Collection: Dichroic Filter

A dichroic filter is a type of optical filter that selectively transmits light of a certain range of wavelengths while reflecting the other wavelengths. It works by using thin-film interference, which means that the light waves are reinforced or canceled depending on the thickness and number of layers of different materials on a glass substrate. A dichroic filter can produce highly saturated colors from a white light source, and it does not absorb the unwanted light, so it does not heat up as much as other filters.