PROBLEM TO BE SOLVED: To solve such a problem that, in a configuration in which a rotary filter is rotated, an element for detecting a rotation position has to be managed with a strict tolerance.SOLUTION: An irradiation system comprises: a first light source part for emitting a first light a first light guiding member for guiding the first light which is emitted from the first light source part toward a subject a second light source part for emitting a second light of a wavelength region different from that of the first light a second light guiding member for guiding the second light which is emitted from the second light source part toward the subject and a block part for alternately blocking the first light which goes to the first light guiding member from the first light source part and the second light which goes to the second light guiding member from the second light source part.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】回転フィルタを回転させる構成では、回転位置を検知する要素を厳しい公差で管理しなければならない。【解決手段】照射システムを、第一の光を射出する第一の光源部と、第一の光源部より入射される第一の光を被写体に向けて導光する第一の導光部材と、第一の光と波長域の異なる第二の光を射出する第二の光源部と、第二の光源部より入射される第二の光を被写体に向けて導光する第二の導光部材と、第一の光源部から第一の導光部材に向かう第一の光と第二の光源部から第二の導光部材に向かう第二の光を交互に遮蔽する遮蔽部とを備える構成とする。【選択図】図1
