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:
a
)
unintentional exposure would rarely reflect worst case conditions of (e.g.) beam alignment
with the pupil, worst case accommodation,
b
)
inherent safety margin in the maximum permissible exposure to laser radiation (MPE)
c
)
natural aversion behaviour for exposure to bright light for the case of visible radiation.
Description
Value (A5/A10)
Wavelength
658 nm
Maximum average radiant power
4.8 mW
Pulse duration
800 ps
Pulse repetition frequency (PRF)
100 MHz
Beam divergence
0.2 mrad x
0.3 mrad
NOHD (Nominal Ocular Hazard Distance) @ 0.25s
44 m
CAUTION
Class 3R laser products
From a safety perspective, class 3R laser products should be treated as potentially hazardous.
Precautions:
▶
Prevent direct eye exposure to the beam.
▶
Do not direct the beam at other people.
CAUTION
Reflected beams aimed at reflecting surfaces
Potential hazards are not only related to direct beams but also to reflected beams aimed at
reflecting surfaces such as prisms, windows, mirrors, metallic surfaces, etc.
Precautions:
▶
Do not aim at areas that are essentially reflective, such as a mirror, or which could emit
unwanted reflections.
▶
Do not look through or beside the optical sight at prisms or reflecting objects when the
laser is switched on, in laser pointer or distance measurement mode. Aiming at prisms is
only permitted when looking through the telescope.
9827_002
Labelling
Safety Directions
13
