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NATO Accessory Rail (STANAG 4694) The NATO Accessory Rail (NAR), defined by NATO Standardization Agreement (STANAG) 4694, is a rail interface system standard for mounting accessory equipment such as telescopic sights, tactical lights, laser aiming modules, night vision devices, reflex sights, foregrips, bipods and bayonets to small arms such as rifles and pistols.
The proprietary rail systems use matching slide-in mount fasteners to connect the telescopic sight to the gun. Some proprietary rails also offer the possibility to tilt the sight up to 1° (60 moa; 17.5 mrad) to the left or right. Technical advantages of rail mounting systems are the reliability and robustness of such mounting solutions.
Popular on rifles and shotguns, but not on handguns due to its size. The mounting standard uses four screws and one cross slot acting as a recoil lug. Used on red dot sights such as Aimpoint Micro, Vortex Crossfire, SIG Sauer ROMEO4 & 5, and some Holosun Paralow variants. [15] C-More standard A mounting standard introduced by C-More Sights.
When the hologram plate is illuminated by a laser beam identical to the reference beam which was used to record the hologram, an exact reconstruction of the original object wavefront is obtained. An imaging system (an eye or a camera) located in the reconstructed beam 'sees' exactly the same scene as it would have done when viewing the original.
Laser & Photonics Reviews is a bimonthly peer-reviewed scientific journal covering research on all aspects of optical science.It is published by Wiley-VCH and contains reviews and original papers/letters.
Map of Bourbon Street in New Orleans showing the locations of bollards that had been removed. / Credit: CBS News/Google Earth
As a flurry of possible drone sightings have triggered local politicians to press federal officials for more information, lawmakers have proposed a variety of different methods for dealing with ...
In laser technology, a C mount is a method of packaging a laser diode using an alloy of copper and tungsten (CuW, hence "C mount") as a heatsink for the laser component. Typical wavelengths of laser energy generated by C mount devices are between 680 and 980 nm, and with a typical output power rating of up to 7 watts. [ 1 ]