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About laser beam focusing: focal range, focal spot.

About laser beam focusing: focal range, focal spot.

Some more tests of different laser collimating lens
Keep your laser in focus.

 

3 element lens
Focal range – 49.4 mm (2″)
Focal beam spot ~ 0.156 х 0.046 mm

G2 lens
Focal range 10.5 mm (2/5″)
Focal beam spot 0.134 х 0.052 mm

G7 without an extension spacer
Focal range 64.5 mm (2.5″)
Focal beam spot 0.321 х 0.058 mm (quite big)

G7 with an extension spacer
Focal range 19 mm (3/4″)
Focal beam spot 0.094 х 0.041 mm

G8 without an extension spacer
Focal range 84.1 mm (3.3″)
Focal beam spot 0.442 х 0.052 mm (quite big)

G8 with an extension spacer
Focal range 19.7 mm (3/4″)
Focal beam spot 0.104 х 0.075 mm

 

 

 

All about laser lens pack

Laser lens pack

 

 

Learn more about laser beam focusing

Laser beam focusing. All you need to know how to make the best laser beam focus!

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