| Holographic weapons sights have become
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| | left or right, the sight is
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| increasingly popular with shooters, as
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| | reconstructing the view instantly. OK,
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| they give the shooter the ability to
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| | you say, but how does the reticle move
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| quickly lock in on target, even if the
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| | and stay on target? The reticle is
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| shooter's head position is not aligned
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| | actually a laser beam that's being
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| with the sight. With a conventional
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| | projected onto that same clear window
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| optical scope, a shooter must have his
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| | within the sight. A reticle mask defines
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| eye aligned with the scope in order to
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| | the shape of the reticle. The mask may be
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| place the reticle over the target. If the
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| | a dot, a triangle, a circle, or whatever
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| shooter's head isn't perfectly aligned,
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| | other shape the manufacturer offers. When
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| the scope's reticle isn't pointing to the
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| | the holographic sight is attached to the
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| same spot on the target as the gun. With
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| | gun, the laser beam is projected along
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| a holographic ("holo") sight, the reticle
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| | the same axis as the gun. Thus, when you
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| is always on the spot on the target where
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| | move the muzzle of the gun to the left,
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| the weapon is pointed. Move the gun left
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| | the projected reticle image on the clear
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| or right, and the reticle moves as well,
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| | window moves to the left on the same
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| but is still on the point of aim. How is
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| | axis. Up, down, left, right: the reticle
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| this possible? Unlike the view you see
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| | image is always following the direction
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| through a conventional scope, what you
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| | of the muzzle. So, when you look through
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| are seeing through a holographic sight is
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| | a holographic sight, you're actually
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| not real. It's a reconstruction of the
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| | seeing two things: the projected view of
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| view. What's more, the reticle that you
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| | the target area, which changes as you
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| see is not actually in the sight, but is
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| | move the sight; and the projected
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| a projection of a reticle image. Before
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| | reticle, which moves along with the axis
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| you start scratching your head, think
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| | of the gun. The result of this
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| about watching a movie. The movie camera
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| | combination is that, as long as you can
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| has recorded the the light reflected from
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| | see the view of the target area through
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| the objects in a scene onto film. When
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| | the sight, and as long as you can see the
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| the film is projected onto a movie
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| | reticle, you can get your gun on target.
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| screen, you see the scene that was
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| | The laser reticle is essentially
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| originally recorded. The process of
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| | performing the same function as a laser
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| holography involves reconstructing the
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| | sight, except that the laser is projected
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| light waves that are reflected from an
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| | onto the clear window, and not onto the
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| object. What we commonly call "light" is
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| | target itself. This offers several
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| a spectrum of waves. The holographic
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| | advantages, one of which is that the
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| sight encodes the wave patterns reflected
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| | laser beam is not visible to anyone but
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| from the view of the target area, and
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| | the shooter. Another advantage is that
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| projects these wave patterns onto a clear
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| | most holographic sights allow the user to
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| window within the sight. The projected
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| | vary the brightness level of the laser
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| wave patterns are then illuminated by a
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| | reticle, while the dots from laser sights
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| laser, which reconstructs the wave
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| | may be hard to see on the target in
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| patterns. The result is a
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| | bright sunlight. With advances in
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| three-dimensional image of the view of
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| | technology, holographic sites have become
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| the target area. Unlike a film, though,
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| | more compact and more affordable, thus
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| the holo sight is recording and then
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| | leading to their increased popularity
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| projecting the light waves in real time
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| | with the shooting community.
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| onto the clear window within the sight.
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| | Richard A.
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| As you move your sight up or down, or
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