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 |