Projection system has two tilting mirror matrixes and imaging lens, which projects former tilting mirror matrix onto latter tilting mirror matrix, where each tilting mirror matrix has multiple tilting mirrors

摘要

The projection system (1) has two tilting mirror matrixes and an imaging lens (4), which projects former tilting mirror matrix onto latter tilting mirror matrix. Each tilting mirror matrix has multiple tilting mirrors and the tilting axes of which are positioned in a modulator surface. The imaging lens comprises former lens and an imaging mirror, and that the imaging mirror forms an aperture diaphragm of the imaging lens. The aperture diaphragm has an uneven angle of 90 degree together with the normal of the modulator surface of former tilting mirror matrix without any optical path folds.