| 摘要 |
An apparatus comprising: a mounting board having a plurality of raised pads; a plurality of Light Emitting Diodes LEDs mounted on the plurality of raised pads of the mounting board; and a light mixing cavity configured to reflect light emitted from the plurality of LEDs until the light exits through an output window; wherein the output window is disposed above the plurality of LEDs and is physically separated from the plurality of LEDs, the light mixing cavity comprising a bottom reflector having a plurality of voids, the plurality of LEDs are elevated by the plurality of raised pads above a top surface of the bottom reflector through the plurality of voids, and wherein a first portion of the light mixing cavity is coated with a first type of wavelength converting material. |
