Reading Features; Fov Calculation - Datalogic Matrix 320 Product Reference Manual

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CHAPTER 6

READING FEATURES

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
F/#
Matrix 320 14L
6.1*
LQL 9 mm
Matrix 320 14L
6.5
LQL 16 mm
Matrix 320 36L
6.1*
LQL 9 mm
Matrix 320 36L
6.5
LQL 16 mm
* F/# = 6.1 for Red/Blue illumanator. For White illuminator, F/# = 6.5.
The viewing angle has a tolerance of ± 1° depending on the reading distance.
where:
FOV
x
= horizontal, vertical or diagonal viewing angles.
x
d = reading distance (in mm) from window surface to code surface
d
= offset (in mm) from center of lens to external window surface
0
d
Viewing
0
Angle
Offset
Horizontal
(mm)
22
34°
21
20°
37
34°
36
20°
FOV
= horizontal, vertical or diagonal FOV
Viewing
Viewing
Angle
Angle
Vertical
Diagonal
19°
39°
11°
23°
19°
39°
11°
23°
= 2 [ (d + d
) * tan (α
x
0
Min Focus
Max Focus
Distance
Distance
(mm)
(mm)
35
1000
70
1500
35
1000
70
1500
/2) ]
x
PRODUCT REFERENCE GUIDE
91

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