Leica Piper 100 User Manual page 43

Direct intrabeam viewing may be hazardous (low eye hazard level), in particular
for deliberate ocular exposure. The beam may cause dazzle, flash-blindness and
after-images, particularly under low ambient light conditions. The risk of injury for
laser class 3R products is limited because of:
unintentional exposure would rarely reflect worst case conditions of (e.g.)
a)
beam alignment with the pupil, worst case accommodation,
inherent safety margin in the maximum permissible exposure to laser radi-
b)
ation (MPE)
natural aversion behaviour for exposure to bright light for the case of visible
c)
radiation.
Description
Wavelength
Maximum average radiant power
Beam divergence
43 Safety Directions
Value
520 nm
< 5.0 mW cw
0.02 mrad