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The Holographic Weapon Sight (HWS) developed by
EOTech is widely used by the US Special Forces. HWS is available in
several versions, including Model 510 daylighht sight and 550
day/night vision compatible sight. In the HWS, the aiming reticle is
projected on the display using a holographic pattern, which is
instantly visible in any lighting condition, utilizing a
10,000,000:1 bright to low reticle contrast ratio, regardless of the
shooting angle.
The standard A65-1 aiming reticle's outer diameter
is about the size of a 6 foot target – an average height of an adult
man seen from a distance of 100 meters. Moving out to 200 meters,
the same target will occupy half of the outer ring diameter. This
enables an intuitive range measurement of a man-sized target at
ranges of 100 and 200, up to 400 meters (half radius).
HWS can be used with night vision viewer in tandem
configuration. The sight can be used with both eyes open, improving
peripheral view and situational awareness. Reticles are designed as
large, see-through patterns, efficiently enabling target acquisition
and tracking without obscuring the aim-point. Since the holographic
pattern can be generated even on a fraction of the display surface,
the sight can function even when the display is shattered, or
covered with mud or snow. The flat anti-reflective lens eliminates
any reflective glare signature.
Model 510 is waterproof and submersible up to 3
meter depth. Model 550 is sealed against water up to a depth of 10
meters. A new modification of the HWS sight is the Hollographic
Magnified System (HMS) which uses a dual-purpose reticle
ballistically matched to the NATO 5.56 round. Range estimation is
facilitated by four dots, measuring man-sized targets at range gates
of 0-300, 400, 500 and 600 meters. The brightness settings of the
HMS were relocated to the side of the sight, enabling the attachment
of an X4 magnifying scope for precision fire at extended range. The
sight is powered by two standard AA 1.5 volt batteries which can
last for up to 900 hours (hi-power lithium batteries). To date,
EOTech is gearing for manufacturing of 70,000 sights of which 60,000
are on order for the US Special Operations Command, 6,000 for the
Army and 2,000 for the USMC. |
