Light Emitting Device with an Improved Caalsin Light Converting Material
AssigneeKoninklijke Philips Electronics N.V.
InventorsPeter J. Schmidt, Joerg Meyer, Walter Mayr, Wolfgang Busselt, Hans-Helmut Bechtel
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Abstract
Light emitting device with a light source to emit primary light and a light conversion layer to convert at least a part of the primary light into secondary light comprising a CaAlSiN light converting material with a transmissivity of >10% to ≦80% for a light in the wavelength range from >580 to ≦lOOOnm.
Claims10
Light emitting device with a light source to emit primary light and a light conversion layer to convert at least a part of the primary light into secondary light comprising a CaAlSiN light converting material with a transmissivity of ≧10% to ≦80% for a light in the wavelength range from ≧580 to ≦1000 nm.
Dependencies are inferred from the claim text.