Patent ID: 8618570

Claim:
A method of making a light emitting diode (LED) light engine comprising the steps of: forming a plurality of base modules, wherein each base module is formed by mounting a substantially transparent solid dome over one or more LED dies, the one or more LED dies being adapted to emit light of a first wavelength range through a light emitting surface of the dome; making a first flexible sheath having embedded therein a phosphor or a phosphor blend that converts light of the first wavelength range to light of a second wavelength range different from the first wavelength range; making a second flexible sheath that has embedded therein a second phosphor or a second phosphor blend that converts light of the first wavelength range to a further wavelength range different from the first and second wavelength ranges; selecting one of the first and second sheaths for attachment to one of the plurality of base modules depending on the color of light to be emitted by the light engine; and attaching the selected sheath to the base module so that the selected sheath conforms to a shape of the light emitting surface of the dome.