A projection device comprising at least one light source, at least one light-modulation panel preceding the light source, and polarization-separating means arranged between said light source and said light-modulation panel for separating light from the light source into first and second light beams having a first and a second direction of polarization, respectively. The projection device also comprises first and second integrator plates comprising lens elements which are arranged between said polarization-separating means and said light-modulation panel, and polarization-converting means arranged opposite the second integrator plate. Each lens element of the second integrator plate includes a first portion on which a first light beam is projected by the first integrator plate, and a juxtaposed, second portion, on which a second light beam is projected. The polarization-converting means are arranged at least opposite said first portions.