Picture projection apparatus

An image projection apparatus comprising:

• temporal color separation means and spatial color separation means;
• wherein, during a first time period:
• said temporal color separation means receives incident light, said incident light having a plurality of spectral bands, said plurality of spectral bands including a first spectral band, a second spectral band and a third spectral band, said first, second and third spectral bands being polarized in a shared polarization axis,
• said temporal color separation means removes said second spectral band from said received incident light, said first and third spectral bands remaining after removal of said second spectral band, said remaining first and third spectral bands traveling along the same optical path and being polarized in the same polarization axis, and
• said spatial color separation means split said remaining first spectral band from said remaining third spectral band by polarizing said remaining third spectral band from said common polarization axis to a polarization axis different from said common polarization axis,
• first modulation incident light being said remaining first spectral band, and second modulation incident light being said remaining third spectral band polarized in said another polarization axis.