scope:

The laser power needed to produce effective theatrical or artistic displays in large spaces such as theaters, arenas, or architectural sites is great enough to pose a severe accidental exposure hazard, for even when personnal exposure is very brief. For this reason, subclause 12.4 of IEC 825-1 specifies that lasers that exceed Class 1 or Class 2 should not be used for display purposes except under carefully controlled conditions and under the control of a trained experienced operator. This technical report gives guidance on the planning and design, set-up and conduct of laser displays and shows that use of high power lasers.

This guidance is not intended to include the display or demonstration of scientific, medical or industrial laser products at trade shows, etc. This guidance provides recommendations for safety for those laser displays or demonstrations that are shows, artistic displays or light sculptures or museum pieces used to demonstrate optical principles, etc.