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2020: Product Offering and Solutions Guide
QUICK REFERENCE GUIDE
Beam Angle Calculation for Spot Size
Distance From 4° Beam Angle 8° Beam Angle 10° Beam Angle 20° Beam Angle
Lens (ft) Diameter (ft) Diameter (ft) Diameter (ft) Diameter
1 0.06 0.14 0.18 0.2
2 0.14 0.28 0.34 0.6
3 0.2 0.42 0.52 1.06
4 0.28 0.56 0.7 1.42
5 0.34 0.7 0.88 1.76
6 0.42 0.84 1.04 2.12
7 0.48 0.98 1.22 2.46
8 0.56 1.12 1.4 2.82
9 0.62 1.26 1.58 3.18
10 0.7 1.4 1.74 3.52
12 0.84 1.68 2.1 4.24
14 0.98 1.96 2.44 4.96
16 1.12 2.24 2.8 5.64
18 1.26 2.52 3.14 6.34
20 1.4 2.8 3.5 7.06
24 1.68 3.36 4.2 8.46
30 2.1 4.2 5.24 10.58
Table 1. An outline of spot size based on the beam angle of a radar device and the distance from the
lens.
18 L&L Process Solutions l 3748 Industrial Park Drive, Mobile, Alabama 36693 l Phone: 1.251.660.8255 l Fax: +1.251.660.0869 l www.llprocesssolutions.com
