Spectrometer optical structure adopting turn-back mirror

The utility model discloses a spectrograph optical structure using a mirror, the spectrograph optical structure using the mirror comprises an optical structure body and a spectrum irradiation device, the optical structure body comprises a pedestal and a housing, the housing is internally provided with a dispersion assembly, the dispersion assembly comprises a receiving chamber and a refractor, and the refractor is arranged in the receiving chamber. The receiving chamber is arranged inside the shell, the reflecting mirror is arranged right below the refractor, and the reflecting surface of the reflecting mirror and the incident surface of the refractor are arranged at an angle of 45 DEG C. According to the utility model, the reflecting mirror and the refractor form a turn-back mirror structure, so that the problem that the collimator and the incident prism angle are on the same line is solved, and the quality of the obtained spectrum is good. 本实用新型公开了一种采用折返镜的光谱仪光学结构，该采用折返镜的光谱仪光学结构，包括光学结构本体与光谱照射，所述光学结构本体包括底座和外壳