5 objective lens and eyepiece, 5 objective lens and eyepiece -9, Figure 2-6. installing the eyecup -9 – EOTech LWTS Light Weapon Thermal Sight User Manual
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2-9
2.5 OBJECTIVE LENS AND EYEPIECE
Objective Lens Cover
When the LWTS is not being used, the objective lens cover
should be pulled down over the objective lens to protect it
and internal imaging components, from possible damage.
The objective lens cover should also be installed when
performing a shutterless calibration of the LWTS (see
section 2.27).
Eyecup
When attached, the eyecup reduces emission of stray light
from the eyepiece. The eyecup should be installed when
using the LWTS as a handheld device or when mounted to a
weapon in a stand-alone configuration.
1. Screw the eyecup onto the eyepiece assembly by turning
clockwise until snug.
2. Rotate the adjustment ring of the eyecup to obtain a
proper eye socket and cheek weld.
Figure 2-6. Installing the Eyecup.
3. Finish screwing the eyecup onto the eyepiece assembly
by turning clockwise until tight.
ADJUSTMENT
RING