Question

Are my eyes absorbing photons, how do photons work?

Answer 1

Yes. The photons are absorbed by the cone and rod receptors at the back of your eye, causing an electrical signal to be passed to the optic nerve, which is then interpreted by the brain.

Answer 2

The conic receptors take in mostly colors, right? And the rod receptors take in mostly light? Does one photon carry the "information" required for the eye to stimulate both of the receptors?

Answer 3

Or does one of the receptors need some kind of other particle?

Answer 4

I'm not sure what the exact threshold is for color vision in humans, but I'm guessing we need to see millions of photons per second in order to register an image.

In other words, there are enough photons to go around that both types of receptors are typically stimulated.

In low light however, the photons don't reach the conic receptors and there's only enough to stimulate the rod receptors, which is why in low light things often appeared washed out in color or even completely black and white.

Answer 5

Oh ok. Is that why it takes 5 minuites for the rod receptors to get used to light and the conic receptors take 30 miinuites?

Answer 6

That I don't know.

Answer 7

Ok, thank you for all your answers on i think all my questions anyway :)