Spectroscope is designed to be used to observe the following spectra:
1,Continuous spectrum of the light emits from an incandescent solid and/or liquid matter.
2,Bright line spectrum of the light emits from incandescent metallic vapour or gas under usual atmospheric pressure.
3,Absorption spectrum of white light emits from a source of high temperature when pass through incandescent vapour or gas under lower temperature.
Spectroscope is composed of the following components:
1,A collimator with an adjustable slit, the lens of which has a focus length of 130mm.
2,A telescope contains a Huygens eyepiece with two lenses. The focus length of its objective is 130mm.
3,A scale tube – another collimator which carries a fine photographic scale at one end. The focus length of its lenses is 118mm.
4,An equilateral triangular prism made of flint-glass.
On the tripod is a prism table with a collimator fixed on it at the minimum deviation of the prism. The scale tube can be turned around a fixing screw and the telescope can be moved along the edge of the prism table. Both can be fixed with screws. The prism is mounted at the centre of the prism table by a clamp under a cover.