CIE S 026:2018 Tutorial

July 6, 2021 to July 13, 2021


This CIE Tutorial has been developed to support the understanding, adoption and proper application of CIE S 026/E:2018 CIE System for Metrology of Optical Radiation for ipRGC-Influenced Responses to Light.

After completion of the tutorial participants will be able to:

  • explain and apply the standardized light metrology of CIE S 026 that is based on five (a-opic) retinal photoreceptor types that influence human health and wellbeing via non-visual photoreception and circadian rhythms; and
  • characterize, compare and rudimentarily design lighting environments and spectra that use non-visual photoreception to reinforce human health, sleep, well being and performance in specific user groups.

The focus of the tutorial is the explanation and application of the a-opic metrology of CIE S 026:2018 in lighting applications, specifications, metrology and research. Invited experts will present lectures that explain the newly defined CIE metrics and quantities and the use of the  CIE Toolbox. In addition, various familiar examples like indoor lighting for the workplace and domestic settings, self-luminous displays and natural daylight will be discussed. The role and performance of wearable spectral light loggers will also be covered.

Chinese translation of CIE S 026:2018, presentation subtitles in Chinese and Q&A session Chinese audio channel made possible by CIE NC China.

Tutorial Format

  • Pre-recorded presentations - available for viewing from June 13, 2021.
  • Two live online Q&A sessions hosted by the tutorial team. Options to attend on:
    • July  6, 2021,  09:00 - 11:00 CEST (with a Chinese audio option)
    • July 13, 2021, 16:00 - 18:00 CEST
  • Questions for the Q&A sessions can be submitted in advance.
  • Certificates of participation will be issued to those who attend a Q&A seesion.

Key Information

  • Tutorial Overview - Presentation summaries and speaker bios.
  • Registration Fees 
  • Question Submission Form 
  • Question Submission From - accessible in China
  • Sponsorship Opportunities
  • ISC contributors
    • Luc Schlangen (Eindhoven University of Technology, NL)
    • Luke Price (Public Health England, GB)
    • John O’Hagan (Public Health England, GB)                                 
    • Peter Blattner (METAS, CH)
    • Wei Zhang (National Lighting Test Centre, CN)
  • Tutorial team and their presentations
    • Dr Luc Schlangen (Eindhoven University of Technology, NL): 
      Rod-, cone- and melanopsin-based metrology (CIE S 026) to quantify light for its non-visual responses
    • Prof Christian Cajochen (University of Basel, CH): 
      Circadian and sleep effects of short wavelength light
    • Dr Luke Price (Public Health England, GB): 
      CIE S 026 Toolbox introduction and demonstration of its application using familiar examples
    • Prof Timothy Brown (University of Manchester, GB): 
      Recommendations for Healthy Daytime, Evening, and Night-Time Indoor Light Exposure
    • Dr Vineetha Kalavally (Monash University, MY): 
      Wearable spectral light sensors
    • Prof Shigekazu Higuchi (Kyushu University, JP): 
      The influence of correlated colour temperature on non-visual effects of light at night
    • Dr Raymond Najjar (Singapore Eye Research Institute, SG):
      Light therapy for myopia-control?