The present invention provides a light source system capable of adjusting the specification of the illumination light with a higher degree of freedom and improving the user's convenience even when it is required to obtain high luminance. The light source system 1 of the present invention includes a light source device 10 and a light guide 20 having a plurality of light transmission paths 22 combined with light emitted from the exit surface S5 of the light source device 10, the light source device 10 having the first illumination light concentrated on the exit surface The first lens portion 15a of S5 and the second lens portion 15b that condenses the second irradiation light on the emission surface S5, and the first optical axis A1 and the intersection orthogonal to the first emission surface S1 of the first light-emitting element 14a The angle formed by each of the second optical axes A2 orthogonal to the second emission surface S2 of the second light-emitting elements 14b and the emission optical axis A5 orthogonal to the emission surface S5 is equal to or less than the first angle, and the convergence angle of the first illumination light The condensing angle of the second illuminating light is equal to or less than the second angle, and the values of 1/2 of the first angle and the second angle are respectively smaller than the receiving angles corresponding to the numerical aperture of the optical transmission path 22.本發明提供一種即便於需要獲得高亮度的情形時，亦能以更高的自由度調整照射光的規格且用戶的便利性提高的光源系統。本發明的光源系統1包括光源裝置10、及具有多個光傳送路徑22且結合自光源裝置10的出射面S5出射的光的光導20，光源裝置10具有將第一照射光聚光於出射面S5的第一透鏡部15a、及將第二照射光聚光於出射面S5的第二透鏡部15b，和第一發光元件14a的第一出射面S1正交的第一光軸A1及和第二發光元件14b的第二出射面S2正交的第二光軸A2各自、與和出射面S5正交的出射光軸A5所成的角度為第一角度以下，第一照射光的聚光角度及第二照射光的聚光角度分別為第二角度以下，第一角度、及第二角度的1/2的值分別小於與光傳送路徑22的數值孔徑對應的受光角度。
