Astra Optics Limited is a spin-off company from the Chinese University of Hong Kong (CUHK) that aims to commercialise ground-breaking 3D nanofabrication technology. This technology is protected by more than five United States patents, and has been published in the Science Magazine in 2019 and 2022. Its primary product, the Femtosecond Projection NanoPrinter, is a revolutionary nanoscale 3D printing platform. It has achieved the best-ever reported resolution at 20 nanometers and can print at a rate of 400 mm3/hour, which is three orders of magnitude higher than state-of-the-art commercial two-photon printing system that can only achieve a resolution of 150 nanometers. With its revolutionary product, the company enables industrial-scale applications of nanoscale 3D printing for the first time.
