Light emitting tufted carpet
AssigneeKoninklijke Philips Elecronics N.V.
InventorsMaarten Marinus Johannes Wilhelmus Van Herpen, Marcellinus Petrus Carolus Michael Krijn
Life of this patent
Estimating the term…
Abstract
The invention provides amongst others a light emitting tufted carpet with a primary backing layer permeable to light, an optional adhesive layer, a waveguide comprising a light out-coupling site, and an optional secondary backing layer. The primary backing layer is provided with tufts. The waveguide is arranged to couple light source light of a light source in as waveguide light, and arranged to couple waveguide light out at the waveguide light out-coupling site to provide carpet light. The waveguide light out-coupling site is below the primary backing layer.
Claims13
A light emitting tufted carpet having a carpet top layer and a carpet bottom layer, the light emitting tufted carpet comprising:
- a primary backing layer permeable to light substantially over its entire surface,
- a waveguide-comprising a light out-coupling site integrated within the carpet, and
- wherein the primary backing layer has a primary backing layer carpet face being the carpet top layer and a primary backing layer bottom face,
- wherein the wavequide has substantially the same area as the primary backing layer,
- wherein the primary backing layer is provided with tufts at the primary backing carpet face substantially over its entire surface;
- wherein the light out-coupling site is arranged between the primary backing layer bottom face and the carpet bottom layer, and
- wherein the waveguide is arranged to couple light source light of a light source in as waveguide light, and
- wherein the waveguide is arranged to couple waveguide light out at the waveguide light out-coupling site to provide carpet light.
A method for the production of the light emitting tufted carpet, the method comprising:
- providing a primary backing layer permeable to light substantially over its entire surface,
- providing an adhesive and a plurality of waveguides comprising a plurality of light out-coupling sites disposed toward a primary backing layer bottom face of the primary backing layer or a secondary backing layer top face of a secondary backing layer, and
- laminating the primary backing layer and the secondary backing layer to each other,
- wherein the plurality of waveguides are integrated within the carpet and have substantially the same area as the primary backing layer;
- wherein the primary backing layer is provided with tufts at the primary backing carpet face substantially over its entire surface;
- wherein the light out-coupling site is arranged between the primary backing layer bottom face and the carpet bottom layer, and
- wherein the waveguide is arranged to couple light source light of a light source in as waveguide light, and
- wherein the waveguide is arranged to couple waveguide light out at the waveguide light out-coupling site to provide carpet light.
Dependencies are inferred from the claim text.