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Loss of the Night - the app

Help our research on skyglow. We have developed an android app that helps you count stars and thus measure sky brightness. All data are sent to the citizen science project GLOBE at Night.

The Bright Side of Night

International Conference The Bright Side of Night– Perceptions, Costs and the Governance of Lighting and Light Pollution 20th–21th of June, 2013 Erkner by Berlin, Germany. Registration ends May 17th 2013.

Manufacturing areas are lighting up the City

Mapping Lightscapes: Spatial Patterning of Artificial Lighting in an Urban Landscape - new research publication from Birmingham!

ALAN 2013: 1st Call for Poster

1st International Conference on Arficial Light at Night 28th-30th of October, 2013 Berlin, Germany The abstract submission for posters is still open

Globe at Night in 2012

Get out and observe the night sky!

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Lighting Technology

Current developments
The design of lighting systems has mostly focused on design for human needs. Light should be bright enough and should show good to very good colour rendering parameters. Ecolgical aspects were considered only regarding energy efficiency and, thus, with the reduction of carbon emissions. A profound reflection of lighting systems in regards to their visual, sanitary, ecological and social effects will show that new requirements are needed. A lighting system should only be provided in places and at times where it is really needed with the necessary intensity and quality with minimised energy consumption.

Perspectives
"Light quality" needs to be defined in more detail, including information about new aspects. Next to the well known aspects for human visual perception like the light colour or the colour rendering, also non-visual influences of artificial light on humans and the effected ecosystems need to be considered. Sustainable lighting also requires a control when artificial lighting is being used. So it should be though about installing individual adjustment measures of light intensity for the public space, like it is already being used by dimming or motion sensor solutions.