Three-Dimensional Printing Device and Light Source Controlling Method and Mechanism Thereof

A light source controlling mechanism, applied to a three-dimensional printing device, the light source controlling mechanism comprising:

• a selective light-transmitting display, configured to selectively allow a light to pass;
• a light source, comprising a plurality of LED lamp sets, wherein the plurality of LED lamp sets are configured to emit light to the selective light-transmitting display;
• a power supply, electrically connected to the light source and configured to provide driving currents to the plurality of LED lamp sets;
• a current adjustment mechanism, electrically connected to each of the plurality of LED lamp sets and configured to adjust a driving current of a corresponding LED lamp set according to a relationship between a plurality of first illumination data of the plurality of LED lamp sets, to make the plurality of first illumination data of the plurality of LED lamp sets consistent;
• wherein the plurality of first illumination data are illumination data of the light projected by the plurality of LED lamp sets and passing through the selective light-transmitting display.

A three-dimensional printing device, comprising a material tray, a forming platform, and a light source controlling mechanism, wherein the material tray is configured to hold a printing material, and the printing material is configured to be formed layer by layer on the forming platform under an irradiation of the light source, so as to obtain a printed object, wherein the light source controlling mechanism comprising:

• a selective light-transmitting display, configured to selectively allow a light to pass;
• a light source, comprising a plurality of LED lamp sets, wherein the plurality of LED lamp sets are configured to emit light to the selective light-transmitting display;
• a power supply, electrically connected to the light source and configured to provide driving currents to the plurality of LED lamp sets;
• and
• a current adjustment mechanism, electrically connected to each of the plurality of LED lamp sets and configured to adjust a driving current of a corresponding LED lamp set according to a relationship between a plurality of first illumination data of the plurality of LED lamp sets, to make the plurality of first illumination data of the plurality of LED lamp sets consistent;
• wherein the plurality of first illumination data are illumination data of the light projected by the plurality of LED lamp sets and passing through the selective light-transmitting display.