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ArcticMyst Security by Avery

is it dangerous to look at sandblasted glass illuminated by a green laser?

Joined
Oct 29, 2012
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im a glass artist and i wanted to light one of my sandblasted pieces with a laser but i want to make sure it isnt dangerous to look at first. I have a 5mw 532nm green laser and when pointed at a sandblasted glass object completely illuminates the entire thing with intense green light. the grainy surface bounces the light around to give the illusion its almost moving, but since it will be part of a sculpture that is meant to be looked at i want to make sure it wont damage anyones eyesight. is the laser light diffused enough by the frosted surface that it isnt dangerous? there is no direct beam coming from the piece but the glass itself looks extremely bright, can anybody tell me with any certainty whether or not its safe to look at?
 





Joined
Sep 11, 2011
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I think if it's diffuse with no shiny surfaces it should be fine. Note that 5mW green pointers are usually over 5mW though. A picture would be nice though.
 

Jaseth

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Jan 30, 2009
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Firstly it would be great if you could tell us where you bought the laser. A lot of lasers are called '5mW' just so they can be sold to the US and via ebay, while many of them are actually significantly more powerful.
If it is a verified 5mW it is eye safe to the point that an average blink-reflex will protect your eyes.

I don't know the calculations for diffusion in sandblasted glass, but I highly doubt that even the dot of a 50mW laser would be dangerous to look at on the glass.
 
Joined
Mar 6, 2012
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Yes it is safe to look at. Even with a more powerful laser 20-30mw assuming no chance of reflections! Be sure to upload photos of it! :D
 
Joined
Oct 29, 2012
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thanks for the quick replies, i bought it on amazon for five dollars (i believe the actual seller was millionaccessories) and heres a picture too, although it cant even come close to showing the actual effect, it looks like tv static or a hologram or something
 

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