Datalogic Matrix 210N - FOV CALCULATION

MATRIX 210N™ REFERENCE MANUAL
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6
6.2 FOV CALCULATION
Use the data in the following table to calculate the FOV for your application, referring to
Figure 75 and the formula below.
Model
Lens Focus Type
d
0
Viewing Angle
Horizontal
Viewing Angle
Vertical
Viewing Angle
Diagonal
Min Reading Distance
mm
Matrix 210 2x5-xxx
7 mm software
14 mm
35°
23°
41°
40
The viewing angle has a tolerance of  1° depending on the reading distance.
FOV
x
= 2 (d + d
0
) tan (
x
/2)
where:
FOV
x
= horizontal, vertical or diagonal FOV

x
= horizontal, vertical or diagonal viewing angles.
d = reading distance (from window surface to code surface)
d
0
= offset (from center of lens to window surface)
Figure 75 – Reading Distance References
Example:
The FOV for a Matrix 210 225-111 at a reading distance of 120 mm is:
FOV
H
= 2 [(120 mm + 14 mm) tan (35°/2)]  85 mm
FOV
V
= 2 [(120 mm + 14 mm) tan (23°/2)]  55 mm
FOV
plane

d
0
d