Definition of night vision in English:

night vision

noun

  • 1[mass noun] The faculty of seeing in the dark, especially when the eyes have become adapted to the low level of light.

    • ‘Laser surgery may also slightly reduce your colour and night vision.’
    • ‘Since cones do not function well in darkness, night vision depends strongly on light picked up by rods.’
    • ‘Red light doesn't disturb most animals, and it also doesn't destroy one's night vision.’
    • ‘Its compounds also help the eyes adapt to bright light and improve night vision.’
    • ‘A bright light within the boat will ruin his night vision.’
    • ‘In addition, some people who opted for surgery have found their night vision has worsened dramatically.’
    • ‘It takes more than 15 minutes to gain night vision inside the pitch black exhibit.’
    • ‘This means that the Cougar has excellent night vision, even though its colour vision is not as good as ours.’
    • ‘Does all this extra glare at eye level reduce a driver's night vision, especially on unlit carriageways?’
    • ‘She avoided looking at the fire, as looking at light would ruin her night vision.’
    • ‘It dawned upon me that they couldn't see me, my night vision was much better than theirs was.’
    • ‘The rods are sensitive to low light and are used mostly for night vision.’
    • ‘The light signals are done with the beam shining below your buddy's line of sight, so as not to ruin his night vision.’
    • ‘I can easily see anything in the distance, and I have pretty good night vision.’
    • ‘She landed in a crouch, her night vision momentarily ruined by the candle's brief light.’
    • ‘My night vision's not great so I had to move closer, maybe I need to eat more carrots or something.’
    • ‘He was in one of the islands of light, it was ruining his night vision and he couldn't see into the darkness.’
    • ‘No doubt living in places such as these proves to be a challenge for one without good night vision.’
    • ‘My night vision is very good and getting better as I blink the film from my eyes.’
    • ‘First signs are blurry vision, especially in bright light, loss of night vision and needing more light to read by.’
    1. 1.1[as modifier] Denoting devices that enable the user to see in the dark:
      ‘night-vision goggles’
      • ‘The footage from the raid, shot not by journalists but by soldiers with night-vision cameras, was fed in real time to the central command in Qatar.’
      • ‘Sight systems with night vision capability or thermal imaging are available.’
      • ‘The infrared components are only visible to those wearing night-vision devices.’
      • ‘The grainy, green-tinted video taken with night-vision lenses showed her to be alert as she lay on the stretcher.’
      • ‘Afghan troops say the insurgents are better equipped, more mobile, and using more sophisticated equipment like night-vision gear and satellite telephones.’
      • ‘Stephens set up night-vision cameras and baited a trap at this construction site with two shiny, new air conditioners.’
      • ‘Close-fitting eye lenses are shaped to improve peripheral vision and are compatible with most optical sighting and night-vision devices.’
      • ‘Airmen ran to unload them by the dim green light of their night vision goggles.’
      • ‘We continue tromping down the dark road, lit only by some houses and our night vision goggles.’
      • ‘It was blackout conditions, meaning no lights; all of us wore night vision goggles to see.’
      • ‘In addition to the Sniperscope and other night-vision devices, the potential of this technology for guidance purposes began to be realized.’
      • ‘Caution: remove batteries from night-vision devices to prevent them from accidentally being switched on during daylight.’
      • ‘Superior night-vision gear that uses infrared sensors will enable U.S. troops to see the enemy but not be seen.’
      • ‘Arleen's head jerked up and she grabbed the high power night vision binoculars sitting on the seat next to her.’
      • ‘And they have a good record of evading the night-vision cameras of the Israeli police.’
      • ‘The other study concerned the impact of night-vision devices on flight.’
      • ‘Their ‘daring’ assault on enemy territory was captured by the military's night-vision camera.’
      • ‘Without air-to-air radar or night-vision devices, finding the tanker was becoming next to impossible.’
      • ‘Many discarded their water bottles, night-vision devices and other useful equipment because this was meant to be a quick, in-and-out daylight mission.’
      • ‘He pulled out a small pair of binoculars that doubled as night vision glasses and headed towards the edge of the rock face.’