HSDL-3201 View Datasheet(PDF) - HP => Agilent Technologies
Part Name
Description
Manufacturer
HSDL-3201
HP => Agilent Technologies
HSDL-3201 Datasheet PDF : 20 Pages
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17
Window Design
To insure IrDA compliance, some
constraints on the height and
width of the window exist. The
minimum dimensions ensure that
the IrDA cone angles are met
without vignetting. The
maximum dimensions minimize
the effects of stray light. The
minimum size corresponds to a
cone angle of 30 degrees, the
maximum, to a cone angle of 60
degrees.
Minimum and Maximum Window Sizes
Dimensions are in mm.
Depth (Z)
0
1
2
3
4
5
6
7
8
9
10
Y min.
1.70
2.23
2.77
3.31
3.84
4.38
4.91
5.45
5.99
6.52
7.06
X min.
6.80
7.33
7.87
8.41
8.94
9.48
10.01
10.55
11.09
11.62
12.16
Y max.
3.66
4.82
5.97
7.12
8.28
9.43
10.59
11.74
12.90
14.05
15.21
X max.
8.76
9.92
11.07
12.22
13.38
14.53
15.69
16.84
18.00
19.15
20.31
Z
Window Height Y vs. Module Depth Z
Y
X
X is the width of the window, Y is
the height of the window, and Z is
the distance from the HSDL-3201
to the back of the window. The
distance from the center of the
LED lens to the center of the
photodiode lens is 5.1 mm. The
equations for the size of the
window are as follows:
X = 5.1 +2(Z + D) tan θ
Y = 2(Z + D) tan θ
Where θ is the required half
angle for viewing. For the IrDA
minimum, it is 15 degrees, for the
IrDA maximum it is 30 degrees.
(D is the depth of the LED image
inside the part, 3.17 mm). These
equations result in the following
tables and graphs:
16
60° CONE
14
12
10
8
ACCEPTABLE
RANGE
30° CONE
6
4
2
0
0
2
4
6
8
10
MODULE DEPTH Z – mm
Window Width X vs. Module Depth Z
22
20
60° CONE
18
16
14
ACCEPTABLE
12
RANGE
30° CONE
10
8
6
0
2
4
6
8
10
MODULE DEPTH Z – mm
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