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Can you see the beam of a green 5mw laser outdoors at night with fog?

datalooper

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Jan 27, 2020
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I'm building a framed laser harp and would like to keep the power as low as possible to avoid eye damage to users. Is a 5mw green laser diode too weak to have a visible beam if I use a fog machine and place the harp outdoors during the night time? If so, what is the minimum power rating you would recommend?
 



Shakenawake

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Should be visible but not too bright. Depends on the angle it is viewed from too. 90° is least visible and the closer to 0° or 180° you get, the brighter it will appear. Also, laser beams appear brighter when pointed toward you than away. The lasers on such harps terminate on a sensor right? I wouldnt think using a bit stronger lasers would be a problem unless something reflective/refractive is stuck in the beam, redirecting it elsewhere
 

brendon7358

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As long as the beams are contained within the harp as the above post mentioned, I don't see 50mW being an issue and would give a much better experience.
 

andrew6NB

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May 7, 2020
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datalooper, I've trying to see it in those conditions. But it's too hard.
 




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