PROBLEM TO BE SOLVED: To provide an irradiation device that can sterilize a head of a user while promoting hair growth of the head of the user.SOLUTION: An irradiation device 100 includes: a light-emitting device 10; and an irradiation part 20 in which the light-emitting device 10 can be arranged so as to irradiate a head of a user with light emitted by the light-emitting device 10. The light-emitting device 10 includes: a light-emitting element 3 emitting light having a peak wavelength in a wavelength range of 360 nm to 430 nm; and a wavelength conversion member 6 for converting light emitted by the light-emitting element 3 into light having a peak wavelength in a wavelength range of 600 nm to 680 nm.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】利用者の頭部における育毛の促進を図りつつ、利用者の頭部を殺菌することができる照射装置を提供する。【解決手段】照射装置100は、発光装置10と、前記発光装置10が発光する光を利用者の頭部に照射するように前記発光装置10を配置可能な照射部20と、を備え、前記発光装置10は、360nm~430nmの波長領域にピーク波長を有する光を発光する発光素子3と、前記発光素子3が発光する光を、600nm~680nmの波長領域にピーク波長を有する光に変換する波長変換部材6と、を備える。【選択図】図1