3D-printed lenses fresh (and wet) from the printer look clear, but have tiny surface imperfections that must be dealt with. One technique involves applying a thin layer of liquid resin to the ...

Rapid liquid 3D printing uses gel suspension for fast support-free printing. This method is fast, requires no post-processing ...

3D printing by painting with light beams on a vat of liquid plastic was once the stuff ... which uses a resin that is largely transparent to the wavelength of light concerned, but critically ...