Testing group

Laser module

Laser width at 30 cm (W30)

Laser width at 50 cm (W50)

Laser width at 70 cm (W70)

W30 - W50 (mm)

W50 - W70 (mm)

1

650 nm 100 mW

4.8

3.9

3.2

0.9

0.67

650 nm 30 mW (90˚ lens)

14.2

19.5

24.4

−5.3

−4.9

2

650 nm 30 mW 60˚ lens

17.6

24.9

31.1

−7.3

−6.2

650 nm 30 mW 90˚ lens

14.2

19.5

24.4

−5.3

−4.9

650 nm 30 mW 120˚ lens

13.6

19.6

27.2

−6.0

−7.6

3

405 nm 100 mW

3.6

3.5

3.4

0.1b

0.1b

4

532 nm 50 mW

3.7

3.1

2.4

0.6b

0.7b