Beam-spot Size & Shape versus Distance

2 January, 2006

Graph paper is 10x10 per inch, 2.54 mm per box.


0 cm
3.2mm x 1.6mm
15 cm
3.6mm x 1.5mm
61 cm
4.1mm x 1.3mm
196 cm
3.6mm x 1.6mm

314 cm
3.3mm x 1.4mm
697 cm
3.4mm x 2.8mm
811 cm
2.7mm x 2.5mm
1173 cm
3.3mm x 3.1mm

1493 cm
1.7mm x 3.5mm
1767 cm
2.0mm x 5.4mm
2352 cm
3.1mm x 6.2mm
2912 cm
4.0mm x 8.5mm

4453 cm
6.0mm x 12.7mm
4453 cm
6.0mm x 12.7mm
5421 cm
8.7mm x 17.1mm
5421 cm
8.7mm x 17.1mm



Beam spots of the violet laser and a green laser pointer at d = 12 meters.