How Does A Blu-ray Led Emit White Light?

                                                                     Oct 30, 2018
Blu-ray photons have high energy and can excite fluorescence. Generally with Blu-ray LED blue light hit on the phosphor to produce yellow light, yellow light was excited by the blue light, they shot out of the LED together, we feel is to see white light, in fact, this is only blue and yellow two colors mixed together in the composite lights.