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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. 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 .

  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. Visual perception - Wikipedia

    en.wikipedia.org/wiki/Visual_perception

    Visual perception is the ability to interpret the surrounding environment through photopic vision (daytime vision), color vision, scotopic vision (night vision), and mesopic vision (twilight vision), using light in the visible spectrum reflected by objects in the environment.

  6. Scotopic vision - Wikipedia

    en.wikipedia.org/wiki/Scotopic_vision

    Mesopic vision occurs in intermediate lighting conditions (luminance level 10 −3 to 10 0.5 cd/m 2) [citation needed] and is effectively a combination of scotopic and photopic vision. This gives inaccurate visual acuity and color discrimination. In normal light (luminance level 10 to 10 8 cd/m 2), the vision of cone cells dominates and is ...

  7. Even With 20/20 Vision, I Wear These Glasses Every Day - AOL

    www.aol.com/lifestyle/even-20-20-vision-wear...

    Even With 20/20 Vision, I Wear These Glasses Every Day. Trishna Rikhy. June 21, 2023 at 8:00 AM ... The blue light of my screens leaves me fatigued, even when all my devices are set into Night ...

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