RayTek 3i - Manual (Page 44)

2-32 Raynger 3i Series Operator’s Manual
2.7.3 Crossed Laser Sighting
The distance at which the two laser dots overlap is the point where the smallest area
is measured (Focus Point). To find this distance, aim the unit at the target and move
closer or farther until the laser beams overlap. Refer to Figure 2-16 for a comparison
of the IR spot and laser beam diameters.
2.7.4 Scope Sighting
Scope sighting models (Figure 2-17) have parallax-free sighting (at the focus distance).
Look through the scope. There are one or two circular reticles, depending on model.
The inner reticle indicates the area that is measured at the focus point (see Appendix
A for the focus point distance for your model). The outer reticle indicates an area
greater than or equal to the area that is measured at all other distances.
0
0 610
3
0
6
9
12
300
225
150
75
24 36 60 120 180
1000 1500 3000 5000
SPOT DIA. (in)
SPOT DIA. (mm)
DISTANCE: SENSOR TO OBJECT (mm)
DISTANCE: SENSOR TO OBJECT (in)
Crossed Laser Focus Point D:S = 75:1 Far Field D:S = 20:1
Focus Point
0.3 in @ 24 in
Focus Point
8 mm @ 610 mm
Figure 2-16: Crossed Laser and IR Spot Diameters
Figure 2-17: Scope Sighting