| 摘要 |
A 3D printer and a projecting apparatus for the 3D printer. The projecting apparatus comprises a light source (1) and a display panel (2); the display panel (2) is configured to display a to-be-printed image, the to-be-printed image comprising a light-transmitting area and/or a light-shading area, and light emitted by the light source (1) being capable of passing through the light-transmitting area; and after passing through the light-transmitting area, the light emitted by the light source (1) is non-polarized light. After passing through a light-transmitting area of a display panel (2), light emitted by a light source (1) is very low in loss, the light still has higher intensity after reaching a transparent liquid storage tank (3), and the light source (1) has relatively low power, and can emit light with a light intensity needed by enabling a photopolymerization material to polymerize, such that the projecting apparatus is lower in power consumption, and the power consumption of the printer comprising the projecting apparatus is accordingly reduced on the whole. |
