Laser Safety FAQ
There is no general value available to determine the actual necessary distance. There are many factors relevant for the actual determination. Please see only a few:
Scanspeed, point rate, scanned pattern, beam divergence, output power of the laser projector, beam diametre at aperture, etc.
Internationally the IEC 60825-1 Laser Safety Regulation applies.
It defines the power of laser class2 in public area as safe for laser shows
If people can walk underneath the mounted laser system, minimum mounting height is 3m (in Germany: 2,7m). Please respect the actual immission in public area to not exceed laser class 3R.!
You may use laser class 4 projectors to do audience scanning shows, as long as the class 2 value is respected in the public area. Please respect your local legal regulations.
Examples for safe laser class4 lasershows:>>> read more >>>