Diffuser

2-1-220

A device used to alter the spatial distribution of a luminous flux and depending essentially on the phenomenon of diffusion.

Note: If all the radiation reflected or transmitted by the diffuser is diffused, it is said to be Completely Diffusing.

Reference: C.I.E. (extract)

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

English