What is the function of a filter?
Filters let pass just specific color parts. They are just transparent for these spectral parts and absorb the residual spectrum. Green and blue color parts of white light will let pass by a cyan colored filter and the red part will filter.
Filters let pass just specific color parts. They are just transparent for these spectral parts and absorb the residual spectrum. Green and blue color parts of white light will let pass by a cyan colored filter and the red part will filter.