Solid state lighting devices including quantum confined semiconductor nanoparticles, an optical component for a solid state lighting device, and methods
First Claim
1. A solid state lighting device comprising a phosphor converted LED light source that emits white light including a blue spectral component and having a deficiency in at least one spectral region, and an optical component that is positioned to receive at least a portion of the white light generated by the light source and supplement the spectrum of the white light passing through the optical component, the optical component comprising an optical material for converting at least a portion of the blue spectral component of the white light to one or more predetermined wavelengths such that light emitted by the solid state lighting device includes white light emission from the light source supplemented with light emission at one or more predetermined wavelengths in a deficient spectral region of the light source, wherein the optical material comprises quantum confined semiconductor nanoparticles distributed in a host material, wherein the optical material is fully encapsulated by one or more barrier materials, and wherein the optical component is not in direct contact with the light source.
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Abstract
A solid state lighting device including a light source capable of emitting white light including a blue spectral component and having a deficiency in a spectral region, and an optical component that is positioned to receive at least a portion of the light generated by the light source, the optical component comprising an optical material for converting at least a portion of the blue spectral component of the light to one or more predetermined wavelengths such that light emitted by the solid state lighting device includes light emission from the light source supplemented with light emission at one or more predetermined wavelengths, wherein the optical material comprises quantum confined semiconductor nanoparticles. Also disclosed is lighting fixture, a cover plate for a lighting fixture and a method.
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Citations
41 Claims
- 1. A solid state lighting device comprising a phosphor converted LED light source that emits white light including a blue spectral component and having a deficiency in at least one spectral region, and an optical component that is positioned to receive at least a portion of the white light generated by the light source and supplement the spectrum of the white light passing through the optical component, the optical component comprising an optical material for converting at least a portion of the blue spectral component of the white light to one or more predetermined wavelengths such that light emitted by the solid state lighting device includes white light emission from the light source supplemented with light emission at one or more predetermined wavelengths in a deficient spectral region of the light source, wherein the optical material comprises quantum confined semiconductor nanoparticles distributed in a host material, wherein the optical material is fully encapsulated by one or more barrier materials, and wherein the optical component is not in direct contact with the light source.
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31. A solid state lighting device comprising a phosphor converted LED light source that emits white light including emission in the blue spectral region and having a deficiency in the orange to red spectral region;
- and an optical component that is positioned to receive and supplement the spectrum of white light emitted by the LED and passing through the optical component, the optical component comprising an optical material for converting at least a portion of the emission in the blue spectral region to light in the spectral region with a wavelength in a range from about 575 nm to about 650 nm such that light emitted by the solid state lighting device includes white light emission from the LED light source supplemented with converted light emission, wherein the optical material comprises quantum confined semiconductor nanoparticles and light scatterers distributed in a host material, wherein the optical material is fully encapsulated by one or more barrier materials, and wherein the optical component is not in direct contact with the light source.
- View Dependent Claims (32)
- 33. An optical component for use with a light source that emits white light including a blue spectral component and at least one spectral deficiency in another region of the spectrum of the white light emitted by the light source, the optical component comprising an optically transparent substrate comprising a diffuser and an optical material for converting at least a portion of the blue spectral component of white light output from the light source passing through the optical component to one or more predetermined wavelengths, wherein the optical material comprises quantum confined semiconductor nanoparticles and light scatterers distributed in a host material, wherein the optical material is disposed over a surface of the optically transparent substrate, and wherein the optical material is fully encapsulated by one or more barrier materials.
Specification