A red dot sight is a type of optical aiming device for firearms. A firearm is a kinetic energy weapon that fires either a single or multiple projectiles propelled at high velocity by the gases produced by action of the rapid confined burning of a propellant. ...
A small point of light is reflected off of a lens inside the sight. The shooter looks through the lens, and uses the dot as an aiming point. The lens is usually designed so that the sight is parallax free; thus, the dot will be aligned with the same physical point regardless of the angle at which it is viewed. This makes shooting much faster, as there is no need for a shooter to precisely place his eye behind the sight, as with conventional iron sights. A lens is: a part of the eye an optical device that may be used in a camera or in a telescope; see lens (optics). ... Parallax (Greek: παραλλαγή (parallagé) = alteration) is the change of angular position of two stationary points relative to each other as seen by an observer, due to the motion of said observer. ... With regard to firearms, the term iron sights refers to the open unmagnified sighting system which comes as standard with most weapons. ...
Common light sources used in red dot sights include battery powered lights, fiber optic light collectors, and even tritium capsules. The color of the dot is usually red or amber for visibility against most backgrounds. Some dots are also visible when viewed through night vision devices. Newer red dot sights may use a chevron or triangular light instead of a dot for precision in aiming and range estimation. Fiber Optic strands An optical fiber in American English or fibre in British English is a transparent thin fiber for transmitting light. ... Tritium (symbol T or 3H) is an isotope of hydrogen. ... Night-vision is seeing in the dark. ... This page is about the pattern or symbol called a chevron. ...
Red dot sights are common in speed shooting sports such as IPSC, and are becoming increasingly common in military applications. This new and exciting style of sport shooting had its origins in California in the early 50s. ...
Probably anyone who has ever used a reddotsight has said, "I've got to have one." This page was created to assist you in finding the dotsight that is best for you and your budget.
There are reddot scopes that have optical power, as in traditional riflescopes, and use a reddot or illuminated crosshairs as a sight point.
This enables the sight to be mounted directly to the firearm or a custom made mount, allowing the sight to be applied to applications that may not provide standard mounting options.
Reddotsights use refractive or reflective optics to generate a collimated image of a luminous or reflective reticle.
Newer reddotsights may use a chevron or triangular light instead of a dot for precision in aiming and range estimation.
Since dotsights can be mounted at any distance from the shooter's eye with no issues of focus, military rifle mounts usually place the sight in any mechanically-convenient mounting position, such as the carrying handle of the M16 rifle, or on a rail system (typically a Picatinny rail) on top of the rifle.
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