Researchers develop innovative 3D-printing technology for glass microstructures - Berkeley Engineering
engineering.berkeley.edu
New system enables faster production, greater optical quality and design flexibility

(Wait, what? This is from 2022??? I have known about CAL for a while, but this glass stuff is new to me.)

3DPN video: https://youtu.be/pkBP_eO-Pug?si=l4__tZwrNDB4qNlU

CAL: computed axial lithography

Researchers at UC Berkeley have developed a new way to 3D-print glass microstructures that is faster and produces objects with higher optical quality, design flexibility and strength, according to a new study published in the April 15 issue of Science.