Why do we see colours the way we do?

Question

How do the eyes work out what colours we see, is it by the shape of our eyes??

Answer 1

It's to do with the light. I remember studying this in school, It's quite complex, i'll try and explain...

Light - Refraction - Colour.

A glass prism of angle 60 degrees can disperse white light
into its different colours (called a spectrum).

The seven colours of light are
Red, Orange, Yellow, Green, Blue, Indigo and violet.
You can remember the colours and order by remembering
Richard of York gave battle in vain.

Different colours of light have each a different frequency and wavelength.
The different colours are refracted by different amounts.

Red light has the longest wavelength and is refracted least.
Violet light has the shortest wavelength and is refracted most.

"We see colour with the sensors in the retina of the eye called rods and cones. The rods are sensitive to low light and the cones, which require a greater intensity of light, are sensitive to colour. The message is passed to the optic nerve and then on to the brain.

When we observe a colour that has a wavelength between that of the primary colours red, green and blue, combinations of the cones are stimulated. An example could be that yellow light stimulates cones that are sensitive to red and to green light. The result is that we can detect light of all colours in the visible spectrum." -

When you get two primary colours together they mix to make a secondary colour:
Red and Blue- Magenta.
Green and Red- Yellow.
Green and Blue: Aqua/Cyan

If there is no light on an object it is seen as black.

The source of light may also emit infra-red and ultraviolet light.
Infra-red light is heat radiation with a longer wavelength than red light.
A thermometer placed at IR will show a rise in temperature.
Ultraviolet light has a shorter wavelength than violet light.
A fluorescent material will glow when placed at UV.

Ok, well, I hope some of that made sense, Oo I only skimmed it through.

Answer 2

Colour is nothing to do with shape. There are light receptors called cones. There are millions of these in the eye. There are three types for the primary colours red, green and blue. Together they can work out all the other colours that we see.

Answer 3

The human eye and brain together translate light into color. Light receptors within the eye transmit messages to the brain, which produces the familiar sensations of color.

Answer 4

Primary colors are Red, Yellow, and Blue, and an objects color is depicted by which color frequency is being rejected. If you have a yellow basket, the basket is soaking up all other color frequencies except yellow, which in turn bounces off the object and in to the receptors in our eyes telling our minds it is "Yellow"

Answer 5

colour, gray, mom - in simple terms how i replaced into taught. In grade college we had "colour" on the spelling attempt. mom had a e book not from right here and that they spelled it shade - so on the attempt that's the way I spelled it - and have been given it incorrect. not honest I say.