CIE 2025 in Vienna

CIE Midterm Meeting Vienna 2025, 4 – 11 July, 2025

Dr. Jennifer Veitch

President, CIE

Dr. Diana Wernisch

Secretary General, CIE

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 Divisions and Technical Committee (TC) meetings on July 10-11, 2025.

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Stay tuned for the latest updates on the CIE Midterm Meeting 2025, including venue details, speaker announcements, and schedule highlights. We’ll keep you informed about all key developments leading up to the event.

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Messages

We are very proud to be part of the dynamic and networked CIE community as a Gold Sponsor of the CIE Midterm Meeting and look forward to an exciting and inspiring exchange in Vienna. We have a lot to say, especially on the core topics of lighting quality, energy efficiency, sustainability, as well as IoT and light management. Come along and join the discussion.

Sebastian Trägner, CTO, TRILUX

Gigahertz Optik is proud to be a sponsor of the CIE 2025, supporting the progress of lighting science and technology. For over 30 years, we have provided innovative and precise light measurement solutions, empowering researchers and industries in many different fields worldwide. Together, we illuminate the future of photonics!

Sebastian Seuferling, Head of Technical Sales, Gigahertz Optik GmbH

It is our great honour to be the sponsor of CIE 2025, which will absolutely be an inspiring and remarkable scientific event. EVERFINE and I have been engaged with CIE for over 20 years, and we are grateful for its excellent academic platform and the friendships formed with CIE experts. This event is in perfect harmony with EVERFINE’s core values and mission: “Materially and spiritually benefit the world and then ourselves further and forever, i.e., be EVERFINE by precision.” We look forward seeing you in Vienna!

Prof. Jiangen Pan, Founder and Chief Scientific Officer (CSO) of EVERFINE

Heliobus brings daylight into dark, enclosed spaces where people live and work.

Dr. Miroslav Fabian, CEO, Heliobus AG

On behalf of the International Scientific Programme Committee, it is my pleasure to invite you to take part in what promises to be a highly stimulating and enjoyable scientific conference. With a great range of keynote speakers and workshops covering an exciting variety of topics; the meetings of all six of CIE’s scientific Divisions; and of course a packed social programme, this conference promises to be one to remember with something for everyone. I look forward to seeing you there!

Tony Bergen, CIE Vice-President Technical, ISPC Chair

Are you aware that assessing glare and obtrusive light caused by daylight or electric light is very challenging in practice? Our metrological approach to quantifying these extreme lighting conditions involves High Dynamic Range (HDR) Luminance Imaging. In this context, I would like to invite you to our dedicated workshop, “HDR Imaging for Assessment of Glare and Obtrusive Light,” where you can explore state-of-the-art HDR measurement solutions, gain insights into ongoing scientific research, and discuss future developments. You are welcome to bring your ideas and questions for a fruitful open discussion.

Dr. Constantinos Bouroussis, Chair of CIE TC2-95, CIE2025 Workshop Convener

Road lighting is at an interesting point of transition. There have been significant changes in technology (with a shift towards LEDs), in considerations (regarding the wider impacts of lighting), and in understanding (particularly the uncertain basis of current guidance). In response, CIE is working on revising CIE115. This workshop, titled “Rapid Revision of CIE 115 Lighting of Roads for Motor and Pedestrian Traffic,” will outline the need for change, summarise the proposed revision process, and provide workshop attendees an opportunity to share their opinion on these plans.

Prof. Steve Fotios, Chair of CIE TC4-52, CIE2025 Workshop Convener