Datalogic Matrix 120 - Page 91

FOV Calculation
Product Reference Guide 77
Figure 58 - Reading Distance References
Example:
The FOV for a Matrix 120 310-xxx at a reading distance of 100 mm is:
FOV
H
= 2 [(100 mm + 8 mm) * tan (41°/2)]  81 mm
FOV
V
= 2 [(100 mm + 8 mm) * tan (32°/2)]  62 mm