LUMINAIRE, PROJECTION DEVICE, LENS ARRAY AND OPTICAL MODULE

摘要

PROBLEM TO BE SOLVED: To provide a luminaire capable of achieving uniform lighting without making an optical system configuration complicated.SOLUTION: A luminaire 40 includes: a plurality of first element lenses 43 for condensing entered coherent light; and a field lens 42 for guiding the coherent light which has passed through the plurality of first element lenses respectively into the whole area in a predetermined region. Lens diameters of the plurality of first element lenses differ at least in one part. Out of two first element lenses having different lens diameters from each other, when a lens diameter of one first element lens is defined as d and focal distance is defined as f, a lens diameter of the other first element lens is k×d (k is larger than 0, and a value other than 1), and focal distance is k×f.