AN OPTICAL ENGINE FOR MINIATURE PROJECTION UTILISING A POLARISING BEAM SPLITTER AND TWO REFLECTIVE FIELD SEQUENTIAL OR COLOUR FILTER LCOS PANELS

摘要

An optical engine for image projection having one or more light sources such as LED's or lasers producing light that is then collected and directed onto a common illumination through a polarizing beam splitter that reflects light of one polarisation and transmits light of the other polarisation onto two reflective LCoS panels, one adapted for use with the reflected light and the other with the transmitted light, both panels reflecting their respective light and producing images that are then reflected from each of the panels and superimposed passing through a projection system to project the image out of the optical engine