Device and method for emitting output light using quantum dots and non-quantum fluorescent material
First Claim
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1. A device for emitting output light, said device comprising:
- a light source that emits original light; and
a wavelength-shifting region optically coupled to said light source to receive said original light, said wavelength-shifting region including at least one type of quantum dots to convert some of said original light to first converted light, said wavelength-shifting region further including non-quantum fluorescent material to convert some of said original light to second converted light, said first converted light and said second converted light being components of said output light.
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Abstract
A device and method for emitting output light utilizes both quantum dots and non-quantum fluorescent material to convert at least some of the original light emitted from a light source of the device to longer wavelength light to change the color characteristics of the output light. The device can be used to produce broad-spectrum color light, such as white light.
125 Citations
20 Claims
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1. A device for emitting output light, said device comprising:
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a light source that emits original light; and a wavelength-shifting region optically coupled to said light source to receive said original light, said wavelength-shifting region including at least one type of quantum dots to convert some of said original light to first converted light, said wavelength-shifting region further including non-quantum fluorescent material to convert some of said original light to second converted light, said first converted light and said second converted light being components of said output light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for emitting output light, said method comprising:
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generating original light; receiving said original light, including converting some of said original light to first converted light using at least one type of quantum dots and converting some of said original light to second converted light using non-quantum fluorescent material; and emitting said first converted light and said second converted light as components of said output light. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A device for emitting output light, said device comprising:
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a light source that emits original light; and a wavelength-shifting region optically coupled to said light source to receive said original light, said wavelength-shifting region including at least one type of quantum dots to convert some of said original light to first converted light, said wavelength-shifting region further including a plurality of non-quantum phosphor particles to convert some of said original light to second converted light, said first converted light and said second converted light being components of said outputs light. - View Dependent Claims (19, 20)
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Specification