Product Reference Guide 93
Chapter 6
Reading Features
FOV Calculation
Use the data in the following table to calculate the FOV for your application,
referring to Figure 68 and the formula below.
Model
Lens Focus
Type
d
0
View Angle
Horizontal
View Angle
Vertical
View Angle
Diagonal
Min. Read-
ing Distance
Matrix 300N
4x1-0xx
6 mm
manual
7 mm 66° 55° 80° 35 mm
Matrix 300N
4x2-0xx
9 mm
software
14 mm 40° 32° 50° 22 mm
Matrix 300N
4x3-0xx
9 mm
manual
11 mm 41° 34° 52° 70 mm
Matrix 300N
4x4-0xx
12 mm
manual
4 mm 32° 26° 40° 70 mm
Matrix 300N
4x5-0xx
16 mm
manual
5 mm 24° 19° 30° 80 mm
Matrix 300N
7x2-0xx
9 mm
software
18 mm 45° 34° 54° 30 mm
Matrix 300N
7x6-0xx
16 mm
software
14 mm 25° 19° 31° 50 mm
The viewing angle has a toler
ance 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 (in mm) from window surface to code surface
d
0
= offset (in mm) from center of lens to external window surface
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