Method of light dispersion and preferential scattering of certain wavelengths of light-emitting diodes and bulbs constructed therefrom
First Claim
1. A light emitting diode (LED) light bulb, comprising:
- a base having threads;
a bulb shell connected to the base and enclosing an inner portion of the LED bulb;
a plurality of particles disposed within the bulb shell;
at least one LED centrally located in the inner portion of the LED bulb, the at least one LED configured to emit light at a dominant wavelength; and
wherein said plurality of particles comprises;
a first set of particles configured to scatter short wavelength components of the light emitted from the at least one LED, where the particles of the first set have an effective diameter that is a fraction of the dominant wavelength of the light emitted from the at least one LED; and
a second set of particles configured to scatter the light emitted from the at least one LED,wherein the particles of the second set comprise a non-phosphor material different than the particles of the first set and have an effective diameter equal to or greater than the dominant wavelength of the light emitted from the at least one LED.
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Accused Products
Abstract
A light emitting diode (LED) bulb configured to scatter certain wavelengths of light. The LED bulb includes a base having threads, a bulb shell, at least one LED, and a plurality of particles disposed within the bulb shell. The plurality of particles has a first and second set of particles. The first set of particles is configured to scatter short wavelength components of light emitted from the at least one LED and has particles with an effective diameter that is a fraction of the dominant wavelength of the light emitted from the at least one LED. The second set of particles is configured to scatter light emitted from the at least one LED, and has particles with an effective diameter equal to or greater than the dominant wavelength of the light emitted from the at least one LED.
380 Citations
21 Claims
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1. A light emitting diode (LED) light bulb, comprising:
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a base having threads; a bulb shell connected to the base and enclosing an inner portion of the LED bulb; a plurality of particles disposed within the bulb shell; at least one LED centrally located in the inner portion of the LED bulb, the at least one LED configured to emit light at a dominant wavelength; and wherein said plurality of particles comprises; a first set of particles configured to scatter short wavelength components of the light emitted from the at least one LED, where the particles of the first set have an effective diameter that is a fraction of the dominant wavelength of the light emitted from the at least one LED; and a second set of particles configured to scatter the light emitted from the at least one LED, wherein the particles of the second set comprise a non-phosphor material different than the particles of the first set and have an effective diameter equal to or greater than the dominant wavelength of the light emitted from the at least one LED. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of making an LED bulb, comprising:
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connecting a bulb shell to base to enclose an inner portion of the LED bulb, wherein at least one LED is centrally located in the inner portion of the LED bulb; and disposing a plurality of particles within the bulb shell, wherein said plurality of particles comprises; a first set of particles configured to scatter short wavelength components of light emitted from the at least one LED, wherein the particles of the first set have an effective diameter that is a fraction of a dominant wavelength of the light emitted from the at least one LED; and a second set of particles configured to scatter the light emitted from the at least one LED, wherein the particles of the second set comprise a non-phosphor material different than the particles of the first set and have an effective diameter equal to or greater than the dominant wavelength of the light emitted from the at least one LED. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification