WordNet
light filter
n. a transparent filter that reduces the light (or some wavelengths of the light) passing through it [syn: diffusing screen]
Usage examples of "light filter".
Once Anya, a puzzled expression on her face, finally walked down the aisle and seated herself beside Fydel, Cerryl let the light filter go and allowed himself to be cloaked only by shadows as the rest of the Guild entered the chamber.
Feeling his way along the road, he suddenly saw a twin beam of light filter through the trees on the opposite side of the village square.