This happens all the time, sadly. Meanwhile, that physician has no clue about laser safety. "Green-blue lasers are typically considered more dangerous than red-orange lasers because they emit a light [...] to which the human eye is most sensitive". That's totally backwards.
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At visible wavelengths, the only thing that matters is power. Green lasers appear brighter at the same power. Therefore, at the same apparent brightness, a green laser is much safer than a red laser, since it will be much lower power.
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This isn't considering IR leakage from DPSS green lasers though, which is a totally different problem that has nothing to do with the sensitivity of the retina. That just depends on how crappy the laser pointer is.
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Agree with you up to a point, but don’t know whether makers ‘reduce power’ just because’ it’s a green laser. In passing, most reports I’ve seen of misuse in UK relate to lasers being pointed at aircraft.
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Replying to @bofh453 @ChrisDaviesw
Was this just the KTP or the whole cavity? All the green cheapos I've seen recently have a monolithic block with the ND:YVO4 + KTP and cavity mirrors all in one piece. Older models had more discrete components.
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Interesting. I think all the modules I've seen in the past 8 years or so used the monolithic block, but I haven't torn down that many.
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