Device for the projection of images using two orthogonal components of light polarization

An image projector comprising:

• at least one light source,
• at least two light modulation sets,
• at least one projection objective,
• wherein each light modulation set comprises a spatial light modulator, a polarization splitter that splits the light into a first polarized beam and a second polarized beam propagating along different directions and having different and complementary polarizations,
• wherein each light modulation set comprises means to superimpose the first and second polarized beams on one and the same optical axis with opposite directions of propagation, the spatial light modulator is positioned on said optical axis in order to modulate the first and second polarized beams that pass through the spatial modulator and respectively form a first modulated beam and a second modulated beam having complementary polarizations,
• wherein the two modulated beams pass again through the same polarization splitter, by which they are superimposed on one another and have the same propagation direction along at least one axis, and propagate towards at least one of the projection objective and the light source, wherein relative intensities of the superimposed and modulated beams propagating respectively towards the projection objective and the light source are a function of modulation by the spatial light modulator of the first and second polarized beams, wherein the polarization splitters are selective in wavelength and form imbricated and intersecting surfaces.