Safety Precautions – Laser

There is a risk of injury through dazzling the eyes when working with the laser. Therefore regard the following:

  • Do not direct the laser beam towards persons, doors or windows.
  • Never look directly into the laser beam.
  • Ensure proper room illumination.
  • Avoid trip hazards.
  • Secure mechanical parts from falling over or becoming loose.

 

Laser class 1M

The available laser radiation is within a wavelength range between 302.5 nm and 4,000 nm. In this spectral range the most frequently used materials in optical instruments are almost transparent. The accessible laser radiation is not dangerous to eyes as long as the beam cross section is not reduced by optical instruments (e.g. telescopes).

Laser class 2

The accessible laser radiation lies in the visible spectral range (from 400 to 700 nm). If the exposure is brief (up to 0.25 s), it is eye-safe. The radiation outside the wavelength range from 400 to 700 nm fulfills the conditions for class 1. For extended or diffuse sources, a correction factor can be used.