Determination And O.d. Of Protection Goggles - Datalogic UniQ 1150-1X41 Product Reference Manual

N.O.H.D. DETERMINATION AND O.D. OF PROTECTION
GOGGLES
In order to determine the characteristics of the protection goggles, it is essential to
determine the characteristics of the radiation, knowing its optical path, the dimensions
of the beam and its divergence.
Source
It is very important to know the real divergence of the laser beam at the output of the F-
Theta scan lens.
With the availability of these optical data, it is possible to calculate the Nominal Ocular
Hazard Distance (N.O.H.D.) and the Optical Density (O.D.) required by the laser radiation
protection filters (goggles).
Below results have been done considering Directive 2006/25/CE on the minimum health
and safety requirements regarding the exposure of workers to risks arising from physical
agents (artificial optical radiation). The user must check if Directive 2006/25/EC was
implemented as a law in his own country and regulate himself accordingly.
Only accidental direct exposure has been considered (exposure time = 10 seconds).
Wavelength
Pulse Energy
Pulse Duration
Beam Diameter (DL)
Working Distance (WD)
Real Divergence after the lens (θ
N.O.H.D.
3
O.D.
1. See Note on page 20
2. Assuming the F-Theta scan lens as reference point
3. Assuming the F-Theta scan lens as reference point, this O.D. is valid for a distance greater of
Beam-Exp
PARAMETER
1
2
0.5 m + WD
N.O.H.D. DETERMINATION AND O.D. OF PROTECTION GOGGLES
Objective
Scanning Head
UNIT
nm
mJ
ns
mm
mm
)
mrad
3
1150-134X
1064
0.82 @ 15 kHz
75
6.25
183
34.15
m 19.10
> 5
PRODUCT REFERENCE GUIDE
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