Lightin

Lightin (光粒科技) is a Chinese smart-sports eyewear brand built on holographic lightwave-guide AR technology. Linear Capital was its sole angel-round investor and has continued to back it in later rounds . The company started with a single product, the Holoswim AR smart swim goggle, and by early 2026 had expanded into a multi-scenario portfolio covering swimming, running, cycling, and outdoor use . Its Holoswim line entered Decathlon stores in 2025 and began selling in France, Germany, Italy, Russia, the US, Brazil, Australia, Japan, and South Korea; overseas sales now account for roughly half of total volume . In March 2026 Lightin closed a nearly RMB 100 million Pre-B round to fund team expansion, R&D, and global marketing . It has also partnered with fashion eyewear brand LOHO to co-launch what the two sides call the world's first AR smart sports glasses .