” It’s been said that volumetric 3D printing has more speed, flexibility, and geometric versatility than other methods, with a lower cost. In late 2017, researchers at Lawrence Livermore National Laboratory (LLNL) in California teamed up with collaborators from MIT, the University of Rochester, and UC Berkeley to develop this method, which flashes laser-generated, hologram-like 3D images into photosensitive resin…”
Source: https://3dprint.com/235277/llnl-uc-berkeley-volumetric-3d-printing-method/