First, let's understand why you call that device a 'cyan filter'? Was it invented by the famous Austrian Physicist Professor Cyril Cyan? Is it marketed and distributed in the US by the Cyan Filterwerks? Or is it because when you look at it, it looks the color of cyan? Could that be because whatever color of light enters one side of the filter, the only color of light that's not absorbed by the filter and remains to come out the other side is cyan light? In that case, whenever cyan light is present in the incident light ... like if it's 'white' light ... then the cyan comes out the other side and the filter looks cyan. And if there's no cyan in the incident light, then all of it is absorbed in the dyes in the filter, and the other side of the filter appears very dark, or black.
magenta
The red light is absorbed by the green filter and therefore no light passes through the filter
The reason the filter appears yellow and is called a "yellow filter" is that only yellow light survives the trip through the filter and lives to emerge from the other side. If you don't hit it with yellow light, nothing comes out. If the light hitting the filter is pure blue and nothing else, you'll see no light come out, i.e. black.
A cyan filter will pass green light. In fact, you could pass the light through a cyan filter AND a yellow filter and it would be unchanged.
Red. A primary filter allows only one colour through.
you stupid colour blind its purple man
black because blue light cannot pass through a yellow filter
The red light is absorbed by the green filter and therefore no light passes through the filter
The reason the filter appears yellow and is called a "yellow filter" is that only yellow light survives the trip through the filter and lives to emerge from the other side. If you don't hit it with yellow light, nothing comes out. If the light hitting the filter is pure blue and nothing else, you'll see no light come out, i.e. black.
A cyan filter will pass green light. In fact, you could pass the light through a cyan filter AND a yellow filter and it would be unchanged.
When a yellow book is viewed through a green filter, the filter will absorb most of the yellow light but allow green light to pass through. As a result, the book may appear darker and its yellow color may become less vibrant when viewed through the green filter.
Red. A primary filter allows only one colour through.
Yellow is a primary colour and can not be produced through a blending of any other colours. In terms of light colour, yellow is the product of red and green light blending together.
you stupid colour blind its purple man
Coloured filters are sheets of plastic used to get colour away from white light. They work by letting some of the spectrum through and absorbing other parts of it. For example a red colour filter lets red light and some orange light pass through- it absorbs all other colours of the spectrum From Little miss me9087
Shining a blue light through a cyan filter will result in a blue light shining through. As cyan is a combination of blue and green light, it will allow blue and green light to pass through it. Red light will be absorbed by the filter. This is proven by shining a violet or magenta light through the filter and it allowing blue light will shine through. It is shown as well by shining a yellow light through the filter which will result in green light shining through as both violet and yellow are a combination of red the other two primary colours, blue and green.
green
Nothing comes through. A red light emits no blue light, and a blue filter allows only blue light to pass ... that's why when you look at it, you say to yourself "Hey! That filter looks blue. I'll call it a 'blue filter'."