Waveguide, edge-lit illumination arrangement and display comprising such

A waveguide comprising

• an entry side face for coupling linht into the waveguide,
• an exit surface for emission of light from the waveguide, and
• polarization-selective light outcoupling means for coupling out waveguided light through the exit surface polarization selectively,
• the polarization-selective outcoupling means comprising a volume hologram configured to selectively diffract waveguided light towards the exit surface,
• wherein
• the polarization selective outcoupling means include a volume hologram configured to diffract waveguided light at a Bragg-angle of about 45°.

A waveguide comprising

• an entry side face for coupling light into the waveguide,
• an exit surface for emission of light from the waveguide, and
• polarization-selective light outcoupling means for coupling out waveauided light through the exit surface polarization selectively,
• the polarization-selective outcoupling means comprising a volume hologram configured to sclectively diffract waveauided light towards the exit surface,
• wherein
• the polarization-selective light outcoupling means comprises, disposed between the volume hologram and the entry side face,
• a polarization-selective beam splitting interface or layer for splitting waveguided light into light of a first polarization and light of a second polarization,
• at least the light of the first polarization being directed towards the volume hologram which is configured to selectively diffract the light of the first polarization.

A waveguide comprising

• an entry side face for coupling light into the waveguide,
• an exit surface for emission of light from the waveguide,
• a back surface opposite the exit surface, and
• a volume hologram configured to selectively couple out light to one side of the waveguide,
• the one side being the exit surface side of the waveguide, and
• the waveguide having a forward-to-backward contrast of at least ten at at least one emission angle.

A waveguide comprisina

• an entry side face for coupling light into the waveguide,
• an exit surface for emission of light from the waveguide,
• a back surface onoosite the exit surface, and
• a volume hologram configured to selectively connie out light to one side of the waveguide,
• the one side being the exit surface side of the waveguide
• wherein
• the waveguide has an end face opposite the entry side face which end face is provided with means for reducing the amount of light reflected back into the waveguide.