How do we see anything white?

Question

It means that which combination of certain pigments give the colour as white.

Answer 1

im getting 2 points it is white and when u'll give me 10 points then it'll become even more white ;)

Answer 2

When we see light we perceive as 'white', it means it stimulates the red-, green-, and blue-sensitive cones equally (which leads to a neutral hue) and strongly (which we perceive as 'bright').

Our eyes are sensitive to colour due to these three types of cones. Our brains have to interpret the signals coming from these receptor cells in our eyes. So, if the light is strong we perceive the colour as bright. If one colour, say blue, is brighter than red and green, the colour will look bluer. If the same colour is darker than the other two, the colour will shift to the complimentary; in this example it will become more yellowish. This change from greys to strong colours is referred to as 'colour saturation'.

Notice that I have not spoken about inks, paints or pigments at all yet. That's because they behave differently. Our eyes detect light in an 'additive colour' sense; they detect the green light and add that to the red light and add that to the blue light. Pigments take white light and *subtract* colours from it. The colour removed from the white light is the complimentary colour of the colour we see. So, yellow paint absorbs blue light and reflects yellow and green. Red paint absorbs green and blue, and reflects red. Grey, white or black paints reflect the visual spectrum evenly.

If you take white paint and add coloured paints to it, the subtractive effects of the paint you add will cause the paint to get darker and darker. You *cannot* take dark paint and make it lighter, except by diluting it in more white paint. Thus, you can only make white paint from white pigments such as titanium dioxide.

One last note: you would expect from colour theory that using three inks that are the compliment of the additive primaries, that is cyan, magenta and yellow inks (which are called 'subtractive primaries') could give you full colour printing. Well, it can... almost. Since it's not possible to make a cyan ink or magenta ink that is bright enough, the edn result is a muddy brown instead of black. Colour printing uses a black ink to deepen the shadows, resulting in four-colour process printing, also known as 'CMYK colour'.

Answer 3

The only known pigment that gives you White without killing you is Titanium Oxide....Lead was once used but people died from the lead poisoning.

You were asking about pigments and not light spectrum stuff right?

Answer 4

Tour eyes have 4 types of sensors in them One type called rods sees in only black and white and is used by the in low light situations at night. At night or low light, we cannot see in colour. If the light is bright enough or in daylight, we see with the others which are called cones. There are three types which respond to different pats of the spectrum, red, green and blue. If only blue light hits the cones, only the blue cones react so we see "blue" in the light. If other cones react we see other shades of colours. If all cones react we see it as white, but they must react to a certain balance of RGB (pure white) or else we would see it as white with a cast or tint.

Answer 5

Titanium dioxide is the commonly used white pigment.

But for lithgraphic and some inkjet printing, the dyes are transparent and work by colour subtraction (they are cyan, magenta and yellow not red, green and blue) and here the white you see is the white of the page.

Answer 6

White light is all the colors of the rainbow mixed up so when you see white you are seeing all the colors. Try getting gels in cyan red and green and if you mix them all you get white. The opposite is true for paints all the colors will make black.

Answer 7

White is all colors and black is no color. Try this: Take a piece of poster boad. Cut a med. size circle out of it. draw 6-8 "slices" on it. Color each slice a different color. Then repeat on the other side. punch two holes in the midle. Put a string through one hole, then up through the other. Then tie the string together. Then spin the "button" as quickly as you can. And see what happens.

Answer 8

We see color based on the amount/frequency of light energy waves that are absorbed/reflected from an object. Our eyes then translate that perception into electrochemical signals for our brain to see. White is the reflection of almost all/wide bandwidth.

Answer 9

The base for all colors is either white or black.
Nature then adds a hue, such as green and adds to white.
And so on. Remove all of the colors as we know then, and
you are left with white & black.

Answer 10

OK this is gonna sound kinda confusing so I'm going to break it down piece by piece.

The objects we see, absorb ALL the colors of the spectrum EXCEPT the color we see.

This color- a red ball as an example- absorbs all colors EXCEPT red, which is reflected off the ball.

The color "black" is an object that reflects ALL colors of the spectrum.

The color "White" is an ABSENCE of color.

Answer 11

Think of a prism. White light goes in, the colors of the light are seperated so you can see the spectrum.