Dover Markem-Imaje LASER 7031 - Different Lens Type

Pre-Installation Installation Training
A70622-D1
101/192
 Different lens type
7000 series lasers head may be equipped with different lens
depending on the application.
The range of lens is given in the following table :
Note that spot size, energy density and marking fields varies
according to the lens type.
For instance :
1 - For a same range of laser head : if the focale distance increase, then the spot diameter
increase and the peak intensity decrease.
Laser Power (W)
30,0
Laser Power (W)
30,0
Beam Diameter (mm)*
7,0
Beam Diameter (mm)*
7,0
Focal Length (mm)
100,0
Focal Length (mm)
250,0
Spot Diameter (
µ
m)*
231
Spot Diameter (
µ
m)*
578
Peak Intensity (kW/cm
2
)
142,7
Peak Intensity (kW/cm
2
)
22,8
7031 + FD100
7031 + FD250
Laser Power (W)
30,0
Laser Power (W)
30,0
Beam Diameter (mm)*
14,0
Beam Diameter (mm)*
14,0
Focal Length (mm)
150,0
Focal Length (mm)
482,0
Spot Diameter (
µ
m)*
174
Spot Diameter (
µ
m)*
558
Peak Intensity (kW/cm
2
)
253,7
Peak Intensity (kW/cm
2
)
24,6
7031HD + FD150
7031HD + FD482
2- If Head range are differents, the spot diameter and the peak intensity are different for a same
lens.
Laser Power (W)
30,0
Laser Power (W)
30,0
Beam Diameter (mm)*
7,0
Beam Diameter (mm)*
14,0
Focal Length (mm) 300,0 Focal Length (mm) 300,0
Spot Diameter (
µ
m)*
694
Spot Diameter (
µ
m)*
347
Peak Intensity (kW/cm
2
)
15,9
Peak Intensity (kW/cm
2
)
63,4
7031 + FD300
7031HD + FD300
Focal
distance
(mm)
Max.
Marking field
(mm)
75 50x50
100 70x70
150 105x105
175 120x120
200 140x140
225 155x155
250 175x175
300 210x210
360 250X250
400 280X280
482 340X340
600 415X415
720 500X500