The emergence of revolutionary lighting technologies in the last decade has however brought new challenges. CIE has long recognised the importance of limiting obtrusive light and issued break-through guidelines on this subject. The International Commission on Illumination (CIE), the international body for light and lighting, paves the way towards adaptive outdoor lighting where the visual needs of users are balanced against the negative impacts of obtrusive light. For example, there has yet to be agreement over common language, metrics and measurement methods and instrumentation. While obtrusive light is an interdisciplinary problem, it is still mainly addressed within disciplines, leading to a fragmented knowledge base. Obtrusive light hinders astronomic observations and has significant impact on the natural environment even at distant location. Rapid urbanization results increased quantity and concentration of artificial light at night and is leading to more and more obtrusive light which is uncontrolled in the environment. Additionally, scattering in the atmosphere contributes heavily to the increase in sky glow especially when this is assisted by certain weather conditions. The origins of this side effect are due to improper design of lighting systems, a disregard for the needs of users and a lack of information on presence and movement of the users etc. Obtrusive light is a side effect of outdoor lighting installations, which is caused by inappropriate light distribution from luminaires and light reflected from illuminated surfaces. Obtrusive light (also referred as light pollution) is a generic term for the adverse effects of artificial light on the night-time environment. Workshop Committee and Local Organizing Committee Please note that the programme will run from 10:00 to 17:00 (CET) on the first day and 09:00 to 17:30 (CET) on the second day (including the current draft programme, summaries of presentations, speaker bios)
#VISUAL LIGHTING CALCULATION FREE#
#VISUAL LIGHTING CALCULATION FOR FREE#
With the change to an online workshop the registration fees have been reduced, practical demonstrations within the workshop have been extended and two CIE publications relevant to the workshop topic have been offered to the registered participants – one for free and one for reduced price. On the links below you can find updated information about registration and some other news. Due to the current situation with the COVID-19 pandemic the workshop will now be held online.
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