Laser Safety
Personal Protective Equipment - Protective Eyewear
In the case of virtually all laser marking installations, personal protective equipment is limited to the
use of proper eyewear. Protective eyewear must be chosen with regard to the wavelength of the
laser light and, where appropriate, the wavelength of any light emitted from the material surface
during the marking process.
Table 2. Optical Densities for Protective Eyewear for Q-Switched Nd:Yag
L A S E R S F O R M A R K I N G
Laser Type/
Power
Wavelength
(? m)
OD
0.25
seconds
OD
10 seconds
OD for
600 seconds
OD for
30,000 seconds
Nd:YAG
(Q-switch)
b
1.064
a
--- 4.5 5.0 5.4
Zetalase™
10
General Manual SE 1
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