PROBLEM TO BE SOLVED: To provide a compact UV irradiator for UV sensitivity measurement, which is arranged to be able to perform UV sensitivity measurement with high reliability.SOLUTION: A UV irradiator for UV sensitivity measurement comprises: a light source part which includes a plurality of kinds of LED elements different from each other in light emission center wavelength, and which emits at least one kind of continuous spectrum light of continuous spectrum light in a wavelength range of 290-320 nm, and continuous spectrum light in a wavelength range of 320-400 nm； and a driving part having a control mechanism for driving and controlling the respective LED elements for constituting the light source part independently. Light emitted by the light source part is applied to an irradiation portion in a human skin.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】紫外線感応度測定を高い信頼性によって行うことのできる小型の紫外線感応度測定用紫外線照射器を提供すること。【解決手段】紫外線感応度測定用紫外線照射器は、発光中心波長が互いに異なる複数種類のＬＥＤ素子を具備し、波長２９０～３２０ｎｍの範囲の連続スペクトル光および波長３２０～４００ｎｍの範囲の連続スペクトル光の少なくとも一方の連続スペクトル光を出射する光源部と、当該光源部を構成する当該複数種類のＬＥＤ素子の各々の駆動を独立して制御する制御機構を有する駆動部とを備え、前記光源部からの出射光が、人の皮膚における照射部位に照射されることを特徴とする。【選択図】図１
