Precision light control for structural coloration in 3D printing

https://phys.org/news/2023-08-3d-technology-precision.html

"structural color (without dyes) or spectrum desired location without restricting substrate material or shape... lateral printing diffraction grating: regularly arranged microstructure controlling light diffraction... light reflected different paths depending on wavelength... lateral printing: very fine high-density nanowire diffraction gratings control light diffraction by moving 3D printing nozzle as if sewing to print bridge shape... smart windows, mirrors, automotive heads-up displays, mechanical engineering and biomedical"

Related: AI-driven tool makes it easy to personalize 3D-printable models
https://techxplore.com/news/2023-09-ai-driven-tool-easy-personalize-3d-printable.html