Abstract: There is provided a first illumination system having at least three diode and/or laser light sources including a red, a green and a blue light source. The first illumination system further has at least three polarizing light converting elements corresponding to each colour of light sources, at least three liquid crystal panels corresponding to each colour of light sources, and at least one prism arrangement. There is also provided a light source module having at least a first diode or laser light source providing light in the visible range, at least a second light source comprising an UV (ultra-violet) or a low wavelength blue diode or laser light source, and a beam splitter or reflection system.