| 摘要 |
Devices and methods for collecting and distributing light from a light emitting diode (LED) emitter onto a phosphor layer to produce substantially white light are provided. The devices may include a reflective cavity with a reflective material, surrounding the reflective cavity, with a reflective side of the reflective material facing towards the inside of the reflective cavity. Further, the devices may incorporate an LED on one end of the reflective cavity and a phosphor layer on another end. Additionally, the devices may use a gradient index (GRIN) rod lens to refract light produced from the LED onto a phosphor surface with an LED on one end of the GRIN rod lens and the phosphor layer on the other end.
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