Colour filter and Light filter

Light filter and colour filter are semantically related in color filter topic. In some cases you can use "Light filter" instead a noun "Colour filter", when it comes to topics like optical filter.

Light filter noun - A transparent filter that reduces the light (or some wavelengths of the light) passing through it.

Colour filter and light filter are semantically related in color filter topic. You can use "Colour filter" instead a noun phrase "Light filter", if it concerns topics such as optical filter.