News

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 CIE Position Statement is the third... more

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

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.

The cause of the... more

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

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 explicit consideration of the... more

ISO/CIE 11664-5:2024 (E) Colorimetry – Part 5: CIE 1976 L*u*v* colour space and u', v' uniform chromaticity scale diagram

This ISO/CIE International Standard was revised by the International Commission on Illumination (CIE) and is now published in cooperation with Technical Committee ISO/TC 274, Light and lighting, in collaboration with the European... more

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News

June 13, 2024

Call for contributions - Shanghai International Light Festival

June 12, 2024

Winners of the V(λ) Art Contest

June 11, 2024

Shanghai Exhibition Center

CIE at the Shanghai International Light Festival

June 11, 2024 to June 13, 2024

WHO Headquarters, Geneva, Switzerland

CIE at the WHO 2024 International Advisory Committee Meeting on Non-Ionizing Radiation

June 11, 2024

Article published by CIE members in the OIML Bulletin - “Metrology of light pollution on a legal basis: Current and future challenges”

June 10, 2024

CCPR-CIE Expert workshop: Celebrating the centennial of the V(λ) spectral luminous efficiency function

June 3, 2024

Light up your inner muse! Celebrating 100 years of V(λ) with the art of light

May 28, 2024

Recording of the CIE NC Türkiye Special Webinar is now available

May 27, 2024

Interview with CIE President Dr. Jennifer Veitch in LED Professional Review

May 21, 2024

Recording of the CIE Special Webinar "SpotLIGHT on the UN Sustainable Development Goals"

Pages

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

The Balkan Light 2024 Conference: “Future of Lighting: Efficient and Intelligent”

CIE Q&A Sessions for National Committees, Associate National Committees, Affiliate and Supportive Members

CIE at the IEEE Sustainable Smart Lighting World Conference (LS2024)

CIE USNC Webinar: "Measuring Light for Vision, Health, and Everything Else"