Cat vision at Night,....

in #science7 years ago (edited)

All we know all along, cats can see well in the dark. How is it possible to see in dark conditions? Even total darkness? Hey! Previously, was it dark?
Dark is identical with no light. Another dark with black. There is a dark light term, but not for black light.,.



Eigengrau

The dark glow of the cool term is Eigengrau (German for "intrinsic gray"). Also called Eigenlicht ("intrinsic light"), or gray brain, is the color that normal eyes see in total dark conditions. Even though there is no light, there is still an action potential that is sent to the optic nerve, resulting in a uniform dark gray color sensation.
Eigengrau is considered lighter than a black body in normal light conditions, because color contrast is preferred to the vision system rather than absolute brightness. For example, darker skies appear darker than eigengrau because of the color contrast caused by stars.,...

Eigengrau is considered lighter than a black body in normal light conditions, because color contrast is preferred to the vision system rather than absolute brightness. For example, darker skies appear darker than eigengrau because of the color contrast caused by stars.
Yes, eigengrau if his eyes are normal. What about cat eyes? Cat eyes rather "tilt". Not a disorder, but this is a privilege. Precisely in dark conditions, which is seen by the eyes of the cat is a gray color (brighter than eigengrau). Something like this the cat sees at night:

In fact, cats can indeed see in the dark 6 to 8 times better than us, because:..

Partly because they have more rod cell numbers than cone cells. At least this cone cells have less impact when the cat sees during the day and limited to recognize color. To note, stem cells and conical cells are the type of light receiver (photoreceptor) in the retina. Conical cells (latin: konus) contain iodopsin (a photoreceptor cell protein that is the basis of color vision). The function of the cone cells to receive the stimuli of red, blue, and green. Each conical cell contains one of the three pigments. If the retina of the eye has only one pigment or one cone cell it will experience color blindness. People who have only two kinds of cone cells are called dichromates....

Meanwhile, people who have only one kind of cone cells are called monochromates. In monochromate, the colors seen by the eyes are only black and white and gray shadows. Cat eyes dchjo contain all three types of cone cells, but the numdgjber and distribution of each cell is different. As a result, cats can not see the same color as people see in general. There are experts who declare colors that can be seen only blue and yellow cat, there is also a declared only blue and gray.....,

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