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  2. AN/PSQ-42 - Wikipedia

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

    Helmet mounted 4x AA-type battery pack. 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 ...

  3. AN/PSQ-20 - Wikipedia

    en.wikipedia.org/wiki/AN/PSQ-20

    1x. The AN/PSQ-20 Enhanced Night Vision Goggle (ENVG) is a third-generation passive monocular night vision device developed for the United States Armed Forces by ITT Exelis. It fuses image-intensifying and thermal-imaging technologies, enabling vision in conditions with very little light. The two methods can be used simultaneously or individually.

  4. AN/PVS-7 - Wikipedia

    en.wikipedia.org/wiki/AN/PVS-7

    2 or 3. The AN/PVS-7 is a single tube biocular night vision device. Third-generation image intensifiers are able to be installed and are standard for military night vision. Most newer PVS-7 intensifier tubes are auto-gated to prevent image intensifier damage if exposed to intense light. The goggles have a built-in infrared Illuminator for low ...

  5. AN/PVS-4 - Wikipedia

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

    AN/PVS-4. AN/PVS-4 (Night Vision Sight, Individual Served Weapon, AN/PVS-4) is the U.S. military designation for a specification of the first second generation passive Night vision device. The AN/PVS-4 first saw widespread use during the Gulf War and later some deployment in the Iraq War and has since been replaced by modern third-generation ...

  6. Night vision - Wikipedia

    en.wikipedia.org/wiki/Night_vision

    Night vision is the ability to see in low-light conditions, either naturally with scotopic vision or through a night-vision device. Night vision requires both sufficient spectral range and sufficient intensity range. Humans have poor night vision compared to many animals such as cats, dogs, foxes and rabbits, in part because the human eye lacks ...

  7. Dinosaur vision - Wikipedia

    en.wikipedia.org/wiki/Dinosaur_vision

    Dinosaur vision. Dinosaur vision was, in general, better than the vision of most other reptiles, although vision varied between dinosaur species. Coelurosaurs, for example, had good stereoscopic or binocular vision, whereas large carnosaurs had poor binocular vision, comparable to that of modern alligators. Recent evidence has also shown that ...

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