This visible light irradiator for irradiating the resin-impregnated film material, which is brought into contact with the inner surface of the pipeline under pressure, with light to cure the resin is constituted by connecting a plurality of visible light unit light sources in a lemniscate state. 管路内面に圧接した樹脂含浸被膜材を光線照射で樹脂硬化させるための光線照射装置に関して、可視光線単位光源を連珠状に複数個連結して構成することを特徴とする可視光線照射装置。 - 特許庁