Nonimaging Optics: Efficient Design for Illumination and Concentration XX
Part of SPIE Optics + Photonics 2025
San Diego, California, USA · 3–7 August 2025
About the Conference
The Nonimaging Optics conference at SPIE Optics + Photonics is the main annual meeting for researchers in nonimaging optics, illumination design, and solar concentration optics. We feature presentations ranging from foundational theory to cutting-edge applications.
The 2025 conference is now complete. Browse the program and highlights below, and stay tuned for upcoming details about the 2026 conference!
What's next
2026 Nonimaging Optics Conference
TBA
Dates will be announced here. Stay tuned.
Thank you for making our 20th anniversary conference a success!
Optical Design Competition: 2025 Results
This year's competition winners were Ludo Haenen (Signify) for the overall best submission at 53.3% efficiency, and Alex Lehmann (UNSW) for the best submission among conference attendees at 31.4% efficiency.
Congratulations to both winners for their impressive designs!
Best Student & Postdoc Presentation: 2025
This year's award was a tie between Wai Qian Tham (Trinity College Dublin) and Zijun Zhang (Zhejiang University).
Congratulations to both winners for their outstanding presentations!
Calls
2026 Call for Papers
The 2026 call for papers will be announced soon. Check back here for updates!
2025 Call for Papers
The call for papers for the 2025 conference closed on 12 February 2025, with post‑deadline submissions accepted through 16 June 2025.
View 2025 call