Providing remote blue phosphors in an LED lamp
First Claim
1. An LED lamp comprising:
- a first plurality of n radiation sources configured to emit radiation characterized by a first wavelength, the first wavelength being substantially violet;
a second plurality of m radiation sources configured to emit radiation characterized by a second wavelength, the second wavelength being substantially violet; and
a first wavelength converting layer configured to absorb at least a portion of the radiation emitted by the first plurality of radiation sources, the first wavelength converting layer having an emission wavelength ranging from about 420 nm to about 520 nm.
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Accused Products
Abstract
Light emitting devices and techniques for using remote blue phosphors in LED lamps are disclosed. An LED lamp is formed by configuring a first plurality of n of radiation sources to emit radiation characterized by a first wavelength, the first wavelength being substantially violet, and configuring a second plurality of m of radiation sources to emit radiation characterized by a second wavelength, the second wavelength also being substantially violet. Aesthetically-pleasing white light is emitted as the light from the radiation sources interacts with various wavelength converting materials (e.g., deposits of red-emitting materials, deposits of yellow/green-emitting materials, etc.) including a blue-emitting remote wavelength converting layer configured to absorb at least a portion of the radiation emitted by the first plurality of radiation sources. The remote wavelength converting layer emits wavelengths ranging from about 420 nm to about 520 nm.
197 Citations
22 Claims
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1. An LED lamp comprising:
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a first plurality of n radiation sources configured to emit radiation characterized by a first wavelength, the first wavelength being substantially violet; a second plurality of m radiation sources configured to emit radiation characterized by a second wavelength, the second wavelength being substantially violet; and a first wavelength converting layer configured to absorb at least a portion of the radiation emitted by the first plurality of radiation sources, the first wavelength converting layer having an emission wavelength ranging from about 420 nm to about 520 nm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An LED lamp comprising:
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a first plurality of n radiation sources configured to emit radiation characterized by a first wavelength, the first wavelength being substantially blue; and a second plurality of m radiation sources configured to emit radiation characterized by a second wavelength, the second wavelength being substantially violet; and a first wavelength converting layer configured to absorb at least a portion of radiation emitted by the second plurality of radiation sources, the first wavelength converting layer having an emission wavelength ranging from about 500 nm to about 750 nm. - View Dependent Claims (20)
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21. An LED lamp with an outer surface having a white appearance under ambient light, comprising:
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a light source; an outer surface, the outer surface positioned to form a remote structural member; a first wavelength converting layer disposed on the remote structural member, the first wavelength converting layer configured to absorb at least a portion of radiation emitted by the light source, the first wavelength converting layer having an emission wavelength ranging from about 420 nm to about 520 nm; and a second wavelength converting layer disposed on the remote structural member, the second wavelength converting layer having an emission wavelength ranging from about 490 nm to about 630 nm. - View Dependent Claims (22)
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Specification