Knowledge about the effects of light on human health, behaviour, and well-being is advancing rapidly, as is interest in applying this knowledge in lighting technologies and practice.

This… more

CIE 252:2024 Assessment of Discomfort Glare from Daylight in Buildings

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Glare models developed for electric lighting conditions are not applicable to daylight situations. This report summarizes the daylight glare prediction models which were confirmed by independent studies… more

CIE 254:2024 A roadmap toward basing CIE colorimetry on cone fundamentals

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This Technical Report presents a roadmap for the CIE, to help guide its development of a new, complete, self-consistent system of CIE colorimetric measures, based directly on cone fundamentals, with… more

CIE S 027:2024 Photometry of road illumination devices, light-signalling devices and retroreflective devices for road vehicles

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Past News and Events

18 July, 2022

CIE TC 2-98 - Call to participate

8 July, 2022

CIE Attains Full Membership of the International Science Council

4 July, 2022

New CIE Brochure

21 June, 2022 to 22 June, 2022

Linz, Palais Kaufmännischer Verein

Lighting Technology Congress 2022

18 May, 2022

CIE TC 2-97 call for participants

9 May, 2022

Celebrating the IDL - NC Turkey webinar on light, health and circadian rhythm

3 May, 2022

CIE Tutorial Planning

27 April, 2022

CIE TC 3-60 TC on Spectral Daylight Characteristics - Southern Hemisphere Data Needed

18 April, 2022 to 20 April, 2022

St. Petersburg, Russia

2nd International and Technical Conference “Light in Museum”

10 March, 2022

Message from CIE President on recent events

CIE President Dr. Jennifer Veitch Inducted as Fellow of the Royal Society of Canada

The 31st Quadrennial Session of the CIE, Nanjing, China

CIE NC China: 13th International Forum of Automative Lighting (IFAL2025)

CIE Australia Lighting Research Conference 2025

New International Standard CIE S 027:2024: A Global Milestone in Automotive Lighting Standards