Method of light dispersion and preferential scattering of certain wavelengths of light for light-emitting diodes and bulbs constructed therefrom
First Claim
1. A light-emitting diode (LED) bulb, comprising:
- a base;
a bulb shell connected to the base and enclosing an inner portion of the LED bulb;
at least one LED located in the inner portion of the LED bulb, the at least one LED configured to emit light at a dominant wavelength; and
a plurality of particles configured to scatter light emitted from the at least one LED,wherein said plurality of particles comprises;
a first set of particles disposed within the inner portion of the LED bulb, wherein the particles of the first set have an effective diameter less than the dominant wavelength of the light emitted from the at least one LED; and
a second set of particles intermixed with the first set of particles, wherein the particles of the second set are comprised of a different material 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.
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Citations
21 Claims
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1. A light-emitting diode (LED) bulb, comprising:
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a base; a bulb shell connected to the base and enclosing an inner portion of the LED bulb; at least one LED located in the inner portion of the LED bulb, the at least one LED configured to emit light at a dominant wavelength; and a plurality of particles configured to scatter light emitted from the at least one LED, wherein said plurality of particles comprises; a first set of particles disposed within the inner portion of the LED bulb, wherein the particles of the first set have an effective diameter less than the dominant wavelength of the light emitted from the at least one LED; and a second set of particles intermixed with the first set of particles, wherein the particles of the second set are comprised of a different material 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 a light-emitting diode (LED) bulb, comprising:
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connecting a bulb shell to a base to enclose an inner portion of the LED bulb, wherein at least one LED is located in the inner portion of the LED bulb; and disposing, within the inner portion of the LED bulb, a plurality of particles configured to scatter light emitted from the at least one LED, wherein said plurality of particles comprises; a first set of particles having an effective diameter that is less than a dominant wavelength of the light emitted from the at least one LED; and a second set of particles intermixed with the first set of particles, wherein the particles of the second set comprise a different material 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