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!

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!

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!

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

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.