Provided is a light emitter with which it is possible to take emitted light to the outside with high efficiency and to ensure a sufficient light-emitting area. A light emitter (10) is characterized by including a translucent substrate (11) that has a first and a second surface, an uneven structural layer (12) that has an uneven pattern, a first electrode layer (13), an organic light-emitting layer (14) that has a light-emitting part, a second electrode layer (15), and a lens member (16) that has a diameter of D1; the uneven structural layer, the first electrode layer, the organic light-emitting layer, and the second electrode layer forming a layered body in the stated order from the first surface of the substrate; the uneven pattern being close to the first electrode layer of the uneven structural layer; the substrate having the lens member on the second surface; the light-emitting part comprising a layer-shaped region of diameter D2 in the organic light-emitting layer sandwiched between the first and the second electrode layer; the light-emitting part being concentric with the lens member; and the ratio between the diameter D2 of the light-emitting part and the diameter D1 of the lens member being 0.7