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  2. Telescopic sight - Wikipedia

    en.wikipedia.org/wiki/Telescopic_sight

    Telescopic sights based on image erector lenses (used to present to the user with an upright image) have two planes of focus where a reticle can be placed: at the focal plane between the objective and the image erector lens system (the First Focal Plane (FFP)), or the focal plane between the image erector lens system and the eyepiece (the ...

  3. 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

  4. 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.

  5. Reflector sight - Wikipedia

    en.wikipedia.org/wiki/Reflector_sight

    A view through the Mark III Free Gun Reflector Sight, first produced in 1943, used on British army guns, naval guns, and as a pilot sight and a defensive gun sight on aircraft. The reticle image in this sight is produced by an optical collimator bounced off a beam splitter.

  6. Helmet-mounted display - Wikipedia

    en.wikipedia.org/wiki/Helmet-mounted_display

    The Topsight helmet uses an integral embedded design, and its contoured shape is designed to provide the pilot with a wholly unobstructed field of view. TopNight, a Topsight derivative, is designed specifically for adverse weather and night air to ground operations, employing more complex optics to project infrared imagery overlaid with symbology.

  7. Binoculars - Wikipedia

    en.wikipedia.org/wiki/Binoculars

    Military binoculars can and were also used as measuring and aiming devices, and can feature filters and (illuminated) reticles. [83] [84] Military binoculars of the Cold War era were sometimes fitted with passive sensors that detected active IR emissions, while modern ones usually are fitted with filters blocking laser beams used as weapons.

  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. AN/PSQ-42 - Wikipedia

    en.wikipedia.org/wiki/AN/PSQ-42

    The AN/PSQ-42 Enhanced Night Vision Goggle-Binocular (ENVG-B) is a third-generation passive binocular night vision device developed for the United States Army by L3Harris.It combines dual tube image-intensifying (I²) and thermal-imaging technologies into a single goggle, enabling vision in low-light conditions.