Laser Focus Spot Size Calculator
How to find your spot size in mm.
Fill out this form and check the results at bottom.
You may check the lasersource spec sheet for info.
Beam Diameter at Lens (usual
7
mm):
Lens Focal Length [mm]:
F63 (50x50 mm)
F100 (70X70 mm)
F130 (90X90 mm)
F160 C110X110 mm)
F210 (140x140 mm)
F225 (150x150 mm)
F254 (175x175 mm)
F290 (200x200 mm)
F330 (220x220 mm)
Beam Quality (M²):
Wavelength [nm]:
1064 nm (Fiber)
10,600 nm (CO₂)
Beam Diameter at Focus:
—
Depth of Field (DOF):
—
Recommended linespace #1:
—
Recommended linespace #2:
—
for coin depth engraving.