PROVIDING UNIFORM BACKGROUND IMAGE ILLUMINATION WITH ZERO-ORDER LIGHT FROM A PHASE LIGHT MODULATOR TO A SPATIAL LIGHT MODULATOR

原文（中国語）

A method includes modulating, by a phase light modulator (PLM), incident light to produce background image illumination comprising background image light and zero-order light that is directed towards a first lens array; projecting, by the first lens array, the background image light towards a second lens array; projecting, through an optical tunnel extending between the first lens array and the second lens array, the zero-order light towards an embedded lens in the second lens array; projecting, by the second lens array, the background image light towards focusing optics; projecting, by the embedded lens, the zero-order light towards the focusing optics; focusing, by the focusing optics, light comprising the background image light and the zero-order light towards a spatial light modulator (SLM); and modulating, by the SLM, the focused light to project an image.