light source, each of which is located in the center of an optical channel with sidewalls limiting light reflection; optical glass located above the lattice plate and having cells formed by condensing lenses above each of optical channels; and a transmitting liquid-crystal screen with a pixel matrix, located above optical glass. Part of dissipated light emitted by light sources enters optical channels at the second preset angle, comes outside, and enters cells formed by condensing lenses, and, after collimation with cells in the range of angles from 0 to 20 degrees, is directed to the transmitting liquid-crystal screen, and light from the set of light sources is respectively collimated, and it completely covers the transmitting liquid-crystal screen.

EFFECT: improvement of light uniformity and improvement of a substance curing effect.

10 cl, 6 dwg