Thermal Sight Collimator.
The thermal sight collimator (Figure 3-6) is used to check out and
aline the night sight.
The thermal sight collimator is an electro-
optical system that includes both IR and visible light optics.
Different paths are taken through the unit depending on the source of
energy.
In the IR energy path, the IR energy is emitted from the
heated reticle through the hole in the folding mirror.
It is
reflected by the collimating mirror to the folding mirror and then
goes through the IR window to the night sight.
The thermal sight collimator contains:
Temperature controller assembly.
Shroud.
Temperature controller assembly power cable Wl.
The thermal sight collimator has three functions:
Electronic.
Mechanical.
Optical.
Figure 3-6.
Thermal Sight Collimator.
56
MM4812
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