Crossed Laser Sighting; Scope Sighting - RayTek 3i 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.
Crossed Laser
0
Focus Point
0.3 in @ 24 in
Focus Point
8 mm @ 610 mm
0
Figure 2-16: Crossed Laser and IR Spot 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.
2-32
Focus Point D:S = 75:1
DISTANCE: SENSOR TO OBJECT (in)
24 36 60
610 1000 1500
DISTANCE: SENSOR TO OBJECT (mm)
Figure 2-17: Scope Sighting
Far Field D:S = 20:1
120
3000
Raynger 3i Series Operator's Manual
180
12
9
6
3
0
75
150
225
300
5000