Light-source with fabric diffusing layer
AssigneeKoninklijke Philips Electronics N.V.
InventorsSima Asvadi, Martijn Krans, Michel Paul Barbara Van Bruggen, Johannes Theodorus Adriaan Wilderbeek, Jacob Marinus Jan Den Toonder
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Abstract
A light-source comprising at least one lighting unit (101) being arranged on a substrate (102) and a diffusing element (103) being arranged to receive and diffuse light emitted by said at least one lighting unit (101) is provided. The diffusing element (103) comprises a layer of non-woven fabric having a lower density at a side facing the lighting unit and a higher density at a side opposite to the lighting unit to obtain good diffusing properties.
Claims27
A light-source comprising at least one lighting unit (101) being arranged on a substrate (102) and a diffusing element (103) being arranged to receive and diffuse light emitted by said at least one lighting unit (101), said diffusing element (103) comprising at least one layer of non-woven fabric, characterized in that the density of the diffusing element (103) is lower at a first side of the diffusing element facing a lighting unit compared to the density at a second side of the diffusing element opposite to said lighting unit.
A light-diffusing element (103) for arrangement on a lighting unit, said diffusing element comprising at least one layer of non-woven fabric, wherein the density of the diffusing element is lower at a first face of the diffusing element adapted to face a lighting unit of said light source, compared to the density at a second face of the diffusing element adapted to be opposite to said lighting unit.
Dependencies are inferred from the claim text.