On the 12th, it was learned from Tsinghua University that the team led by Academician Dai Qionghai has spent 5 years researching and developing the Computational Holographic Light Field (DISH) 3D printing technology, which breaks through the core contradiction between traditional 3D printing speed and accuracy. It compresses the exposure printing time of millimeter sized complex structures to 0.6 seconds, setting a new record in the field of volumetric 3D printing and providing a new technological solution for cutting-edge fields such as biomedical and micro/nano manufacturing. The relevant results were published online on the same day in the international journal Nature. Traditional 3D printing technology has always struggled to balance efficiency and accuracy. Printing point by point and layer by layer has high accuracy but takes a long time, and processing millimeter level objects often takes tens of minutes. The existing volume printing technology, such as axial lithography, achieves integrated molding, but due to issues such as sample rotation and insufficient depth of field, the accuracy of the defocused area drops sharply, and only high viscosity materials can be used, limiting its application range. The DISH 3D printing technology developed this time applies computational optics from capturing light field information in reverse to solid construction. Through the design system of computational imaging reverse process, it achieves a technological leap from information acquisition to solid manufacturing. The team has overcome key challenges such as high-speed control of multi view light fields, optimization of holographic patterns to expand depth of field, and high-precision optical path correction using digital adaptive optics. With the core of manipulating high-dimensional light fields to construct three-dimensional entities, multiple technological breakthroughs have been achieved. It is reported that this technology has an exposure speed that is 10 times faster than traditional volume printing, and can complete millimeter level structural printing in 0.6 seconds. Due to its ultra short exposure time, it greatly reduces the impact of material flow and is compatible with a full range of printing materials from near water viscosity dilute solutions to high viscosity resins. At the same time, the technology combines adaptive optical calibration with holographic algorithms to expand the same parameter depth of field from 50 microns to 1 centimeter. The optical resolution remains stable at 11 microns within a 1 centimeter range, and the finest independent features of the printed product reach 12 microns. In addition, printing containers do not require special design or high-precision mechanical motion, and can achieve batch continuous printing inside fluid pipelines, greatly expanding application scenarios. This achievement can be applied in tissue engineering, high-throughput drug screening, in situ bioprinting, as well as industrial batch manufacturing of photon computing devices and micro modules in the future. It is also expected to achieve multi material stacking printing, empowering the development of flexible electronics, micro robots and other fields. (New Society)