Use of dynamic masks for object manufacture

摘要: A dynamic mask (spatial light modulator) is used to produce a defined amplitude pattern in the imaging or Fourier plane of lens system for application object manufacture and rapid prototyping. The polarisation an illuminating optical wavefront phase modulated by spatial modulator after transmission through, reflection from, polarising element. so generated imaged transformed photosensitive medium order create specified level slice 3-D model component under construction. Alternatively, calculated written modulating modulator. such that when optically transformed, intensity back focal system. Derived from its CAD solid model, this will correspond given cross-section through prototype