Street Spectra is a citizen science project to map and characterize public lighting sources. Volunteers use a low cost diffraction grating on top of their smartphones’ camera to take pictures of the street lamps and their emission spectra. The creation of the project has been motivated by the global switch out of the older street lighting to new LEDs. The database is public and will allow scientist to study the effects of this change on technology onto light pollution.
With the help of volunteers, a database of artificial light sources is being compiled. Citizens take pictures of lampposts and their spectra using a smartphone with a low cost diffraction grating on top of its camera. All the results of this project are open and can be downloaded at Epicollect5.
The images allow street lamps classification by comparison with example pictures of well known lighting systems. Finally, the results are categorized here at Zooniverse by comparison with known examples.
Before starting gathering lamps spectra you may read our manual. It includes plenty of information and may resolve all the questions you may have.