CIE Expert Tutorial and Symposium on the Measurement of Temporal Light Modulation

October 10, 2022 to October 11, 2022
National Technical University of Athens, Greece


Temporal light modulation (TLM) causes visual perception effects such as flicker, phantom array and stroboscopic effects. All of these issues can have adverse effects on users of lighting products (such as performance and health), thus the accurate assessment of TLM is fundamental to proper assessment of its effects on users. 

To support the current understanding and to explore current research on this topic the CIE is holding an event that includes a one-day expert tutorial and a one-day symposium.

The first day of this event will be a CIE Expert Tutorial on the Measurement of Temporal Light Modulation. Topics covered in the tutorial will include: what is TLM, how TLM affects us, how to measure TLM accurately, tips on calculation of predictors of temporal light artifacts (TLA) and guidance on measurement uncertainty evaluation.
The tutorial team has experts from around the world including: Jennfer Veitch (CA), Peter Blattner (CH), Menno Schakel (DE), Paul Dekker (NL), Costis Bouroussis (GR), Małgorzata (Gosia) Perz (NL), Anders Thorseth (DK)., Tony Bergen (AU).

The second day of the event will be a CIE Symposium on Advances in Measurement of Temporal Light Modulation. This one-day scientific symposium will feature contributed papers following submission and review of abstracts. Abstract submission will open in March 2022. A poster session might be held depending on the number of abstracts received.

In addition to this event the Division 2 Annual Meeting and Technical Committees Meetings will take place at the same location from October 12-14, 2022.

Who should attend: The tutorial and symposium will be of benefit to testing laboratories, lighting companies, equipment manufacturers, researchers, market surveillance and product testing authorities, students and anyone else who is interested in all aspects of TLM, as well as researchers undertaking fundamental psychophysical research on TLAs. 

As a special offer for this event, attendees registered for both the tutorial and symposium will receive a complimentary copy of the new CIE Technical Report CIE 249:2022 “Visual aspects of time modulated lighting systems”. Those registered for either the tutorial or the symposium will have the opportunity to purchase CIE 249:2022 with a discount of 70 % of the Webshop price.

Registration is not open yet but if you are interested and want to be advised about when registration or the abstract submission system are open or about sponsorship opportunities then let us know by completing this form.

For more information about the event check out the links in the list below as they are added.

  • Symposium abstract submission OPEN
    Deadline 2022-05-13
    Abstracts are invited on the following topics related to TLM:
    • implementation of CIE TN 012:2021;
    • advances in instrumentation and measurement procedures;
    • calibration methods;
    • advanced measurement uncertainty analysis;
    • interlaboratory comparisons; 
    • psychophysical studies;
    • methods and algorithms for calculation of TLAs.
  • Key dates
  • Sponsorship opportunities
  • International Scientific Committee (ISC)
    • Tony Bergen, Chair (AU)
    • Costis Bouroussis, Co-Chair (GR)
    • Dong-Hoon Lee (KR)
    • Cherry Li (CN)
    • Paul Dekker (NL)
    • Anders Thorseth (DK)

Note on participation at the symposium by symposium presenters:
The symposium is expected to be an in-person event. Authors submitting abstracts, which are later accepted for presentation at the symposium, are expected to register for the event and to attend in-person.

However, should there be an exceptional circumstance preventing in-person attendance then the paper may be presented online at the time designated in the symposium programme. An example of an exceptional circumstance would be travel restrictions directly related to COVID-19. This exception applies only to potential presenters at the symposium and in all cases will require approval of the symposium ISC.