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Division 4 News and Events

Bureau International des Poids et Mesures (BIPM) in Sèvres, France

CCPR-CIE Expert Workshop "100 Years of V(Lambda) and The Future of Photometry'"

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

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Messe Frankfurt, Ludwig-Erhard-Anlage 1 | Frankfurt am Main

CIE at the Light + Building Trade Fair 2024

CIE Volunteer Survey

Proceedings of the 30th Quadrennial Session of the CIE is now published

We are pleased to announce the release of the Proceedings of the 30th Quadrennial Session of the CIE: Innovative Lighting Technologies (Volume 1 and Volume 2), held in Ljubljana, Slovenia from September 15-23, 2023!

2023 Gold Pin Awardees announced

CIE Datasets Available Online

Catch the recorded webinar and slide deck

ANC CIE Chinese Taipei Seminar Practical Application of UV Radiation Sources

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CIE TC 4-50 collection call for “r-tables” data

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CIE Tutorial on Urban Lighting Masterplanning