Slide Turn your smartphone into a scientific instrument to analyze lamps colors and their spectra using a grating on top of its camera. This project is a collaboration between UCM and ACTION

The project

Street spectra

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 considered the primary output of the project. It is public and will allow scientist to study the effects of this change on technology onto light pollution.

Check the database

We are open access

All the results of this project are open and can be downloaded at the epicollect5 webpage. The images allow street lamps classification by comparison with example pictures of well known lighting systems.

We are currently using epicollect5 mobile & web application to collect the data

Add your pictures to the database

Spanish & English

Read the manual before you start

Turn your smartphone into a scientific instrument to analyze lamps colors and their spectra and join your results with the community.

Follow these simple steps

  • Manual

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  • Grating

    Get your diffraction grating

  • Habitant morbi

    Place your grating on top of your phone camera

  • Epicollect5

    Download epicollect5 application on your phone

  • Pictures

    Take pictures of different light sources.

  • Share your results

    Upload your pictures to our database

  • Manual

    Download and check the manual

  • Grating

    Get your diffraction grating

  • Position

    Place your grating on top of your phone camera

  • Epicollect5

    Download epicollect5 application on your phone

  • Pictures

    Take pictures of different light sources.

  • Share your results

    Upload your pictures to our database

Our team
Jaime Zamorano

Professor of Astrophysics

Rafael González

Telecommunication Engineer

Esteban González

Computer Engineer

José Gómez

Physicist and engineer

Lucía García

Physicist

Street Spectra is part of ACTION project

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This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 824603.

jzamorano@fis.ucm.es