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The modern industrial sight glass is a glass disk held between two metal frames, which are secured by bolts and gaskets, or the glass disc is fused to the metal frame during manufacture. The glass used for this purpose is either soda lime glass or borosilicate glass , and the metal, usually a type of stainless steel, is chosen for desired ...
Reflector sights for military firearms (usually referred to as reflex sights) took a long time to be adopted. The US House Committee on Armed Services noted as far back as 1975 on the suitability of the use of reflex sight for the M16 rifle , [ 28 ] but the US military did not widely introduce reflector sights until the early 2000s with the ...
Mark III free gun reflector sight mk 9 variant. Another type of optical sight is the reflector (or "reflex") sight, a generally non-magnifying optical device that allows the user to look through a glass element and see a reflection of an illuminated aiming point or some other image superimposed on the field of view. [7]
The day and low-light reticles of the integral reflex sight used on the FN P90 / PS90 USG models. The first suggestion for etched glass reticles was made by Philippe de La Hire in 1700. [5] His method was based on engraving the lines on a glass plate with a diamond point.
Trijicon specializes in self-luminous optics and night sights, mainly using the low-energy tritium illumination, light-gathering fiber optics and battery-powered LED. [ 1 ] [ 2 ] [ 3 ] Additionally, Trijicon is a contractor for the United States military and supplies the Advanced Combat Optical Gunsight (ACOG) and RX01 reflex sights .
Aimpoint is a manufacturing company founded in 1974. [1] Their primary products are reflector (or reflex) sights, specifically the red dot sight sub-type. In 1975 they introduced their first product, [2] the "Aimpoint Electronic" red dot sight, based on a design by Helsingborg engineer John Arne Ingemund Ekstrand. [3]
Vortex Optics is a DBA of Sheltered Wings, Inc., which was incorporated in Wisconsin in 1989. Sheltered Wings, Inc. DBA Vortex Optics began in 2002. In 2022 after extensive research, testing and reviews Vortex became an official supplier and contractor to the American Military as the U.S. Army selected Vortex‘s XM-157 fire control system for its Next Generation Squad Weapon program.
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