True Color Emission Spectra

An optical diffraction grating, a slit diaphragm and a test tube with a fluorescent sample are arranged one behind another on an optical bench. The sample is irradiated with an UV lamp positioned at a 90° angle to the optical bench axis. In the dark room, the distances between the instruments on the optical bench are adjusted so that a sharp image can be seen from a distance of 2-3 cm through the optical grating.

• The true-color fluorescence spectrum of the sample can be seen to the right and left of the central test tube with the fluorescent sample. For all samples, continuous spectra of several colors are obtained. The spectra of different samples differ in the type and proportions of the different colors.