Loading patent…
AssigneeKoninklijke Philips Electronics N.V.
InventorsHugo Johan Cornelissen, Hendrik Johannes Boudewij Jagt, Dirk Jan Broer, Cornelis Wilhelmus Maria Bastiaansen, Henri Marie Joseph Boots, Rifat Ata Mustafa Hikmet, Horst Greiner
Estimating the term…
A polarized light emitting waveguide plate (60) comprises an entrance side (64) for coupling light into the wave guide plate (60), a major exit surface (65) for coupling light out of the waveguide plate, and polarization means for selectively directing a component of a first polarization state of light coupled in via the entrance side (64) towards the exit surface (65), the polarization means comprising an anisotropically light scattering layer (26) which selectively scatters the component of the first polarization state towards the exit surface (65). In a preferred embodiment the waveguide plate (60) is made of conventionally processed polymeric materials in the form of a laminate of waveguide substrate (68), anisotropically light scattering layer(26) and, optionally, an optically transparent cover layer (69).
A polarized light emitting waveguide plate comprising an entrance side for coupling light into the waveguide plate, a major exit surface for coupling light out of the waveguide plate, and polarization means for selectively directing light of a first polarization state from the entrance side towards the exit surface, the polarization means comprising an anisotropically light scattering layer which selectively scatters light of the first polarization state towards the exit surface.
An illumination system comprising a waveguide plate as claimed in any one of the preceding claims and a light source arranged near an entrance side thereof.
Dependencies are inferred from the claim text.