French Deeptech Startup Lightspring Secures €3.5 Million to Commercialise Optical Coupling Technology
French deep‑tech startup Lightspring raised €3.5 million (seed round plus grant) led by Atlantic, with participation from OVNI Capital and other investors. The funding will help the company commercialise its 3D lithography technology that turns costly, low‑yield photonic packaging into a programmable, single‑step manufacturing process, positioning it to serve the growing AI‑hardware market.