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  2. Adaptation (eye) - Wikipedia

    en.wikipedia.org/wiki/Adaptation_(eye)

    Night vision is of lower quality than day vision because it is limited in resolution and colors cannot be discerned; only shades of gray are seen. [1] In order for humans to transition from day to night vision they must undergo a dark adaptation period of up to two hours [ 2 ] in which each eye adjusts from a high to a low luminescence "setting ...

  3. FG 1250 - Wikipedia

    en.wikipedia.org/wiki/FG_1250

    The FG 1250 or Fahr- und Zielgerät FG 1250 (driving and aiming device FG 1250) was a German active infrared night-vision device mounted on tanks and other armored vehicles. It was developed by Ing Gaertner of the German optics company Carl Zeiss AG beginning in 1941. [1]

  4. Night-vision device - Wikipedia

    en.wikipedia.org/wiki/Night-vision_device

    The effect on the natural night vision of the eye is evident A standard telescopic sight augmented with a night-vision device in front on the M110. Note that in addition to the image intensifier, the NVD gathers much more light by its much larger aperture A 1PN51-2 night-vision reticle with markings for range estimation First-person view ...

  5. 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.

  6. Night vision - Wikipedia

    en.wikipedia.org/wiki/Night_vision

    A specific type of NVD, the night vision goggle (NVG) is a night vision device with dual eyepieces. The device can utilize either one intensifier tube with the same image sent to both eyes, or a separate image intensifier tube for each eye. Night vision goggles combined with magnification lenses constitutes night vision binoculars.

  7. Zielgerät 1229 - Wikipedia

    en.wikipedia.org/wiki/Zielgerät_1229

    The ZG 1229 Vampir weighed 2.26 kilograms (5.0 lb) and was fitted with lugs on the StG 44 at C.G. Haenel in Suhl, the weapons production facility.As well as the sight and infrared spotlight, there was a wooden-cased battery for the light weighing 13.59 kilograms (30.0 lb), and a second battery fitted inside a gas mask container to power the image converter.

  8. AN/PVS-5 - Wikipedia

    en.wikipedia.org/wiki/AN/PVS-5

    The AN/PVS-5 is based on the SU-50 which was a first-generation night-vision goggle adapted by the United States Air Force in 1971. From 1972 until 1990 the AN/PVS-5 was the mainstay in US Army night vision for aviation. The AN/PVS-5C was not approved for flight because of its high-light cut off feature causing the goggle to shut off in bright ...

  9. 1PN51 - Wikipedia

    en.wikipedia.org/wiki/1PN51

    The light intensifier is powered by a pack of 5 D-0,55S (Russian: Д-0,55С) rechargeable cells, providing up to 7 V. The scope requires 6.25 V. The maximum current drawn is 40 mA. [citation needed] The D-0,55S battery pack is used by a range of devices including 1PN51-2 and 1PN58 and has a separate charging device. The charging device has a ...