Measuring apparatus for spectrometric analysis, other than medical, namely, optical spectroscopic analysis; spectrometers; spectrometry apparatus, namely, optical spectrometers; pulse generators, other than for medical use, for testing electric current; apparatus for measuring optical pulses, fluorescence, photoluminescence; femtosecond apparatus for scientific use, namely, time-resolved or ultrafast fluorescence spectroscopy apparatus; optical lenses; optical mirrors; optical prisms; lasers ...