CIE Midterm Meeting Vienna, Austria 2025

July 4, 2025 to July 11, 2025
Austria Center Vienna

Organizer: CIE Central Bureau in Vienna

Sponsored by:

First Call Announcement

We are excited to invite you to Vienna, renowned for its cultural richness and recognized as one of world’s foremost hubs of musical excellence, to join us in the CIE’s Midterm Meeting 2025!

The CIE Midterm Meeting features the Scientific Conference CIE 2025, to be held from July 7-9, 2025. This three-day conference brings together the CIE community and its stakeholders to advance the science of light and lighting, as well as the technical and organizational work of the CIE. The scientific conference will be preceded by the CIE General Assembly and other administrative meetings from July 4-6, 2025, and followed by the CIE Division and Technical Committee (TC) meetings on July 10th and 11th, 2025.

At the upcoming conference, all six scientific Divisions will discuss crucial topics, including the impacts of the digital age and artificial intelligence on lighting, controls, and measurement. Discussions will also explore the application of cone fundamentals in understanding light perception, alongside addressing the health impacts of temporally modulated light and glare, evaluation of virtual and augmented reality displays, and efforts to minimize obtrusive light and sky glow, reflecting CIE's global commitment to advancing light and lighting technologies.

More details are available on the conference website here.

First Announcement (pdf) Call for papers and submissions

Meeting Agenda
  • 4 - 6 July, 2025: CIE Statutory Bodies Meetings
  • 7 - 9 July, 2025: CIE Scientific Conference (6 July, 2025 - Welcome reception)
  • 10 - 11 July, 2025: CIE Division & TC Meetings

Important Dates
  • 13 September, 2024: Final Call for Contributions, Submission opens
  • 15 November, 2024: Conference registration opens
  • 10 December, 2024: Close of short paper submission
  • 01 May, 2025: Early bird registration ends

Keynote Speakers
  • Dr. Stephen Westland, Professor of Colour Science and Technology at the School of Design, University of Leeds, UK
  • Dr. Dietmar Hager, Astro-photographer, Stargazer Observatory, Austria
  • Dr. George Brainard, Professor of Neurology and Neuroscience, Director of the Light Research Program, Thomas Jefferson University, USA

Exhibiton and Sponsorship

This key CIE event would not be complete without an exhibition platform – a place for exhibitors to share products or service information and for visitors, to provide opportunities to connect, and for business exchange to take place.

As an exhibitor or sponsor, you have the opportunity to market yourself to an international audience of those involved in the research, development and application of lighting technologies, from teaching and research professionals, to utility practitioners who are applying lighting solutions around the world. Having an exhibitor’s stand with your company information has many advantages. It will be located in the refreshments area, and will ensure a good flow of traffic. You get the chance to demonstrate your products and have opportunities to interact with many technical experts including students.

Depending on the level of sponsorship, you will be given complimentary advertising space, and display of your logo in various publications and around the conference venue, and of course your company presence on the conference website. A brochure for the exhibition and sponsorship opportunites at CIE 2025 has been prepared.

Learn more on the event website here.


CIE conferences unite the worldwide lighting community to explore cutting-edge research and scientific findings on light and lighting, and optical radiation. Whether you are a scientist, lighting professional, engineer, student, or simply passionate about light, CIE 2025 promises to connect you with like-minded individuals who share your enthusiasm.

We eagerly anticipate welcoming you to Vienna in the summer of 2025!