Zone illuminated reflective display

A projection system comprising:

• at least one source array having a plurality (m×n) of individually addressable sources in which each source has a size Ys and an emission cone numerical aperture (NAs);
• at least one concentrator array made of a plurality (m×n) of individual concentrators overlying the source array in which each individual concentrator comprises:
• an input facet size Yin;
• and
• an output facet size Yout, wherein the concentrators are configured to condition output light from the source array from NAs to a smaller numerical aperture NAout;
• a non-emissive display comprising an array of k×l individually addressable pixels, wherein k and l are each at least 500 and a pixel size is selected by desired far-field angular resolution and volume constraints of the projector system, the non-emissive display having an active area XY;
• an illumination optical system configured to image the output facet of the individual concentrators onto the non-emissive display with a magnification factor M;
• and
• a projection lens adapted to collimate light from the non-emissive display, the projection lens having a focal length f and a pupil diameter D.