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They're misunderstanding how it works. The laser is infrared. It just so happens that some blue pigments also strongly reflect IR.
What wavelength of IR are you referring to for such a laser? Far IR doesn't give a shit about blue pigments. Also the wavelength would identify the type of laser so that would likely make most IR lasers completely impractical in such a scenario.
>They're misunderstanding how it works. The laser is infrared. It just so happens that some blue pigments also strongly reflect IR.
What wavelength of IR are you referring to for such a laser? Far IR doesn't give a shit about blue pigments. Also the wavelength would identify the type of laser so that would likely make most IR lasers completely impractical in such a scenario.
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