Blinded by the (White Laser) Light

In the last few years, entertainment lighting manufacturers have introduced several automated lights with an LED laser source, like the Claypaky Xtylos and Skylos, Ayrton Cobra, Robe iBolt, Neptune BX, and Adam Hall Cameo Oron H2, and they are incredibly bright. You might not know it, but those laser sources have roots going back to fluorescent lights, those ugly, green-looking, migraine-inducing troffer lights that used to be in every commercial building, the same ones that you hated since primary school.

Those old-school fluorescent tubes worked by creating a long arc of blue light inside a long glass tube, coated with phosphor. The arc excited the phosphor and caused it to emit light by a process known as phosphor down conversion.

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