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Leupold & Stevens, Inc. is an American manufacturer of telescopic sights, red dot sights, binoculars, rangefinders, spotting scopes, and eyewear located in Beaverton, Oregon, United States. The company, started in 1907, is on its fifth generation of family ownership.
1901 diagram of a version of Howard Grubb's collimating reflector sight designed to make a compact version suitable for firearms and small devices. Ambient lighting of the reticle was improved by placing it facing up and bouncing it off a relay mirror then off a concave collimating mirror Prototype of the Grubb reflector sight attached to a rifle
The BORS mounted atop a Leupold Mark 4 M1. The computer built into the BORS, constantly updates to account for changing factors. Barrett states that the BORS "instantly takes care of the data work so the shooter can focus on the task of putting lead on target."
A diagram of a typical "red dot" sight using a collimating mirror with a light-emitting diode at its focus that creates a virtual "dot" image at infinity The typical configuration for a red dot sight is a tilted spherical mirror reflector with a red light-emitting diode (LED) at its off axis focus.
The optic has two standard reticles: both are a cross, feature a range finder out to 600 m (656 yd) for 5.56x45 and 800 m (875 yd) for 7.62x51, where they differ is in the bulletdrop design, where the one called CX5395/CX5396 uses circles to denote the range, while the other called CX5455/CX5456 uses lines and also features lines for windage.
Most user guides contain both a written guide and associated images. In the case of computer applications, it is usual to include screenshots of the human-machine interface(s), and hardware manuals often include clear, simplified diagrams. The language used is matched to the intended audience, with jargon kept to a minimum or explained thoroughly.
Steyr AUG A1 with a 417 mm (16.4 in) barrel Steyr AUG A2 with a 417 mm (16.4 in) barrel and a Picatinny rail on the upper receiver in place of the integral optic Steyr AUG A3-CQC prototype with a Leupold CQ/T optic and Surefire M900 weapon light foregrip. The Steyr AUG can also be fitted with either an M203 or AG-C grenade launcher.
The Integrated Helmet and Display Sight System (IHADSS) 30 mm M230 chain gun turret on a Boeing AH-64 Apache being aimed with a helmet-mounted sight A helmet-mounted display (HMD) is a headworn device that uses displays and optics to project imagery and/or symbology to the eyes.