CIE-USNC NEWS

Registration has opened for the 2026 Joint Technical Conference and Annual Meetings of the Canadian & United States CIE National Committees, together with the Council for Optical Radiation Measurement (CORM).  The conference will be held virtually on November 12^th to 13^th, 2026.  The regular conference registration fee is $100; 

Early Bird Registration is available for $75 through October 29, 2026.

Click HERE to Register.

Further information on the conference is available at https://www.cie-usnc.org/event-6748000

The Call for Contributionsfor the CIE 2027 Scientific Conference, to take place from 12-14 July, 2027 has now been published. The CIE 2027 Scientific Conference will be hosted in China as part of the CIE Quadrennial Session of the CIE in Nanjing, China (9 - 17 July, 2027). The Call for Contributions is available in PDF format here:  CIE_2027_Call_for_Contributions.pdf

Interested parties can pre-register here to receive future updates on CIE 2027, including the opening of registration and further important announcements:

https://eu.jotform.com/251673103093350

A call for presentations has been published for the 2026 Joint Annual Meeting of the Council for Optical Radiation Measurements (CORM), the U.S. National Committee of the CIE (CIE-USNC) and the Canadian National Committee of the CIE (CNC-CIE).  The meeting will be held by teleconference on 12-13 November, 2026.  For details of the event, see the listing on the CIE-USNC events calendar:  https://www.cie-usnc.org/event-6748000

The Executive Committee of the CIE-USNC announced the selection of a free publication to be made available to USNC members:  CIE 232:2019, "Discomfort Caused by Glare from Luminaires with a Non-Uniform Source Luminance."  Each national committee is entitled to select one publication per year to be made available to NC members free of charge; this year's selection was made by the EC at it's March 2025 meeting.  A copy of this report is available upon request; interested members should contact the CIE-USNC.

CIE 232:2019 was selected due to the widespread interest in the topic of discomfort glare as it applies to solid-state lighting. This report reviews evidence that the Unified Glare Rating (UGR) developed in 1995 tends to underestimate the discomfort provoked by luminaires with highly non-uniform source luminance - an issue that has become particularly relevant due to new luminaire designs enabled by the introduction of LEDs in general lighting.  The report evaluates several UGR correction methods,  and describes a preferred method, which resolves the discrepancies between UGR and perceived glare from non-uniform light sources.

"News of the death of the CIE-USNC have been greatly exaggerated," said a spokesman for the organization, announcing the launch of a new and improved website scheduled for April 2026.  The new website will restore the full functionality of the original, with updated information and several new features.  Members and sponsors of the USNC will be able to manage their accounts via a personal login, payments will be processed online, and a new blog will report on developments within the CIE that are particularly relevant to U.S. members and stakeholders.