20
3.2 IR FILTERS
The Megaray optional accessory kit offers two different infrared filters - the MIR 102 (850 nm)
(Figure 20 - A) and MIR 103 (930 nm) (Figure 20 - B). The MIR 103 filter’s glass is thicker than
that of the MIR 102. The MIR 103 filter also has greater transmission suppression than the MIR
102 filter. Both filters simply clip onto the front of the lens housing to quickly convert the unit into
an effective IR illuminator for covert and special applications. The MIR 102 is a semi - covert filter
and the MIR 103 is a covert filter. The filters can be stowed in the two small pockets on the
battery vest.
MIR 102 MIR 103
Figure 20. IR Filters
Figure 21. Chart of IR Filter Curves
.
Figure 22. Installing IR Filter or Clear Spreading Lens on Lens Housing
A
B
800 900 1000
(nm)
Semi - covert
MIR 102
Covert
MIR 103
