EOTech Target Pointer Illuminator Aiming Light - Manual (Page 80)

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2.6.2 IR Illuminator. IR Illuminator modes of operation are
selected and activated as described in paragraphs 2.5.1 and
2.5.2 respectively.
2.6.2.1 The IR illumination beam may be varied from flood
to spot by rotating the Illuminator Focus Knob as shown in
Figure 2-36. Direction of rotation, and corresponding beam
size, is marked on the AN/PEQ-2A housing.
Figure 2-36 IR Illuminator Focus Knob
2.6.2.2 When installed over the IR Illuminator, the Diffuser
Lens Cap spreads the laser energy over an angle of
approximately 45 degrees, allowing for illumination of a
wider area. It is most effective when used in conjunction
with the IR Illumination Focus Knob adjusted to the widest
beam (flood) setting. To use the IR Illuminator Diffuser Lens
Cap, stretch it out and over the front of the IR Illuminator so
that it is snug and firmly in place. See Figures 2-34 and 2-
35.
FLOOD
SPOT