LIMS 2022, the third edition of the scientific workshop LIMS, acronym of ‘Light, Imaging, Microscopy: Spectra of application’, will be organized at ENEA C.R. Frascati (Roma, IT) on 19-20 May, 2022, and will promote exchanges between research institutions, universities, industrial laboratories and small and medium enterprises, at regional level, involved in light-based technologies and projects related to photonics, which should favor cross-fertilization of ideas and contacts, especially for young students. Information on https://www.enea.it/it/seguici/events/lims2022/save-the-date-convegno-lims-2022.