the elements being filters or photoluminescent elements, reflectors and refractors

Full Title

Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00 (controlling the distribution of the light emitted by adjustment of elements F21V14/00) > Combinations of only three kinds of elements > the elements being filters or photoluminescent elements, reflectors and refractors