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DLP Printing: Light Engine
This lecture delves into the inner workings of a DLP printer, focusing on the light engine. It covers the modulation of a light source with a micromirror array, magnification by a projection lens, and the discussion of diffraction effects. The historical perspective of single photon polymerization in 3D printing is explored, along with the first patent for Rapid Prototyping. The lecture also touches on the Digital MicroMirror Array, the build volume, complex projection lens modeling, and wave optics correction. The presentation concludes with simulations and real surface measurements in DLP printing.