Automatic focusing spectrometer

The invention provides an automatic focusing spectrometer. The automatic focusing spectrometer comprises a grating element used for splitting light; an imaging element for converging the light beam; the controller is used for moving the imaging element to realize automatic focusing and is connected with the imaging element; and a detector; the incident light is diffracted to the imaging element through the grating and then is converged to the detector through the imaging element so as to obtain spectrum information. According to the invention, the position of the imaging element can be automatically adjusted according to the configuration and operation state of the spectrometer, so that the spectrometer is automatically kept at the optimal imaging position, and the best performance of the spectrometer is exerted. 本发明提供一种自动对焦的光谱仪，包括：用于分光的光栅元件；用于会聚光束的成像元件；用于移动所述成像元件以实现自动对焦的控制器，与所述成像元件连接；以及探测器；所述入射光经所述光栅衍射至成像元件后，再经所述成像元件会聚到所述探测器以得到光谱图谱信息。本发明可根据谱仪的配置和运行状态自动调整成像元件的位置，使谱仪自动保持在最佳的成像位置处，发挥出谱仪最好的性能。