Patent ID: 8970101
Filing Date: 2015-03-03
Classification: F21K,H05B

Abstract:
1. A system comprising: a base portion including (i) a first set of light emitting diodes configured to emit blue light having first wavelengths in a first wavelength range in a spectrum of blue light, and (ii) a second set of light emitting diodes configured to emit blue light having second wavelengths in a second wavelength range in the spectrum of blue light, wherein light emitting diodes of the first set and the second set of light emitting diodes are (i) arranged on the base portion in an alternating pattern, and (ii) are separated from each other by a first predetermined distance; a glass layer arranged at a second predetermined distance from the base portion; and a plurality of coatings of a first phosphor and a second phosphor arranged in an alternating pattern on a surface of the glass layer facing toward the light emitting diodes, wherein each of the coatings has a predetermined length, wherein centers of the coatings of the first phosphor align with centers of corresponding light emitting diodes in the first set of light emitting diodes, and wherein centers of coatings of the second phosphor align with centers of corresponding light emitting diodes in the second set of light emitting diodes.