Basics of Laser Safety – Laser Hazard Evaluation - Quiz

Filters used in eyewear and viewing windows must be rated with the proper:

A filter rated with an optical density of 2 means the amount of laser radiation that will be transmitted at the specified wavelength is:

What Optical Density is required for typical high-power industrial lasers?

The Diffuse Reflection Nominal Hazard Zone (NHZ) is:

The distance an unprotected eye must be away from the point where the laser beam hits a diffuse reflector (a rough surface)
The distance you have to back up to be safe if the main beam of the laser is directed at you
The distance you have to back up if the beam passing through a focusing lens is directed at you
The distance you must back away from the point where the beam hits a mirror
The distance beyond which your laser safety eyewear will protect you.

Intrabeam Nominal Hazard Zones are usually

Basics of Laser Safety – Laser Hazard Evaluation – Quiz