An optical device for an image projector for providing a projected wide field of view image, includes a first dichroic mirror or splitter, arranged in an input path for receiving light of a plurality of wavelength bands, and adapted to output by reflection on a first path respective first portions of selected ones of the wavelength bands and by transmission on a second path respective second portions of the selected ones of the wavelength bands. Light modulating devices, arranged in respective ones of the first and second paths to receive the first and second portions, generate and output on respective first and second intersecting output paths modulated ones of the first and second portions. A second dichroic mirror or combiner, adapted to reflect one and transmit the other of the first and second portions, is arranged in an area of intersection of the first and second intersecting output paths, to output, by reflection and transmission, respectively, the modulated ones of the first and second portions on a common output path.