An image generation unit (10) is proposed comprising a first, a second, and a third light source unit (S1, S2, S3) which are adapted in order to generate an emit respective first, second, and third primary illumination light components (Lr1, Lg1, Lb1). An image generation and light re-directing arrangement (IGR) is provided which is adapted in order to generate first, second and third partial images (Ir, Ig, Ib) for an image (I) to be displayed and in order to generate first, second, and third projection light components (Lpr, Lpg, Lpb) as light of said first, second, and third partial images (Ir, Ig, Ib), respectively and in order to emit said projection light components (Lpr, Lpg, Lpb) as light of said first, second, and third partial images (Ir, Ig, Ib), respectively into an essentially common output direction (XO), wherein said first, second and third light source units (S1, S2, S3) are arranged in order to emit said first, second and third primary illumination light components (L1r, L1g, L1b) into an essentially common input direction (XI).