Division 4 News and Events

May 22, 2018 to May 23, 2018

Technische Universität Berlin, Berlin Germany

Division 4 Annual Meeting 2018

CIE Division 4 will hold its Annual Meeting and Technical Meetings in Berlin, Germany.
Draft Programme

May 24, 2018 to May 25, 2018

Technische Universität Berlin, Berlin Germany

CIE Workshop on a New Vision of Visibility for Roadway Lighting

General information 
Registration information - deadline May 21 (no on-site registration)

Programme Overview
Abstract Booklet

January 10, 2019

Call for Information on National Regulations and Standards on Obtrusive Light

TC 4-58 is preparing a guideline on obtrusive light from colourful and dynamic lighting. For this purpose, the TC is collecting information on existing national and regional regulation, standards and guidance documents for obtrusive lighting (i.e. light emission and ingression). We therefore would be grateful if you could provide some information on obtrusive lighting in your country, with emphasize on coloured and dynamic aspects. Please send all relevant material to the chair of the TC Steve Lau at Stevelau@china-yd.com on or before 2019-03-15.

June 19, 2020

EMPIR SURFACE project webinar

To share SURFACE results, the consortium is organizing a series of live
webinar in the months before the end of the project.

October 5, 2020 to October 9, 2020

IAU/IAC Dark and Quiet Skies Workshop