Canadian National Committee of the CIE

Welcome to our website. The CNC/CIE is the collective Canadian voice of people interested in the science and art of light and lighting. Membership is open to anyone interested in any aspect of lighting including vision, photometry, colorimetry, photobiology and the application of these to the use of light and lighting both indoors and out. For further information on the CNC/CIE go to About the CNC. For a list of recent events see our Activities page.

As part of its mandate, the CNC/CIE supports the Standards Council of Canada by providing the core of the membership of the Canadian mirror committee to ISO/TC 274 – Light and Lighting. ISO/TC 274 is responsible for standardization in the field of application of lighting in specific cases complementary to the work items of the CIE and the coordination of drafts standards from the CIE. For further information on ISO/TC 274 see About ISO/TC 274 or visit the ISO website.


Joint Biennial CNC/CIE, CIE-USNC, & CORM Conference November 6 to 8, 2023

The CNC/CIE will hold a joint Technical Conference with the United States CIE National Committee (USNC-CIE) and the Council for Optical Radiation Measurements (CORM). Abstracts are welcome, for oral presentations, on any topic related to optical radiation, light, lighting, and vision, including but not limited to:

Vision and Color
Physical Measurement of Light 
UV and IR Radiation
Optical Properties of Materials
Interior Environment and Lighting Design
Transportation and Exterior Lighting Applications
Photobiology and Photochemistry
Image Technology
Current Research at National Metrology Institutes

There will be an educational session on glare metrics, models and standards. Confirmed speakers include  Belal Abboushi and Naomi Miller from Pacific Northwest National Laboratory, Mehlika Inanici from the University of Washington, and John Bullough from the Mount Sinai Light and Health Research Center.  We are inviting abstracts that feature new research about glare to complement the education session.
In addition to the glare session, Lorne Whitehead will present an update on the progress of  Technical Committee 1-98, “A Roadmap Toward Basing CIE Colorimetry on Cone Fundamentals”.

Presentations will be approximately 20 minutes, depending on the number of abstracts received.  Abstracts should be 250 words or less. Abstracts should be submitted to the This email address is being protected from spambots. You need JavaScript enabled to view it.. More details about the conference will be posted when available on the websites of the  CNC/CIE, USNC-CIE and CORM.

!!NEW Registration fee will be $50 USD. Students, post-docs and retirees are free. Registration details will be announced after September 15th.

The deadline for receipt of abstracts is September 15th 2023.

In memoriam, Ian Ashdown, PEng (Ret), FIES

With great sadness, we announce the passing of our esteemed colleague, Ian Ashdown, PEng (Ret), FIES, on June 14, 2023. Ian enjoyed an over 40-year career in lighting design, research and development, and software engineering, most recently as Senior Scientist and co-founder of SunTracker Technologies Ltd. His scientific and technical accomplishments were recognized in 2017 with the Illuminating Engineering Society Medal Award, its highest honour. Ian’s latest work was in horticulture lighting and optical radiation in health care. He was meticulous in carrying out his work and adhered to the highest standards of scientific integrity, setting a high bar for all who work in light and lighting.  Ian was an active member of the Optical Society of America, Illuminating Engineering Society and our organization. Ian’s contributions to our organization were always welcome and appreciated, and they will be greatly missed.  

Online tributes to Ian are many, including here: Vancouver Sun and Province: Ian Ashdown.

2022 Annual Meeting

The 67th Annual Meeting of the CNC/CIE was held on Monday, November 21st 2022. The final report from that meeting has been approved and is available here.

President-elect of the CIE

The CNC/CIE is please to announce that Dr. Jennifer Veitch has been appointed as President-elect of the CIE for the period 2021-2023. At the Quadrennial meeting in 2023, she will take on the role of President of the CIE for the period 2023-2027.

Canadian Mirror Committee to ISO/TC 274 News

2022 Annual Meeting

The annual meeting of the Canadian Mirror Committee to ISO/TC 274 was held as part of the CNC/CIE Annual Meeting.

CIE News

Explore CIE's Comprehensive Datasets and Metadata Resource - Now Available Online

Looking for CIE datasets, like the new CIE L41 LED reference spectrum or the more traditional standard Illuminant A? For you, the CIE has curated its key and most popular FAIR datasets.

The datasets are easily findable on the CIE website along with references to the internationally approved CIE publications where they were originally published.

If you want more details, join the CIE Webinar on Zoom on Friday September 1, 2023, from 14:00 to 15:30 CEST.  Register on Zoom

CIE 2023

CIE 2023 will be hosted by the CIE National Committee of Slovenia in Ljubljana, September 15-23, 2023, with the conference on September 18-20, 2023 and the CIE Division and Technical Committee meetings on September 21-23, 2023. The broad theme of the CIE 2023 conference is "Innovative Lighting Technologies".

!!N.B. The deadline for early registration is 31 July 2023For further information, visit the CIE 2023 website.


New CIE Research Forum: Lighting in the Usage of Augmented, Virtual, and Mixed Reality Devices

CIE has a new Research Forum (RF-04) on Lighting in the usage of augmented, virtual, and mixed reality devices. It aims to research the lighting issues raised from potential applications and scenarios of Augmented Reality (AR) technology. These potential applications include but are not limited to map navigation, industrial workshop assembly drawings, and instructions, security alert and target identification, medical surgery application, etc. If you want to join in the discussion of RF-04 then simply complete the TC and RF Membership Application form (filling in the requirements for RF membership) and send it to This email address is being protected from spambots. You need JavaScript enabled to view it. for passing on to Molly Mou,the RF-04 Convener.

Call for Experts

CIE has over 70 Technical Committees (TCs) working on new reports and international standards. A brief description of each TC is available under CIE Technical Committees. If you have expertise to contribute to any of these, especially the new ones shown below, you can apply for membership by sending a completed CIE TC Membership form and CIE Copyright Agreement form  to the relevant TC Chair, with a copy to the This email address is being protected from spambots. You need JavaScript enabled to view it. and the CNC/CIE Secretariat. Please note that all Canadian members of TCs must be or become members of the CNC/CIE.

JTC 20 (D6/D2) Wearable alpha-opic dosimetry and light logging methods, limitations, device calibration and data schemes

In addition to Technical Committee, you are encouraged to participate in CIE Research Fora (RFs). RFs exist to facilitate ongoing knowledge exchange and research on a scientific topic or research area where there is insufficient completed scientific work to support the work of a CIE Technical Committee. 

Currently the CIE has four RFs:

RF-01: Spectral Imaging
RF-02: Matters relating to temporal light modulation
RF-03: Matters related to Colour Rendition
F-04: Lighting in the usage of augmented, virtual, and mixed reality devices

CIE Publications

One key activity of the CIE is the publication of technical and scientific work in the form of Technical Reports, International Standards, and Technical Notes. Technical Notes are freely available. Technical Reports and International Standards can be purchased through the CIE Web Shop. Summaries of recent publications, including links to recent Technical Notes, can be found under New Publications.

In addition to formal publications, the CIE Board of Administration will, from time to time, issue Position Statements. Summaries of recent CIE Position Statements can be found here.

Members of the CNC/CIE are reminded that they are able to get a discount on all CIE publications. The latest discount code, effective December 2020, is currently available in the members only area under Publication Discount Code. To log in, go to CNC/CIE Members. If you do not have access, please contact the CNC/CIE Secretariat.

For general enquiries contact the This email address is being protected from spambots. You need JavaScript enabled to view it..