Extended Data Fig. 8: Illustration of the adaptive-optics-based calibration process.
From: Sub-second volumetric 3D printing by synthesis of holographic light fields
a, Schematic diagrams depicting the beam path during calibration. The illustrated calibration process aims to shift the intersection point of the beam at the z = 0 plane to the printing centre by introducing lateral offsets in optimized DMD patterns for each angle. b, The coordinates of the beam’s intersection point at the z = 0 plane are determined by the images captured by the side and front cameras. c, Time-lapse images demonstrate the beams for a single point before and after calibration. d, A series of DMD offsets are obtained for each projection angle, to ensure that the corresponding rays converge at the target point. The simulations of the ray tracing are shown on the right, illustrating the conditions before and after calibration. e, High-resolution patterns viewed from the front and side after calibration. Scale bars, 100 μm.
