Spectrometer used in experiment

The utility model discloses a spectrometer used in experiments. The spectrometer comprises a collimator, a dial, an objective table, and a telescope. The telescope comprises an objective lens cone and an eyepiece sleeve. The eyepiece sleeve is provided with a reticle. The reticle is provided with crosshairs. The spectrometer is characterized in that grooves are disposed on positions of the crosshairs on the reticle. Lengths of the grooves are the same with lengths of the crosshairs. Widths of the grooves are the same with widths of the crosshairs. A fluorescent material is filled in the grooves. The spectrometer is advantaged in that the grooves which are equal in width and length with original crosshairs are disposed on positions of the original crosshairs on the reticle, and fluorescent powders or fluorescent paint is added in the groove, that is the fluorescent crosshairs formed by the fluorescent powders or the fluorescent paint replace the original crosshairs. When the spectrometer is specifically used,