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  2. Telescopic sight - Wikipedia

    en.wikipedia.org/wiki/Telescopic_sight

    A reticle that is too bright will cause glare in the operator's eye, interfering with their ability to see in low-light conditions. This is because the pupil of the human eye closes quickly upon receiving any source of light. Most illuminated reticles provide adjustable brightness settings to adjust the reticle precisely to the ambient light.

  3. Reticle - Wikipedia

    en.wikipedia.org/wiki/Reticle

    Collimated reticles are created using refractive or reflective optical collimators to generate a collimated image of an illuminated or reflective reticle. These types of sights are used on surveying/triangulating equipment, to aid celestial telescope aiming, and as sights on firearms .

  4. Reflector sight - Wikipedia

    en.wikipedia.org/wiki/Reflector_sight

    Using an LED as a reticle is an innovation that greatly improves the reliability and general usefulness of the sight: there is no need for other optical elements to focus light behind a reticle; the mirror can use a dichroic coating to reflect just the red spectrum, passing through most other light; and the LED itself is solid state and ...

  5. Advanced Combat Optical Gunsight - Wikipedia

    en.wikipedia.org/wiki/Advanced_Combat_Optical...

    ACOG reticles are illuminated at night by an internal tritium phosphor. Some versions have an additional daytime reticle illumination via a passive external fiberoptic light pipe or are LED-illuminated using a dry battery. The first ACOG model, known as the TA01, was released in 1987. [2] Down-range ACOG sight picture

  6. Red dot sight - Wikipedia

    en.wikipedia.org/wiki/Red_dot_sight

    A red dot sight is a common classification [1] for a non-magnifying reflector (or reflex) sight that provides an illuminated red dot to the user as a point of aim. A standard design uses a red light-emitting diode (LED) at the focus of collimating optics , which generates a dot-style illuminated reticle that stays in alignment with the firearm ...

  7. AN/PVS-4 - Wikipedia

    en.wikipedia.org/wiki/AN/PVS-4

    The Stinger reticle is very different in that it is a rear-mounted illuminated reticle -the reticle is built into the tube and positioned on top of the screen so both the screen and reticle are in focus. It also allows red-on-green illumination which makes the reticle stand out.

  8. Gyro gunsight - Wikipedia

    en.wikipedia.org/wiki/Gyro_gunsight

    To set range the dial adjusts the reticle size to match target wingspan. Currently set to the Junkers Ju 88 , it ranged in size from the large Fw 200 Condor to the small Messerschmitt Bf 109 . A gyro gunsight (G.G.S.) is a modification of the non-magnifying reflector sight in which target lead (the amount of aim-off in front of a moving target ...

  9. SUIT (sight) - Wikipedia

    en.wikipedia.org/wiki/SUIT_(sight)

    The reticle of the SUIT sight is of unusual design. Unlike the traditional crosshair layouts commonly used, which are in essence a cross intersecting the target, the SUIT has a single obelisk-shaped post protruding from the top edge of the sight so as not to obscure the target. The reticle is tritium-illuminated for low-light condition aiming.