Tsinghua Demonstrates Rapid High-Resolution Volumetric Printing
Researchers at Tsinghua and Zhejiang universities publish in Nature a volumetric 3D printing method, Digital Incoherent Synthesis of Holographic Light Fields (DISH), that fabricates millimetre-scale objects in 0.6 seconds while maintaining uniform 19 μm resolution across a 1 cm depth. DISH uses a rotating periscope, high-rate binary projections, and holographic wave-optics modeling to overcome focal-depth limits, achieving 333 mm³/s throughput and compatibility with low-viscosity resins. This enables sequential flow-based production without mould changes.
Key Points
- 1Achieves 0.6-second exposures, 333 mm³/s throughput, uniform 19 μm resolution across 1 cm depth
- 2Uses rotating periscope and holographic wave-optics modeling to preserve high-resolution modulation beyond focal plane
- 3Enables low-viscosity materials and continuous flow production, supporting successive fabrication without mould changes
Scoring Rationale
High novelty and industry relevance with Nature validation; computational preprocessing and specialized optics limit near-term adoption.
Sources
Public references used for this report.
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