Reflector sight
Videos
A reflector sight or reflex sight is an optical sight that allows the user to look through a partially reflecting glass element and see an aiming point or some image superimposed on the field of view.
Prototype of the Grubb reflector sight attached to a rifle
German paratrooper looks through the reflector sight of the Flakvisier 40 gunsight on a FlaK 38 anti-aircraft gun (1944), one of the more sophisticated sights at the time
Longitudinal cross-section of a basic reflector sight for pre-WWII German fighter planes (1937 German Revi C12/A)
HUD inside the cockpit of a fighter jet
Collimator sight
Videos
A collimator sight is a type of optical sight that allows the user looking into it to see an illuminated aiming point aligned with the device the sight is attached to, regardless of eye position. They
Reflector sight
…spotlights. Sights such as Telrad's adapted for use and the purpose built Spot Dot allow the spotlight operator to aim the light without turning it on. Collimator sights (also called collimating or "occluded eye gunsight" (OEG) are simply the optical collimator focusing a reticle without any optical window. The viewer…
M4 collimator sight on a M4 mortar