WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
Nature The World Movies USA Top Art Fine & Rare History Ivy & Inquiry
Tapetum lucidum
Videos
The tapetum lucidum is a layer of tissue in the eye of many vertebrates and some other animals. Lying immediately behind the retina, it is a retroreflector. It reflects visible light back through the
The dark blue, teal, and gold tapetum lucidum from the eye of a cow
The dark blue, teal, and gold tapetum lucidum from the eye of a cow
Choroid dissected from a calf's eye, tapetum lucidum appearing iridescent blue
Choroid dissected from a calf's eye, tapetum lucidum appearing iridescent blue
Reflection of camera flash from the tapetum lucidum
Reflection of camera flash from the tapetum lucidum
A three-month-old black Labrador puppy with apparent eyeshine
A three-month-old black Labrador puppy with apparent eyeshine
Night vision
Videos
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
Tapetum lucidum
…retina, increasing the light available to the photoreceptors (although slightly blurring the image). The tapetum lucidum contributes to the superior night vision of some animals. Many of these animals are nocturnal, especially carnivores, while others are deep-sea animals. Similar adaptations occur in some species…
Two American soldiers pictured during the 2003 invasion of Iraq seen through an image intensifier.
Two American soldiers pictured during the 2003 invasion of Iraq seen through an image intensifier.
The pupil of the eye dilates in the dark to enhance night vision. Shown here is a pupil of an adult naturally dilated to 9 mm in diameter in mesopic l
The pupil of the eye dilates in the dark to enhance night vision. Shown here is a pupil of an adult naturally dilated to 9 mm in diameter in mesopic light levels. The average human eye is not able to dilate to this extent without the use of mydriatics.
USMC M3 Sniperscope assembled on a M3 Carbine. Introduced during the Korean War, it was an early active infrared night vision equipment powered by a l
USMC M3 Sniperscope assembled on a M3 Carbine. Introduced during the Korean War, it was an early active infrared night vision equipment powered by a large 12 volt battery that was carried in a rubberized canvas backpack.
An M60 tank with an infrared searchlight mounted on the cannon.
An M60 tank with an infrared searchlight mounted on the cannon.