Patent ID: 8193702

Claim:
An LED 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; and wherein said plurality of particles comprises: a first set of particles that preferentially scatters 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 a dominant wavelength of the light emitted from the at least one LED; and a second set of particles that disperses the light emitted from the at least one LED, 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, and wherein portions of both the first set of particles and the second set of particles are intermixed and dispersed throughout the inner portion of the LED bulb.