Appendix D: Window Designs for
HSDL-3003
without vignetting. The maximum
dimensions minimize the effects
of stray light. The minimum size
corresponds to a cone angle of
30° and the maximum size
corresponds to a cone angle of
60°.
To ensure IrDA compliance, some
constraints on the height and
width of the window exist. The
minimum dimensions ensure that
the IrDA cone angles are met
OPAQUE MATERIAL
IR TRANSPARENT WINDOW
Y
X
IR TRANSPARENT WINDOW
OPAQUE MATERIAL
Z
In the figure above, X is the width
of the window, Y is the height of
the window, and Z is the distance
from the HSDL-3003 to the back
of the window. Our simulations
result in the following tables and
graphs.
Module Depth
(Z, mm)
Min Aperture Width
Min Aperture Height
(Y, mm)
(X, mm)
11.45
11.75
12.00
12.50
13.50
15.15
15.65
0.5
1.0
1.5
2.0
3.0
4.0
5.0
4.20
4.45
5.00
5.25
6.30
8.40
9.45
18
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