Armasight NRWVULCAN239DA1 Vulcan 2.5-5x Gen 3 Alpha MG Night Vision Riflescope - Manual (Page 11)

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2
DESCRIPTION AND DATA
2.1 SYSTEM DESCRIPTION
The Vulcan consists of two primary parts, as shown in Figure 2-1: the night vision device (A; hereafter
referred to as the NVD), and the quick-release mount system (B), or mount. The Vulcan is delivered
already assembled; the mount should be secured to the NVD with two screws.
B
FIGURE 2-1. VULCAN NIGHT VISION RIFLESCOPES
D
A
C
VulCAn 2.5-5x MG VulCAn 3.5-7x MG
E
The optical-electronic system of the NVD includes four main components: the objective lens (C), eye-
piece (D), an intensifier tube, and the control compartment (E).
The intensifier tube (IT) amplifies the environment’s ambient light using a photocathode input lens,
which converts light waves and produces a visible image of the scene on the device’s screen. The image
is projected by the eyepiece.
The automatic brightness adjustment system maintains consistent image brightness, even in changing
light conditions. The Vulcan also incorporates manual gain control, which allows the operator to adjust
the brightness of the image to compensate for overly bright or extremely dark conditions.
The bright light protection system controls existing ambient light through a photoreceiver, and cuts off
the IT automatically when the illumination level exceeds the limit of 100-150lx within 20 seconds. The
Vulcan turns back on when removed from the excessive light.
For optimal contrast, the Vulcan uses an illuminated red cross reticle with adjustable brightness.
The Vulcan is powered by a single AA or CR123A battery. A flashing reticle indicates low battery life.
The Picatinny/ Weaver mount (B) has an adjustable lever-cam clamping device for easy, quick, and reli-
able mounting and removal.